./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/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_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:33:39,019 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:33:39,087 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 22:33:39,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:33:39,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:33:39,113 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:33:39,114 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:33:39,115 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:33:39,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:33:39,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:33:39,117 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:33:39,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:33:39,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:33:39,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:33:39,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:33:39,119 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 22:33:39,120 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 22:33:39,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:33:39,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:33:39,121 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:33:39,122 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:33:39,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:33:39,123 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:33:39,123 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:33:39,123 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:33:39,124 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:33:39,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:33:39,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:33:39,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:33:39,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:33:39,126 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:33:39,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:33:39,126 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_8d5b4502-6645-4f17-9495-30b6d4bda35b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2023-12-02 22:33:39,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:33:39,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:33:39,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:33:39,380 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:33:39,381 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:33:39,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2023-12-02 22:33:42,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:33:42,469 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:33:42,470 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2023-12-02 22:33:42,491 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/data/b9b43958f/5d53164004be46fb8475f6d862d6b457/FLAG965483288 [2023-12-02 22:33:42,504 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/data/b9b43958f/5d53164004be46fb8475f6d862d6b457 [2023-12-02 22:33:42,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:33:42,508 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:33:42,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:33:42,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:33:42,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:33:42,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:33:42" (1/1) ... [2023-12-02 22:33:42,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4414c1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:42, skipping insertion in model container [2023-12-02 22:33:42,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:33:42" (1/1) ... [2023-12-02 22:33:42,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:33:43,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:33:43,162 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:33:43,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:33:43,326 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:33:43,332 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:33:43,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43 WrapperNode [2023-12-02 22:33:43,333 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:33:43,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:33:43,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:33:43,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:33:43,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43" (1/1) ... [2023-12-02 22:33:43,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43" (1/1) ... [2023-12-02 22:33:43,445 INFO L138 Inliner]: procedures = 282, calls = 298, calls flagged for inlining = 24, calls inlined = 36, statements flattened = 1528 [2023-12-02 22:33:43,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:33:43,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:33:43,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:33:43,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:33:43,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43" (1/1) ... [2023-12-02 22:33:43,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43" (1/1) ... [2023-12-02 22:33:43,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43" (1/1) ... [2023-12-02 22:33:43,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43" (1/1) ... [2023-12-02 22:33:43,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43" (1/1) ... [2023-12-02 22:33:43,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43" (1/1) ... [2023-12-02 22:33:43,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43" (1/1) ... [2023-12-02 22:33:43,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43" (1/1) ... [2023-12-02 22:33:43,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:33:43,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:33:43,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:33:43,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:33:43,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:33:43" (1/1) ... [2023-12-02 22:33:43,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:33:43,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:33:43,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:33:43,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:33:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 22:33:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 22:33:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 22:33:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 22:33:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 22:33:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 22:33:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 22:33:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:33:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 22:33:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:33:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:33:43,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:33:43,901 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:33:43,903 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:33:45,270 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:33:46,678 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:33:46,678 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-12-02 22:33:46,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:33:46 BoogieIcfgContainer [2023-12-02 22:33:46,680 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:33:46,681 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:33:46,681 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:33:46,692 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:33:46,692 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:33:46" (1/1) ... [2023-12-02 22:33:46,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:33:46,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:46,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 182 states and 288 transitions. [2023-12-02 22:33:46,764 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2023-12-02 22:33:46,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:33:46,767 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:46,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:33:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:46,938 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 22:33:46,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:46,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 181 states and 283 transitions. [2023-12-02 22:33:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 283 transitions. [2023-12-02 22:33:46,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:33:46,964 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:46,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:33:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:47,123 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 22:33:47,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:47,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 183 states and 286 transitions. [2023-12-02 22:33:47,166 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 286 transitions. [2023-12-02 22:33:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 22:33:47,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:47,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:33:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:47,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:33:47,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:47,310 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 22:33:47,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 182 states and 275 transitions. [2023-12-02 22:33:47,318 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 275 transitions. [2023-12-02 22:33:47,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 22:33:47,319 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:47,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:33:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:47,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:33:47,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:47,442 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 22:33:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:47,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 182 states and 273 transitions. [2023-12-02 22:33:47,448 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 273 transitions. [2023-12-02 22:33:47,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 22:33:47,448 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:47,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:33:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:47,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:33:47,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:47,583 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 22:33:57,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:33:57,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:57,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 182 states and 271 transitions. [2023-12-02 22:33:57,654 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 271 transitions. [2023-12-02 22:33:57,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 22:33:57,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:57,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:33:58,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:58,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 22:33:58,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:58,659 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 22:33:58,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:33:58,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 179 states and 268 transitions. [2023-12-02 22:33:58,762 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 268 transitions. [2023-12-02 22:33:58,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:33:58,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:33:58,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:33:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:33:58,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 22:33:58,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:33:59,088 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 22:34:09,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:34:19,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:34:29,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:34:39,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:34:39,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:39,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 197 states and 290 transitions. [2023-12-02 22:34:39,807 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 290 transitions. [2023-12-02 22:34:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:34:39,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:39,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:34:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:40,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:34:40,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:40,011 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 