./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/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_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/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_9f3b5280-adda-42c5-8c80-4e602179da27/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 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:47:05,704 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:47:05,765 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 21:47:05,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:47:05,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:47:05,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:47:05,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:47:05,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:47:05,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:47:05,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:47:05,796 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:47:05,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:47:05,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:47:05,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:47:05,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:47:05,798 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 21:47:05,799 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 21:47:05,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:47:05,800 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:47:05,800 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:47:05,801 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:47:05,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:47:05,803 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:47:05,803 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:47:05,804 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:47:05,804 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:47:05,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:47:05,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:47:05,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:47:05,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:47:05,807 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:47:05,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:47:05,807 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_9f3b5280-adda-42c5-8c80-4e602179da27/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 [2023-12-02 21:47:06,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:47:06,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:47:06,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:47:06,067 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:47:06,067 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:47:06,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2023-12-02 21:47:08,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:47:09,162 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:47:09,163 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2023-12-02 21:47:09,184 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/data/187f284f3/1a68e28be62c4f50bbc0dbc04f40d1db/FLAG9a40a4f84 [2023-12-02 21:47:09,197 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/data/187f284f3/1a68e28be62c4f50bbc0dbc04f40d1db [2023-12-02 21:47:09,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:47:09,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:47:09,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:47:09,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:47:09,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:47:09,206 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:47:09" (1/1) ... [2023-12-02 21:47:09,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33772f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:09, skipping insertion in model container [2023-12-02 21:47:09,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:47:09" (1/1) ... [2023-12-02 21:47:09,275 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:47:09,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:47:09,916 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:47:10,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:47:10,095 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:47:10,103 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:47:10,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10 WrapperNode [2023-12-02 21:47:10,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:47:10,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:47:10,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:47:10,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:47:10,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10" (1/1) ... [2023-12-02 21:47:10,157 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10" (1/1) ... [2023-12-02 21:47:10,394 INFO L138 Inliner]: procedures = 177, calls = 732, calls flagged for inlining = 508, calls inlined = 1007, statements flattened = 6205 [2023-12-02 21:47:10,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:47:10,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:47:10,395 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:47:10,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:47:10,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10" (1/1) ... [2023-12-02 21:47:10,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10" (1/1) ... [2023-12-02 21:47:10,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10" (1/1) ... [2023-12-02 21:47:10,427 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10" (1/1) ... [2023-12-02 21:47:10,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10" (1/1) ... [2023-12-02 21:47:10,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10" (1/1) ... [2023-12-02 21:47:10,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10" (1/1) ... [2023-12-02 21:47:10,597 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10" (1/1) ... [2023-12-02 21:47:10,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:47:10,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:47:10,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:47:10,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:47:10,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:10" (1/1) ... [2023-12-02 21:47:10,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:47:10,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:47:10,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:47:10,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:47:10,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 21:47:10,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 21:47:10,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 21:47:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:47:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 21:47:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 21:47:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 21:47:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 21:47:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:47:10,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:47:10,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:47:10,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:47:10,870 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:47:10,872 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:47:14,761 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:47:17,144 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:47:17,144 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-12-02 21:47:17,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:47:17 BoogieIcfgContainer [2023-12-02 21:47:17,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:47:17,149 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:47:17,149 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:47:17,159 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:47:17,159 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:47:17" (1/1) ... [2023-12-02 21:47:17,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:47:17,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:17,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 3598 states and 5169 transitions. [2023-12-02 21:47:17,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 5169 transitions. [2023-12-02 21:47:17,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 21:47:17,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:17,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:17,440 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 21:47:17,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 3598 states and 5167 transitions. [2023-12-02 21:47:17,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 5167 transitions. [2023-12-02 21:47:17,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:47:17,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:17,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:17,626 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 21:47:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:17,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 3600 states and 5170 transitions. [2023-12-02 21:47:17,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5170 transitions. [2023-12-02 21:47:17,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 21:47:17,688 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:17,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:17,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:47:17,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:47:17,786 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 21:47:17,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:17,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 3600 states and 5168 transitions. [2023-12-02 21:47:17,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5168 transitions. [2023-12-02 21:47:17,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 21:47:17,817 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:17,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:17,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:47:17,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:47:17,899 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 21:47:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:17,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5164 states to 3600 states and 5164 transitions. [2023-12-02 21:47:17,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5164 transitions. [2023-12-02 21:47:17,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 21:47:17,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:17,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:18,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:47:18,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:47:18,027 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 21:47:18,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:18,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5158 states to 3600 states and 5158 transitions. [2023-12-02 21:47:18,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5158 transitions. [2023-12-02 21:47:18,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:47:18,059 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:18,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:18,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:47:18,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:47:18,235 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 21:47:28,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:47:28,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:28,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5152 states to 3600 states and 5152 transitions. [2023-12-02 21:47:28,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5152 transitions. [2023-12-02 21:47:28,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 21:47:28,408 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:28,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:28,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:47:28,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:47:28,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:47:38,950 WARN L539 Checker$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 21:47:49,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:47:59,164 WARN L539 Checker$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 21:48:09,201 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 21:48:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:09,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 3613 states and 5167 transitions. [2023-12-02 21:48:09,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5167 transitions. [2023-12-02 21:48:09,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 21:48:09,285 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:09,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:09,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:48:09,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:09,489 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 21:48:09,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 