./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/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_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/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_c0d269cd-fa1d-4fd0-907f-75913333903b/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 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:47:48,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:47:48,321 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 23:47:48,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:47:48,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:47:48,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:47:48,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:47:48,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:47:48,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:47:48,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:47:48,352 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:47:48,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:47:48,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:47:48,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:47:48,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:47:48,355 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 23:47:48,355 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 23:47:48,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:47:48,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:47:48,356 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:47:48,357 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:47:48,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:47:48,359 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:47:48,360 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:47:48,360 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:47:48,360 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:47:48,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:47:48,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:47:48,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:47:48,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:47:48,362 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:47:48,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:47:48,363 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_c0d269cd-fa1d-4fd0-907f-75913333903b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3 [2023-12-02 23:47:48,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:47:48,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:47:48,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:47:48,622 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:47:48,623 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:47:48,624 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i [2023-12-02 23:47:51,348 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:47:51,601 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:47:51,602 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i [2023-12-02 23:47:51,619 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/data/9e8132005/854e0e4977c34ff7974f20b5f9faa7f7/FLAG9827edf07 [2023-12-02 23:47:51,632 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/data/9e8132005/854e0e4977c34ff7974f20b5f9faa7f7 [2023-12-02 23:47:51,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:47:51,636 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:47:51,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:47:51,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:47:51,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:47:51,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:51" (1/1) ... [2023-12-02 23:47:51,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6366a52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:51, skipping insertion in model container [2023-12-02 23:47:51,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:51" (1/1) ... [2023-12-02 23:47:51,721 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:47:52,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:47:52,198 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:47:52,285 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:47:52,312 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 23:47:52,318 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:47:52,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52 WrapperNode [2023-12-02 23:47:52,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:47:52,320 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:47:52,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:47:52,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:47:52,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52" (1/1) ... [2023-12-02 23:47:52,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52" (1/1) ... [2023-12-02 23:47:52,452 INFO L138 Inliner]: procedures = 177, calls = 338, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 1572 [2023-12-02 23:47:52,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:47:52,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:47:52,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:47:52,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:47:52,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52" (1/1) ... [2023-12-02 23:47:52,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52" (1/1) ... [2023-12-02 23:47:52,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52" (1/1) ... [2023-12-02 23:47:52,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52" (1/1) ... [2023-12-02 23:47:52,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52" (1/1) ... [2023-12-02 23:47:52,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52" (1/1) ... [2023-12-02 23:47:52,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52" (1/1) ... [2023-12-02 23:47:52,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52" (1/1) ... [2023-12-02 23:47:52,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:47:52,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:47:52,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:47:52,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:47:52,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:52" (1/1) ... [2023-12-02 23:47:52,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:47:52,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:47:52,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:47:52,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:47:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 23:47:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 23:47:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:47:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:47:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 23:47:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:47:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 23:47:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 23:47:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:47:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:47:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:47:52,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:47:52,839 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:47:52,842 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:47:54,217 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:47:55,719 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:47:55,720 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-12-02 23:47:55,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:55 BoogieIcfgContainer [2023-12-02 23:47:55,722 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:47:55,723 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:47:55,723 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:47:55,733 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:47:55,733 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:55" (1/1) ... [2023-12-02 23:47:55,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:47:55,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:55,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 163 states and 271 transitions. [2023-12-02 23:47:55,803 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 271 transitions. [2023-12-02 23:47:55,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:47:55,806 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:55,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:55,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:47:56,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:56,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 163 states and 269 transitions. [2023-12-02 23:47:56,010 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 269 transitions. [2023-12-02 23:47:56,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:47:56,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:56,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:56,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:47:56,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 165 states and 272 transitions. [2023-12-02 23:47:56,217 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 272 transitions. [2023-12-02 23:47:56,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 23:47:56,218 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:56,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:56,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:47:56,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:47:56,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:47:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:56,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 165 states and 270 transitions. [2023-12-02 23:47:56,346 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 270 transitions. [2023-12-02 23:47:56,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 23:47:56,348 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:56,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:56,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:47:56,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:47:56,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:47:56,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:56,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 165 states and 266 transitions. [2023-12-02 23:47:56,499 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 266 transitions. [2023-12-02 23:47:56,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:47:56,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:56,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:56,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:47:56,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:47:56,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:47:56,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:56,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 165 states and 260 transitions. [2023-12-02 23:47:56,629 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 260 transitions. [2023-12-02 23:47:56,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 23:47:56,631 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:56,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:56,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:47:56,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:47:56,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:48:06,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:48:06,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:48:06,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 165 states and 254 transitions. [2023-12-02 23:48:06,946 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 254 transitions. [2023-12-02 23:48:06,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 23:48:06,947 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:48:06,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:48:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:07,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:48:07,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:48:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:48:17,483 WARN L539 Checker$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 23:48:27,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:48:37,548 WARN L539 Checker$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 23:48:47,587 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 23:48:47,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:48:47,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 178 states and 269 transitions. [2023-12-02 23:48:47,650 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 269 transitions. [2023-12-02 23:48:47,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 23:48:47,651 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:48:47,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:48:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:47,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:48:47,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:48:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:48:47,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:48:47,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 178 states and 267 transitions. [2023-12-02 23:48:47,893 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 267 transitions. [2023-12-02 23:48:47,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 23:48:47,895 