./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/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_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/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_3e65c01d-dcbe-4c40-8880-00716b003534/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 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:50:13,278 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:50:13,340 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-03 02:50:13,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:50:13,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:50:13,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:50:13,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:50:13,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:50:13,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:50:13,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:50:13,371 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 02:50:13,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:50:13,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 02:50:13,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:50:13,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:50:13,373 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 02:50:13,374 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 02:50:13,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:50:13,375 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:50:13,375 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 02:50:13,375 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 02:50:13,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:50:13,380 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:50:13,380 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:50:13,381 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:50:13,381 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:50:13,381 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:50:13,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:50:13,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:50:13,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:50:13,383 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:50:13,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:50:13,383 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_3e65c01d-dcbe-4c40-8880-00716b003534/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f [2023-12-03 02:50:13,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:50:13,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:50:13,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:50:13,630 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:50:13,630 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:50:13,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2023-12-03 02:50:16,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:50:16,686 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:50:16,687 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2023-12-03 02:50:16,706 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/data/404759ddd/ee9a92aed29a419cafe0caad8e7191ed/FLAG7b542c5de [2023-12-03 02:50:16,718 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/data/404759ddd/ee9a92aed29a419cafe0caad8e7191ed [2023-12-03 02:50:16,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:50:16,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:50:16,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:50:16,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:50:16,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:50:16,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:50:16" (1/1) ... [2023-12-03 02:50:16,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@795f2cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:16, skipping insertion in model container [2023-12-03 02:50:16,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:50:16" (1/1) ... [2023-12-03 02:50:16,789 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:50:17,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:50:17,350 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:50:17,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:50:17,484 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:50:17,489 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:50:17,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17 WrapperNode [2023-12-03 02:50:17,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:50:17,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:50:17,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:50:17,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:50:17,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17" (1/1) ... [2023-12-03 02:50:17,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17" (1/1) ... [2023-12-03 02:50:17,613 INFO L138 Inliner]: procedures = 282, calls = 298, calls flagged for inlining = 24, calls inlined = 36, statements flattened = 1528 [2023-12-03 02:50:17,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:50:17,615 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:50:17,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:50:17,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:50:17,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17" (1/1) ... [2023-12-03 02:50:17,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17" (1/1) ... [2023-12-03 02:50:17,635 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17" (1/1) ... [2023-12-03 02:50:17,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17" (1/1) ... [2023-12-03 02:50:17,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17" (1/1) ... [2023-12-03 02:50:17,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17" (1/1) ... [2023-12-03 02:50:17,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17" (1/1) ... [2023-12-03 02:50:17,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17" (1/1) ... [2023-12-03 02:50:17,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:50:17,774 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:50:17,774 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:50:17,774 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:50:17,775 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:17" (1/1) ... [2023-12-03 02:50:17,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:50:17,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:50:17,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:50:17,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:50:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 02:50:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 02:50:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 02:50:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 02:50:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 02:50:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 02:50:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 02:50:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:50:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 02:50:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:50:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:50:17,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:50:18,051 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:50:18,053 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:50:19,289 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:50:20,661 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:50:20,661 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-12-03 02:50:20,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:50:20 BoogieIcfgContainer [2023-12-03 02:50:20,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:50:20,664 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:50:20,664 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:50:20,674 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:50:20,674 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:50:20" (1/1) ... [2023-12-03 02:50:20,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:50:20,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:50:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 182 states and 288 transitions. [2023-12-03 02:50:20,743 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2023-12-03 02:50:20,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 02:50:20,746 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:50:20,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:50:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:50:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:50:20,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:50:20,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 181 states and 283 transitions. [2023-12-03 02:50:20,931 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 283 transitions. [2023-12-03 02:50:20,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 02:50:20,932 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:50:20,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:50:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:50:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:50:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:50:21,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 183 states and 286 transitions. [2023-12-03 02:50:21,117 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 286 transitions. [2023-12-03 02:50:21,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 02:50:21,118 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:50:21,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:50:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:50:21,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:50:21,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:50:21,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:50:21,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:50:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 182 states and 275 transitions. [2023-12-03 02:50:21,282 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 275 transitions. [2023-12-03 02:50:21,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 02:50:21,283 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:50:21,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:50:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:50:21,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:50:21,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:50:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:50:21,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:50:21,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 182 states and 273 transitions. [2023-12-03 02:50:21,398 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 273 transitions. [2023-12-03 02:50:21,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 02:50:21,399 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:50:21,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:50:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:50:21,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:50:21,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:50:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:50:31,555 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 [] [2023-12-03 02:50:31,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:50:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 182 states and 271 transitions. [2023-12-03 02:50:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 271 transitions. [2023-12-03 02:50:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 02:50:31,590 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:50:31,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:50:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:50:32,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 02:50:32,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:50:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:50:32,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:50:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 179 states and 268 transitions. [2023-12-03 02:50:32,187 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 268 transitions. [2023-12-03 02:50:32,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 02:50:32,188 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:50:32,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:50:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:50:32,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 02:50:32,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:50:32,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:50:42,856 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 [] [2023-12-03 02:50:52,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:51:02,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:51:12,976 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 [] [2023-12-03 02:51:13,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:51:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 197 states and 290 transitions. [2023-12-03 02:51:13,265 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 290 transitions. [2023-12-03 02:51:13,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 02:51:13,266 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:51:13,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:51:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:51:13,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:51:13,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:51:13,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:51:13,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:51:13,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 