3613 states and 5165 transitions. [2023-12-02 21:48:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5165 transitions. [2023-12-02 21:48:09,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 21:48:09,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:09,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:09,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:48:09,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:09,687 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 21:48:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:09,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 3613 states and 5163 transitions. [2023-12-02 21:48:09,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5163 transitions. [2023-12-02 21:48:09,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 21:48:09,709 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:09,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:09,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:48:09,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:09,925 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 21:48:19,937 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 21:48:19,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:19,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 3613 states and 5161 transitions. [2023-12-02 21:48:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5161 transitions. [2023-12-02 21:48:19,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 21:48:19,980 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:19,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:20,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:48:20,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:20,326 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 21:48:30,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:48:40,362 WARN L539 Checker$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 21:48:50,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:49:00,414 WARN L539 Checker$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 21:49:00,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:00,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 3616 states and 5163 transitions. [2023-12-02 21:49:00,471 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 5163 transitions. [2023-12-02 21:49:00,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 21:49:00,472 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:00,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:00,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:49:00,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:00,766 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 15 treesize of output 1 [2023-12-02 21:49:00,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-02 21:49:00,804 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 21:49:00,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:00,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 3618 states and 5166 transitions. [2023-12-02 21:49:00,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 5166 transitions. [2023-12-02 21:49:00,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 21:49:00,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:00,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:01,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:49:01,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:01,194 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 21:49:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:01,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 3617 states and 5161 transitions. [2023-12-02 21:49:01,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5161 transitions. [2023-12-02 21:49:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 21:49:01,215 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:01,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:01,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:49:01,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:01,461 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 21:49:01,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:01,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 3617 states and 5157 transitions. [2023-12-02 21:49:01,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5157 transitions. [2023-12-02 21:49:01,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 21:49:01,481 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:01,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:01,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:49:01,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:01,761 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 21:49:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:01,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 3617 states and 5155 transitions. [2023-12-02 21:49:01,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5155 transitions. [2023-12-02 21:49:01,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 21:49:01,781 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:01,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:02,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:49:02,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:02,042 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 21:49:12,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:49:12,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:12,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 3617 states and 5153 transitions. [2023-12-02 21:49:12,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5153 transitions. [2023-12-02 21:49:12,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 21:49:12,091 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:12,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:12,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:49:12,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:12,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:49:22,582 WARN L539 Checker$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 21:49:32,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:49:42,648 WARN L539 Checker$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 21:49:52,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:03,640 WARN L539 Checker$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 21:50:13,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:23,696 WARN L539 Checker$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 21:50:33,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:33,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:50:33,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 3661 states and 5210 transitions. [2023-12-02 21:50:33,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 5210 transitions. [2023-12-02 21:50:33,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 21:50:33,772 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:50:33,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:50:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:50:34,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:50:34,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:50:34,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:50:44,089 WARN L539 Checker$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 21:50:44,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:50:44,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 3661 states and 5208 transitions. [2023-12-02 21:50:44,125 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 5208 transitions. [2023-12-02 21:50:44,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 21:50:44,126 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:50:44,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:50:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:50:44,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:50:44,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:50:44,394 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 21:50:44,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:50:44,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 3661 states and 5204 transitions. [2023-12-02 21:50:44,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 5204 transitions. [2023-12-02 21:50:44,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 21:50:44,416 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:50:44,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:50:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:50:44,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:50:44,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:50:44,709 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 21:50:44,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:50:44,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 3661 states and 5202 transitions. [2023-12-02 21:50:44,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 5202 transitions. [2023-12-02 21:50:44,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 21:50:44,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:50:44,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:50:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:50:45,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:50:45,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:50:45,190 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 21:50:55,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:51:05,250 WARN L539 Checker$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 21:51:15,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:51:25,344 WARN L539 Checker$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 21:51:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:51:25,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 3664 states and 5204 transitions. [2023-12-02 21:51:25,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 5204 transitions. [2023-12-02 21:51:25,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 21:51:25,380 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:51:25,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:51:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:51:25,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:51:25,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:51:25,665 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 21:51:35,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:51:45,726 WARN L539 Checker$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 21:51:55,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:52:05,792 WARN L539 Checker$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 21:52:05,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:05,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 3649 states and 5185 transitions. [2023-12-02 21:52:05,834 INFO L276 IsEmpty]: Start isEmpty. Operand 3649 states and 5185 transitions. [2023-12-02 21:52:05,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 21:52:05,834 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:05,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:52:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:06,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:52:06,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:06,140 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 21:52:06,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:06,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 3649 states and 5184 transitions. [2023-12-02 21:52:06,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3649 states and 5184 transitions. [2023-12-02 21:52:06,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 21:52:06,166 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:06,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:52:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:06,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:52:06,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:06,572 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 21:52:06,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:06,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5194 states to 3657 states and 5194 transitions. [2023-12-02 21:52:06,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 5194 transitions. [2023-12-02 21:52:06,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 21:52:06,911 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:06,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:52:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 21:52:17,181 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 21:52:17,183 INFO L158 Benchmark]: Toolchain (without parser) took 307983.13ms. Allocated memory was 157.3MB in the beginning and 478.2MB in the end (delta: 320.9MB). Free memory was 112.8MB in the beginning and 259.0MB in the end (delta: -146.2MB). Peak memory consumption was 177.0MB. Max. memory is 16.1GB. [2023-12-02 21:52:17,184 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:52:17,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 903.14ms. Allocated memory is still 157.3MB. Free memory was 112.5MB in the beginning and 55.8MB in the end (delta: 56.