22:34:40,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 196 states and 277 transitions. [2023-12-02 22:34:40,037 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 277 transitions. [2023-12-02 22:34:40,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 22:34:40,037 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:40,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:34:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:40,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 22:34:40,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:40,290 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 22:34:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 196 states and 276 transitions. [2023-12-02 22:34:40,415 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 276 transitions. [2023-12-02 22:34:40,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 22:34:40,416 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:40,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:34:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:40,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:34:40,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:40,630 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 22:34:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:40,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 190 states and 267 transitions. [2023-12-02 22:34:40,641 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 267 transitions. [2023-12-02 22:34:40,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 22:34:40,642 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:40,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:34:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:40,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:34:40,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:40,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:34:50,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:34:50,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:34:50,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 190 states and 265 transitions. [2023-12-02 22:34:50,907 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 265 transitions. [2023-12-02 22:34:50,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 22:34:50,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:34:50,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:34:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:34:51,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:34:51,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:34:51,261 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 22:35:01,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:35:11,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:35:21,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:35:31,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:35:32,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:35:32,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 203 states and 281 transitions. [2023-12-02 22:35:32,032 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 281 transitions. [2023-12-02 22:35:32,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 22:35:32,033 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:35:32,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:35:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:35:32,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 22:35:32,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:35:32,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:35:42,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:35:52,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:36:02,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:36:12,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:36:12,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:12,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 206 states and 283 transitions. [2023-12-02 22:36:12,477 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 283 transitions. [2023-12-02 22:36:12,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 22:36:12,477 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:12,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:12,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:36:12,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:12,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:36:22,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:36:32,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:36:42,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:36:53,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:36:53,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:53,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 209 states and 285 transitions. [2023-12-02 22:36:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 285 transitions. [2023-12-02 22:36:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 22:36:53,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:53,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:53,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:36:53,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:53,390 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 22:36:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:53,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 221 states and 301 transitions. [2023-12-02 22:36:53,828 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 301 transitions. [2023-12-02 22:36:53,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 22:36:53,829 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:53,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:54,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:36:54,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:54,169 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 22:36:54,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:36:54,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 220 states and 296 transitions. [2023-12-02 22:36:54,189 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 296 transitions. [2023-12-02 22:36:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 22:36:54,190 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:36:54,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:36:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:36:54,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:36:54,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:36:54,573 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 22:37:05,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:37:15,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:37:25,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:37:35,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:37:35,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:35,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 235 states and 314 transitions. [2023-12-02 22:37:35,524 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 314 transitions. [2023-12-02 22:37:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 22:37:35,525 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:35,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:37:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:36,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 22:37:36,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:36,122 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 22:37:36,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:36,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 236 states and 315 transitions. [2023-12-02 22:37:36,339 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 315 transitions. [2023-12-02 22:37:36,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 22:37:36,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:36,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:37:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:38,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 22:37:38,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:37:39,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:39,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 237 states and 316 transitions. [2023-12-02 22:37:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 316 transitions. [2023-12-02 22:37:39,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 22:37:39,433 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:39,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:37:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:37:40,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 22:37:40,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:37:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:37:40,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:37:40,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 238 states and 317 transitions. [2023-12-02 22:37:40,965 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 317 transitions. [2023-12-02 22:37:40,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 22:37:40,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:37:40,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:37:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 22:37:51,315 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 22:37:51,318 INFO L158 Benchmark]: Toolchain (without parser) took 248809.76ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 112.7MB in the beginning and 142.1MB in the end (delta: -29.3MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. [2023-12-02 22:37:51,318 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory was 62.2MB in the beginning and 62.0MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:37:51,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 823.72ms. Allocated memory is still 146.8MB. Free memory was 112.3MB in the beginning and 69.1MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-12-02 22:37:51,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.65ms. Allocated memory is still 146.8MB. Free memory was 69.1MB in the beginning and 59.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 22:37:51,320 INFO L158 Benchmark]: Boogie Preprocessor took 151.68ms. Allocated memory is still 146.8MB. Free memory was 58.9MB in the beginning and 110.5MB in the end (delta: -51.7MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-12-02 22:37:51,320 INFO L158 Benchmark]: RCFGBuilder took 3082.16ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 110.5MB in the beginning and 208.5MB in the end (delta: -98.0MB). Peak memory consumption was 118.7MB. Max. memory is 16.1GB. [2023-12-02 22:37:51,321 INFO L158 Benchmark]: CodeCheck took 244635.62ms. Allocated memory is still 262.1MB. Free memory was 208.5MB in the beginning and 142.1MB in the end (delta: 66.4MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2023-12-02 22:37:51,323 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory was 62.2MB in the beginning and 62.0MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 823.72ms. Allocated memory is still 146.8MB. Free memory was 112.3MB in the beginning and 69.1MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.65ms. Allocated memory is still 146.8MB. Free memory was 69.1MB in the beginning and 59.