196 states and 277 transitions. [2023-12-03 02:51:13,546 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 277 transitions. [2023-12-03 02:51:13,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 02:51:13,547 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:51:13,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:51:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:51:13,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:51:13,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:51:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:51:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:51:13,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 196 states and 276 transitions. [2023-12-03 02:51:13,865 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 276 transitions. [2023-12-03 02:51:13,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 02:51:13,866 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:51:13,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:51:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:51:14,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:51:14,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:51:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:51:14,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:51:14,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 190 states and 267 transitions. [2023-12-03 02:51:14,130 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 267 transitions. [2023-12-03 02:51:14,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:51:14,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:51:14,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:51:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:51:14,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:51:14,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:51:14,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:51:24,363 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 [] [2023-12-03 02:51:24,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:51:24,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 190 states and 265 transitions. [2023-12-03 02:51:24,396 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 265 transitions. [2023-12-03 02:51:24,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:51:24,396 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:51:24,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:51:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:51:24,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:51:24,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:51:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:51:35,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:51:45,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:51:55,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:52:05,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:52:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:52:05,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 203 states and 281 transitions. [2023-12-03 02:52:05,384 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 281 transitions. [2023-12-03 02:52:05,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 02:52:05,385 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:52:05,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:52:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:52:05,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 02:52:05,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:52:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:52:15,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:52:25,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:52:35,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:52:45,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:52:45,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:52:45,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 206 states and 283 transitions. [2023-12-03 02:52:45,803 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 283 transitions. [2023-12-03 02:52:45,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 02:52:45,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:52:45,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:52:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:52:46,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:52:46,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:52:46,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:52:56,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:53:06,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:53:16,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:53:26,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:53:26,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:53:26,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 209 states and 285 transitions. [2023-12-03 02:53:26,227 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 285 transitions. [2023-12-03 02:53:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 02:53:26,228 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:53:26,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:53:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:53:26,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:53:26,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:53:26,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:53:26,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:53:26,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 221 states and 301 transitions. [2023-12-03 02:53:26,795 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 301 transitions. [2023-12-03 02:53:26,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 02:53:26,797 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:53:26,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:53:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:53:27,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:53:27,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:53:27,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:53:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:53:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 220 states and 296 transitions. [2023-12-03 02:53:27,100 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 296 transitions. [2023-12-03 02:53:27,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 02:53:27,101 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:53:27,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:53:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:53:27,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:53:27,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:53:27,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:53:38,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:53:48,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:53:58,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:54:08,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:54:08,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:08,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 235 states and 314 transitions. [2023-12-03 02:54:08,366 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 314 transitions. [2023-12-03 02:54:08,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-03 02:54:08,366 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:08,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:54:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:09,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 02:54:09,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:09,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:54:09,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:09,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 236 states and 315 transitions. [2023-12-03 02:54:09,412 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 315 transitions. [2023-12-03 02:54:09,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-03 02:54:09,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:09,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:54:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:16,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-03 02:54:16,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:54:16,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:16,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 237 states and 316 transitions. [2023-12-03 02:54:16,838 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 316 transitions. [2023-12-03 02:54:16,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 02:54:16,838 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:16,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:54:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:19,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 02:54:19,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:19,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:54:19,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:19,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 238 states and 317 transitions. [2023-12-03 02:54:19,599 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 317 transitions. [2023-12-03 02:54:19,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-03 02:54:19,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:19,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:54:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 02:54:29,910 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) [2023-12-03 02:54:29,913 INFO L158 Benchmark]: Toolchain (without parser) took 253190.82ms. Allocated memory was 182.5MB in the beginning and 310.4MB in the end (delta: 127.9MB). Free memory was 127.7MB in the beginning and 237.0MB in the end (delta: -109.4MB). Peak memory consumption was 185.9MB. Max. memory is 16.1GB. [2023-12-03 02:54:29,913 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:54:29,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 767.01ms. Allocated memory is still 182.5MB. Free memory was 127.7MB in the beginning and 84.8MB in the end (delta: 42.9MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-12-03 02:54:29,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.17ms. Allocated memory is still 182.5MB. Free memory was 84.8MB in the beginning and 74.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-03 02:54:29,914 INFO L158 Benchmark]: Boogie Preprocessor took 158.48ms. Allocated memory is still 182.5MB. Free memory was 74.9MB in the beginning and 143.5MB in the end (delta: -68.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2023-12-03 02:54:29,915 INFO L158 Benchmark]: RCFGBuilder took 2889.42ms. Allocated memory was 182.5MB in the beginning and 257.9MB in the end (delta: 75.5MB). Free memory was 143.5MB in the beginning and 101.5MB in the end (delta: 42.0MB). Peak memory consumption was 126.7MB. Max. memory is 16.1GB. [2023-12-03 02:54:29,916 INFO L158 Benchmark]: CodeCheck took 249247.90ms. Allocated memory was 257.9MB in the beginning and 310.4MB in the end (delta: 52.4MB). Free memory was 101.5MB in the beginning and 237.0MB in the end (delta: -135.5MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2023-12-03 02:54:29,919 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 0.21ms. Allocated memory is still 109.1MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 767.01ms. Allocated memory is still 182.5MB. Free memory was 127.7MB in the beginning and 84.8MB in the end (delta: 42.9MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 123.17ms. Allocated memory is still 182.5MB. Free memory was 84.8MB in the beginning and 74.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 158.48ms. Allocated memory is still 182.5MB. Free memory was 74.9MB in the beginning and 143.5MB in the end (delta: -68.