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-12-02 21:52:17,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 289.61ms. Allocated memory was 157.3MB in the beginning and 213.9MB in the end (delta: 56.6MB). Free memory was 55.4MB in the beginning and 153.1MB in the end (delta: -97.7MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2023-12-02 21:52:17,185 INFO L158 Benchmark]: Boogie Preprocessor took 232.45ms. Allocated memory is still 213.9MB. Free memory was 153.1MB in the beginning and 121.9MB in the end (delta: 31.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 21:52:17,185 INFO L158 Benchmark]: RCFGBuilder took 6519.07ms. Allocated memory was 213.9MB in the beginning and 364.9MB in the end (delta: 151.0MB). Free memory was 121.9MB in the beginning and 215.5MB in the end (delta: -93.6MB). Peak memory consumption was 190.4MB. Max. memory is 16.1GB. [2023-12-02 21:52:17,186 INFO L158 Benchmark]: CodeCheck took 300034.01ms. Allocated memory was 364.9MB in the beginning and 478.2MB in the end (delta: 113.2MB). Free memory was 215.5MB in the beginning and 259.0MB in the end (delta: -43.5MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2023-12-02 21:52:17,188 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 0.22ms. Allocated memory is still 157.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 903.14ms. Allocated memory is still 157.3MB. Free memory was 112.5MB in the beginning and 55.8MB in the end (delta: 56.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 289.61ms. Allocated memory was 157.3MB in the beginning and 213.9MB in the end (delta: 56.6MB). Free memory was 55.4MB in the beginning and 153.1MB in the end (delta: -97.7MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 232.45ms. Allocated memory is still 213.9MB. Free memory was 153.1MB in the beginning and 121.9MB in the end (delta: 31.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * RCFGBuilder took 6519.07ms. Allocated memory was 213.9MB in the beginning and 364.9MB in the end (delta: 151.0MB). Free memory was 121.9MB in the beginning and 215.5MB in the end (delta: -93.6MB). Peak memory consumption was 190.4MB. Max. memory is 16.1GB. * CodeCheck took 300034.01ms. Allocated memory was 364.9MB in the beginning and 478.2MB in the end (delta: 113.2MB). Free memory was 215.5MB in the beginning and 259.0MB in the end (delta: -43.5MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 21:52:17,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/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_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/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_9f3b5280-adda-42c5-8c80-4e602179da27/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 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:52:19,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:52:19,129 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 21:52:19,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:52:19,159 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:52:19,159 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:52:19,160 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:52:19,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:52:19,161 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:52:19,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:52:19,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:52:19,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:52:19,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:52:19,164 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 21:52:19,165 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 21:52:19,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:52:19,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:52:19,166 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:52:19,167 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:52:19,168 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:52:19,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:52:19,169 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:52:19,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:52:19,170 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:52:19,170 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:52:19,171 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:52:19,171 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:52:19,171 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:19,172 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:52:19,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:52:19,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:52:19,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:52:19,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:52:19,174 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:52:19,174 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:19,174 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:52:19,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:52:19,174 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_9f3b5280-adda-42c5-8c80-4e602179da27/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 [2023-12-02 21:52:19,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:52:19,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:52:19,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:52:19,499 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:52:19,500 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:52:19,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2023-12-02 21:52:24,449 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:52:24,755 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:52:24,756 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2023-12-02 21:52:24,778 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/data/b5dbc0fbf/6adbcbb24977405eb1adddb8405552b9/FLAGc1f888e81 [2023-12-02 21:52:24,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/data/b5dbc0fbf/6adbcbb24977405eb1adddb8405552b9 [2023-12-02 21:52:24,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:52:24,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:52:24,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:52:24,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:52:24,804 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:52:24,805 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:52:24" (1/1) ... [2023-12-02 21:52:24,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77dbdf0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:24, skipping insertion in model container [2023-12-02 21:52:24,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:52:24" (1/1) ... [2023-12-02 21:52:24,916 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:52:25,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:52:25,578 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 21:52:25,603 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:52:25,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:52:25,757 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:52:25,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:52:25,893 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:52:25,899 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:52:25,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25 WrapperNode [2023-12-02 21:52:25,900 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:52:25,901 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:52:25,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:52:25,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:52:25,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25" (1/1) ... [2023-12-02 21:52:25,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25" (1/1) ... [2023-12-02 21:52:26,131 INFO L138 Inliner]: procedures = 180, calls = 732, calls flagged for inlining = 508, calls inlined = 1007, statements flattened = 5885 [2023-12-02 21:52:26,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:52:26,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:52:26,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:52:26,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:52:26,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25" (1/1) ... [2023-12-02 21:52:26,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25" (1/1) ... [2023-12-02 21:52:26,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25" (1/1) ... [2023-12-02 21:52:26,163 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25" (1/1) ... [2023-12-02 21:52:26,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25" (1/1) ... [2023-12-02 21:52:26,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25" (1/1) ... [2023-12-02 21:52:26,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25" (1/1) ... [2023-12-02 21:52:26,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25" (1/1) ... [2023-12-02 21:52:26,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:52:26,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:52:26,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:52:26,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:52:26,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:25" (1/1) ... [2023-12-02 21:52:26,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:52:26,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:52:26,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:52:26,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:52:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 21:52:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 21:52:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 21:52:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:52:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 21:52:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 21:52:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 21:52:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 21:52:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:52:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 21:52:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:52:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:52:26,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:52:26,641 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:52:26,643 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:52:45,326 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:52:46,022 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:52:46,022 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-12-02 21:52:46,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:52:46 BoogieIcfgContainer [2023-12-02 21:52:46,026 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:52:46,027 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:52:46,027 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:52:46,037 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:52:46,037 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:52:46" (1/1) ... [2023-12-02 21:52:46,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:52:46,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:46,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 3598 states and 5169 transitions. [2023-12-02 21:52:46,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 5169 transitions. [2023-12-02 21:52:46,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 21:52:46,164 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:46,164 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:46,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:52:46,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:52:46,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:52:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:46,454 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:52:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:46,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:52:46,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:46,534 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 21:52:46,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:52:46,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 3598 states and 5167 transitions. [2023-12-02 21:52:46,599 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 5167 transitions. [2023-12-02 21:52:46,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:52:46,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:46,600 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:46,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:52:46,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:52:46,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:52:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:46,864 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:52:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:46,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:52:46,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:46,976 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:52:46,977 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:52:46,978 