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:48:47,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:48:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:48,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:48:48,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:48:48,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:48:48,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:48:48,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 178 states and 265 transitions. [2023-12-02 23:48:48,119 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 265 transitions. [2023-12-02 23:48:48,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 23:48:48,120 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:48:48,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:48:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:48,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:48:48,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:48:48,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:48:58,383 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 23:48:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:48:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 178 states and 263 transitions. [2023-12-02 23:48:58,421 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 263 transitions. [2023-12-02 23:48:58,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 23:48:58,422 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:48:58,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:48:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:48:58,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:48:58,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:48:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:49:08,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:49:18,840 WARN L539 Checker$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 23:49:28,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:49:38,900 WARN L539 Checker$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 23:49:38,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:49:38,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 181 states and 265 transitions. [2023-12-02 23:49:38,947 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 265 transitions. [2023-12-02 23:49:38,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 23:49:38,947 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:49:38,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:49:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:49:39,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:49:39,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:49:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:49:49,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:49:59,479 WARN L539 Checker$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 23:50:09,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:50:19,536 WARN L539 Checker$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 23:50:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:50:20,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 216 states and 312 transitions. [2023-12-02 23:50:20,137 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 312 transitions. [2023-12-02 23:50:20,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 23:50:20,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:50:20,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:50:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:50:20,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:50:20,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:50:20,383 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 23:50:20,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:50:20,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 215 states and 307 transitions. [2023-12-02 23:50:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 307 transitions. [2023-12-02 23:50:20,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 23:50:20,390 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:50:20,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:50:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:50:20,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:50:20,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:50:20,683 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 11 treesize of output 7 [2023-12-02 23:50:20,713 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 23:50:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:50:20,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 216 states and 308 transitions. [2023-12-02 23:50:20,867 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 308 transitions. [2023-12-02 23:50:20,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 23:50:20,868 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:50:20,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:50:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:50:21,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:50:21,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:50:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:50:21,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:50:21,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 216 states and 306 transitions. [2023-12-02 23:50:21,274 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 306 transitions. [2023-12-02 23:50:21,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 23:50:21,275 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:50:21,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:50:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:50:21,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:50:21,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:50:21,525 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 23:50:21,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:50:21,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 216 states and 302 transitions. [2023-12-02 23:50:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 302 transitions. [2023-12-02 23:50:21,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 23:50:21,537 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:50:21,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:50:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:50:21,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:50:21,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:50:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:50:31,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:50:41,934 WARN L539 Checker$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 23:50:51,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:51:02,020 WARN L539 Checker$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 23:51:02,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:02,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 201 states and 283 transitions. [2023-12-02 23:51:02,080 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 283 transitions. [2023-12-02 23:51:02,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-02 23:51:02,080 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:02,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:02,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:51:02,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:02,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:51:02,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:02,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 201 states and 282 transitions. [2023-12-02 23:51:02,410 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 282 transitions. [2023-12-02 23:51:02,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 23:51:02,411 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:02,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:02,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:51:02,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:02,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:51:03,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:03,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 209 states and 292 transitions. [2023-12-02 23:51:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 292 transitions. [2023-12-02 23:51:03,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 23:51:03,125 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:03,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:03,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:51:03,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:03,328 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 23:51:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:03,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 209 states and 290 transitions. [2023-12-02 23:51:03,338 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2023-12-02 23:51:03,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 23:51:03,339 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:03,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:03,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:51:03,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:03,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:51:04,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:04,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 210 states and 292 transitions. [2023-12-02 23:51:04,581 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 292 transitions. [2023-12-02 23:51:04,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 23:51:04,582 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:04,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:04,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:51:04,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:04,828 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 23:51:14,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:51:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:14,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 210 states and 290 transitions. [2023-12-02 23:51:14,876 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 290 transitions. [2023-12-02 23:51:14,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 23:51:14,877 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:14,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:15,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:51:15,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:15,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:51:25,239 WARN L539 Checker$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 23:51:35,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:51:45,296 WARN L539 Checker$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 23:51:55,323 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 23:51:55,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:55,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 221 states and 303 transitions. [2023-12-02 23:51:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 303 transitions. [2023-12-02 23:51:55,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 23:51:55,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:55,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:55,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:51:55,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:55,734 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:51:55,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:55,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 221 states and 301 transitions. [2023-12-02 23:51:55,745 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 301 transitions. [2023-12-02 23:51:55,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 23:51:55,746 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:55,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:56,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:51:56,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:51:56,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:51:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 224 states and 303 transitions. [2023-12-02 23:51:56,821 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 303 transitions. [2023-12-02 23:51:56,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 23:51:56,821 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:51:56,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:51:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:51:57,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:51:57,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:51:57,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:52:07,113 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 23:52:07,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:52:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 224 states and 301 transitions. [2023-12-02 23:52:07,180 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 301 transitions. [2023-12-02 23:52:07,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 23:52:07,180 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:52:07,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:52:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:52:07,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:52:07,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:52:07,408 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 23:52:07,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:52:07,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 