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 151.68ms. Allocated memory is still 146.8MB. Free memory was 58.9MB in the beginning and 110.5MB in the end (delta: -51.7MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * RCFGBuilder took 3082.16ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 110.5MB in the beginning and 208.5MB in the end (delta: -98.0MB). Peak memory consumption was 118.7MB. Max. memory is 16.1GB. * CodeCheck took 244635.62ms. Allocated memory is still 262.1MB. Free memory was 208.5MB in the beginning and 142.1MB in the end (delta: 66.4MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 22:37:51,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/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_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/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_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:37:53,165 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:37:53,244 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 22:37:53,277 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:37:53,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:37:53,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:37:53,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:37:53,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:37:53,281 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:37:53,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:37:53,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:37:53,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:37:53,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:37:53,284 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 22:37:53,284 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 22:37:53,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:37:53,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:37:53,286 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 22:37:53,287 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 22:37:53,287 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 22:37:53,288 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:37:53,289 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:37:53,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:37:53,290 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:37:53,290 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:37:53,291 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:37:53,291 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:37:53,291 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:37:53,292 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 22:37:53,292 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:37:53,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:37:53,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:37:53,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:37:53,294 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 22:37:53,294 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:37:53,294 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 22:37:53,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 22:37:53,295 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_8d5b4502-6645-4f17-9495-30b6d4bda35b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2023-12-02 22:37:53,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:37:53,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:37:53,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:37:53,627 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:37:53,628 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:37:53,629 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2023-12-02 22:37:56,502 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:37:56,787 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:37:56,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2023-12-02 22:37:56,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/data/12043fe54/4cd32b6f16e74cb49cc62a3ba6a8c51d/FLAG1a3dd4154 [2023-12-02 22:37:56,835 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/data/12043fe54/4cd32b6f16e74cb49cc62a3ba6a8c51d [2023-12-02 22:37:56,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:37:56,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:37:56,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:37:56,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:37:56,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:37:56,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:37:56" (1/1) ... [2023-12-02 22:37:56,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf2d3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:56, skipping insertion in model container [2023-12-02 22:37:56,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:37:56" (1/1) ... [2023-12-02 22:37:56,945 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:37:57,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:37:57,594 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 22:37:57,617 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:37:57,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:37:57,702 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:37:57,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:37:57,824 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:37:57,839 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:37:57,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57 WrapperNode [2023-12-02 22:37:57,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:37:57,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:37:57,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:37:57,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:37:57,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57" (1/1) ... [2023-12-02 22:37:57,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57" (1/1) ... [2023-12-02 22:37:57,945 INFO L138 Inliner]: procedures = 285, calls = 298, calls flagged for inlining = 24, calls inlined = 36, statements flattened = 1200 [2023-12-02 22:37:57,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:37:57,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:37:57,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:37:57,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:37:57,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57" (1/1) ... [2023-12-02 22:37:57,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57" (1/1) ... [2023-12-02 22:37:57,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57" (1/1) ... [2023-12-02 22:37:57,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57" (1/1) ... [2023-12-02 22:37:58,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57" (1/1) ... [2023-12-02 22:37:58,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57" (1/1) ... [2023-12-02 22:37:58,034 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57" (1/1) ... [2023-12-02 22:37:58,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57" (1/1) ... [2023-12-02 22:37:58,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:37:58,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:37:58,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:37:58,053 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:37:58,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:37:57" (1/1) ... [2023-12-02 22:37:58,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:37:58,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:37:58,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:37:58,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:37:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 22:37:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 22:37:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 22:37:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 22:37:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 22:37:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 22:37:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 22:37:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 22:37:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 22:37:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:37:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 22:37:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:37:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:37:58,324 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:37:58,326 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:38:12,123 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:38:12,575 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:38:12,575 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-12-02 22:38:12,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:38:12 BoogieIcfgContainer [2023-12-02 22:38:12,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:38:12,577 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:38:12,577 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:38:12,587 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:38:12,587 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:38:12" (1/1) ... [2023-12-02 22:38:12,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:38:12,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:12,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 182 states and 288 transitions. [2023-12-02 22:38:12,655 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2023-12-02 22:38:12,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:38:12,658 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:12,658 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:12,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:12,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:12,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 22:38:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:12,974 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:13,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:38:13,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:13,061 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 22:38:13,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 22:38:13,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:13,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 181 states and 283 transitions. [2023-12-02 22:38:13,112 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 283 transitions. [2023-12-02 22:38:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:38:13,113 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:13,113 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:13,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:13,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:13,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 22:38:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:13,418 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:13,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:38:13,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:13,605 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 22:38:13,609 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 22:38:13,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 22:38:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:13,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 188 states and 293 transitions. [2023-12-02 22:38:13,937 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 293 transitions. [2023-12-02 22:38:13,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:38:13,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:13,938 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:13,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:13,940 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:13,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 22:38:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:14,263 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:14,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:38:14,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:14,329 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 22:38:14,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 22:38:14,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:14,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 187 states and 288 transitions. [2023-12-02 22:38:14,341 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 288 transitions. [2023-12-02 22:38:14,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 22:38:14,342 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:14,342 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:14,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:14,344 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:14,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 22:38:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:14,651 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:14,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:38:14,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:14,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2023-12-02 22:38:14,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 22:38:14,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2023-12-02 22:38:14,770 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 22:38:14,771 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 22:38:14,772 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 22:38:14,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 39 [2023-12-02 22:38:14,962 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 22:38:14,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 22:38:14,969 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 22:38:15,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:15,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 188 states and 288 transitions. [2023-12-02 22:38:15,827 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 288 transitions. [2023-12-02 22:38:15,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 22:38:15,829 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:15,829 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:15,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:15,833 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:15,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 22:38:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:16,166 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:16,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:38:16,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:16,293 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 22:38:16,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 22:38:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:16,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 187 states and 277 transitions. [2023-12-02 22:38:16,315 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 277 transitions. [2023-12-02 22:38:16,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 22:38:16,315 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:16,316 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:16,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:16,317 