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:52:46,991 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 21:52:47,076 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 21:52:47,077 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 21:52:47,099 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 21:52:47,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 21:52:47,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:47,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 3600 states and 5170 transitions. [2023-12-02 21:52:47,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5170 transitions. [2023-12-02 21:52:47,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 21:52:47,663 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:47,663 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:47,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:52:47,664 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:52:47,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:52:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:47,928 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:52:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:48,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:52:48,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:48,039 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 21:52:48,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 21:52:48,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:48,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 3600 states and 5168 transitions. [2023-12-02 21:52:48,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5168 transitions. [2023-12-02 21:52:48,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 21:52:48,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:48,068 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:48,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:52:48,069 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:52:48,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 21:52:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:48,355 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:52:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:48,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:52:48,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:48,446 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 21:52:48,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 21:52:48,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:48,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5164 states to 3600 states and 5164 transitions. [2023-12-02 21:52:48,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5164 transitions. [2023-12-02 21:52:48,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 21:52:48,479 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:48,479 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:48,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:52:48,480 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:52:48,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 21:52:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:48,785 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:52:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:48,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:52:48,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:48,915 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 21:52:48,919 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:52:48,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-02 21:52:48,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:48,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5158 states to 3600 states and 5158 transitions. [2023-12-02 21:52:48,949 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5158 transitions. [2023-12-02 21:52:48,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:52:48,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:48,951 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:48,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:52:48,953 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:52:48,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 21:52:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:49,301 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:52:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:49,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:52:49,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:49,454 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 21:52:49,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 21:52:50,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:52:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:50,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5150 states to 3600 states and 5150 transitions. [2023-12-02 21:52:50,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5150 transitions. [2023-12-02 21:52:50,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 21:52:50,649 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:50,650 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:50,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:52:50,651 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:52:50,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 21:52:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:51,081 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:52:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:51,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:52:51,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:51,437 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 21:52:51,441 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:52:51,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 21:52:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:52,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 3613 states and 5165 transitions. [2023-12-02 21:52:52,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5165 transitions. [2023-12-02 21:52:52,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 21:52:52,500 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:52,501 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:52,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:52:52,503 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:52:52,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 21:52:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:52,860 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:52:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:53,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:52:53,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:53,055 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 21:52:53,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 21:52:53,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:53,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 3613 states and 5163 transitions. [2023-12-02 21:52:53,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5163 transitions. [2023-12-02 21:52:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 21:52:53,083 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:53,083 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:53,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:52:53,084 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:52:53,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 21:52:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:53,500 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:52:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:53,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:52:53,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:53,724 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 21:52:53,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 21:52:53,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:53,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 3613 states and 5161 transitions. [2023-12-02 21:52:53,746 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5161 transitions. [2023-12-02 21:52:53,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 21:52:53,747 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:53,747 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:53,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:52:53,748 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:52:53,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 21:52:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:54,249 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:52:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:54,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:52:54,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:54,631 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 21:52:54,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 21:52:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:54,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 3616 states and 5163 transitions. [2023-12-02 21:52:54,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 5163 transitions. [2023-12-02 21:52:54,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 21:52:54,662 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:54,663 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:54,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:52:54,664 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:52:54,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 21:52:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:55,236 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:52:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:55,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:52:55,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:55,586 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 21:52:55,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 21:53:05,608 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 21:53:05,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:05,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5164 states to 3617 states and 5164 transitions. [2023-12-02 21:53:05,714 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5164 transitions. [2023-12-02 21:53:05,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 21:53:05,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:05,715 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:05,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:05,716 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:05,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 21:53:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:06,356 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:06,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:53:06,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:06,720 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 21:53:06,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 21:53:16,799 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 21:53:16,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 3618 states and 5165 transitions. [2023-12-02 21:53:16,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 5165 transitions. [2023-12-02 21:53:16,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 21:53:16,848 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:16,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:16,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:16,849 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:16,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 21:53:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:17,630 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:17,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:53:17,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:17,948 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:53:17,949 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:53:17,949 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:53:17,951 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 21:53:17,982 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 21:53:17,982 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 21:53:18,041 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 21:53:18,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 21:53:18,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:18,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 3620 states and 5168 transitions. [2023-12-02 21:53:18,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 5168 transitions. [2023-12-02 21:53:18,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 21:53:18,185 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:18,185 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:18,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:18,186 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:18,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 21:53:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:18,839 