224 states and 297 transitions. [2023-12-02 23:52:07,420 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 297 transitions. [2023-12-02 23:52:07,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 23:52:07,421 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:52:07,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:52:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:52:07,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:52:07,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:52:07,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:52:17,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:52:27,837 WARN L539 Checker$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 23:52:37,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:52:47,904 WARN L539 Checker$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 23:52:47,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:52:47,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 227 states and 299 transitions. [2023-12-02 23:52:47,939 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 299 transitions. [2023-12-02 23:52:47,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 23:52:47,939 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:52:47,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:52:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:52:54,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:52:54,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:52:54,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:52:54,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:52:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 228 states and 297 transitions. [2023-12-02 23:52:54,412 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 297 transitions. [2023-12-02 23:52:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 23:52:54,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:52:54,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:53:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 23:53:04,724 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 23:53:04,726 INFO L158 Benchmark]: Toolchain (without parser) took 313089.99ms. Allocated memory was 144.7MB in the beginning and 266.3MB in the end (delta: 121.6MB). Free memory was 96.4MB in the beginning and 105.3MB in the end (delta: -8.9MB). Peak memory consumption was 114.9MB. Max. memory is 16.1GB. [2023-12-02 23:53:04,726 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 109.1MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:53:04,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.62ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 61.9MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-12-02 23:53:04,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.43ms. Allocated memory is still 144.7MB. Free memory was 61.9MB in the beginning and 108.7MB in the end (delta: -46.8MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-12-02 23:53:04,727 INFO L158 Benchmark]: Boogie Preprocessor took 114.08ms. Allocated memory is still 144.7MB. Free memory was 108.7MB in the beginning and 98.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:53:04,728 INFO L158 Benchmark]: RCFGBuilder took 3153.35ms. Allocated memory was 144.7MB in the beginning and 266.3MB in the end (delta: 121.6MB). Free memory was 98.2MB in the beginning and 160.9MB in the end (delta: -62.7MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2023-12-02 23:53:04,728 INFO L158 Benchmark]: CodeCheck took 309002.87ms. Allocated memory is still 266.3MB. Free memory was 160.9MB in the beginning and 105.3MB in the end (delta: 55.6MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2023-12-02 23:53:04,730 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 0.20ms. Allocated memory is still 109.1MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.62ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 61.9MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.43ms. Allocated memory is still 144.7MB. Free memory was 61.9MB in the beginning and 108.7MB in the end (delta: -46.8MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.08ms. Allocated memory is still 144.7MB. Free memory was 108.7MB in the beginning and 98.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 3153.35ms. Allocated memory was 144.7MB in the beginning and 266.3MB in the end (delta: 121.6MB). Free memory was 98.2MB in the beginning and 160.9MB in the end (delta: -62.7MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. * CodeCheck took 309002.87ms. Allocated memory is still 266.3MB. Free memory was 160.9MB in the beginning and 105.3MB in the end (delta: 55.6MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 23:53:04,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/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_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/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_c0d269cd-fa1d-4fd0-907f-75913333903b/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 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:53:06,627 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:53:06,703 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 23:53:06,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:53:06,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:53:06,735 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:53:06,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:53:06,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:53:06,737 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:53:06,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:53:06,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:53:06,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:53:06,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:53:06,740 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 23:53:06,740 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 23:53:06,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:53:06,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:53:06,742 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:53:06,743 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:53:06,743 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:53:06,744 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:53:06,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:53:06,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:53:06,746 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:53:06,746 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:53:06,747 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:53:06,747 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:53:06,748 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:06,748 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:53:06,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:53:06,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:53:06,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:53:06,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:53:06,750 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:53:06,750 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:06,750 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:53:06,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:53:06,751 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_c0d269cd-fa1d-4fd0-907f-75913333903b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3 [2023-12-02 23:53:07,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:53:07,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:53:07,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:53:07,072 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:53:07,073 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:53:07,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i [2023-12-02 23:53:09,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:53:10,142 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:53:10,143 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i [2023-12-02 23:53:10,162 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/data/65c64ce49/36cd61cebe214d48ba567cf9c45ba051/FLAGca035f6a0 [2023-12-02 23:53:10,177 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/data/65c64ce49/36cd61cebe214d48ba567cf9c45ba051 [2023-12-02 23:53:10,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:53:10,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:53:10,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:53:10,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:53:10,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:53:10,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:53:10" (1/1) ... [2023-12-02 23:53:10,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e0d3501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:10, skipping insertion in model container [2023-12-02 23:53:10,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:53:10" (1/1) ... [2023-12-02 23:53:10,263 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:53:10,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:53:10,820 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 23:53:10,833 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:53:10,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:53:10,910 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:53:10,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:53:11,023 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 23:53:11,029 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:53:11,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11 WrapperNode [2023-12-02 23:53:11,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:53:11,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:53:11,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:53:11,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:53:11,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11" (1/1) ... [2023-12-02 23:53:11,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11" (1/1) ... [2023-12-02 23:53:11,140 INFO L138 Inliner]: procedures = 180, calls = 338, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 1238 [2023-12-02 23:53:11,141 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:53:11,142 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:53:11,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:53:11,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:53:11,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11" (1/1) ... [2023-12-02 23:53:11,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11" (1/1) ... [2023-12-02 23:53:11,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11" (1/1) ... [2023-12-02 23:53:11,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11" (1/1) ... [2023-12-02 23:53:11,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11" (1/1) ... [2023-12-02 23:53:11,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11" (1/1) ... [2023-12-02 23:53:11,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11" (1/1) ... [2023-12-02 23:53:11,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11" (1/1) ... [2023-12-02 23:53:11,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:53:11,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:53:11,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:53:11,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:53:11,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:11" (1/1) ... [2023-12-02 23:53:11,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:53:11,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:53:11,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:53:11,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:53:11,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 23:53:11,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 23:53:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:53:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:53:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 23:53:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:53:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 23:53:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 23:53:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:53:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 23:53:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:53:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:53:11,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:53:11,537 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:53:11,540 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:53:26,922 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:53:27,374 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:53:27,374 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-12-02 23:53:27,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:53:27 BoogieIcfgContainer [2023-12-02 23:53:27,376 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:53:27,377 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:53:27,377 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:53:27,387 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:53:27,387 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:53:27" (1/1) ... [2023-12-02 23:53:27,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:53:27,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:27,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 163 states