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2889.42ms. Allocated memory was 182.5MB in the beginning and 257.9MB in the end (delta: 75.5MB). Free memory was 143.5MB in the beginning and 101.5MB in the end (delta: 42.0MB). Peak memory consumption was 126.7MB. Max. memory is 16.1GB. * CodeCheck took 249247.90ms. Allocated memory was 257.9MB in the beginning and 310.4MB in the end (delta: 52.4MB). Free memory was 101.5MB in the beginning and 237.0MB in the end (delta: -135.5MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 02:54:30,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/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_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/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_3e65c01d-dcbe-4c40-8880-00716b003534/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 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:54:31,795 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:54:31,873 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-03 02:54:31,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:54:31,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:54:31,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:54:31,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:54:31,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:54:31,908 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 02:54:31,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:54:31,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 02:54:31,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:54:31,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:54:31,911 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 02:54:31,911 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 02:54:31,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:54:31,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:54:31,913 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 02:54:31,914 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 02:54:31,914 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 02:54:31,915 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 02:54:31,915 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 02:54:31,916 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:54:31,916 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:54:31,917 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:54:31,917 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:54:31,918 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:54:31,918 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:31,919 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 02:54:31,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:54:31,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:54:31,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:54:31,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:54:31,921 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 02:54:31,921 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:31,921 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 02:54:31,921 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 02:54:31,921 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_3e65c01d-dcbe-4c40-8880-00716b003534/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f [2023-12-03 02:54:32,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:54:32,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:54:32,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:54:32,221 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:54:32,221 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:54:32,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2023-12-03 02:54:35,000 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:54:35,300 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:54:35,300 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2023-12-03 02:54:35,320 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/data/2668f7f5e/a63a2d89882d452fb9e0d2be7e00a63b/FLAG28058b027 [2023-12-03 02:54:35,335 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/data/2668f7f5e/a63a2d89882d452fb9e0d2be7e00a63b [2023-12-03 02:54:35,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:54:35,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:54:35,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:54:35,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:54:35,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:54:35,346 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:54:35" (1/1) ... [2023-12-03 02:54:35,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d67e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:35, skipping insertion in model container [2023-12-03 02:54:35,348 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:54:35" (1/1) ... [2023-12-03 02:54:35,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:54:36,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:54:36,135 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-03 02:54:36,177 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:54:36,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:54:36,251 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:54:36,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:54:36,394 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:54:36,402 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:54:36,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36 WrapperNode [2023-12-03 02:54:36,403 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:54:36,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:54:36,404 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:54:36,404 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:54:36,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36" (1/1) ... [2023-12-03 02:54:36,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36" (1/1) ... [2023-12-03 02:54:36,512 INFO L138 Inliner]: procedures = 285, calls = 298, calls flagged for inlining = 24, calls inlined = 36, statements flattened = 1200 [2023-12-03 02:54:36,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:54:36,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:54:36,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:54:36,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:54:36,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36" (1/1) ... [2023-12-03 02:54:36,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36" (1/1) ... [2023-12-03 02:54:36,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36" (1/1) ... [2023-12-03 02:54:36,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36" (1/1) ... [2023-12-03 02:54:36,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36" (1/1) ... [2023-12-03 02:54:36,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36" (1/1) ... [2023-12-03 02:54:36,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36" (1/1) ... [2023-12-03 02:54:36,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36" (1/1) ... [2023-12-03 02:54:36,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:54:36,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:54:36,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:54:36,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:54:36,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:36" (1/1) ... [2023-12-03 02:54:36,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:54:36,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:54:36,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:54:36,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:54:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-03 02:54:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-03 02:54:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 02:54:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 02:54:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 02:54:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 02:54:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-03 02:54:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 02:54:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 02:54:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:54:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 02:54:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:54:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:54:36,921 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:54:36,924 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:54:50,705 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:54:51,153 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:54:51,153 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-12-03 02:54:51,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:54:51 BoogieIcfgContainer [2023-12-03 02:54:51,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:54:51,156 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:54:51,156 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:54:51,163 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:54:51,164 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:54:51" (1/1) ... [2023-12-03 02:54:51,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:54:51,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:51,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 182 states and 288 transitions. [2023-12-03 02:54:51,223 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2023-12-03 02:54:51,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 02:54:51,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:51,226 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:51,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:54:51,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:54:51,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 02:54:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:51,522 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:54:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:51,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:54:51,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:51,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:54:51,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 02:54:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:51,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 181 states and 283 transitions. [2023-12-03 02:54:51,662 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 283 transitions. [2023-12-03 02:54:51,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 02:54:51,663 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:51,663 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:51,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:54:51,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:54:51,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 02:54:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:51,985 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:54:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:52,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:54:52,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:52,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:54:52,177 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 02:54:52,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 02:54:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:52,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 188 states and 293 transitions. [2023-12-03 02:54:52,580 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 293 transitions. [2023-12-03 02:54:52,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 02:54:52,581 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:52,582 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:52,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:54:52,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:54:52,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 02:54:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:52,848 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:54:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:52,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:54:52,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:54:52,923 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 02:54:52,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 02:54:52,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:52,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 187 states and 288 transitions. [2023-12-03 02:54:52,931 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 288 transitions. [2023-12-03 02:54:52,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 02:54:52,932 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:52,933 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:52,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:54:52,934 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:54:52,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 02:54:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:53,264 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:54:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:53,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:54:53,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:53,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2023-12-03 02:54:53,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 02:54:53,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2023-12-03 02:54:53,392 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 02:54:53,393 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 02:54:53,394 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 02:54:53,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 39 [2023-12-03 02:54:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:54:53,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-03 02:54:53,583 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Stream closed [2023-12-03 02:54:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:54,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 188 states and 288 transitions. [2023-12-03 02:54:54,449 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 288 transitions. [2023-12-03 02:54:54,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 02:54:54,451 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:54,451 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:54,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:54:54,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:54:54,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 02:54:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:54,812 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:54:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:54,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:54:54,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:54,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:54:54,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 02:54:54,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:54,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 187 states and 277 transitions. [2023-12-03 02:54:54,960 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 277 transitions. [2023-12-03 02:54:54,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 02:54:54,961 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:54,961 