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:19,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:19,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:19,127 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 21:53:19,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 21:53:19,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:19,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 3619 states and 5163 transitions. [2023-12-02 21:53:19,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5163 transitions. [2023-12-02 21:53:19,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 21:53:19,150 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:19,150 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:19,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:19,151 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:19,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 21:53:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:19,852 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:20,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:20,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:20,154 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 21:53:20,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 21:53:20,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:20,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 3619 states and 5159 transitions. [2023-12-02 21:53:20,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5159 transitions. [2023-12-02 21:53:20,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 21:53:20,180 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:20,180 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:20,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:20,181 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:20,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 21:53:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:20,932 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:21,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:21,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:21,234 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 21:53:21,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 21:53:21,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:21,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 3619 states and 5157 transitions. [2023-12-02 21:53:21,264 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5157 transitions. [2023-12-02 21:53:21,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 21:53:21,265 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:21,265 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:21,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:21,266 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:21,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 21:53:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:22,017 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:22,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:22,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:22,305 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 21:53:22,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 21:53:22,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:22,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 3619 states and 5155 transitions. [2023-12-02 21:53:22,349 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5155 transitions. [2023-12-02 21:53:22,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 21:53:22,349 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:22,350 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:22,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:22,351 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:22,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 21:53:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:23,171 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:23,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:53:23,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:23,763 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 21:53:23,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 21:53:33,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:53:43,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:53:53,366 WARN L539 Checker$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 21:54:03,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:54:07,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:54:10,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 3665 states and 5214 transitions. [2023-12-02 21:54:10,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 5214 transitions. [2023-12-02 21:54:10,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 21:54:10,313 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:10,314 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:10,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:10,315 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:10,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 21:54:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:11,271 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:11,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:54:11,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:11,604 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 21:54:11,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 21:54:11,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:11,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 3665 states and 5212 transitions. [2023-12-02 21:54:11,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 5212 transitions. [2023-12-02 21:54:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 21:54:11,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:11,633 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:11,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:11,634 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:11,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 21:54:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:12,444 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:12,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:54:12,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:12,799 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 21:54:12,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 21:54:12,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 3665 states and 5208 transitions. [2023-12-02 21:54:12,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 5208 transitions. [2023-12-02 21:54:12,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 21:54:12,837 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:12,837 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:12,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:12,838 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:12,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 21:54:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:13,903 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:14,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:54:14,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:14,528 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 21:54:14,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-12-02 21:54:14,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:14,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 3648 states and 5187 transitions. [2023-12-02 21:54:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 5187 transitions. [2023-12-02 21:54:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 21:54:14,562 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:14,562 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:14,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:14,564 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:14,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 21:54:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:15,703 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:16,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:54:16,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:16,276 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 21:54:16,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-02 21:54:16,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:16,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 3651 states and 5189 transitions. [2023-12-02 21:54:16,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 5189 transitions. [2023-12-02 21:54:16,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 21:54:16,311 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:16,311 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:16,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:16,312 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:16,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 21:54:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:17,404 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:17,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:54:17,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:17,738 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 21:54:17,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 21:54:27,786 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 21:54:27,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:27,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 3651 states and 5187 transitions. [2023-12-02 21:54:27,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 5187 transitions. [2023-12-02 21:54:27,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 21:54:27,832 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:27,833 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:27,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:27,834 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:27,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 21:54:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:28,975 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:29,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:54:29,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:29,461 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 21:54:29,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-12-02 21:54:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:29,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 3651 states and 5186 transitions. [2023-12-02 21:54:29,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 5186 transitions. [2023-12-02 21:54:29,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 21:54:29,575 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:29,575 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:29,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:29,576 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:29,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 21:54:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:30,961 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:31,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:54:31,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:31,490 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 21:54:31,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-02 21:54:32,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 3652 states and 5184 transitions. [2023-12-02 21:54:32,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5184 transitions. [2023-12-02 21:54:32,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 21:54:32,262 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:32,263 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:32,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:32,263 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:32,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 21:54:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:33,736 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:34,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:54:34,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:34,284 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 21:54:34,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 21:54:45,078 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 21:54:45,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:45,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 3653 states and 5185 transitions. [2023-12-02 21:54:45,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3653 states and 5185 transitions. [2023-12-02 21:54:45,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 21:54:45,127 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:45,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:45,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:45,128 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:45,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 21:54:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:46,663 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:47,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:54:47,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:47,210 