./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_loop-invariants/recursified_bin-suffix-5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/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_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_loop-invariants/recursified_bin-suffix-5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c4cbc544f6c6468ca141cfd9a471f76e948b2a9f8c6c56806d9220760159bde9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:06:34,505 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:06:34,578 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 01:06:34,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:06:34,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:06:34,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:06:34,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:06:34,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:06:34,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:06:34,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:06:34,608 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:06:34,608 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:06:34,609 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:06:34,609 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:06:34,610 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:06:34,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:06:34,611 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:06:34,611 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:06:34,612 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:06:34,612 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:06:34,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:06:34,614 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:06:34,614 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:06:34,614 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:06:34,615 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:06:34,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:06:34,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:06:34,616 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:06:34,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:06:34,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:06:34,617 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:06:34,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:06:34,618 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:06:34,618 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_629268a6-3967-472e-aee0-a36d0d86f584/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4cbc544f6c6468ca141cfd9a471f76e948b2a9f8c6c56806d9220760159bde9 [2023-12-03 01:06:34,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:06:34,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:06:34,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:06:34,889 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:06:34,889 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:06:34,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/recursified_loop-invariants/recursified_bin-suffix-5.c [2023-12-03 01:06:37,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:06:37,836 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:06:37,836 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/sv-benchmarks/c/recursified_loop-invariants/recursified_bin-suffix-5.c [2023-12-03 01:06:37,843 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/data/32d3b41d6/4f874d3ead564939b913ab13a0bf5c05/FLAGca8eb33fc [2023-12-03 01:06:37,857 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/data/32d3b41d6/4f874d3ead564939b913ab13a0bf5c05 [2023-12-03 01:06:37,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:06:37,861 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:06:37,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:06:37,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:06:37,867 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:06:37,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:06:37" (1/1) ... [2023-12-03 01:06:37,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9ca239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:37, skipping insertion in model container [2023-12-03 01:06:37,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:06:37" (1/1) ... [2023-12-03 01:06:37,888 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:06:38,030 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/sv-benchmarks/c/recursified_loop-invariants/recursified_bin-suffix-5.c[986,999] [2023-12-03 01:06:38,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:06:38,053 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:06:38,065 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/sv-benchmarks/c/recursified_loop-invariants/recursified_bin-suffix-5.c[986,999] [2023-12-03 01:06:38,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:06:38,083 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:06:38,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38 WrapperNode [2023-12-03 01:06:38,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:06:38,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:06:38,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:06:38,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:06:38,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,116 INFO L138 Inliner]: procedures = 15, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2023-12-03 01:06:38,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:06:38,117 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:06:38,117 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:06:38,117 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:06:38,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,128 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,128 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:06:38,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:06:38,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:06:38,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:06:38,140 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:06:38,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:06:38,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:06:38,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:06:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:06:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_13_to_14_0 [2023-12-03 01:06:38,214 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_13_to_14_0 [2023-12-03 01:06:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:06:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:06:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 01:06:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:06:38,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:06:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 01:06:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:06:38,288 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:06:38,290 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:06:38,400 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:06:38,456 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:06:38,456 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:06:38,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:06:38 BoogieIcfgContainer [2023-12-03 01:06:38,457 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:06:38,458 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:06:38,458 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:06:38,467 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:06:38,467 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:06:38" (1/1) ... [2023-12-03 01:06:38,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:06:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:06:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-12-03 01:06:38,531 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-12-03 01:06:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:06:38,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:06:38,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:06:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:38,999 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 01:06:39,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:06:39,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 22 transitions. [2023-12-03 01:06:39,103 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-12-03 01:06:39,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 01:06:39,104 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:06:39,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:06:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:06:39,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:06:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:06:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:06:39,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:06:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:06:39,208 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 01:06:39,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:06:39 ImpRootNode [2023-12-03 01:06:39,229 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:06:39,230 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:06:39,230 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:06:39,230 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:06:39,231 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:06:38" (3/4) ... [2023-12-03 01:06:39,233 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 01:06:39,234 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:06:39,235 INFO L158 Benchmark]: Toolchain (without parser) took 1374.01ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 71.5MB in the end (delta: 32.