and 271 transitions. [2023-12-02 23:53:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 271 transitions. [2023-12-02 23:53:27,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:53:27,463 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:27,464 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:27,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:53:27,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:53:27,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 23:53:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:27,796 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:53:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:27,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:53:27,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:53:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:53:27,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 23:53:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 163 states and 269 transitions. [2023-12-02 23:53:27,942 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 269 transitions. [2023-12-02 23:53:27,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:53:27,944 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:27,944 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:27,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:53:27,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:53:27,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 23:53:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:28,274 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:53:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:28,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 23:53:28,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:53:28,406 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:53:28,407 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:53:28,408 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:53:28,418 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 30 treesize of output 39 [2023-12-02 23:53:28,505 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 23:53:28,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-12-02 23:53:28,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:53:28,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 23:53:28,536 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:53:29,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:29,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 165 states and 272 transitions. [2023-12-02 23:53:29,097 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 272 transitions. [2023-12-02 23:53:29,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 23:53:29,098 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:29,099 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:29,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:53:29,100 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:53:29,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:53:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:29,409 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:53:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:29,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:53:29,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:53:29,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:53:29,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 23:53:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:29,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 165 states and 270 transitions. [2023-12-02 23:53:29,566 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 270 transitions. [2023-12-02 23:53:29,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 23:53:29,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:29,568 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:29,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:53:29,569 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:53:29,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 23:53:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:29,906 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:53:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:30,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:53:30,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:53:30,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:53:30,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 23:53:30,056 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:53:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:30,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 165 states and 266 transitions. [2023-12-02 23:53:30,065 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 266 transitions. [2023-12-02 23:53:30,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:53:30,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:30,067 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:30,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:53:30,068 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:53:30,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 23:53:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:30,415 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:53:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:30,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:53:30,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:53:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:53:30,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 23:53:30,570 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:53:30,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:30,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 165 states and 260 transitions. [2023-12-02 23:53:30,579 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 260 transitions. [2023-12-02 23:53:30,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 23:53:30,581 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:30,581 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:30,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:53:30,582 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:53:30,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 23:53:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:30,905 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:53:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:31,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:53:31,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:53:31,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:53:31,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-02 23:53:31,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:31,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 165 states and 252 transitions. [2023-12-02 23:53:31,848 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 252 transitions. [2023-12-02 23:53:31,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 23:53:31,849 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:31,849 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:31,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:53:31,851 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:53:31,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 23:53:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:32,295 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:53:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:32,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:53:32,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:53:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:53:32,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 23:53:34,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:34,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 178 states and 267 transitions. [2023-12-02 23:53:34,675 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 267 transitions. [2023-12-02 23:53:34,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 23:53:34,676 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:34,676 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:34,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:53:34,677 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:53:34,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 23:53:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:35,072 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:53:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:35,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:53:35,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:53:35,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:53:35,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 23:53:35,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:35,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 178 states and 265 transitions. [2023-12-02 23:53:35,309 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 265 transitions. [2023-12-02 23:53:35,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 23:53:35,309 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:35,309 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:35,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:53:35,310 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:53:35,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 23:53:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:35,815 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:53:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:36,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:53:36,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:53:36,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:53:36,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 23:53:36,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:36,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 178 states and 263 transitions. [2023-12-02 23:53:36,063 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 263 transitions. [2023-12-02 23:53:36,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 23:53:36,064 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:36,064 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:36,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:53:36,065 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:53:36,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 23:53:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:36,580 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:53:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:36,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:53:36,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:53:36,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:53:36,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 23:53:37,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:37,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 181 states and 265 transitions. [2023-12-02 23:53:37,006 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 265 transitions. [2023-12-02 23:53:37,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 23:53:37,007 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:37,007 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:53:37,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:53:37,009 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:53:37,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 23:53:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:37,565 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:53:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:37,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:53:37,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:53:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:53:38,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 23:53:48,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:53:58,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:54:08,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:54:15,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:54:18,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:54:19,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:19,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 216 states and 312 transitions. [2023-12-02 23:54:19,996 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 312 transitions. [2023-12-02 23:54:19,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 23:54:19,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:19,997 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:19,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:19,998 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:19,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 23:54:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:20,660 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:54:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:21,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:54:21,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:21,006 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 23:54:21,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 23:54:21,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:21,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 215 states and 307 transitions. [2023-12-02 23:54:21,022 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 307 transitions. [2023-12-02 23:54:21,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 