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 21:54:47,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 21:54:58,012 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 21:54:58,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:58,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 3654 states and 5186 transitions. [2023-12-02 21:54:58,071 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5186 transitions. [2023-12-02 21:54:58,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 21:54:58,071 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:58,071 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:58,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:58,072 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:58,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 21:54:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:59,611 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:59,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:54:59,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:00,178 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 21:55:00,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 21:55:09,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:55:09,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:09,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 3655 states and 5187 transitions. [2023-12-02 21:55:09,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 5187 transitions. [2023-12-02 21:55:09,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 21:55:09,774 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:09,774 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:09,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:09,775 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:09,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 21:55:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:11,273 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:11,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:55:11,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:11,863 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 21:55:11,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 21:55:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5188 states to 3656 states and 5188 transitions. [2023-12-02 21:55:12,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 5188 transitions. [2023-12-02 21:55:12,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 21:55:12,768 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:12,769 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:12,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:12,769 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:12,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 21:55:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:14,441 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:14,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:55:14,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:15,049 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 21:55:15,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 21:55:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 3657 states and 5189 transitions. [2023-12-02 21:55:15,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 5189 transitions. [2023-12-02 21:55:15,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 21:55:15,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:15,953 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:15,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:15,954 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:15,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 21:55:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:17,658 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:18,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 21:55:18,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:18,285 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 21:55:18,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 21:55:29,351 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 21:55:29,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:29,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5190 states to 3658 states and 5190 transitions. [2023-12-02 21:55:29,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 5190 transitions. [2023-12-02 21:55:29,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 21:55:29,404 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:29,404 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:29,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:29,405 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:29,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 21:55:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:31,167 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:31,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:55:31,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:31,811 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 21:55:31,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-02 21:55:42,855 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 21:55:42,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:42,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 3659 states and 5191 transitions. [2023-12-02 21:55:42,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3659 states and 5191 transitions. [2023-12-02 21:55:42,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 21:55:42,913 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:42,914 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:42,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:42,914 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:42,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 21:55:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:44,893 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:45,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 21:55:45,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:45,592 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 21:55:45,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-02 21:55:46,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:46,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 3660 states and 5192 transitions. [2023-12-02 21:55:46,746 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 5192 transitions. [2023-12-02 21:55:46,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 21:55:46,747 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:46,747 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:46,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:46,748 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:46,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 21:55:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:48,536 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:48,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:55:48,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:49,284 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 21:55:49,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2023-12-02 21:55:50,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:50,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 3661 states and 5193 transitions. [2023-12-02 21:55:50,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 5193 transitions. [2023-12-02 21:55:50,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 21:55:50,607 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:50,607 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:50,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:50,608 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:50,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 21:55:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:52,595 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:53,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:55:53,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:53,339 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 21:55:53,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 21:56:04,700 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 21:56:04,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:04,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5194 states to 3662 states and 5194 transitions. [2023-12-02 21:56:04,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 5194 transitions. [2023-12-02 21:56:04,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 21:56:04,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:04,753 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:04,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:04,754 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:04,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 21:56:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:06,650 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:07,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:56:07,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:07,327 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 21:56:07,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 21:56:16,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:56:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:16,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 3663 states and 5195 transitions. [2023-12-02 21:56:16,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3663 states and 5195 transitions. [2023-12-02 21:56:16,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 21:56:16,424 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:16,424 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:16,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:16,425 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:16,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 21:56:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:18,479 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:18,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:56:18,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:19,200 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 21:56:19,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 21:56:20,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:20,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 3664 states and 5196 transitions. [2023-12-02 21:56:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 5196 transitions. [2023-12-02 21:56:20,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 21:56:20,531 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:20,531 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:20,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:20,532 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:20,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 21:56:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:22,572 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:22,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:56:23,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:23,315 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 21:56:23,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-02 21:56:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:24,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 3665 states and 5197 transitions. [2023-12-02 21:56:24,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 5197 transitions. [2023-12-02 21:56:24,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 21:56:24,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:24,667 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:24,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:24,668 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:24,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 21:56:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:26,865 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:27,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 21:56:27,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:27,636 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 21:56:27,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 21:56:39,068 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 21:56:39,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:39,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 3666 states and 5198 transitions. [2023-12-02 21:56:39,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 5198 transitions. [2023-12-02 21:56:39,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 21:56:39,133 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:39,134 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:39,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:39,134 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:39,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 21:56:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:41,483 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:41,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 