./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9 --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 64bit --witnessprinter.graph.data.programhash 1a93b4c325da61bdb0bcf5f7bfce47877e5238073f7401e4883b579f193ca117 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:35:36,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:35:36,700 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 23:35:36,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:35:36,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:35:36,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:35:36,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:35:36,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:35:36,733 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:35:36,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:35:36,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:35:36,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:35:36,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:35:36,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:35:36,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:35:36,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:35:36,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:35:36,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:35:36,739 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:35:36,739 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:35:36,740 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:35:36,740 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:35:36,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:35:36,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:35:36,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:35:36,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:35:36,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:35:36,743 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:35:36,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:35:36,744 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:35:36,744 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_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a93b4c325da61bdb0bcf5f7bfce47877e5238073f7401e4883b579f193ca117 [2023-12-02 23:35:36,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:35:36,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:35:36,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:35:36,984 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:35:36,984 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:35:36,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c [2023-12-02 23:35:39,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:35:39,951 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:35:39,952 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c [2023-12-02 23:35:39,961 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/data/73328ccb0/48dcc2f95aa84e52b05d634388f9ba62/FLAG2e72f9d1a [2023-12-02 23:35:39,976 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/data/73328ccb0/48dcc2f95aa84e52b05d634388f9ba62 [2023-12-02 23:35:39,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:35:39,980 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:35:39,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:35:39,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:35:39,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:35:39,987 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:35:39" (1/1) ... [2023-12-02 23:35:39,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de67842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:39, skipping insertion in model container [2023-12-02 23:35:39,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:35:39" (1/1) ... [2023-12-02 23:35:40,016 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:35:40,166 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_3ee2985f-d9a5-4805-bb68-270b3c28c46a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c[1248,1261] [2023-12-02 23:35:40,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:35:40,223 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:35:40,232 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_3ee2985f-d9a5-4805-bb68-270b3c28c46a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c[1248,1261] [2023-12-02 23:35:40,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:35:40,274 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:35:40,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40 WrapperNode [2023-12-02 23:35:40,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:35:40,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:35:40,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:35:40,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:35:40,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40" (1/1) ... [2023-12-02 23:35:40,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40" (1/1) ... [2023-12-02 23:35:40,332 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 210 [2023-12-02 23:35:40,332 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:35:40,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:35:40,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:35:40,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:35:40,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40" (1/1) ... [2023-12-02 23:35:40,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40" (1/1) ... [2023-12-02 23:35:40,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40" (1/1) ... [2023-12-02 23:35:40,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40" (1/1) ... [2023-12-02 23:35:40,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40" (1/1) ... [2023-12-02 23:35:40,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40" (1/1) ... [2023-12-02 23:35:40,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40" (1/1) ... [2023-12-02 23:35:40,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40" (1/1) ... [2023-12-02 23:35:40,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:35:40,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:35:40,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:35:40,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:35:40,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:40" (1/1) ... [2023-12-02 23:35:40,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:35:40,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:35:40,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:35:40,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:35:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:35:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:35:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:35:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:35:40,520 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:35:40,521 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:35:40,866 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:35:41,094 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:35:41,094 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:35:41,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:35:41 BoogieIcfgContainer [2023-12-02 23:35:41,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:35:41,097 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:35:41,097 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:35:41,107 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:35:41,107 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:35:41" (1/1) ... [2023-12-02 23:35:41,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:35:41,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:35:41,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 23:35:41,169 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 23:35:41,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 23:35:41,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:35:41,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:35:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:35:42,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:35:42,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 23:35:42,054 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 23:35:42,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:35:42,054 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:35:42,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:35:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:35:42,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:35:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:35:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:35:42,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:35:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:35:43,174 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-02 23:35:43,207 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 23:35:43,207 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 23:35:43,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:35:43 ImpRootNode [2023-12-02 23:35:43,215 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:35:43,215 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:35:43,216 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:35:43,216 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:35:43,216 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:35:41" (3/4) ... [2023-12-02 23:35:43,218 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 23:35:43,220 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:35:43,221 INFO L158 Benchmark]: Toolchain (without parser) took 3240.36ms. Allocated memory is still 197.1MB. Free memory was 154.8MB in the beginning and 93.8MB in the end (delta: 61.1MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. [2023-12-02 23:35:43,221 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 138.4MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:35:43,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.43ms. Allocated memory is still 197.1MB. Free memory was 154.4MB in the beginning and 141.7MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 23:35:43,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.00ms. Allocated memory is still 197.1MB. Free memory was 141.7MB in the beginning and 136.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 23:35:43,223 INFO L158 Benchmark]: Boogie Preprocessor took 46.56ms. Allocated memory is still 197.1MB. Free memory was 136.7MB in the beginning and 134.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:35:43,224 INFO L158 Benchmark]: RCFGBuilder took 715.61ms. Allocated memory is still 197.1MB. Free memory was 134.3MB in the beginning and 125.8MB in the end (delta: 8.5MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2023-12-02 23:35:43,224 INFO L158 Benchmark]: CodeCheck took 2118.13ms. Allocated memory is still 197.1MB. Free memory was 125.8MB in the beginning and 94.8MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 23:35:43,225 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 197.1MB. Free memory was 94.8MB in the beginning and 93.