23:54:21,023 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:21,023 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:21,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:21,024 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:21,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 23:54:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:21,785 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:54:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:22,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:54:22,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:54:22,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 23:54:22,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:22,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 215 states and 305 transitions. [2023-12-02 23:54:22,584 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 305 transitions. [2023-12-02 23:54:22,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 23:54:22,584 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:22,584 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:22,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:22,585 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:22,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 23:54:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:23,193 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:54:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:23,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:54:23,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:23,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:54:23,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-12-02 23:54:33,984 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 23:54:34,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:34,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 216 states and 306 transitions. [2023-12-02 23:54:34,031 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 306 transitions. [2023-12-02 23:54:34,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 23:54:34,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:34,032 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:34,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:34,033 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:34,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 23:54:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:34,917 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:54:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:35,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 23:54:35,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:35,279 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:54:35,280 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:54:35,281 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:54:35,283 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 30 treesize of output 39 [2023-12-02 23:54:35,318 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 23:54:35,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-12-02 23:54:35,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:54:35,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 23:54:36,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:36,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 218 states and 309 transitions. [2023-12-02 23:54:36,103 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 309 transitions. [2023-12-02 23:54:36,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 23:54:36,104 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:36,104 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:36,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:36,105 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:36,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 23:54:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:36,941 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:54:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:37,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:54:37,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:37,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:54:37,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 23:54:37,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:37,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 203 states and 290 transitions. [2023-12-02 23:54:37,464 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 290 transitions. [2023-12-02 23:54:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 23:54:37,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:37,464 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:37,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:37,465 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:37,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 23:54:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:38,330 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:54:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:38,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:54:38,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:54:38,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 23:54:38,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:38,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 203 states and 286 transitions. [2023-12-02 23:54:38,662 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 286 transitions. [2023-12-02 23:54:38,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 23:54:38,662 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:38,662 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:38,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:38,663 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:38,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 23:54:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:39,449 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:54:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:39,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:54:39,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:39,764 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:54:39,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 23:54:49,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:54:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:49,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 203 states and 284 transitions. [2023-12-02 23:54:49,827 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 284 transitions. [2023-12-02 23:54:49,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 23:54:49,827 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:49,828 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:49,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:49,828 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:49,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 23:54:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:50,907 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:54:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:51,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:54:51,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:51,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:54:51,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 23:54:51,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:51,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 203 states and 283 transitions. [2023-12-02 23:54:51,507 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 283 transitions. [2023-12-02 23:54:51,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 23:54:51,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:51,508 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:51,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:51,509 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:51,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 23:54:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:52,444 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:54:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:52,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:54:52,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:52,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:54:52,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 23:54:52,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:52,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 203 states and 281 transitions. [2023-12-02 23:54:52,744 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 281 transitions. [2023-12-02 23:54:52,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 23:54:52,744 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:52,745 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:52,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:52,745 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:52,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 23:54:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:53,821 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:54:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:54,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:54:54,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:54,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:54:54,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 23:54:56,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:55:07,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:55:17,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:55:22,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:55:32,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:55:32,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:55:32,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 211 states and 291 transitions. [2023-12-02 23:55:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 291 transitions. [2023-12-02 23:55:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 23:55:32,641 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:55:32,641 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:55:32,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:55:32,642 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:55:32,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 23:55:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:33,846 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:55:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:34,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:55:34,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:55:34,413 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:55:34,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-02 23:55:44,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:55:54,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:55:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:55:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 212 states and 293 transitions. [2023-12-02 23:55:54,515 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 293 transitions. [2023-12-02 23:55:54,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 23:55:54,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:55:54,516 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:55:54,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:55:54,517 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:55:54,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 23:55:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:55,572 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:55:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:55,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:55:55,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:55:55,876 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:55:55,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 23:55:55,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:55:55,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 212 states and 291 transitions. [2023-12-02 23:55:55,922 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 291 transitions. [2023-12-02 23:55:55,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 23:55:55,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:55:55,923 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:55:55,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:55:55,924 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:55:55,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 23:55:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:57,058 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:55:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:57,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:55:57,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:55:57,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:55:57,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-02 23:55:57,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:55:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 223 states and 304 transitions. [2023-12-02 23:55:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 304 transitions. [2023-12-02 23:55:57,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 23:55:57,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:55:57,629 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:55:57,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:55:57,629 