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:54,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:54:54,962 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:54:54,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 02:54:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:55,318 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:54:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:55,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:54:55,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:55,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:54:55,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-03 02:54:55,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:55,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 187 states and 275 transitions. [2023-12-03 02:54:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 275 transitions. [2023-12-03 02:54:55,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 02:54:55,465 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:55,465 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:55,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:54:55,467 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:54:55,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 02:54:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:55,826 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:54:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:56,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:54:56,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:56,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:54:56,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 02:54:56,024 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 02:54:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:56,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 187 states and 273 transitions. [2023-12-03 02:54:56,048 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 273 transitions. [2023-12-03 02:54:56,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 02:54:56,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:56,049 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:56,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:54:56,050 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:54:56,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 02:54:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:56,530 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:54:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:56,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 02:54:56,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:54:56,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-03 02:54:58,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:58,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 203 states and 295 transitions. [2023-12-03 02:54:58,865 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 295 transitions. [2023-12-03 02:54:58,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 02:54:58,867 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:58,867 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:58,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:54:58,868 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:54:58,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 02:54:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:59,160 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:54:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:59,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:54:59,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:54:59,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:54:59,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-03 02:54:59,367 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Exception during sending of exit command (exit): Stream closed [2023-12-03 02:54:59,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:59,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 203 states and 293 transitions. [2023-12-03 02:54:59,374 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 293 transitions. [2023-12-03 02:54:59,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 02:54:59,375 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:59,375 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:59,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:54:59,377 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:54:59,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 02:54:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:59,771 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:54:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:59,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 02:54:59,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:55:00,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-12-03 02:55:00,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 206 states and 295 transitions. [2023-12-03 02:55:00,041 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 295 transitions. [2023-12-03 02:55:00,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 02:55:00,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:00,042 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:00,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:00,043 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:00,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 02:55:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:00,503 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:00,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:55:00,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:00,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:55:00,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-03 02:55:01,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:01,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 205 states and 282 transitions. [2023-12-03 02:55:01,659 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 282 transitions. [2023-12-03 02:55:01,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 02:55:01,660 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:01,660 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:01,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:01,661 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:01,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 02:55:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:02,121 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:02,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:55:02,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:55:02,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-03 02:55:09,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:55:16,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:55:21,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:55:30,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:55:30,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:30,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 209 states and 285 transitions. [2023-12-03 02:55:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 285 transitions. [2023-12-03 02:55:30,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:55:30,546 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:30,546 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:30,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:30,547 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:30,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-03 02:55:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:31,014 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:31,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:55:31,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:31,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:55:31,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-03 02:55:31,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:31,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 220 states and 297 transitions. [2023-12-03 02:55:31,865 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 297 transitions. [2023-12-03 02:55:31,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 02:55:31,866 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:31,866 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:31,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:31,867 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:31,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-03 02:55:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:32,415 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:32,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:55:32,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:32,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:55:32,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-03 02:55:32,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:32,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 214 states and 288 transitions. [2023-12-03 02:55:32,760 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 288 transitions. [2023-12-03 02:55:32,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 02:55:32,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:32,760 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:32,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:32,761 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:32,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-03 02:55:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:33,251 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:33,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:55:33,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:55:33,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-03 02:55:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:33,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 217 states and 290 transitions. [2023-12-03 02:55:33,689 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 290 transitions. [2023-12-03 02:55:33,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-03 02:55:33,689 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:33,689 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:33,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:33,690 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:33,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-03 02:55:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:34,309 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:34,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:55:34,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:55:34,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-03 02:55:34,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:34,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 218 states and 291 transitions. [2023-12-03 02:55:34,890 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 291 transitions. [2023-12-03 02:55:34,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 02:55:34,891 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:34,891 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:34,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:34,892 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:34,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-03 02:55:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:35,563 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:35,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:55:35,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:35,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:55:35,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-03 02:55:46,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:55:46,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:46,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 219 states and 292 transitions. [2023-12-03 02:55:46,447 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 292 transitions. [2023-12-03 02:55:46,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 02:55:46,447 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:46,448 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:46,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:46,448 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:46,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-03 02:55:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:47,116 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:47,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:55:47,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:47,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 02:55:47,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-03 02:55:52,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:55:54,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:55:54,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 232 states and 309 transitions. [2023-12-03 02:55:54,375 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 309 transitions. [2023-12-03 02:55:54,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-03 02:55:54,376 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:54,376 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:54,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:54,377 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:54,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-03 02:55:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:55,237 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:55,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:55:55,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 