21:56:41,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:42,223 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 21:56:42,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 21:56:53,742 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 21:56:53,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:53,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 3667 states and 5199 transitions. [2023-12-02 21:56:53,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3667 states and 5199 transitions. [2023-12-02 21:56:53,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 21:56:53,786 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:53,786 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:53,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:53,787 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:53,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 21:56:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:56,177 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:56,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 21:56:56,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:56,949 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 21:56:56,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2023-12-02 21:56:58,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:58,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5200 states to 3668 states and 5200 transitions. [2023-12-02 21:56:58,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 5200 transitions. [2023-12-02 21:56:58,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 21:56:58,524 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:58,524 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:58,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:58,525 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:58,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 21:57:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:00,791 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:01,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 21:57:01,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:01,588 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 21:57:01,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 21:57:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:03,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 3669 states and 5201 transitions. [2023-12-02 21:57:03,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 5201 transitions. [2023-12-02 21:57:03,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 21:57:03,188 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:03,188 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:03,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:03,189 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:03,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 21:57:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:05,641 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:06,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 21:57:06,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:06,452 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 21:57:06,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 21:57:18,089 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 21:57:18,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:18,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 3670 states and 5202 transitions. [2023-12-02 21:57:18,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 5202 transitions. [2023-12-02 21:57:18,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 21:57:18,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:18,137 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:18,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:18,138 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:18,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 21:57:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:20,664 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:21,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 21:57:21,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:21,488 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 21:57:21,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-02 21:57:33,247 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 21:57:33,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:33,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 3671 states and 5203 transitions. [2023-12-02 21:57:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3671 states and 5203 transitions. [2023-12-02 21:57:33,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 21:57:33,302 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:33,302 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:33,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:33,303 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:33,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 21:57:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:35,748 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:36,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 21:57:36,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:36,637 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 21:57:36,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 21:57:38,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 3672 states and 5204 transitions. [2023-12-02 21:57:38,471 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5204 transitions. [2023-12-02 21:57:38,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 21:57:38,472 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:38,472 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:38,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:38,472 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:38,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 21:57:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:41,080 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:41,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 21:57:41,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:41,957 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 21:57:41,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 21:57:43,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:43,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 3673 states and 5205 transitions. [2023-12-02 21:57:43,745 INFO L276 IsEmpty]: Start isEmpty. Operand 3673 states and 5205 transitions. [2023-12-02 21:57:43,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 21:57:43,746 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:43,746 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:43,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:43,747 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:43,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 21:57:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:46,533 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:46,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 21:57:46,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 21:57:47,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 21:57:59,301 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 21:57:59,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:59,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5206 states to 3674 states and 5206 transitions. [2023-12-02 21:57:59,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 5206 transitions. [2023-12-02 21:57:59,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 21:57:59,359 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:59,359 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:59,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:59,360 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:59,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 21:58:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:02,095 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:02,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 21:58:02,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 21:58:03,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-02 21:58:14,944 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 21:58:14,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:14,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 3675 states and 5207 transitions. [2023-12-02 21:58:14,996 INFO L276 IsEmpty]: Start isEmpty. Operand 3675 states and 5207 transitions. [2023-12-02 21:58:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 21:58:14,996 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:14,996 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:14,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:14,997 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:14,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 21:58:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:17,855 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:18,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 21:58:18,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:18,765 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 21:58:18,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-02 21:58:20,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:20,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 3676 states and 5208 transitions. [2023-12-02 21:58:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 5208 transitions. [2023-12-02 21:58:20,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 21:58:20,822 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:20,822 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:20,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:20,823 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:20,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 21:58:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:23,470 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:23,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 21:58:23,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:24,369 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 21:58:24,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 21:58:26,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:26,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 3677 states and 5209 transitions. [2023-12-02 21:58:26,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3677 states and 5209 transitions. [2023-12-02 21:58:26,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 21:58:26,518 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:26,518 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:26,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:26,519 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:26,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 21:58:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:29,480 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:29,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 21:58:29,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:30,453 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 21:58:30,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Forceful destruction successful, exit code 0 [2023-12-02 21:58:42,665 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 21:58:42,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:42,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 3678 states and 5210 transitions. [2023-12-02 21:58:42,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 5210 transitions. [2023-12-02 21:58:42,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 21:58:42,731 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:42,731 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:42,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:42,732 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:42,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 21:58:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:45,489 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:45,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 21:58:45,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 21:58:46,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Forceful destruction successful, exit code 0 [2023-12-02 21:58:58,782 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 21:58:58,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:58,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 3679 states and 5211 transitions. [2023-12-02 21:58:58,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 5211 transitions. [2023-12-02 21:58:58,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 21:58:58,841 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:58,841 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:58,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:58,842 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:58,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-02 21:59:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:01,810 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:59:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:02,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 21:59:02,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:59:02,745 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 21:59:02,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-02 21:59:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:59:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 3680 states and 5212 transitions. [2023-12-02 21:59:05,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 5212 transitions. [2023-12-02 21:59:05,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 21:59:05,134 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:59:05,134 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:59:05,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:59:05,135 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:59:05,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-02 21:59:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:08,341 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:59:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:08,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 21:59:08,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:59:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 2 proven. 