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:35:43,228 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 1 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 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, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 21]: 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 bitwiseOr at line 79, overapproximation of bitwiseAnd at line 60. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_3 var_4 = 0; [L33] const SORT_1 var_13 = 1; [L34] const SORT_3 var_19 = 255; [L35] const SORT_3 var_23 = 1; [L37] SORT_1 input_2; [L39] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L39] SORT_3 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L40] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L40] SORT_3 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L42] SORT_3 init_6_arg_1 = var_4; [L43] state_5 = init_6_arg_1 [L44] SORT_3 init_8_arg_1 = var_4; [L45] state_7 = init_8_arg_1 VAL [init_6_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_3=255, msb_SORT_1=1, msb_SORT_3=128, state_5=0, state_7=0, var_13=1, var_19=255, var_23=1, var_4=0] [L48] input_2 = __VERIFIER_nondet_uchar() [L51] SORT_3 var_9_arg_0 = state_5; [L52] SORT_3 var_9_arg_1 = state_7; [L53] SORT_1 var_9 = var_9_arg_0 > var_9_arg_1; [L54] SORT_1 var_10_arg_0 = var_9; [L55] SORT_1 var_10 = ~var_10_arg_0; [L56] SORT_1 var_14_arg_0 = var_10; [L57] SORT_1 var_14 = ~var_14_arg_0; [L58] SORT_1 var_15_arg_0 = var_13; [L59] SORT_1 var_15_arg_1 = var_14; [L60] EXPR var_15_arg_0 & var_15_arg_1 [L60] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L61] EXPR var_15 & mask_SORT_1 [L61] var_15 = var_15 & mask_SORT_1 [L62] SORT_1 bad_16_arg_0 = var_15; [L63] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L63] RET __VERIFIER_assert(!(bad_16_arg_0)) [L65] SORT_3 var_25_arg_0 = state_5; [L66] SORT_3 var_25_arg_1 = state_7; [L67] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L68] SORT_3 var_24_arg_0 = state_5; [L69] SORT_3 var_24_arg_1 = var_23; [L70] SORT_3 var_24 = var_24_arg_0 + var_24_arg_1; [L71] SORT_3 var_18_arg_0 = state_5; [L72] SORT_3 var_18_arg_1 = state_7; [L73] SORT_1 var_18 = var_18_arg_0 > var_18_arg_1; [L74] SORT_3 var_20_arg_0 = state_7; [L75] SORT_3 var_20_arg_1 = var_19; [L76] SORT_1 var_20 = var_20_arg_0 != var_20_arg_1; [L77] SORT_1 var_21_arg_0 = var_18; [L78] SORT_1 var_21_arg_1 = var_20; [L79] EXPR var_21_arg_0 | var_21_arg_1 [L79] SORT_1 var_21 = var_21_arg_0 | var_21_arg_1; [L80] EXPR var_21 & mask_SORT_1 [L80] var_21 = var_21 & mask_SORT_1 [L81] SORT_1 var_22_arg_0 = var_21; [L82] SORT_3 var_22_arg_1 = state_5; [L83] SORT_3 var_22_arg_2 = state_7; [L84] SORT_3 var_22 = var_22_arg_0 ? var_22_arg_1 : var_22_arg_2; [L85] SORT_1 var_26_arg_0 = var_25; [L86] SORT_3 var_26_arg_1 = var_24; [L87] SORT_3 var_26_arg_2 = var_22; [L88] SORT_3 var_26 = var_26_arg_0 ? var_26_arg_1 : var_26_arg_2; [L89] EXPR var_26 & mask_SORT_3 [L89] var_26 = var_26 & mask_SORT_3 [L90] SORT_3 next_27_arg_1 = var_26; [L91] SORT_3 var_33_arg_0 = state_5; [L92] SORT_3 var_33_arg_1 = state_7; [L93] SORT_1 var_33 = var_33_arg_0 > var_33_arg_1; [L94] SORT_3 var_29_arg_0 = state_5; [L95] SORT_3 var_29_arg_1 = state_7; [L96] SORT_1 var_29 = var_29_arg_0 == var_29_arg_1; [L97] SORT_3 var_30_arg_0 = state_7; [L98] SORT_3 var_30_arg_1 = var_19; [L99] SORT_1 var_30 = var_30_arg_0 != var_30_arg_1; [L100] SORT_1 var_31_arg_0 = var_29; [L101] SORT_1 var_31_arg_1 = var_30; [L102] EXPR var_31_arg_0 | var_31_arg_1 [L102] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L103] EXPR var_31 & mask_SORT_1 [L103] var_31 = var_31 & mask_SORT_1 [L104] SORT_3 var_28_arg_0 = state_7; [L105] SORT_3 var_28_arg_1 = var_23; [L106] SORT_3 var_28 = var_28_arg_0 + var_28_arg_1; [L107] SORT_1 var_32_arg_0 = var_31; [L108] SORT_3 var_32_arg_1 = var_28; [L109] SORT_3 var_32_arg_2 = state_5; [L110] SORT_3 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; [L111] SORT_1 var_34_arg_0 = var_33; [L112] SORT_3 var_34_arg_1 = state_7; [L113] SORT_3 var_34_arg_2 = var_32; [L114] SORT_3 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L115] EXPR var_34 & mask_SORT_3 [L115] var_34 = var_34 & mask_SORT_3 [L116] SORT_3 next_35_arg_1 = var_34; [L118] state_5 = next_27_arg_1 [L119] state_7 = next_35_arg_1 VAL [bad_16_arg_0=0, init_6_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_3=255, msb_SORT_1=1, msb_SORT_3=128, next_27_arg_1=1, next_35_arg_1=0, state_5=1, state_7=0, var_10=255, var_10_arg_0=0, var_13=1, var_14=0, var_14_arg_0=255, var_15=0, var_15_arg_0=1, var_15_arg_1=0, var_18=0, var_18_arg_0=0, var_18_arg_1=0, var_19=255, var_20=1, var_20_arg_0=0, var_20_arg_1=255, var_21=1, var_21_arg_0=0, var_21_arg_1=1, var_22=0, var_22_arg_0=1, var_22_arg_1=0, var_22_arg_2=0, var_23=1, var_24=1, var_24_arg_0=0, var_24_arg_1=1, var_25=1, var_25_arg_0=0, var_25_arg_1=0, var_26=1, var_26_arg_0=1, var_26_arg_1=1, var_26_arg_2=0, var_28=1, var_28_arg_0=0, var_28_arg_1=1, var_29=1, var_29_arg_0=0, var_29_arg_1=0, var_30=1, var_30_arg_0=0, var_30_arg_1=255, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_32=1, var_32_arg_0=1, var_32_arg_1=1, var_32_arg_2=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=0, var_34_arg_2=1, var_4=0, var_9=0, var_9_arg_0=0, var_9_arg_1=0] [L48] input_2 = __VERIFIER_nondet_uchar() [L51] SORT_3 var_9_arg_0 = state_5; [L52] SORT_3 var_9_arg_1 = state_7; [L53] SORT_1 var_9 = var_9_arg_0 > var_9_arg_1; [L54] SORT_1 var_10_arg_0 = var_9; [L55] SORT_1 var_10 = ~var_10_arg_0; [L56] SORT_1 var_14_arg_0 = var_10; [L57] SORT_1 var_14 = ~var_14_arg_0; [L58] SORT_1 var_15_arg_0 = var_13; [L59] SORT_1 var_15_arg_1 = var_14; [L60] EXPR var_15_arg_0 & var_15_arg_1 [L60] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L61] EXPR var_15 & mask_SORT_1 [L61] var_15 = var_15 & mask_SORT_1 [L62] SORT_1 bad_16_arg_0 = var_15; [L63] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 138.4MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.43ms. Allocated memory is still 197.1MB. Free memory was 154.4MB in the beginning and 141.7MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.00ms. Allocated memory is still 197.1MB. Free memory was 141.7MB in the beginning and 136.7MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.56ms. Allocated memory is still 197.1MB. Free memory was 136.7MB in the beginning and 134.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 715.61ms. Allocated memory is still 197.1MB. Free memory was 134.3MB in the beginning and 125.8MB in the end (delta: 8.5MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * CodeCheck took 2118.13ms. Allocated memory is still 197.1MB. Free memory was 125.8MB in the beginning and 94.8MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 197.1MB. Free memory was 94.8MB in the beginning and 93.8MB 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 [2023-12-02 23:35:43,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9 --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 64bit --witnessprinter.graph.data.programhash 1a93b4c325da61bdb0bcf5f7bfce47877e5238073f7401e4883b579f193ca117 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:35:45,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:35:45,203 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 23:35:45,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:35:45,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:35:45,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:35:45,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:35:45,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:35:45,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:35:45,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:35:45,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:35:45,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:35:45,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:35:45,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:35:45,242 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:35:45,243 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:35:45,244 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:35:45,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:35:45,244 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:35:45,245 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:35:45,245 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:35:45,246 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:35:45,246 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:35:45,247 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:35:45,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:35:45,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:35:45,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:35:45,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:35:45,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:35:45,249 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:35:45,249 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:35:45,250 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:35:45,250 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:35:45,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:35:45,251 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_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a93b4c325da61bdb0bcf5f7bfce47877e5238073f7401e4883b579f193ca117 [2023-12-02 23:35:45,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:35:45,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:35:45,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:35:45,570 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:35:45,570 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:35:45,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c [2023-12-02 23:35:48,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:35:48,559 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:35:48,559 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c [2023-12-02 23:35:48,568 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/data/d3d87f5a7/c67cd783446d45fca7dffd540fb8c906/FLAGbb50557cf [2023-12-02 23:35:48,583 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/data/d3d87f5a7/c67cd783446d45fca7dffd540fb8c906 [2023-12-02 23:35:48,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:35:48,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:35:48,588 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:35:48,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:35:48,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:35:48,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589a297f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48, skipping insertion in model container [2023-12-02 23:35:48,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,618 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:35:48,742 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_3ee2985f-d9a5-4805-bb68-270b3c28c46a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c[1248,1261] [2023-12-02 23:35:48,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:35:48,796 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:35:48,806 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_3ee2985f-d9a5-4805-bb68-270b3c28c46a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.paper_v3.c[1248,1261] [2023-12-02 23:35:48,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:35:48,842 