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:16,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 22:38:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:16,646 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:16,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:38:16,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:16,779 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 22:38:16,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 22:38:16,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:16,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 187 states and 275 transitions. [2023-12-02 22:38:16,789 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 275 transitions. [2023-12-02 22:38:16,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 22:38:16,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:16,791 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:16,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:16,792 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:16,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 22:38:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:17,163 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:17,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:38:17,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:17,337 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 22:38:17,341 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 22:38:17,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 22:38:17,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:17,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 187 states and 273 transitions. [2023-12-02 22:38:17,376 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 273 transitions. [2023-12-02 22:38:17,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 22:38:17,377 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:17,377 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:17,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:17,378 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:17,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 22:38:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:17,924 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:18,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 22:38:18,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:18,313 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 22:38:18,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 22:38:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:20,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 203 states and 295 transitions. [2023-12-02 22:38:20,282 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 295 transitions. [2023-12-02 22:38:20,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 22:38:20,285 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:20,285 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:20,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:20,291 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:20,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 22:38:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:20,651 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:20,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:38:20,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:38:20,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 22:38:20,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:20,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 203 states and 293 transitions. [2023-12-02 22:38:20,839 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 293 transitions. [2023-12-02 22:38:20,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 22:38:20,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:20,840 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:20,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:20,841 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:20,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 22:38:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:21,244 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:21,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 22:38:21,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:21,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:38:21,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-12-02 22:38:21,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:21,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 206 states and 295 transitions. [2023-12-02 22:38:21,515 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 295 transitions. [2023-12-02 22:38:21,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:38:21,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:21,516 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:21,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:21,517 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:21,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 22:38:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:21,924 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:22,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:38:22,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:22,110 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 22:38:22,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 22:38:23,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:23,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 205 states and 282 transitions. [2023-12-02 22:38:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 282 transitions. [2023-12-02 22:38:23,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 22:38:23,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:23,070 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:23,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:23,071 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:23,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 22:38:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:23,536 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:23,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 22:38:23,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:23,924 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 22:38:23,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 22:38:31,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:38:37,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:38:43,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:38:52,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:38:52,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:52,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 209 states and 285 transitions. [2023-12-02 22:38:52,515 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 285 transitions. [2023-12-02 22:38:52,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 22:38:52,515 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:52,515 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:52,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:52,516 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:52,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 22:38:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:52,962 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:53,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 22:38:53,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:53,297 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 22:38:53,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 22:38:53,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:53,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 220 states and 297 transitions. [2023-12-02 22:38:53,813 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 297 transitions. [2023-12-02 22:38:53,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 22:38:53,813 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:53,814 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:53,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:53,815 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:53,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 22:38:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:54,373 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:54,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:38:54,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:54,604 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 22:38:54,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 22:38:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:54,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 214 states and 288 transitions. [2023-12-02 22:38:54,696 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 288 transitions. [2023-12-02 22:38:54,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 22:38:54,697 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:54,697 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:54,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:54,698 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:54,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 22:38:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:55,219 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:55,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 22:38:55,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:55,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:38:55,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 22:38:55,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 217 states and 290 transitions. [2023-12-02 22:38:55,653 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 290 transitions. [2023-12-02 22:38:55,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 22:38:55,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:55,654 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:55,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:55,655 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:55,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 22:38:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:56,296 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:56,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:38:56,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:56,715 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 22:38:56,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 22:38:56,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:38:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 218 states and 291 transitions. [2023-12-02 22:38:56,863 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 291 transitions. [2023-12-02 22:38:56,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 22:38:56,864 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:38:56,864 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:38:56,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:38:56,865 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:38:56,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 22:38:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:57,553 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:38:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:38:57,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:38:57,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:38:57,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:38:58,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 22:39:08,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:39:08,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:08,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 219 states and 292 transitions. [2023-12-02 22:39:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 292 transitions. [2023-12-02 22:39:08,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:39:08,494 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:08,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:08,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:08,495 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:08,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 22:39:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:09,229 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:09,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 22:39:09,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:09,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 22:39:09,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 22:39:14,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:14,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 232 states and 309 transitions. [2023-12-02 22:39:14,070 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 309 transitions. [2023-12-02 22:39:14,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 22:39:14,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:14,070 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:14,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:14,071 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:14,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 22:39:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:14,912 