120 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 21:59:09,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-02 21:59:11,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:59:11,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 3681 states and 5213 transitions. [2023-12-02 21:59:11,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 5213 transitions. [2023-12-02 21:59:11,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 21:59:11,678 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:59:11,678 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:59:11,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:59:11,678 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:59:11,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 21:59:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:14,982 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:59:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:15,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 21:59:15,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:59:16,084 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 2 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 21:59:16,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-02 21:59:28,657 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 21:59:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:59:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 3682 states and 5214 transitions. [2023-12-02 21:59:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 5214 transitions. [2023-12-02 21:59:28,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-02 21:59:28,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:59:28,715 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:59:28,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:59:28,716 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:59:28,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-02 21:59:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:32,097 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:59:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:32,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 21:59:32,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:59:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 2 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 21:59:33,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-02 21:59:45,762 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 21:59:45,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:59:45,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 3683 states and 5215 transitions. [2023-12-02 21:59:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3683 states and 5215 transitions. [2023-12-02 21:59:45,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 21:59:45,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:59:45,815 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:59:45,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:59:45,816 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:59:45,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-02 21:59:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:49,330 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:59:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:49,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 21:59:49,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:59:50,433 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 2 proven. 136 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 21:59:50,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-02 21:59:53,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:59:53,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 3684 states and 5216 transitions. [2023-12-02 21:59:53,040 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 5216 transitions. [2023-12-02 21:59:53,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 21:59:53,040 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:59:53,040 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:59:53,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:59:53,041 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:59:53,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 21:59:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:56,469 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:59:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:56,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 21:59:56,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:59:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 2 proven. 153 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 21:59:57,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-02 22:00:00,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:00:00,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 3685 states and 5217 transitions. [2023-12-02 22:00:00,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5217 transitions. [2023-12-02 22:00:00,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 22:00:00,274 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:00:00,274 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:00,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:00:00,275 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:00:00,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-02 22:00:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:03,991 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:00:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:04,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 22:00:04,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:00:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 2 proven. 171 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 22:00:05,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-02 22:00:18,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:00:18,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:00:18,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 3686 states and 5218 transitions. [2023-12-02 22:00:18,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5218 transitions. [2023-12-02 22:00:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 22:00:18,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:00:18,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:18,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:00:18,090 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:00:18,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-02 22:00:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:21,839 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:00:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:22,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 22:00:22,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:00:23,001 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 2 proven. 190 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 22:00:23,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-02 22:00:35,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:00:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:00:36,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 3687 states and 5219 transitions. [2023-12-02 22:00:36,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5219 transitions. [2023-12-02 22:00:36,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 22:00:36,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:00:36,013 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:36,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:00:36,014 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:00:36,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-02 22:00:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:39,832 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:00:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:40,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 22:00:40,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:00:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 2 proven. 171 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 22:00:40,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2023-12-02 22:00:43,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:00:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5220 states to 3688 states and 5220 transitions. [2023-12-02 22:00:43,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 5220 transitions. [2023-12-02 22:00:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 22:00:43,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:00:43,850 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:43,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:00:43,851 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:00:43,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-02 22:00:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:47,451 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:00:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:47,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 22:00:47,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:00:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 190 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 22:00:48,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2023-12-02 22:00:51,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:00:51,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 3689 states and 5221 transitions. [2023-12-02 22:00:51,710 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5221 transitions. [2023-12-02 22:00:51,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 22:00:51,711 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:00:51,711 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:51,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:00:51,712 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:00:51,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-02 22:00:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:55,452 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:00:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:55,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 22:00:55,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:00:56,716 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 2 proven. 210 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 22:00:56,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2023-12-02 22:01:05,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:01:06,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:01:06,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5222 states to 3690 states and 5222 transitions. [2023-12-02 22:01:06,051 INFO L276 IsEmpty]: Start isEmpty. Operand 3690 states and 5222 transitions. [2023-12-02 22:01:06,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 22:01:06,052 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:01:06,052 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:01:06,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:01:06,053 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:01:06,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-02 22:01:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:01:09,635 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:01:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:01:10,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 22:01:10,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:01:10,880 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 2 proven. 231 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 22:01:10,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3b5280-adda-42c5-8c80-4e602179da27/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0