02:55:55,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-03 02:55:55,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 231 states and 304 transitions. [2023-12-03 02:55:55,809 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 304 transitions. [2023-12-03 02:55:55,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 02:55:55,810 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:55,810 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:55,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:55,811 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:55,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-03 02:55:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:56,840 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:57,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:55:57,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:57,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:55:57,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-03 02:55:57,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 232 states and 305 transitions. [2023-12-03 02:55:57,966 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 305 transitions. [2023-12-03 02:55:57,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-03 02:55:57,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:57,967 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:57,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:57,968 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:57,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-03 02:55:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:59,340 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:59,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:55:59,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:55:59,876 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 02:55:59,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-03 02:56:09,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:56:09,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:56:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 233 states and 306 transitions. [2023-12-03 02:56:09,822 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 306 transitions. [2023-12-03 02:56:09,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-03 02:56:09,823 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:56:09,823 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:56:09,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:56:09,824 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:56:09,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-03 02:56:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:11,068 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:56:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:11,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 02:56:11,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:56:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 02:56:11,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-03 02:56:22,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:56:22,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:56:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 234 states and 307 transitions. [2023-12-03 02:56:22,395 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 307 transitions. [2023-12-03 02:56:22,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 02:56:22,395 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:56:22,396 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:56:22,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:56:22,397 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:56:22,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-03 02:56:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:23,703 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:56:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:24,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 02:56:24,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:56:24,272 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 02:56:24,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-03 02:56:35,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:56:35,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:56:35,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 235 states and 308 transitions. [2023-12-03 02:56:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 308 transitions. [2023-12-03 02:56:35,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-03 02:56:35,069 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:56:35,069 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:56:35,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:56:35,070 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:56:35,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-03 02:56:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:36,410 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:56:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:36,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 02:56:36,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:56:37,012 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 02:56:37,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-12-03 02:56:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:56:37,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 236 states and 309 transitions. [2023-12-03 02:56:37,749 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 309 transitions. [2023-12-03 02:56:37,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-03 02:56:37,749 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:56:37,749 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:56:37,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:56:37,750 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:56:37,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-03 02:56:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:39,133 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:56:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:39,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 02:56:39,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:56:39,770 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 02:56:39,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-03 02:56:40,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:56:40,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 237 states and 310 transitions. [2023-12-03 02:56:40,539 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 310 transitions. [2023-12-03 02:56:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-03 02:56:40,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:56:40,540 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:56:40,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:56:40,541 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:56:40,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-03 02:56:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:42,023 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:56:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:42,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 02:56:42,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:56:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 02:56:42,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-03 02:56:53,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:56:53,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:56:53,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 238 states and 311 transitions. [2023-12-03 02:56:53,534 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 311 transitions. [2023-12-03 02:56:53,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-03 02:56:53,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:56:53,535 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:56:53,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:56:53,535 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:56:53,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-03 02:56:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:55,062 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:56:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:56:55,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:56:55,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:56:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 02:56:55,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2023-12-03 02:57:04,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:57:04,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:57:04,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 239 states and 312 transitions. [2023-12-03 02:57:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 312 transitions. [2023-12-03 02:57:04,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-03 02:57:04,531 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:57:04,531 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:57:04,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:57:04,532 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:57:04,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-03 02:57:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:06,161 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:57:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:06,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 02:57:06,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:57:06,840 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 02:57:06,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-03 02:57:07,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:57:07,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 240 states and 313 transitions. [2023-12-03 02:57:07,945 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 313 transitions. [2023-12-03 02:57:07,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-03 02:57:07,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:57:07,945 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:57:07,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:57:07,946 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:57:07,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-03 02:57:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:09,550 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:57:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:09,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:57:09,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:57:10,220 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 02:57:10,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-03 02:57:11,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:57:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 241 states and 314 transitions. [2023-12-03 02:57:11,325 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 314 transitions. [2023-12-03 02:57:11,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 02:57:11,325 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:57:11,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:57:11,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:57:11,326 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:57:11,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-03 02:57:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:12,931 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:57:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:13,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 02:57:13,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:57:13,760 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 02:57:13,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-03 02:57:19,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:57:19,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:57:19,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 242 states and 315 transitions. [2023-12-03 02:57:19,090 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 315 transitions. [2023-12-03 02:57:19,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 02:57:19,091 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:57:19,091 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:57:19,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:57:19,092 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:57:19,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-03 02:57:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:20,869 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:57:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:21,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 02:57:21,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:57:21,640 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 02:57:21,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2023-12-03 02:57:32,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:57:32,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:57:32,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 243 states and 316 transitions. [2023-12-03 02:57:32,882 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 316 transitions. [2023-12-03 02:57:32,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-03 02:57:32,883 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:57:32,883 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:57:32,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:57:32,883 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:57:32,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-03 02:57:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:34,617 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:57:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:35,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 02:57:35,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:57:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 02:57:35,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-03 02:57:36,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:57:36,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 244 states and 317 transitions. [2023-12-03 02:57:36,666 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 317 transitions. [2023-12-03 02:57:36,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-03 02:57:36,666 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:57:36,666 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:57:36,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:57:36,667 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:57:36,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-03 02:57:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:38,576 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:57:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:38,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 02:57:38,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:57:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 02:57:39,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-03 02:57:40,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:57:40,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 245 states and 318 transitions. [2023-12-03 02:57:40,686 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 318 transitions. [2023-12-03 02:57:40,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 02:57:40,686 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:57:40,687 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:57:40,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:57:40,688 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:57:40,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-03 02:57:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:42,686 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:57:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:43,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 02:57:43,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:57:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 02:57:43,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-03 02:57:54,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:57:54,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:57:54,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 246 states and 319 transitions. [2023-12-03 02:57:54,932 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2023-12-03 02:57:54,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-03 02:57:54,933 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:57:54,933 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:57:54,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:57:54,934 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:57:54,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-03 02:57:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:56,874 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:57:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:57:57,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 02:57:57,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:57:57,709 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 02:57:57,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-03 02:58:05,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:58:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:58:05,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 247 states and 320 transitions. [2023-12-03 02:58:05,666 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 320 transitions. [2023-12-03 02:58:05,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-03 02:58:05,666 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:58:05,666 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:58:05,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:58:05,667 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:58:05,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-03 02:58:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:07,653 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:58:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:08,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 02:58:08,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:58:08,582 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 02:58:08,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-03 02:58:10,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:58:10,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 248 states and 321 transitions. [2023-12-03 02:58:10,045 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 321 transitions. [2023-12-03 02:58:10,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 02:58:10,045 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:58:10,045 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:58:10,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:58:10,046 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:58:10,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-03 02:58:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:12,337 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:58:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:12,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 02:58:12,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:58:13,232 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 02:58:13,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-03 02:58:14,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:58:14,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 249 states and 322 transitions. [2023-12-03 02:58:14,957 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 322 transitions. [2023-12-03 02:58:14,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-03 02:58:14,958 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:58:14,958 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:58:14,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:58:14,959 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:58:14,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-03 02:58:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:17,328 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:58:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:17,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 02:58:17,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:58:18,316 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 02:58:18,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-03 02:58:30,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:58:30,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:58:30,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 250 states and 323 transitions. [2023-12-03 02:58:30,059 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 323 transitions. [2023-12-03 02:58:30,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-03 02:58:30,059 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:58:30,059 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:58:30,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:58:30,060 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:58:30,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-03 02:58:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:32,301 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:58:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:32,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 02:58:32,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:58:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 02:58:33,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-03 02:58:44,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:58:44,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:58:44,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 251 states and 324 transitions. [2023-12-03 02:58:44,965 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 324 transitions. [2023-12-03 02:58:44,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-03 02:58:44,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:58:44,965 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:58:44,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:58:44,966 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:58:44,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-03 02:58:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:47,333 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:58:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:47,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 02:58:47,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:58:48,321 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 02:58:48,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2023-12-03 02:58:50,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:58:50,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 252 states and 325 transitions. [2023-12-03 02:58:50,328 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 325 transitions. [2023-12-03 02:58:50,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-03 02:58:50,328 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:58:50,328 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:58:50,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:58:50,329 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:58:50,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-03 02:58:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:52,808 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:58:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:53,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 02:58:53,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:58:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 02:58:53,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-03 02:58:55,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:58:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 253 states and 326 transitions. [2023-12-03 02:58:55,832 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 326 transitions. [2023-12-03 02:58:55,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-03 02:58:55,833 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:58:55,833 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:58:55,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:58:55,834 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:58:55,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-03 02:58:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:58,289 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:58:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:58:58,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 02:58:58,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:58:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 02:58:59,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-03 02:59:08,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:59:08,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:59:08,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 254 states and 327 transitions. [2023-12-03 02:59:08,379 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 327 transitions. [2023-12-03 02:59:08,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-03 02:59:08,380 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:59:08,380 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:59:08,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:59:08,380 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:59:08,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-03 02:59:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:59:10,882 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:59:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:59:11,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 02:59:11,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:59:11,841 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 02:59:11,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Forceful destruction successful, exit code 0 [2023-12-03 02:59:24,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:59:24,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:59:24,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 255 states and 328 transitions. [2023-12-03 02:59:24,058 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 328 transitions. [2023-12-03 02:59:24,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-03 02:59:24,058 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:59:24,058 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:59:24,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:59:24,059 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:59:24,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-03 02:59:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:59:26,560 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:59:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:59:27,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 02:59:27,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:59:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 02:59:27,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-03 02:59:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:59:29,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 256 states and 329 transitions. [2023-12-03 02:59:29,951 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 329 transitions. [2023-12-03 02:59:29,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-03 02:59:29,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:59:29,951 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:59:29,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:59:29,952 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:59:29,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-03 02:59:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:59:32,646 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:59:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:59:33,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 02:59:33,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:59:33,651 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 02:59:33,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-03 02:59:35,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:59:35,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 257 states and 330 transitions. [2023-12-03 02:59:35,700 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 330 transitions. [2023-12-03 02:59:35,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-03 02:59:35,700 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:59:35,700 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:59:35,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:59:35,701 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:59:35,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-03 02:59:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:59:38,575 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:59:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:59:39,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 02:59:39,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:59:39,612 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 02:59:39,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Forceful destruction successful, exit code 0 [2023-12-03 02:59:52,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:59:52,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:59:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 258 states and 331 transitions. [2023-12-03 02:59:52,233 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 331 transitions. [2023-12-03 02:59:52,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-03 02:59:52,233 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:59:52,233 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:59:52,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:59:52,234 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:59:52,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-03 02:59:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:59:55,269 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:59:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:59:55,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 02:59:55,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:59:56,421 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 02:59:56,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-03 03:00:08,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:00:09,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:00:09,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 259 states and 332 transitions. [2023-12-03 03:00:09,028 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 332 transitions. [2023-12-03 03:00:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-03 03:00:09,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:00:09,028 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:00:09,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:00:09,029 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:00:09,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-03 03:00:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:00:11,857 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:00:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:00:12,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 03:00:12,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:00:13,009 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 03:00:13,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-03 03:00:15,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:00:15,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 260 states and 333 transitions. [2023-12-03 03:00:15,423 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2023-12-03 03:00:15,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-03 03:00:15,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:00:15,423 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:00:15,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:00:15,424 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:00:15,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-03 03:00:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:00:18,525 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:00:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:00:19,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 03:00:19,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:00:19,667 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 03:00:19,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-03 03:00:22,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:00:22,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 261 states and 334 transitions. [2023-12-03 03:00:22,166 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 334 transitions. [2023-12-03 03:00:22,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-03 03:00:22,166 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:00:22,166 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:00:22,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:00:22,167 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:00:22,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-03 03:00:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:00:25,334 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:00:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:00:25,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 03:00:25,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:00:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 03:00:26,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-03 03:00:39,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:00:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:00:39,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 262 states and 335 transitions. [2023-12-03 03:00:39,053 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 335 transitions. [2023-12-03 03:00:39,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-03 03:00:39,054 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:00:39,054 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:00:39,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:00:39,055 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:00:39,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-03 03:00:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:00:42,259 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:00:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:00:42,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 03:00:42,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:00:43,429 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 03:00:43,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-03 03:00:50,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:00:50,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:00:50,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 263 states and 336 transitions. [2023-12-03 03:00:50,454 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 336 transitions. [2023-12-03 03:00:50,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-03 03:00:50,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:00:50,454 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:00:50,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:00:50,455 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:00:50,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-03 03:00:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:00:53,354 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:00:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:00:53,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 03:00:53,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:00:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-03 03:00:54,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-03 03:00:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:00:57,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 264 states and 337 transitions. [2023-12-03 03:00:57,084 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 337 transitions. [2023-12-03 03:00:57,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-03 03:00:57,084 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:00:57,084 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:00:57,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:00:57,085 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:00:57,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-03 03:01:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:00,332 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:01:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:00,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 03:01:00,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:01:01,617 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-03 03:01:01,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-03 03:01:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:01:04,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 265 states and 338 transitions. [2023-12-03 03:01:04,520 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 338 transitions. [2023-12-03 03:01:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-03 03:01:04,521 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:01:04,521 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:01:04,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:01:04,522 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:01:04,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-03 03:01:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:07,825 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:01:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:08,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 03:01:08,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:01:09,141 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-03 03:01:09,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-03 03:01:19,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:01:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:01:19,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 266 states and 339 transitions. [2023-12-03 03:01:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 339 transitions. [2023-12-03 03:01:19,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-03 03:01:19,981 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:01:19,981 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:01:19,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:01:19,981 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:01:19,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-03 03:01:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:23,489 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:01:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:23,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 03:01:23,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:01:24,684 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-03 03:01:24,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-03 03:01:37,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:01:37,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:01:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 267 states and 340 transitions. [2023-12-03 03:01:37,956 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 340 transitions. [2023-12-03 03:01:37,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-03 03:01:37,957 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:01:37,957 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:01:37,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:01:37,958 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:01:37,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-03 03:01:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:41,654 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:01:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:42,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 03:01:42,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:01:43,102 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-03 03:01:43,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-03 03:01:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:01:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 268 states and 341 transitions. [2023-12-03 03:01:46,159 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 341 transitions. [2023-12-03 03:01:46,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-03 03:01:46,159 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:01:46,159 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:01:46,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:01:46,160 