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-12-03 01:06:39,235 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:06:39,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.97ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 93.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 01:06:39,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.39ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 92.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:06:39,237 INFO L158 Benchmark]: Boogie Preprocessor took 21.25ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 91.8MB in the end (delta: 800.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:06:39,238 INFO L158 Benchmark]: RCFGBuilder took 318.59ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 78.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 01:06:39,239 INFO L158 Benchmark]: CodeCheck took 771.25ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 71.9MB in the end (delta: 6.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 01:06:39,239 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 142.6MB. Free memory was 71.9MB in the beginning and 71.5MB in the end (delta: 429.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:06:39,243 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 11 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 56. Possible FailurePath: [L54] unsigned int x = 5; VAL [x={16707:0}] [L55] CALL func_to_recursive_line_13_to_14_0(&x) VAL [x={16707:0}] [L40] COND TRUE __VERIFIER_nondet_int() [L43] EXPR \read(*x) [L43] *x += 8 [L45] CALL func_to_recursive_line_13_to_14_0(x) VAL [x={16707:0}] [L40] COND FALSE !(__VERIFIER_nondet_int()) [L45] RET func_to_recursive_line_13_to_14_0(x) VAL [x={16707:0}, x={16707:0}] [L55] RET func_to_recursive_line_13_to_14_0(&x) VAL [x={16707:0}] [L56] EXPR \read(x) [L56] EXPR x & 5 [L56] CALL __VERIFIER_assert((x & 5) == 5) [L23] COND TRUE !cond VAL [\old(cond)=0, cond=0] [L27] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.97ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 93.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.39ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 92.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.25ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 91.8MB in the end (delta: 800.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 318.59ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 78.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 771.25ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 71.9MB in the end (delta: 6.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 142.6MB. Free memory was 71.9MB in the beginning and 71.5MB in the end (delta: 429.8kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 01:06:39,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/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_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/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_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_loop-invariants/recursified_bin-suffix-5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c4cbc544f6c6468ca141cfd9a471f76e948b2a9f8c6c56806d9220760159bde9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:06:41,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:06:41,203 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-03 01:06:41,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:06:41,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:06:41,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:06:41,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:06:41,236 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:06:41,237 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:06:41,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:06:41,238 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:06:41,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:06:41,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:06:41,240 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:06:41,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:06:41,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:06:41,243 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:06:41,243 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:06:41,244 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:06:41,244 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:06:41,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:06:41,247 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:06:41,248 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:06:41,248 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:06:41,248 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:06:41,249 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:06:41,249 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:06:41,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:06:41,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:06:41,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:06:41,251 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:06:41,251 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:06:41,251 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:06:41,252 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:06:41,252 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:06:41,252 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:06:41,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:06:41,253 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_629268a6-3967-472e-aee0-a36d0d86f584/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4cbc544f6c6468ca141cfd9a471f76e948b2a9f8c6c56806d9220760159bde9 [2023-12-03 01:06:41,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:06:41,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:06:41,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:06:41,568 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:06:41,568 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:06:41,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/recursified_loop-invariants/recursified_bin-suffix-5.c [2023-12-03 01:06:44,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:06:44,650 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:06:44,651 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/sv-benchmarks/c/recursified_loop-invariants/recursified_bin-suffix-5.c [2023-12-03 01:06:44,658 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/data/cea6419fa/d22c06d260b448ea9b3920f898107f3e/FLAG56eeda735 [2023-12-03 01:06:44,675 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/data/cea6419fa/d22c06d260b448ea9b3920f898107f3e [2023-12-03 01:06:44,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:06:44,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:06:44,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:06:44,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:06:44,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:06:44,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161e528d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44, skipping insertion in model container [2023-12-03 01:06:44,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,711 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:06:44,866 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/sv-benchmarks/c/recursified_loop-invariants/recursified_bin-suffix-5.c[986,999] [2023-12-03 01:06:44,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:06:44,893 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:06:44,906 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/sv-benchmarks/c/recursified_loop-invariants/recursified_bin-suffix-5.c[986,999] [2023-12-03 01:06:44,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:06:44,927 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:06:44,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44 WrapperNode [2023-12-03 01:06:44,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:06:44,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:06:44,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:06:44,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:06:44,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,946 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,964 INFO L138 Inliner]: procedures = 18, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2023-12-03 01:06:44,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:06:44,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:06:44,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:06:44,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:06:44,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,986 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,988 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:44,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:06:44,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:06:44,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:06:44,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:06:44,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:06:44" (1/1) ... [2023-12-03 01:06:45,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:06:45,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:06:45,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:06:45,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:06:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:06:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_13_to_14_0 [2023-12-03 01:06:45,061 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_13_to_14_0 [2023-12-03 01:06:45,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:06:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-03 