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:15,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:39:15,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:15,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 22:39:15,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-12-02 22:39:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:15,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 231 states and 304 transitions. [2023-12-02 22:39:15,526 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 304 transitions. [2023-12-02 22:39:15,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 22:39:15,527 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:15,527 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:15,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:15,528 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:15,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 22:39:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:16,741 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:17,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 22:39:17,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:39:17,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 22:39:17,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:17,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 232 states and 305 transitions. [2023-12-02 22:39:17,947 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 305 transitions. [2023-12-02 22:39:17,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 22:39:17,947 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:17,947 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:17,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:17,948 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:17,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 22:39:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:19,091 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:19,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 22:39:19,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 22:39:19,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 22:39:24,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:39:24,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:24,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 233 states and 306 transitions. [2023-12-02 22:39:24,760 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 306 transitions. [2023-12-02 22:39:24,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 22:39:24,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:24,761 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:24,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:24,762 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:24,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 22:39:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:26,029 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:26,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 22:39:26,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:26,565 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 22:39:26,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-02 22:39:34,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:39:34,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:34,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 234 states and 307 transitions. [2023-12-02 22:39:34,855 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 307 transitions. [2023-12-02 22:39:34,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 22:39:34,855 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:34,855 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:34,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:34,856 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:34,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 22:39:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:36,193 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:36,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 22:39:36,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:36,766 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 22:39:36,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 22:39:44,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:39:44,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:44,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 235 states and 308 transitions. [2023-12-02 22:39:44,581 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 308 transitions. [2023-12-02 22:39:44,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 22:39:44,581 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:44,581 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:44,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:44,582 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:44,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 22:39:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:45,968 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:46,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 22:39:46,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:46,628 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 22:39:46,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-02 22:39:47,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:47,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 236 states and 309 transitions. [2023-12-02 22:39:47,505 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 309 transitions. [2023-12-02 22:39:47,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-02 22:39:47,506 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:47,506 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:47,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:47,507 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:47,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 22:39:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:48,981 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:49,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 22:39:49,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:49,564 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 22:39:49,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-02 22:39:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:39:50,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 237 states and 310 transitions. [2023-12-02 22:39:50,468 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 310 transitions. [2023-12-02 22:39:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 22:39:50,468 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:39:50,468 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:39:50,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:39:50,469 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:39:50,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 22:39:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:52,011 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:39:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:39:52,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 22:39:52,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:39:52,673 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 22:39:52,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 22:40:03,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:40:03,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:03,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 238 states and 311 transitions. [2023-12-02 22:40:03,713 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 311 transitions. [2023-12-02 22:40:03,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 22:40:03,714 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:03,714 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:03,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:03,715 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:03,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 22:40:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:05,299 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:40:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:05,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 22:40:05,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:40:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 22:40:06,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 22:40:17,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:40:17,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:17,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 239 states and 312 transitions. [2023-12-02 22:40:17,177 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 312 transitions. [2023-12-02 22:40:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 22:40:17,177 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:17,177 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:17,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:17,178 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:17,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 22:40:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:18,661 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:40:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:19,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 22:40:19,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:40:19,370 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 22:40:19,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 22:40:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:20,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 240 states and 313 transitions. [2023-12-02 22:40:20,442 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 313 transitions. [2023-12-02 22:40:20,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 22:40:20,442 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:20,442 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:20,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:20,444 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:20,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 22:40:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:22,066 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:40:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:22,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 22:40:22,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:40:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 22:40:22,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 22:40:24,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:24,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 241 states and 314 transitions. [2023-12-02 22:40:24,004 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 314 transitions. [2023-12-02 22:40:24,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 22:40:24,004 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:24,004 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:24,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:24,005 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:24,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 22:40:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:25,727 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:40:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:26,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 22:40:26,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:40:26,540 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 22:40:26,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 22:40:37,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:40:37,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:37,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 242 states and 315 transitions. [2023-12-02 22:40:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 315 transitions. [2023-12-02 22:40:37,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 22:40:37,819 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:37,819 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:37,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:37,820 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:37,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 22:40:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:39,565 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:40:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:39,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 22:40:39,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:40:40,310 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 22:40:40,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 22:40:51,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:40:51,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:51,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 243 states and 316 transitions. [2023-12-02 22:40:51,622 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 316 transitions. [2023-12-02 22:40:51,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 22:40:51,622 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:51,622 