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:55:57,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 23:55:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:59,030 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:55:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:59,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:55:59,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:55:59,553 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:55:59,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-02 23:55:59,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:55:59,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 223 states and 302 transitions. [2023-12-02 23:55:59,585 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 302 transitions. [2023-12-02 23:55:59,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 23:55:59,586 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:55:59,586 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:55:59,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:55:59,587 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:55:59,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 23:56:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:00,954 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:56:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:01,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:56:01,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:56:01,674 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 23:56:01,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 23:56:11,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:56:21,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:56:21,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:56:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 226 states and 304 transitions. [2023-12-02 23:56:21,791 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 304 transitions. [2023-12-02 23:56:21,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 23:56:21,792 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:56:21,792 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:56:21,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:56:21,793 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:56:21,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 23:56:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:23,218 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:56:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:23,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:56:23,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:56:23,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:56:23,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 23:56:23,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:56:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 226 states and 302 transitions. [2023-12-02 23:56:23,621 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2023-12-02 23:56:23,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 23:56:23,621 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:56:23,622 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:56:23,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:56:23,622 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:56:23,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 23:56:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:24,964 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:56:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:25,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:56:25,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:56:25,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 23:56:25,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 23:56:25,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:56:25,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 226 states and 298 transitions. [2023-12-02 23:56:25,345 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 298 transitions. [2023-12-02 23:56:25,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 23:56:25,345 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:56:25,346 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:56:25,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:56:25,346 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:56:25,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 23:56:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:26,759 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:56:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:27,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:56:27,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:56:27,362 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:56:27,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 23:56:27,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:56:27,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 229 states and 300 transitions. [2023-12-02 23:56:27,403 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 300 transitions. [2023-12-02 23:56:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 23:56:27,404 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:56:27,404 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:56:27,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:56:27,405 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:56:27,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 23:56:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:29,171 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:56:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:29,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:56:29,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:56:29,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:56:29,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 23:56:30,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:56:30,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 230 states and 298 transitions. [2023-12-02 23:56:30,453 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 298 transitions. [2023-12-02 23:56:30,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 23:56:30,453 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:56:30,453 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:56:30,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:56:30,454 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:56:30,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 23:56:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:32,263 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:56:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:32,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:56:32,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:56:32,825 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:56:32,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 23:56:40,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:56:40,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:56:40,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 231 states and 299 transitions. [2023-12-02 23:56:40,435 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 299 transitions. [2023-12-02 23:56:40,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 23:56:40,435 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:56:40,435 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:56:40,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:56:40,436 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:56:40,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 23:56:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:42,613 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:56:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:43,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 23:56:43,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:56:43,199 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:56:43,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-02 23:56:54,041 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 23:56:54,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:56:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 232 states and 300 transitions. [2023-12-02 23:56:54,093 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 300 transitions. [2023-12-02 23:56:54,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 23:56:54,093 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:56:54,093 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:56:54,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:56:54,095 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:56:54,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 23:56:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:55,929 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:56:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:56:56,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:56:56,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:56:56,499 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:56:56,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-02 23:57:07,363 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 23:57:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:57:07,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 233 states and 301 transitions. [2023-12-02 23:57:07,404 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 301 transitions. [2023-12-02 23:57:07,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 23:57:07,404 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:57:07,404 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:57:07,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:57:07,405 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:57:07,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 23:57:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:09,368 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:57:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:09,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 23:57:09,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:57:09,986 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:57:10,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2023-12-02 23:57:10,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:57:10,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 234 states and 302 transitions. [2023-12-02 23:57:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 302 transitions. [2023-12-02 23:57:10,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 23:57:10,982 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:57:10,982 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:57:10,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:57:10,983 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:57:10,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 23:57:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:13,004 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:57:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:13,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:57:13,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:57:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:57:13,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 23:57:14,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:57:14,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 235 states and 303 transitions. [2023-12-02 23:57:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 303 transitions. [2023-12-02 23:57:14,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 23:57:14,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:57:14,600 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:57:14,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:57:14,601 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:57:14,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 23:57:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:16,457 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:57:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:16,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:57:16,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:57:17,083 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:57:17,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 23:57:28,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:57:28,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:57:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 236 states and 304 transitions. [2023-12-02 23:57:28,162 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 304 transitions. [2023-12-02 23:57:28,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 23:57:28,162 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:57:28,163 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:57:28,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:57:28,163 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:57:28,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 23:57:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:30,240 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:57:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:30,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:57:30,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:57:31,019 