01:06:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:06:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-03 01:06:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:06:45,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:06:45,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:06:45,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-03 01:06:45,144 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:06:45,147 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:06:45,307 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:06:45,338 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:06:45,338 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:06:45,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:06:45 BoogieIcfgContainer [2023-12-03 01:06:45,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:06:45,342 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:06:45,342 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:06:45,353 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:06:45,353 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:06:45" (1/1) ... [2023-12-03 01:06:45,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:06:45,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:06:45,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-12-03 01:06:45,430 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-12-03 01:06:45,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:06:45,436 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:06:45,437 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:06:45,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:06:45,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:06:45,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 01:06:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:45,536 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:06:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:45,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 01:06:45,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:06:45,717 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 01:06:45,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 01:06:45,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:06:45,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 23 transitions. [2023-12-03 01:06:45,877 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2023-12-03 01:06:45,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 01:06:45,878 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:06:45,878 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:06:45,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:06:45,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:06:45,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 01:06:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:45,951 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:06:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:45,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 01:06:45,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:06:46,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:06:46,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:06:46,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 01:06:46,196 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:06:47,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:06:47,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 20 states and 27 transitions. [2023-12-03 01:06:47,578 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-12-03 01:06:47,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 01:06:47,580 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:06:47,580 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:06:47,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:06:47,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:06:47,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 01:06:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:47,656 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:06:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:47,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 01:06:47,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:06:47,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:06:47,996 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 01:06:47,999 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:06:47,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 01:06:50,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:06:50,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 23 states and 32 transitions. [2023-12-03 01:06:50,230 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2023-12-03 01:06:50,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 01:06:50,231 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:06:50,231 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:06:50,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:06:50,232 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:06:50,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 01:06:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:50,318 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:06:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:50,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-03 01:06:50,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:06:50,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:06:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 01:06:50,651 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:06:50,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-03 01:06:52,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:06:52,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 26 states and 37 transitions. [2023-12-03 01:06:52,260 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2023-12-03 01:06:52,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-03 01:06:52,261 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:06:52,262 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:06:52,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:06:52,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:06:52,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 01:06:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:52,344 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:06:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:52,370 WARN L260 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-03 01:06:52,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:06:52,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:06:52,750 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-03 01:06:52,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 01:06:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:06:54,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 29 states and 42 transitions. [2023-12-03 01:06:54,551 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 42 transitions. [2023-12-03 01:06:54,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 01:06:54,552 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:06:54,552 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:06:54,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:06:54,553 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:06:54,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 01:06:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:54,667 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:06:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:54,697 WARN L260 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 52 conjunts are in the unsatisfiable core [2023-12-03 01:06:54,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:06:55,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:06:55,255 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-03 01:06:55,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-03 01:06:58,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:06:58,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 32 states and 47 transitions. [2023-12-03 01:06:58,407 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2023-12-03 01:06:58,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 01:06:58,408 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:06:58,408 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:06:58,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:06:58,409 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:06:58,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 01:06:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:58,500 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:06:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:06:58,533 WARN L260 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-03 01:06:58,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:06:58,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:06:59,112 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-03 01:06:59,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 01:07:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:07:02,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 35 states and 52 transitions. [2023-12-03 01:07:02,836 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 52 transitions. [2023-12-03 01:07:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-03 01:07:02,838 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:07:02,838 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:07:02,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:07:02,839 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:07:02,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 01:07:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:02,968 