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:51,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:51,623 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:51,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 22:40:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:53,365 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:40:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:53,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 22:40:53,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:40:54,119 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 22:40:54,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2023-12-02 22:40:55,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:55,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 244 states and 317 transitions. [2023-12-02 22:40:55,440 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 317 transitions. [2023-12-02 22:40:55,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 22:40:55,441 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:55,441 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:55,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:55,442 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:55,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 22:40:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:57,404 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:40:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:40:57,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 22:40:57,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:40:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 22:40:58,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2023-12-02 22:40:59,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:59,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 245 states and 318 transitions. [2023-12-02 22:40:59,672 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 318 transitions. [2023-12-02 22:40:59,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 22:40:59,672 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:59,672 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:59,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:59,673 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:59,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 22:41:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:01,624 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:41:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:02,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 22:41:02,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:41:02,477 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 22:41:02,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-02 22:41:14,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:41:14,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:41:14,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 246 states and 319 transitions. [2023-12-02 22:41:14,073 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2023-12-02 22:41:14,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 22:41:14,073 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:41:14,073 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:41:14,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:41:14,074 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:41:14,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 22:41:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:15,957 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:41:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:16,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 22:41:16,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:41:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 22:41:16,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 22:41:28,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:41:28,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:41:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 247 states and 320 transitions. [2023-12-02 22:41:28,270 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 320 transitions. [2023-12-02 22:41:28,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 22:41:28,270 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:41:28,270 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:41:28,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:41:28,271 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:41:28,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 22:41:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:30,370 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:41:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:30,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 22:41:30,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:41:31,241 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 22:41:31,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 22:41:32,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:41:32,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 248 states and 321 transitions. [2023-12-02 22:41:32,803 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 321 transitions. [2023-12-02 22:41:32,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 22:41:32,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:41:32,804 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:41:32,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:41:32,804 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:41:32,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 22:41:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:34,829 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:41:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:35,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 22:41:35,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:41:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 22:41:35,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 22:41:37,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:41:37,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 249 states and 322 transitions. [2023-12-02 22:41:37,365 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 322 transitions. [2023-12-02 22:41:37,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 22:41:37,365 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:41:37,366 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:41:37,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:41:37,366 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:41:37,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 22:41:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:39,551 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:41:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:40,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 22:41:40,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:41:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 22:41:40,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2023-12-02 22:41:52,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:41:52,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:41:52,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 250 states and 323 transitions. [2023-12-02 22:41:52,340 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 323 transitions. [2023-12-02 22:41:52,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 22:41:52,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:41:52,340 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:41:52,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:41:52,341 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:41:52,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 22:41:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:54,650 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:41:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:41:55,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 22:41:55,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:41:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 22:41:55,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 22:42:07,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:42:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:42:07,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 251 states and 324 transitions. [2023-12-02 22:42:07,479 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 324 transitions. [2023-12-02 22:42:07,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 22:42:07,479 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:42:07,479 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:42:07,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:42:07,480 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:42:07,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 22:42:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:09,665 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:42:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:10,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 22:42:10,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:42:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 22:42:10,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 22:42:12,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:42:12,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 252 states and 325 transitions. [2023-12-02 22:42:12,432 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 325 transitions. [2023-12-02 22:42:12,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 22:42:12,432 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:42:12,432 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:42:12,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:42:12,433 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:42:12,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 22:42:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:14,843 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:42:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:15,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 22:42:15,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:42:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 22:42:15,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-02 22:42:17,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:42:17,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 253 states and 326 transitions. [2023-12-02 22:42:17,774 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 326 transitions. [2023-12-02 22:42:17,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 22:42:17,774 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:42:17,775 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:42:17,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:42:17,775 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:42:17,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 22:42:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:20,372 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:42:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:20,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 22:42:20,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:42:21,420 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 22:42:21,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 22:42:33,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:42:33,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:42:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 254 states and 327 transitions. [2023-12-02 22:42:33,498 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 327 transitions. [2023-12-02 22:42:33,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 22:42:33,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:42:33,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:42:33,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:42:33,500 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:42:33,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 22:42:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:35,940 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:42:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:36,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 22:42:36,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:42:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 22:42:37,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 22:42:48,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:42:48,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:42:48,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 255 states and 328 transitions. [2023-12-02 22:42:48,993 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 328 transitions. [2023-12-02 22:42:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 22:42:48,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:42:48,993 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:42:48,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:42:48,994 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:42:48,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 22:42:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:51,475 