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:57:31,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 23:57:42,340 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 23:57:42,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:57:42,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 237 states and 305 transitions. [2023-12-02 23:57:42,397 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 305 transitions. [2023-12-02 23:57:42,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 23:57:42,398 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:57:42,398 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:57:42,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:57:42,399 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:57:42,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 23:57:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:44,945 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:57:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:45,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:57:45,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:57:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:57:45,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-02 23:57:47,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:57:47,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 238 states and 306 transitions. [2023-12-02 23:57:47,386 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 306 transitions. [2023-12-02 23:57:47,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 23:57:47,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:57:47,386 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:57:47,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:57:47,387 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:57:47,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 23:57:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:50,205 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:57:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:50,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:57:50,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:57:51,086 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:57:51,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 23:57:52,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:57:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 239 states and 307 transitions. [2023-12-02 23:57:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 307 transitions. [2023-12-02 23:57:52,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 23:57:52,752 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:57:52,752 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:57:52,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:57:52,753 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:57:52,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 23:57:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:55,857 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:57:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:57:56,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:57:56,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:57:56,802 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:57:56,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 23:58:06,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:58:06,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:06,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 240 states and 308 transitions. [2023-12-02 23:58:06,294 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 308 transitions. [2023-12-02 23:58:06,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 23:58:06,294 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:06,294 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:58:06,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:58:06,295 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:58:06,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 23:58:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:08,740 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:58:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:09,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:58:09,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:09,459 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:58:09,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-02 23:58:20,756 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 23:58:20,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 241 states and 309 transitions. [2023-12-02 23:58:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 309 transitions. [2023-12-02 23:58:20,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 23:58:20,818 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:20,818 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:58:20,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:58:20,819 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:58:20,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 23:58:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:23,279 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:58:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:23,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:58:23,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:58:24,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 23:58:25,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:25,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 242 states and 310 transitions. [2023-12-02 23:58:25,339 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 310 transitions. [2023-12-02 23:58:25,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 23:58:25,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:25,340 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:58:25,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:58:25,341 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:58:25,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 23:58:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:27,923 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:58:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:28,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:58:28,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:28,743 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:58:28,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 23:58:30,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:30,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 243 states and 311 transitions. [2023-12-02 23:58:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 311 transitions. [2023-12-02 23:58:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 23:58:30,346 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:30,346 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:58:30,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:58:30,347 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:58:30,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 23:58:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:32,924 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:58:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:33,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 23:58:33,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:58:33,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-02 23:58:45,105 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 23:58:45,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:45,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 244 states and 312 transitions. [2023-12-02 23:58:45,173 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 312 transitions. [2023-12-02 23:58:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 23:58:45,173 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:45,173 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:58:45,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:58:45,174 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:58:45,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 23:58:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:48,079 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:58:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:48,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 23:58:48,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:49,098 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:58:49,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 23:59:01,097 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 23:59:01,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:01,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 245 states and 313 transitions. [2023-12-02 23:59:01,159 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 313 transitions. [2023-12-02 23:59:01,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 23:59:01,159 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:01,159 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:59:01,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:59:01,161 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:59:01,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 23:59:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:04,631 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:59:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:05,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 23:59:05,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:05,557 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:59:05,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 23:59:07,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:07,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 246 states and 314 transitions. [2023-12-02 23:59:07,234 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 314 transitions. [2023-12-02 23:59:07,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 23:59:07,234 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:07,234 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:59:07,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:59:07,235 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:59:07,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 23:59:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:09,915 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:59:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:10,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 23:59:10,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:10,777 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:59:10,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 23:59:12,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:12,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 247 states and 315 transitions. [2023-12-02 23:59:12,704 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 315 transitions. [2023-12-02 23:59:12,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 23:59:12,705 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:12,705 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:59:12,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:59:12,706 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:59:12,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 23:59:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:15,668 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:59:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:16,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 23:59:16,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:59:16,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-02 23:59:28,868 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 23:59:28,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:28,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 248 states and 316 transitions. [2023-12-02 23:59:28,927 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 316 transitions. [2023-12-02 23:59:28,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 23:59:28,927 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:28,928 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:59:28,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:59:28,929 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:59:28,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 23:59:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:31,986 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:59:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:32,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 23:59:32,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:33,087 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 2 proven. 