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:01:46,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-03 03:01:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:49,632 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:01:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:50,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 03:01:50,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:01:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-03 03:01:50,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-03 03:01:54,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:01:54,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 269 states and 342 transitions. [2023-12-03 03:01:54,051 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 342 transitions. [2023-12-03 03:01:54,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-03 03:01:54,051 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:01:54,052 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:01:54,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:01:54,052 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:01:54,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-03 03:01:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:57,590 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:01:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:01:58,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-03 03:01:58,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:01:58,993 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-03 03:01:59,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Forceful destruction successful, exit code 0 [2023-12-03 03:02:05,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:02:05,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:02:05,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 270 states and 343 transitions. [2023-12-03 03:02:05,962 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 343 transitions. [2023-12-03 03:02:05,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-03 03:02:05,962 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:02:05,963 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:02:05,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:02:05,963 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:02:05,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-03 03:02:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:02:09,814 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:02:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:02:10,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 03:02:10,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:02:11,315 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-03 03:02:11,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-03 03:02:24,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:02:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:02:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 271 states and 344 transitions. [2023-12-03 03:02:24,664 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 344 transitions. [2023-12-03 03:02:24,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-03 03:02:24,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:02:24,665 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:02:24,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:02:24,666 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:02:24,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-03 03:02:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:02:28,629 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:02:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:02:29,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-03 03:02:29,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:02:30,089 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-03 03:02:30,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Forceful destruction successful, exit code 0 [2023-12-03 03:02:33,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:02:33,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 272 states and 345 transitions. [2023-12-03 03:02:33,372 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2023-12-03 03:02:33,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-03 03:02:33,372 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:02:33,373 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:02:33,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:02:33,373 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:02:33,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-03 03:02:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:02:37,594 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:02:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:02:38,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 03:02:38,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:02:39,031 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-03 03:02:39,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-03 03:02:42,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:02:42,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 273 states and 346 transitions. [2023-12-03 03:02:42,677 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 346 transitions. [2023-12-03 03:02:42,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-03 03:02:42,677 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:02:42,677 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:02:42,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:02:42,678 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:02:42,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-03 03:02:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:02:46,671 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:02:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:02:47,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 03:02:47,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:02:48,111 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-03 03:02:48,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-12-03 03:03:01,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:03:01,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:03:01,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 274 states and 347 transitions. [2023-12-03 03:03:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 347 transitions. [2023-12-03 03:03:01,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-03 03:03:01,539 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:03:01,539 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:03:01,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:03:01,540 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:03:01,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-03 03:03:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:03:05,607 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:03:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:03:06,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 03:03:06,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:03:07,203 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-03 03:03:07,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2023-12-03 03:03:20,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:03:20,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:03:20,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 275 states and 348 transitions. [2023-12-03 03:03:20,992 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 348 transitions. [2023-12-03 03:03:20,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-03 03:03:20,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:03:20,993 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:03:20,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:03:20,994 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:03:20,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-03 03:03:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:03:25,322 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:03:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:03:25,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 03:03:25,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:03:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 03:03:26,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-12-03 03:03:30,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:03:30,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 276 states and 349 transitions. [2023-12-03 03:03:30,692 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 349 transitions. [2023-12-03 03:03:30,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-03 03:03:30,692 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:03:30,693 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:03:30,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:03:30,693 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:03:30,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-12-03 03:03:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:03:34,646 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:03:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:03:35,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 03:03:35,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:03:36,236 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 03:03:36,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2023-12-03 03:03:40,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:03:40,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 277 states and 350 transitions. [2023-12-03 03:03:40,267 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 350 transitions. [2023-12-03 03:03:40,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-03 03:03:40,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:03:40,267 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:03:40,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:03:40,268 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:03:40,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-12-03 03:03:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:03:44,844 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:03:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:03:45,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 03:03:45,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:03:46,409 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 03:03:46,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2023-12-03 03:04:00,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:04:00,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:04:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 278 states and 351 transitions. [2023-12-03 03:04:00,242 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 351 transitions. [2023-12-03 03:04:00,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-03 03:04:00,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:04:00,242 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:04:00,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:04:00,243 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:04:00,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-12-03 03:04:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:04:04,684 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:04:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:04:05,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 03:04:05,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:04:06,331 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 03:04:06,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2023-12-03 03:04:17,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:04:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:04:17,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 279 states and 352 transitions. [2023-12-03 03:04:17,960 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 352 transitions. [2023-12-03 03:04:17,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-03 03:04:17,960 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:04:17,960 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:04:17,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:04:17,961 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:04:17,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2023-12-03 03:04:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:04:22,704 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:04:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:04:23,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 03:04:23,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:04:24,353 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-03 03:04:24,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Ended with exit code 0 [2023-12-03 03:04:28,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:04:28,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 280 states and 353 transitions. [2023-12-03 03:04:28,640 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 353 transitions. [2023-12-03 03:04:28,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-03 03:04:28,640 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:04:28,640 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:04:28,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:04:28,641 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:04:28,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e65c01d-dcbe-4c40-8880-00716b003534/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process