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:35:48,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48 WrapperNode [2023-12-02 23:35:48,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:35:48,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:35:48,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:35:48,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:35:48,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,884 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2023-12-02 23:35:48,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:35:48,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:35:48,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:35:48,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:35:48,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:35:48,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:35:48,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:35:48,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:35:48,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:35:48" (1/1) ... [2023-12-02 23:35:48,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:35:48,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:35:48,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:35:48,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:35:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:35:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:35:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:35:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:35:49,080 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:35:49,082 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:35:49,250 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:35:49,294 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:35:49,294 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:35:49,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:35:49 BoogieIcfgContainer [2023-12-02 23:35:49,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:35:49,297 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:35:49,297 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:35:49,307 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:35:49,307 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:35:49" (1/1) ... [2023-12-02 23:35:49,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:35:49,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:35:49,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 23:35:49,403 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 23:35:49,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 23:35:49,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:35:49,406 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:35:49,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:35:49,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:35:49,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 23:35:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:49,539 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:35:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:49,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 23:35:49,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:35:49,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:35:49,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 23:35:49,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:35:49,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 23:35:49,846 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 23:35:49,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:35:49,846 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:35:49,846 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:35:49,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:35:49,848 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:35:49,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 23:35:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:49,973 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:35:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:50,028 WARN L260 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-02 23:35:50,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:35:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:35:50,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 23:35:50,665 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:35:51,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:35:51,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2023-12-02 23:35:51,096 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2023-12-02 23:35:51,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:35:51,098 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:35:51,098 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:35:51,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:35:51,099 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:35:51,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:35:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:51,252 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:35:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:51,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 83 conjunts are in the unsatisfiable core [2023-12-02 23:35:51,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:35:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:35:51,984 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:35:51,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 23:35:52,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:35:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 16 states and 23 transitions. [2023-12-02 23:35:52,556 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2023-12-02 23:35:52,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 23:35:52,557 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:35:52,557 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:35:52,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:35:52,558 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:35:52,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 23:35:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:52,712 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:35:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:52,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 113 conjunts are in the unsatisfiable core [2023-12-02 23:35:52,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:35:53,474 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:35:53,477 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:35:53,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 23:35:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:35:54,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2023-12-02 23:35:54,065 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2023-12-02 23:35:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:35:54,065 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:35:54,065 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:35:54,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:35:54,066 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:35:54,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 23:35:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:54,232 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:35:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:54,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 143 conjunts are in the unsatisfiable core [2023-12-02 23:35:54,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:35:55,042 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:35:55,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 23:35:55,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:35:55,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2023-12-02 23:35:55,778 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2023-12-02 23:35:55,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 23:35:55,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:35:55,779 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:35:55,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:35:55,781 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:35:55,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 23:35:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:55,987 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:35:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:56,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 173 conjunts are in the unsatisfiable core [2023-12-02 23:35:56,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:35:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:35:56,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 23:35:57,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:35:57,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2023-12-02 23:35:57,640 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2023-12-02 23:35:57,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 23:35:57,641 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:35:57,641 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:35:57,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:35:57,642 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:35:57,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 23:35:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:57,854 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:35:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:35:57,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 203 conjunts are in the unsatisfiable core [2023-12-02 23:35:57,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:35:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:35:58,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 23:35:59,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:35:59,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2023-12-02 23:35:59,805 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2023-12-02 23:35:59,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 23:35:59,806 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:35:59,806 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:35:59,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:35:59,807 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:35:59,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 23:36:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:00,053 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:00,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 233 conjunts are in the unsatisfiable core [2023-12-02 23:36:00,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:01,128 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:01,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 23:36:02,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:02,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2023-12-02 23:36:02,291 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2023-12-02 23:36:02,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 23:36:02,292 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:02,292 