66 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:59:33,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-02 23:59:45,504 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 23:59:45,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:45,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 249 states and 317 transitions. [2023-12-02 23:59:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 317 transitions. [2023-12-02 23:59:45,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 23:59:45,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:45,552 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:59:45,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:59:45,553 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:59:45,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 23:59:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:48,659 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:59:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:49,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 23:59:49,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:49,695 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:59:49,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 23:59:51,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:51,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 250 states and 318 transitions. [2023-12-02 23:59:51,947 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 318 transitions. [2023-12-02 23:59:51,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 23:59:51,948 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:51,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:59:51,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:59:51,949 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:59:51,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 23:59:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:54,994 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:59:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:55,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 23:59:55,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 2 proven. 66 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:59:56,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-02 23:59:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:58,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 251 states and 319 transitions. [2023-12-02 23:59:58,645 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 319 transitions. [2023-12-02 23:59:58,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 23:59:58,646 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:58,646 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:59:58,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:59:58,647 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:59:58,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-03 00:00:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:02,291 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:00:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:02,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 00:00:02,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:00:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 00:00:03,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-03 00:00:16,244 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 [] [2023-12-03 00:00:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:00:16,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 252 states and 320 transitions. [2023-12-03 00:00:16,289 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 320 transitions. [2023-12-03 00:00:16,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-03 00:00:16,289 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:00:16,289 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:00:16,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:00:16,290 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:00:16,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-03 00:00:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:19,341 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:00:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:19,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 00:00:19,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:00:20,274 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 00:00:20,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-03 00:00:32,335 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 [] [2023-12-03 00:00:32,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:00:32,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 253 states and 321 transitions. [2023-12-03 00:00:32,389 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 321 transitions. [2023-12-03 00:00:32,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-03 00:00:32,389 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:00:32,389 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:00:32,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:00:32,390 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:00:32,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-03 00:00:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:35,561 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:00:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:36,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 00:00:36,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:00:36,491 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 00:00:36,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-03 00:00:38,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:00:38,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 254 states and 322 transitions. [2023-12-03 00:00:38,560 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 322 transitions. [2023-12-03 00:00:38,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-03 00:00:38,560 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:00:38,560 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:00:38,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:00:38,561 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:00:38,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-03 00:00:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:41,786 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:00:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:42,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 00:00:42,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:00:42,745 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 00:00:42,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-03 00:00:44,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:00:44,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 255 states and 323 transitions. [2023-12-03 00:00:44,979 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 323 transitions. [2023-12-03 00:00:44,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-03 00:00:44,979 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:00:44,979 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:00:44,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:00:44,980 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:00:44,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-03 00:00:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:48,491 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:00:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:48,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 00:00:48,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:00:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 00:00:49,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Forceful destruction successful, exit code 0 [2023-12-03 00:01:01,849 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 [] [2023-12-03 00:01:01,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:01,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 256 states and 324 transitions. [2023-12-03 00:01:01,916 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 324 transitions. [2023-12-03 00:01:01,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-03 00:01:01,916 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:01,916 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:01:01,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:01:01,917 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:01:01,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-03 00:01:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:05,308 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:01:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:05,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 00:01:05,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 00:01:06,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-03 00:01:19,186 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 [] [2023-12-03 00:01:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:19,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 257 states and 325 transitions. [2023-12-03 00:01:19,239 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 325 transitions. [2023-12-03 00:01:19,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-03 00:01:19,239 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:19,239 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:01:19,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:01:19,240 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:01:19,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-03 00:01:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:22,723 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:01:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:23,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 00:01:23,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:23,888 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 00:01:23,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-03 00:01:26,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 258 states and 326 transitions. [2023-12-03 00:01:26,552 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 326 transitions. [2023-12-03 00:01:26,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-03 00:01:26,553 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:26,553 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:01:26,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:01:26,554 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:01:26,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-03 00:01:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:30,133 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:01:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:30,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 00:01:30,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:31,301 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 2 proven. 120 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 00:01:31,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-03 00:01:34,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:34,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 259 states and 327 transitions. [2023-12-03 00:01:34,491 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 327 transitions. [2023-12-03 00:01:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-03 00:01:34,491 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:34,491 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:01:34,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:01:34,492 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:01:34,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-03 00:01:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:38,256 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:01:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:38,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 00:01:38,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:39,654 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 2 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 00:01:39,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-03 00:01:53,186 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 [] [2023-12-03 00:01:53,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:53,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 260 states and 328 transitions. [2023-12-03 00:01:53,257 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 328 transitions. [2023-12-03 00:01:53,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-03 00:01:53,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:53,257 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:01:53,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:01:53,258 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:01:53,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-03 00:01:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:57,654 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:01:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:58,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 00:01:58,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:59,120 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 2 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 00:01:59,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-03 00:02:13,002 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 [] [2023-12-03 00:02:13,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:02:13,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 261 states and 329 transitions. [2023-12-03 00:02:13,067 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 329 transitions. [2023-12-03 00:02:13,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-03 00:02:13,068 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:02:13,068 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:02:13,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:02:13,069 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:02:13,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d269cd-fa1d-4fd0-907f-75913333903b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process