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:07:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:03,005 WARN L260 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 70 conjunts are in the unsatisfiable core [2023-12-03 01:07:03,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:07:03,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:07:03,691 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-03 01:07:03,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-03 01:07:09,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:07:09,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 38 states and 57 transitions. [2023-12-03 01:07:09,906 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 57 transitions. [2023-12-03 01:07:09,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-03 01:07:09,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:07:09,907 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:07:09,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:07:09,908 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:07:09,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 01:07:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:10,035 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:07:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:10,072 WARN L260 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 79 conjunts are in the unsatisfiable core [2023-12-03 01:07:10,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:07:10,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:07:10,933 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-03 01:07:10,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-03 01:07:10,935 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:07:18,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:07:18,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 41 states and 62 transitions. [2023-12-03 01:07:18,093 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 62 transitions. [2023-12-03 01:07:18,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-03 01:07:18,094 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:07:18,095 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:07:18,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:07:18,096 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:07:18,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 01:07:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:18,228 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:07:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:18,270 WARN L260 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 88 conjunts are in the unsatisfiable core [2023-12-03 01:07:18,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:07:19,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:07:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-12-03 01:07:19,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-03 01:07:27,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:07:27,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 44 states and 67 transitions. [2023-12-03 01:07:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions. [2023-12-03 01:07:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 01:07:27,660 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:07:27,660 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:07:27,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:07:27,661 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:07:27,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 01:07:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:27,808 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:07:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:27,852 WARN L260 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 97 conjunts are in the unsatisfiable core [2023-12-03 01:07:27,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:07:28,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:07:29,155 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 01:07:29,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-03 01:07:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:07:39,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 47 states and 72 transitions. [2023-12-03 01:07:39,767 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 72 transitions. [2023-12-03 01:07:39,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-03 01:07:39,769 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:07:39,769 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:07:39,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:07:39,770 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:07:39,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 01:07:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:39,943 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:07:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:39,988 WARN L260 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 106 conjunts are in the unsatisfiable core [2023-12-03 01:07:39,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:07:40,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:07:41,295 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-12-03 01:07:41,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-03 01:07:52,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:07:54,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:07:54,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 50 states and 77 transitions. [2023-12-03 01:07:54,498 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 77 transitions. [2023-12-03 01:07:54,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-03 01:07:54,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:07:54,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:07:54,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:07:54,500 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:07:54,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-03 01:07:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:54,691 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:07:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:07:54,746 WARN L260 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 115 conjunts are in the unsatisfiable core [2023-12-03 01:07:54,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:07:55,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:07:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-12-03 01:07:56,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-03 01:08:10,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:08:12,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:08:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 53 states and 82 transitions. [2023-12-03 01:08:12,409 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 82 transitions. [2023-12-03 01:08:12,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-03 01:08:12,410 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:08:12,411 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:08:12,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:08:12,412 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:08:12,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-03 01:08:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:08:12,602 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:08:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:08:12,658 WARN L260 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 124 conjunts are in the unsatisfiable core [2023-12-03 01:08:12,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:08:14,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:08:14,516 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-03 01:08:14,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-03 01:08:22,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:08:33,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:08:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 56 states and 87 transitions. [2023-12-03 01:08:33,825 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 87 transitions. [2023-12-03 01:08:33,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-03 01:08:33,826 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:08:33,826 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:08:33,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:08:33,827 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:08:33,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-03 01:08:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:08:34,020 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:08:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:08:34,072 WARN L260 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 133 conjunts are in the unsatisfiable core [2023-12-03 01:08:34,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:08:35,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:08:36,424 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 237 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-12-03 01:08:36,427 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:08:36,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-12-03 01:08:45,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:08:46,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:08:55,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:08:57,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:08:57,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 59 states and 92 transitions. [2023-12-03 01:08:57,431 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 92 transitions. [2023-12-03 01:08:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-03 01:08:57,433 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:08:57,433 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:08:57,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:08:57,434 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:08:57,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-03 01:08:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:08:57,621 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:08:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:08:57,671 WARN L260 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 142 conjunts are in the unsatisfiable core [2023-12-03 01:08:57,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:08:59,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:09:00,236 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 0 proven. 