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:42:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:51,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 22:42:51,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:42:52,544 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 22:42:52,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-02 22:42:54,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:42:54,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 256 states and 329 transitions. [2023-12-02 22:42:54,754 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 329 transitions. [2023-12-02 22:42:54,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 22:42:54,755 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:42:54,755 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:42:54,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:42:54,756 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:42:54,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 22:42:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:57,528 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:42:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:42:58,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 22:42:58,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:42:58,573 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 22:42:58,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 22:43:00,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:43:00,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 257 states and 330 transitions. [2023-12-02 22:43:00,858 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 330 transitions. [2023-12-02 22:43:00,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 22:43:00,858 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:43:00,858 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:43:00,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:43:00,859 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:43:00,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 22:43:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:03,596 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:43:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:04,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 22:43:04,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:43:04,708 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 22:43:04,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 22:43:17,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:43:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:43:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 258 states and 331 transitions. [2023-12-02 22:43:17,189 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 331 transitions. [2023-12-02 22:43:17,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 22:43:17,189 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:43:17,190 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:43:17,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:43:17,190 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:43:17,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 22:43:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:19,913 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:43:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:20,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 22:43:20,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:43:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 22:43:21,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 22:43:33,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:43:33,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:43:33,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 259 states and 332 transitions. [2023-12-02 22:43:33,693 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 332 transitions. [2023-12-02 22:43:33,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 22:43:33,694 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:43:33,694 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:43:33,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:43:33,694 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:43:33,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 22:43:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:36,552 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:43:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:37,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 22:43:37,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:43:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 22:43:37,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-02 22:43:40,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:43:40,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 260 states and 333 transitions. [2023-12-02 22:43:40,284 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2023-12-02 22:43:40,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 22:43:40,285 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:43:40,285 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:43:40,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:43:40,286 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:43:40,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 22:43:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:42,930 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:43:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:43,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 22:43:43,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:43:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 22:43:44,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2023-12-02 22:43:46,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:43:46,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 261 states and 334 transitions. [2023-12-02 22:43:46,826 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 334 transitions. [2023-12-02 22:43:46,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 22:43:46,827 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:43:46,827 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:43:46,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:43:46,828 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:43:46,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 22:43:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:49,850 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:43:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:43:50,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 22:43:50,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:43:51,077 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 22:43:51,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 22:44:03,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:44:03,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:44:03,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 262 states and 335 transitions. [2023-12-02 22:44:03,835 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 335 transitions. [2023-12-02 22:44:03,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 22:44:03,836 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:44:03,836 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:44:03,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:44:03,837 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:44:03,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 22:44:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:44:07,189 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:44:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:44:07,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 22:44:07,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:44:08,395 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 22:44:08,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-02 22:44:20,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:44:20,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:44:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 263 states and 336 transitions. [2023-12-02 22:44:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 336 transitions. [2023-12-02 22:44:20,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 22:44:20,364 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:44:20,364 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:44:20,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:44:20,365 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:44:20,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 22:44:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:44:23,518 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:44:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:44:24,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 22:44:24,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:44:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 22:44:24,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-02 22:44:27,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:44:27,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 264 states and 337 transitions. [2023-12-02 22:44:27,633 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 337 transitions. [2023-12-02 22:44:27,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 22:44:27,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:44:27,633 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:44:27,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:44:27,634 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:44:27,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-02 22:44:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:44:31,257 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:44:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:44:31,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 22:44:31,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:44:32,579 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 22:44:32,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-02 22:44:35,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:44:35,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 265 states and 338 transitions. [2023-12-02 22:44:35,470 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 338 transitions. [2023-12-02 22:44:35,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 22:44:35,470 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:44:35,471 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:44:35,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:44:35,471 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:44:35,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-02 22:44:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:44:38,999 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:44:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:44:39,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 22:44:39,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:44:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 22:44:40,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-02 22:44:53,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:44:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:44:53,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 266 states and 339 transitions. [2023-12-02 22:44:53,495 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 339 transitions. [2023-12-02 22:44:53,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 22:44:53,495 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:44:53,495 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:44:53,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:44:53,496 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:44:53,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 22:44:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:44:56,941 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:44:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:44:57,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 22:44:57,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:44:58,335 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 22:44:58,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-02 22:45:11,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:45:11,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:45:11,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 267 states and 340 transitions. [2023-12-02 22:45:11,738 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 340 transitions. [2023-12-02 22:45:11,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 22:45:11,738 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:45:11,738 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:45:11,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:45:11,739 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:45:11,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-02 22:45:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:45:14,950 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:45:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:45:15,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 22:45:15,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:45:16,315 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 22:45:16,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Forceful destruction successful, exit code 0 [2023-12-02 22:45:19,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:45:19,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 268 states and 341 transitions. [2023-12-02 22:45:19,612 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 341 transitions. [2023-12-02 22:45:19,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 22:45:19,612 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:45:19,612 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:45:19,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:45:19,613 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:45:19,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-02 22:45:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:45:23,335 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:45:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:45:23,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 22:45:23,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:45:24,707 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 22:45:24,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-02 22:45:28,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:45:28,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 269 states and 342 transitions. [2023-12-02 22:45:28,158 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 342 transitions. [2023-12-02 22:45:28,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 22:45:28,158 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:45:28,158 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:45:28,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:45:28,159 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:45:28,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 22:45:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:45:31,719 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:45:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:45:32,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 22:45:32,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:45:33,135 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 22:45:33,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-02 22:45:46,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:45:46,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:45:46,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 270 states and 343 transitions. [2023-12-02 22:45:46,343 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 343 transitions. [2023-12-02 22:45:46,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 22:45:46,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:45:46,344 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:45:46,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:45:46,345 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:45:46,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-02 22:45:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:45:50,116 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:45:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:45:50,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 22:45:50,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:45:51,572 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 22:45:51,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-02 22:46:04,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:46:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:46:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 271 states and 344 transitions. [2023-12-02 22:46:05,039 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 344 transitions. [2023-12-02 22:46:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 22:46:05,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:46:05,039 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:46:05,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:46:05,040 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:46:05,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-02 22:46:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:46:08,888 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:46:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:46:09,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 22:46:09,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:46:10,335 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 22:46:10,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-02 22:46:13,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:46:13,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 272 states and 345 transitions. [2023-12-02 22:46:13,823 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2023-12-02 22:46:13,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 22:46:13,823 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:46:13,823 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:46:13,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:46:13,824 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:46:13,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-02 22:46:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:46:17,870 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:46:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:46:18,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 22:46:18,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:46:19,324 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 22:46:19,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-02 22:46:23,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:46:23,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 273 states and 346 transitions. [2023-12-02 22:46:23,056 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 346 transitions. [2023-12-02 22:46:23,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 22:46:23,056 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:46:23,057 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:46:23,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:46:23,057 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:46:23,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-02 22:46:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:46:27,363 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:46:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:46:27,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 22:46:27,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:46:28,888 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 22:46:28,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-12-02 22:46:37,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:46:37,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:46:37,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 274 states and 347 transitions. [2023-12-02 22:46:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 347 transitions. [2023-12-02 22:46:37,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 22:46:37,723 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:46:37,724 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:46:37,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:46:37,725 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:46:37,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-02 22:46:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:46:41,777 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:46:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:46:42,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 22:46:42,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:46:43,310 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 22:46:43,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Forceful destruction successful, exit code 0 [2023-12-02 22:46:57,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:46:57,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:46:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 275 states and 348 transitions. [2023-12-02 22:46:57,265 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 348 transitions. [2023-12-02 22:46:57,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 22:46:57,265 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:46:57,266 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:46:57,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:46:57,266 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:46:57,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-02 22:47:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:47:01,601 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:47:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:47:02,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 22:47:02,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:47:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 22:47:03,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-12-02 22:47:07,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:47:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 276 states and 349 transitions. [2023-12-02 22:47:07,174 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 349 transitions. [2023-12-02 22:47:07,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 22:47:07,174 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:47:07,174 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:47:07,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:47:07,175 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:47:07,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-12-02 22:47:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:47:11,635 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:47:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:47:12,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 22:47:12,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:47:13,280 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 22:47:13,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Forceful destruction successful, exit code 0 [2023-12-02 22:47:17,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:47:17,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 277 states and 350 transitions. [2023-12-02 22:47:17,605 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 350 transitions. [2023-12-02 22:47:17,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 22:47:17,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:47:17,606 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:47:17,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:47:17,607 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:47:17,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-12-02 22:47:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:47:22,325 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:47:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:47:22,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 22:47:22,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:47:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 22:47:24,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2023-12-02 22:47:36,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:47:36,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:47:36,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 278 states and 351 transitions. [2023-12-02 22:47:36,104 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 351 transitions. [2023-12-02 22:47:36,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 22:47:36,104 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:47:36,104 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:47:36,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:47:36,105 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:47:36,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-12-02 22:47:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:47:40,889 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:47:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:47:41,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 22:47:41,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:47:42,582 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 22:47:42,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2023-12-02 22:47:56,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:47:56,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:47:56,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 279 states and 352 transitions. [2023-12-02 22:47:56,735 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 352 transitions. [2023-12-02 22:47:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 22:47:56,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:47:56,735 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:47:56,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:47:56,736 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:47:56,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5b4502-6645-4f17-9495-30b6d4bda35b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process