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:02,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:02,293 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:02,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 23:36:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:02,595 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:02,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 263 conjunts are in the unsatisfiable core [2023-12-02 23:36:02,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:03,729 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:03,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-02 23:36:05,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:05,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 40 states and 59 transitions. [2023-12-02 23:36:05,090 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 59 transitions. [2023-12-02 23:36:05,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 23:36:05,091 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:05,091 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:05,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:05,092 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:05,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 23:36:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:05,399 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:05,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 293 conjunts are in the unsatisfiable core [2023-12-02 23:36:05,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:06,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 23:36:08,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:08,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 44 states and 65 transitions. [2023-12-02 23:36:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions. [2023-12-02 23:36:08,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 23:36:08,328 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:08,328 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:08,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:08,329 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:08,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 23:36:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:08,665 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:08,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 323 conjunts are in the unsatisfiable core [2023-12-02 23:36:08,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:10,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 23:36:11,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:11,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 48 states and 71 transitions. [2023-12-02 23:36:11,836 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 71 transitions. [2023-12-02 23:36:11,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 23:36:11,837 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:11,838 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:11,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:11,839 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:11,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 23:36:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:12,215 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:12,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 353 conjunts are in the unsatisfiable core [2023-12-02 23:36:12,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:13,768 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:13,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 23:36:15,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:15,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 52 states and 77 transitions. [2023-12-02 23:36:15,709 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2023-12-02 23:36:15,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 23:36:15,710 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:15,710 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:15,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:15,711 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:15,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 23:36:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:16,128 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:16,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 383 conjunts are in the unsatisfiable core [2023-12-02 23:36:16,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:17,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 23:36:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:20,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 56 states and 83 transitions. [2023-12-02 23:36:20,038 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 83 transitions. [2023-12-02 23:36:20,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 23:36:20,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:20,039 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:20,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:20,040 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:20,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 23:36:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:20,450 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:20,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 413 conjunts are in the unsatisfiable core [2023-12-02 23:36:20,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:22,194 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:22,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 23:36:24,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:24,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 60 states and 89 transitions. [2023-12-02 23:36:24,635 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions. [2023-12-02 23:36:24,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 23:36:24,636 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:24,636 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:24,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:24,637 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:24,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 23:36:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:25,102 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:25,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 443 conjunts are in the unsatisfiable core [2023-12-02 23:36:25,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:26,852 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:26,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 23:36:29,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:29,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 64 states and 95 transitions. [2023-12-02 23:36:29,711 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 95 transitions. [2023-12-02 23:36:29,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 23:36:29,713 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:29,713 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:29,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:29,714 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:29,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 23:36:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:30,296 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:30,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 473 conjunts are in the unsatisfiable core [2023-12-02 23:36:30,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:32,560 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:32,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 23:36:36,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 68 states and 101 transitions. [2023-12-02 23:36:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-12-02 23:36:36,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 23:36:36,463 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:36,463 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:36,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:36,465 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:36,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 23:36:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:37,145 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:37,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 503 conjunts are in the unsatisfiable core [2023-12-02 23:36:37,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:39,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 23:36:43,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:43,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 72 states and 107 transitions. [2023-12-02 23:36:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 107 transitions. [2023-12-02 23:36:43,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 23:36:43,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:43,508 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:43,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:43,509 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:43,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 23:36:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:44,068 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:44,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 533 conjunts are in the unsatisfiable core [2023-12-02 23:36:44,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:46,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 23:36:49,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:49,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 76 states and 113 transitions. [2023-12-02 23:36:49,538 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 113 transitions. [2023-12-02 23:36:49,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 23:36:49,539 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:49,539 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:49,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:49,540 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:49,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 23:36:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:50,145 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:50,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 563 conjunts are in the unsatisfiable core [2023-12-02 23:36:50,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:52,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 23:36:56,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:36:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 80 states and 119 transitions. [2023-12-02 23:36:56,021 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 119 transitions. [2023-12-02 23:36:56,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 23:36:56,021 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:36:56,022 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:36:56,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:36:56,023 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:36:56,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 23:36:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:56,651 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:36:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:36:56,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 593 conjunts are in the unsatisfiable core [2023-12-02 23:36:56,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:36:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:36:59,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 23:37:03,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:03,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 84 states and 125 transitions. [2023-12-02 23:37:03,046 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 125 transitions. [2023-12-02 23:37:03,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 23:37:03,047 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:03,047 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:37:03,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:37:03,048 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:37:03,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 23:37:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:03,705 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:37:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:03,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 623 conjunts are in the unsatisfiable core [2023-12-02 23:37:03,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:06,329 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:37:06,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-12-02 23:37:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 88 states and 131 transitions. [2023-12-02 23:37:10,399 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2023-12-02 23:37:10,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 23:37:10,399 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:10,399 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:37:10,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:37:10,400 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:37:10,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 23:37:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:11,086 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:37:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:11,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 653 conjunts are in the unsatisfiable core [2023-12-02 23:37:11,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:13,875 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:37:13,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-12-02 23:37:18,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:18,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 92 states and 137 transitions. [2023-12-02 23:37:18,387 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions. [2023-12-02 23:37:18,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 23:37:18,388 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:18,388 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:37:18,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:37:18,389 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:37:18,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 23:37:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:19,163 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:37:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:19,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 683 conjunts are in the unsatisfiable core [2023-12-02 23:37:19,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:37:22,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 23:37:28,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:28,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 96 states and 143 transitions. [2023-12-02 23:37:28,619 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2023-12-02 23:37:28,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 23:37:28,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:28,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:37:28,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:37:28,621 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:37:28,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 23:37:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:29,608 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:37:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:29,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 1511 conjuncts, 713 conjunts are in the unsatisfiable core [2023-12-02 23:37:29,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:33,107 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:37:33,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-02 23:37:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:39,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 100 states and 149 transitions. [2023-12-02 23:37:39,413 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 149 transitions. [2023-12-02 23:37:39,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 23:37:39,413 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:39,414 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:37:39,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:37:39,415 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:37:39,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 23:37:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:40,294 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:37:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:40,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 1575 conjuncts, 743 conjunts are in the unsatisfiable core [2023-12-02 23:37:40,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:37:43,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-02 23:37:49,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:37:49,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 104 states and 155 transitions. [2023-12-02 23:37:49,933 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 155 transitions. [2023-12-02 23:37:49,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 23:37:49,933 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:37:49,934 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:37:49,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:37:49,934 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:37:49,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 23:37:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:50,899 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:37:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:37:51,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 1639 conjuncts, 773 conjunts are in the unsatisfiable core [2023-12-02 23:37:51,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:37:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:37:54,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 23:38:01,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 108 states and 161 transitions. [2023-12-02 23:38:01,127 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 161 transitions. [2023-12-02 23:38:01,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 23:38:01,128 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:01,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:38:01,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:38:01,129 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:38:01,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 23:38:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:02,077 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:38:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:02,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 803 conjunts are in the unsatisfiable core [2023-12-02 23:38:02,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:38:05,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 0 proven. 1027 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:38:05,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 23:38:12,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:12,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 112 states and 167 transitions. [2023-12-02 23:38:12,815 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 167 transitions. [2023-12-02 23:38:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 23:38:12,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:12,815 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:38:12,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:38:12,816 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:38:12,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 23:38:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:13,838 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:38:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:14,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 833 conjunts are in the unsatisfiable core [2023-12-02 23:38:14,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:38:17,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:38:17,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 23:38:25,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:25,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 116 states and 173 transitions. [2023-12-02 23:38:25,018 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 173 transitions. [2023-12-02 23:38:25,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 23:38:25,018 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:25,019 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:38:25,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:38:25,020 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:38:25,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 23:38:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:26,086 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:38:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:26,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 1831 conjuncts, 863 conjunts are in the unsatisfiable core [2023-12-02 23:38:26,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:38:30,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:38:30,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 23:38:37,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 120 states and 179 transitions. [2023-12-02 23:38:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 179 transitions. [2023-12-02 23:38:37,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 23:38:37,740 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:37,740 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:38:37,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:38:37,741 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:38:37,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 23:38:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:38,765 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:38:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:39,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 1895 conjuncts, 893 conjunts are in the unsatisfiable core [2023-12-02 23:38:39,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:38:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1276 backedges. 0 proven. 1276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:38:43,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 23:38:51,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:51,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 124 states and 185 transitions. [2023-12-02 23:38:51,198 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 185 transitions. [2023-12-02 23:38:51,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 23:38:51,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:51,198 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:38:51,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:38:51,199 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:38:51,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 23:38:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:52,345 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:38:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:52,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 1959 conjuncts, 923 conjunts are in the unsatisfiable core [2023-12-02 23:38:52,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:38:56,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 0 proven. 1365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:38:56,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 23:39:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:39:05,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 128 states and 191 transitions. [2023-12-02 23:39:05,466 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 191 transitions. [2023-12-02 23:39:05,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-02 23:39:05,466 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:39:05,466 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:39:05,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:39:05,467 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:39:05,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 23:39:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:06,710 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:39:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:07,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 2023 conjuncts, 953 conjunts are in the unsatisfiable core [2023-12-02 23:39:07,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:39:11,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:39:11,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-02 23:39:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:39:20,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 132 states and 197 transitions. [2023-12-02 23:39:20,466 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 197 transitions. [2023-12-02 23:39:20,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 23:39:20,467 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:39:20,467 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:39:20,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:39:20,468 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:39:20,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 23:39:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:21,724 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:39:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:22,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 2087 conjuncts, 983 conjunts are in the unsatisfiable core [2023-12-02 23:39:22,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:39:26,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1552 backedges. 0 proven. 1552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:39:26,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2023-12-02 23:39:36,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:39:36,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 136 states and 203 transitions. [2023-12-02 23:39:36,487 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 203 transitions. [2023-12-02 23:39:36,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 23:39:36,488 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:39:36,488 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:39:36,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:39:36,489 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:39:36,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 23:39:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:37,793 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:39:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:38,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 2151 conjuncts, 1013 conjunts are in the unsatisfiable core [2023-12-02 23:39:38,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:39:42,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 0 proven. 1650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:39:42,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-02 23:39:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:39:52,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 140 states and 209 transitions. [2023-12-02 23:39:52,926 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 209 transitions. [2023-12-02 23:39:52,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 23:39:52,926 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:39:52,926 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:39:52,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:39:52,927 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:39:52,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 23:39:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:54,249 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:39:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:39:54,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 2215 conjuncts, 1043 conjunts are in the unsatisfiable core [2023-12-02 23:39:54,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:39:59,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1751 backedges. 0 proven. 1751 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:39:59,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 23:40:10,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:10,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 144 states and 215 transitions. [2023-12-02 23:40:10,559 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 215 transitions. [2023-12-02 23:40:10,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-02 23:40:10,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:10,560 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:40:10,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:40:10,561 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:40:10,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 23:40:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:11,958 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:40:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:12,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 2279 conjuncts, 1073 conjunts are in the unsatisfiable core [2023-12-02 23:40:12,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:40:17,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 1855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:40:17,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 23:40:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:28,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 148 states and 221 transitions. [2023-12-02 23:40:28,811 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 221 transitions. [2023-12-02 23:40:28,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-02 23:40:28,812 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:28,812 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:40:28,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:40:28,813 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:40:28,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 23:40:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:30,191 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:40:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:30,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 2343 conjuncts, 1103 conjunts are in the unsatisfiable core [2023-12-02 23:40:30,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:40:35,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1962 backedges. 0 proven. 1962 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:40:35,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 23:40:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:40:47,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 152 states and 227 transitions. [2023-12-02 23:40:47,310 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 227 transitions. [2023-12-02 23:40:47,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-02 23:40:47,311 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:40:47,311 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:40:47,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:40:47,312 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:40:47,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 23:40:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:48,603 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:40:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:40:49,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 2407 conjuncts, 1133 conjunts are in the unsatisfiable core [2023-12-02 23:40:49,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:40:53,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2072 backedges. 0 proven. 2072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:40:53,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-02 23:41:04,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:41:04,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 156 states and 233 transitions. [2023-12-02 23:41:04,966 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 233 transitions. [2023-12-02 23:41:04,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 23:41:04,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:41:04,966 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:41:04,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:41:04,967 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:41:04,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 23:41:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:06,326 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:41:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:06,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 2471 conjuncts, 1163 conjunts are in the unsatisfiable core [2023-12-02 23:41:06,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:41:11,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2185 backedges. 0 proven. 2185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:41:11,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 23:41:23,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:41:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 160 states and 239 transitions. [2023-12-02 23:41:23,715 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 239 transitions. [2023-12-02 23:41:23,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-02 23:41:23,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:41:23,715 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:41:23,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:41:23,716 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:41:23,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 23:41:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:25,071 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:41:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:25,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 2535 conjuncts, 1193 conjunts are in the unsatisfiable core [2023-12-02 23:41:25,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:41:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2301 backedges. 0 proven. 2301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:41:30,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 23:41:42,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:41:42,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 164 states and 245 transitions. [2023-12-02 23:41:42,585 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 245 transitions. [2023-12-02 23:41:42,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-02 23:41:42,586 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:41:42,586 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:41:42,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:41:42,587 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:41:42,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 23:41:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:43,988 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:41:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:41:44,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 2599 conjuncts, 1223 conjunts are in the unsatisfiable core [2023-12-02 23:41:44,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:41:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 0 proven. 2420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:41:49,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-02 23:42:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:42:01,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 168 states and 251 transitions. [2023-12-02 23:42:01,751 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 251 transitions. [2023-12-02 23:42:01,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-02 23:42:01,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:42:01,751 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:42:01,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:42:01,752 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:42:01,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 23:42:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:42:03,200 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:42:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:42:03,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 2663 conjuncts, 1253 conjunts are in the unsatisfiable core [2023-12-02 23:42:03,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:42:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2542 backedges. 0 proven. 2542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:42:08,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 23:42:22,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:42:22,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 172 states and 257 transitions. [2023-12-02 23:42:22,141 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 257 transitions. [2023-12-02 23:42:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-02 23:42:22,142 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:42:22,142 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:42:22,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:42:22,143 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:42:22,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 23:42:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:42:23,750 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:42:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:42:24,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 2727 conjuncts, 1283 conjunts are in the unsatisfiable core [2023-12-02 23:42:24,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:42:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 0 proven. 2667 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:42:29,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 23:42:43,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:42:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 176 states and 263 transitions. [2023-12-02 23:42:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 263 transitions. [2023-12-02 23:42:43,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 23:42:43,173 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:42:43,174 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:42:43,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:42:43,174 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:42:43,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 23:42:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:42:44,695 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:42:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:42:45,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 2791 conjuncts, 1313 conjunts are in the unsatisfiable core [2023-12-02 23:42:45,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:42:50,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2795 backedges. 0 proven. 2795 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:42:50,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-02 23:43:04,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:43:04,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 180 states and 269 transitions. [2023-12-02 23:43:04,921 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 269 transitions. [2023-12-02 23:43:04,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-02 23:43:04,922 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:43:04,922 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:43:04,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:43:04,922 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:43:04,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 23:43:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:43:06,496 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:43:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:43:07,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 2855 conjuncts, 1343 conjunts are in the unsatisfiable core [2023-12-02 23:43:07,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:43:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:43:13,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 23:43:30,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:43:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 184 states and 275 transitions. [2023-12-02 23:43:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 275 transitions. [2023-12-02 23:43:30,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-02 23:43:30,411 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:43:30,411 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:43:30,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:43:30,412 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:43:30,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 23:43:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:43:32,309 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:43:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:43:32,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 2919 conjuncts, 1373 conjunts are in the unsatisfiable core [2023-12-02 23:43:32,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:43:39,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3060 backedges. 0 proven. 3060 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:43:39,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 23:43:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:43:57,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 188 states and 281 transitions. [2023-12-02 23:43:57,337 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 281 transitions. [2023-12-02 23:43:57,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-02 23:43:57,337 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:43:57,337 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:43:57,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:43:57,338 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:43:57,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 23:43:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:43:59,233 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:43:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:43:59,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 2983 conjuncts, 1403 conjunts are in the unsatisfiable core [2023-12-02 23:43:59,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:44:06,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:44:06,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 23:44:24,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:44:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 192 states and 287 transitions. [2023-12-02 23:44:24,139 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 287 transitions. [2023-12-02 23:44:24,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-02 23:44:24,140 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:44:24,140 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:44:24,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:44:24,142 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:44:24,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 23:44:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:44:25,910 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:44:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:44:26,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 3047 conjuncts, 1433 conjunts are in the unsatisfiable core [2023-12-02 23:44:26,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:44:33,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3337 backedges. 0 proven. 3337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:44:33,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-02 23:44:51,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:44:51,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 196 states and 293 transitions. [2023-12-02 23:44:51,059 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 293 transitions. [2023-12-02 23:44:51,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-02 23:44:51,060 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:44:51,060 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:44:51,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:44:51,061 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:44:51,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 23:44:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:44:52,943 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:44:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:44:53,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 3111 conjuncts, 1463 conjunts are in the unsatisfiable core [2023-12-02 23:44:53,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:45:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3480 backedges. 0 proven. 3480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:45:00,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-02 23:45:19,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:45:19,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 200 states and 299 transitions. [2023-12-02 23:45:19,420 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 299 transitions. [2023-12-02 23:45:19,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-02 23:45:19,420 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:45:19,420 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:45:19,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:45:19,421 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:45:19,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 23:45:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:45:21,372 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:45:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:45:22,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 3175 conjuncts, 1493 conjunts are in the unsatisfiable core [2023-12-02 23:45:22,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:45:29,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3626 backedges. 0 proven. 3626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:45:29,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 23:45:49,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:45:49,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 204 states and 305 transitions. [2023-12-02 23:45:49,057 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 305 transitions. [2023-12-02 23:45:49,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-02 23:45:49,058 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:45:49,058 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:45:49,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:45:49,059 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:45:49,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 23:45:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:45:50,989 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:45:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:45:51,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 3239 conjuncts, 1523 conjunts are in the unsatisfiable core [2023-12-02 23:45:51,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:45:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3775 backedges. 0 proven. 3775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:45:59,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-02 23:46:20,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:46:20,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 208 states and 311 transitions. [2023-12-02 23:46:20,122 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 311 transitions. [2023-12-02 23:46:20,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-02 23:46:20,123 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:46:20,123 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:46:20,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:46:20,124 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:46:20,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 23:46:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:46:22,152 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:46:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:46:22,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 3303 conjuncts, 1553 conjunts are in the unsatisfiable core [2023-12-02 23:46:22,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:46:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3927 backedges. 0 proven. 3927 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:46:30,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-02 23:46:52,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:46:52,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 212 states and 317 transitions. [2023-12-02 23:46:52,668 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 317 transitions. [2023-12-02 23:46:52,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-02 23:46:52,669 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:46:52,670 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:46:52,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:46:52,670 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:46:52,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-02 23:46:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:46:54,832 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:46:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:46:55,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 3367 conjuncts, 1583 conjunts are in the unsatisfiable core [2023-12-02 23:46:55,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:47:03,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4082 backedges. 0 proven. 4082 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:47:03,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2023-12-02 23:47:26,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 216 states and 323 transitions. [2023-12-02 23:47:26,301 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 323 transitions. [2023-12-02 23:47:26,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-02 23:47:26,301 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:26,302 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:47:26,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:47:26,302 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:47:26,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-02 23:47:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:28,448 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:47:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:29,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 3431 conjuncts, 1613 conjunts are in the unsatisfiable core [2023-12-02 23:47:29,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:47:37,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4240 backedges. 0 proven. 4240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:47:37,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-02 23:48:00,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:48:00,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 220 states and 329 transitions. [2023-12-02 23:48:00,208 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 329 transitions. [2023-12-02 23:48:00,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-02 23:48:00,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:48:00,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:48:00,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:48:00,210 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:48:00,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 23:48:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:02,491 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:48:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:03,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 3495 conjuncts, 1643 conjunts are in the unsatisfiable core [2023-12-02 23:48:03,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:48:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4401 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:48:11,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-02 23:48:35,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:48:35,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 224 states and 335 transitions. [2023-12-02 23:48:35,379 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 335 transitions. [2023-12-02 23:48:35,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-02 23:48:35,380 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:48:35,380 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:48:35,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:48:35,381 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:48:35,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-02 23:48:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:37,594 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:48:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:38,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 3559 conjuncts, 1673 conjunts are in the unsatisfiable core [2023-12-02 23:48:38,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:48:47,003 INFO L134 CoverageAnalysis]: Checked inductivity of 4565 backedges. 0 proven. 4565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:48:47,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-02 23:49:11,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:49:11,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 228 states and 341 transitions. [2023-12-02 23:49:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 341 transitions. [2023-12-02 23:49:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-02 23:49:11,166 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:49:11,166 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:49:11,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:49:11,168 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:49:11,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-02 23:49:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:49:13,484 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:49:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:49:14,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 3623 conjuncts, 1703 conjunts are in the unsatisfiable core [2023-12-02 23:49:14,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:49:23,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4732 backedges. 0 proven. 4732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:49:23,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-02 23:49:48,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:49:48,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 232 states and 347 transitions. [2023-12-02 23:49:48,925 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 347 transitions. [2023-12-02 23:49:48,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-02 23:49:48,926 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:49:48,926 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:49:48,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:49:48,927 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:49:48,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 23:49:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:49:51,524 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:49:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:49:52,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 3687 conjuncts, 1733 conjunts are in the unsatisfiable core [2023-12-02 23:49:52,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:50:02,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4902 backedges. 0 proven. 4902 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:50:02,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee2985f-d9a5-4805-bb68-270b3c28c46a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0