269 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-12-03 01:09:00,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-03 01:09:10,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:09:11,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:09:21,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:09:23,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:09:25,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:09:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 62 states and 97 transitions. [2023-12-03 01:09:25,595 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 97 transitions. [2023-12-03 01:09:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-03 01:09:25,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:09:25,596 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:09:25,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:09:25,597 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:09:25,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-03 01:09:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:09:25,801 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:09:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:09:25,856 WARN L260 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 151 conjunts are in the unsatisfiable core [2023-12-03 01:09:25,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:09:28,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:09:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 303 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2023-12-03 01:09:28,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-03 01:09:39,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:09:41,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:09:52,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:09:54,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:09:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:09:57,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 65 states and 102 transitions. [2023-12-03 01:09:57,064 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 102 transitions. [2023-12-03 01:09:57,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-03 01:09:57,066 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:09:57,066 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:09:57,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:09:57,067 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:09:57,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-03 01:09:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:09:57,299 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:09:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:09:57,359 WARN L260 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 160 conjunts are in the unsatisfiable core [2023-12-03 01:09:57,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:09:59,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:10:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-12-03 01:10:00,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-03 01:10:13,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:10:14,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:10:27,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:10:29,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:10:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:10:32,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 68 states and 107 transitions. [2023-12-03 01:10:32,291 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 107 transitions. [2023-12-03 01:10:32,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-03 01:10:32,292 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:10:32,292 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:10:32,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:10:32,293 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:10:32,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-03 01:10:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:10:32,532 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:10:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:10:32,596 WARN L260 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 169 conjunts are in the unsatisfiable core [2023-12-03 01:10:32,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:10:35,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:10:36,389 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 0 proven. 377 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2023-12-03 01:10:36,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-03 01:10:51,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:11:04,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:11:07,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:11:07,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 71 states and 112 transitions. [2023-12-03 01:11:07,944 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 112 transitions. [2023-12-03 01:11:07,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-03 01:11:07,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:11:07,945 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:11:07,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:11:07,946 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:11:07,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-03 01:11:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:11:08,196 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:11:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:11:08,263 WARN L260 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 178 conjunts are in the unsatisfiable core [2023-12-03 01:11:08,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:11:11,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:11:12,275 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 417 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2023-12-03 01:11:12,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-03 01:11:30,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:11:47,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:11:49,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:11:53,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:11:53,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 74 states and 117 transitions. [2023-12-03 01:11:53,274 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 117 transitions. [2023-12-03 01:11:53,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-03 01:11:53,275 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:11:53,276 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:11:53,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:11:53,277 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:11:53,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-03 01:11:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:11:53,559 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:11:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:11:53,616 WARN L260 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 187 conjunts are in the unsatisfiable core [2023-12-03 01:11:53,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:11:57,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:11:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 459 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2023-12-03 01:11:58,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-03 01:12:17,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:12:20,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:12:38,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:12:41,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:12:45,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:12:45,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 77 states and 122 transitions. [2023-12-03 01:12:45,085 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 122 transitions. [2023-12-03 01:12:45,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-03 01:12:45,085 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:12:45,086 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:12:45,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:12:45,087 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:12:45,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-03 01:12:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:45,386 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:12:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:45,467 WARN L260 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 196 conjunts are in the unsatisfiable core [2023-12-03 01:12:45,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:12:49,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:12:50,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 0 proven. 503 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2023-12-03 01:12:50,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-03 01:13:11,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:13:14,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:13:17,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:13:36,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:13:39,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:13:43,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:13:43,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 80 states and 127 transitions. [2023-12-03 01:13:43,684 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 127 transitions. [2023-12-03 01:13:43,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-03 01:13:43,685 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:13:43,685 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:13:43,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:13:43,686 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:13:43,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-03 01:13:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:13:44,006 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:13:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:13:44,073 WARN L260 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 205 conjunts are in the unsatisfiable core [2023-12-03 01:13:44,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:13:48,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:13:49,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 549 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2023-12-03 01:13:49,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-03 01:14:15,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:14:19,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:14:39,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:14:44,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:14:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:14:48,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 83 states and 132 transitions. [2023-12-03 01:14:48,849 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 132 transitions. [2023-12-03 01:14:48,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-03 01:14:48,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:14:48,850 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:14:48,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:14:48,851 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:14:48,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-03 01:14:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:14:49,160 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:14:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:14:49,234 WARN L260 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 214 conjunts are in the unsatisfiable core [2023-12-03 01:14:49,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:14:54,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:14:55,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1357 backedges. 0 proven. 597 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-03 01:14:55,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-03 01:15:20,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:15:25,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:15:48,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:15:53,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:15:58,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:15:58,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 86 states and 137 transitions. [2023-12-03 01:15:58,244 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 137 transitions. [2023-12-03 01:15:58,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-03 01:15:58,245 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:15:58,245 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:15:58,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:15:58,246 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:15:58,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-03 01:15:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:58,584 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:15:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:58,650 WARN L260 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 223 conjunts are in the unsatisfiable core [2023-12-03 01:15:58,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:16:03,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:16:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 0 proven. 647 refuted. 0 times theorem prover too weak. 829 trivial. 0 not checked. [2023-12-03 01:16:05,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-03 01:16:33,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:16:38,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:17:07,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:17:11,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:17:16,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:16,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 89 states and 142 transitions. [2023-12-03 01:17:16,646 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 142 transitions. [2023-12-03 01:17:16,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-03 01:17:16,647 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:16,647 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:16,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:16,649 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:16,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-03 01:17:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:17,031 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:17,109 WARN L260 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 232 conjunts are in the unsatisfiable core [2023-12-03 01:17:17,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:23,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:17:24,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 0 proven. 699 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2023-12-03 01:17:24,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-03 01:17:54,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:17:57,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:18:03,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:18:39,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:18:45,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:18:51,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:51,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 92 states and 147 transitions. [2023-12-03 01:18:51,993 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 147 transitions. [2023-12-03 01:18:51,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-03 01:18:51,994 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:51,994 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:18:51,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:18:51,995 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:18:51,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-03 01:18:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:52,410 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:18:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:52,491 WARN L260 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 241 conjunts are in the unsatisfiable core [2023-12-03 01:18:52,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:59,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:19:01,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 0 proven. 753 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2023-12-03 01:19:01,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-03 01:19:17,900 WARN L293 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:19:34,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:19:42,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:19:48,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:20:10,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:20:25,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:20:30,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:20:37,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:20:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 95 states and 152 transitions. [2023-12-03 01:20:37,020 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 152 transitions. [2023-12-03 01:20:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-03 01:20:37,020 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:20:37,020 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:20:37,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:20:37,022 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:20:37,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-03 01:20:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:37,447 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:20:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:37,525 WARN L260 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 250 conjunts are in the unsatisfiable core [2023-12-03 01:20:37,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:20:45,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-03 01:20:47,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 0 proven. 809 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2023-12-03 01:20:47,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_629268a6-3967-472e-aee0-a36d0d86f584/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-03 01:21:07,308 WARN L293 SmtUtils]: Spent 6.70s on a formula simplification that was a NOOP. DAG size: 171 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:21:25,271 WARN L293 SmtUtils]: Spent 6.28s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 01:21:26,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:21:30,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:21:33,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:21:39,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []