./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/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_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/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_1ea51ea4-e943-4643-a421-5bd676e44a17/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 5bfe5681b6d73d5859a119345279b9da165675f4eb4d814fdf24f92881f7a27f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:24:12,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:24:12,758 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 00:24:12,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:24:12,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:24:12,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:24:12,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:24:12,789 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:24:12,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:24:12,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:24:12,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:24:12,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:24:12,792 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:24:12,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:24:12,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:24:12,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:24:12,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:24:12,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:24:12,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:24:12,796 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:24:12,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:24:12,797 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:24:12,798 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:24:12,798 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:24:12,798 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:24:12,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:24:12,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:24:12,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:24:12,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:24:12,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:24:12,801 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:24:12,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:24:12,802 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:24:12,802 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_1ea51ea4-e943-4643-a421-5bd676e44a17/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bfe5681b6d73d5859a119345279b9da165675f4eb4d814fdf24f92881f7a27f [2023-12-03 00:24:13,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:24:13,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:24:13,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:24:13,043 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:24:13,043 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:24:13,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c [2023-12-03 00:24:15,800 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:24:15,954 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:24:15,955 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c [2023-12-03 00:24:15,960 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/data/351be9ac2/43250b67d7054a6eb3c823a9f34e798c/FLAG46870cab3 [2023-12-03 00:24:15,971 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/data/351be9ac2/43250b67d7054a6eb3c823a9f34e798c [2023-12-03 00:24:15,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:24:15,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:24:15,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:24:15,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:24:15,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:24:15,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:24:15" (1/1) ... [2023-12-03 00:24:15,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a2aef0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:15, skipping insertion in model container [2023-12-03 00:24:15,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:24:15" (1/1) ... [2023-12-03 00:24:16,000 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:24:16,130 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_1ea51ea4-e943-4643-a421-5bd676e44a17/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c[458,471] [2023-12-03 00:24:16,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:24:16,159 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:24:16,171 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_1ea51ea4-e943-4643-a421-5bd676e44a17/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c[458,471] [2023-12-03 00:24:16,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:24:16,194 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:24:16,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16 WrapperNode [2023-12-03 00:24:16,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:24:16,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:24:16,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:24:16,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:24:16,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,230 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2023-12-03 00:24:16,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:24:16,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:24:16,232 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:24:16,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:24:16,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,247 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:24:16,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:24:16,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:24:16,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:24:16,256 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:24:16,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:24:16,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:24:16,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:24:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:24:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:24:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:24:16,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:24:16,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 00:24:16,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 00:24:16,391 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:24:16,394 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:24:16,519 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:24:16,553 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:24:16,553 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 00:24:16,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:24:16 BoogieIcfgContainer [2023-12-03 00:24:16,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:24:16,555 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:24:16,555 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:24:16,563 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:24:16,563 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:24:16" (1/1) ... [2023-12-03 00:24:16,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:24:16,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:16,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2023-12-03 00:24:16,625 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2023-12-03 00:24:16,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 00:24:16,627 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:16,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:16,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 00:24:16,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:16,806 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 00:24:16,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:16,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2023-12-03 00:24:16,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2023-12-03 00:24:16,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:24:16,826 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:16,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:16,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 00:24:16,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:24:16,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:16,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-12-03 00:24:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-12-03 00:24:16,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:24:16,961 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:16,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:16,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 00:24:16,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:17,059 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 00:24:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-12-03 00:24:17,443 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-12-03 00:24:17,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 00:24:17,448 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:17,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:17,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 00:24:17,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:17,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:24:18,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:18,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 26 states and 41 transitions. [2023-12-03 00:24:18,015 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 41 transitions. [2023-12-03 00:24:18,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 00:24:18,016 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:18,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:18,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 00:24:18,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:18,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:24:19,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 61 transitions. [2023-12-03 00:24:19,016 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2023-12-03 00:24:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 00:24:19,017 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:19,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:19,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 00:24:19,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:19,124 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:24:19,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:19,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 38 states and 72 transitions. [2023-12-03 00:24:19,769 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 72 transitions. [2023-12-03 00:24:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 00:24:19,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:19,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:19,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 00:24:19,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:19,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:24:20,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:20,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 40 states and 73 transitions. [2023-12-03 00:24:20,191 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 73 transitions. [2023-12-03 00:24:20,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 00:24:20,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:20,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:20,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 00:24:20,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:20,284 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:24:20,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:20,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 42 states and 84 transitions. [2023-12-03 00:24:20,515 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 84 transitions. [2023-12-03 00:24:20,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:24:20,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:20,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:20,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 00:24:20,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:20,688 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:24:21,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 46 states and 95 transitions. [2023-12-03 00:24:21,620 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 95 transitions. [2023-12-03 00:24:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:24:21,622 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:21,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:21,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 00:24:21,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:21,734 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:24:22,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:22,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 48 states and 96 transitions. [2023-12-03 00:24:22,123 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 96 transitions. [2023-12-03 00:24:22,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:24:22,125 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:22,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:22,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 00:24:22,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:22,261 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:24:23,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:23,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 56 states and 129 transitions. [2023-12-03 00:24:23,639 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 129 transitions. [2023-12-03 00:24:23,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:24:23,641 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:23,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:23,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 00:24:23,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:24:24,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:24,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 59 states and 132 transitions. [2023-12-03 00:24:24,484 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 132 transitions. [2023-12-03 00:24:24,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:24:24,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:24,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:24,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 00:24:24,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:24,539 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:24:24,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:24,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 59 states and 131 transitions. [2023-12-03 00:24:24,730 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 131 transitions. [2023-12-03 00:24:24,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 00:24:24,731 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:24,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:24,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 00:24:24,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:25,000 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:24:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 69 states and 172 transitions. [2023-12-03 00:24:27,087 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 172 transitions. [2023-12-03 00:24:27,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 00:24:27,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:27,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:27,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 00:24:27,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:27,163 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:24:27,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:27,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 72 states and 176 transitions. [2023-12-03 00:24:27,954 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 176 transitions. [2023-12-03 00:24:27,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 00:24:27,955 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:27,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:27,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 00:24:27,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:28,155 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:24:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:29,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 80 states and 218 transitions. [2023-12-03 00:24:29,875 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 218 transitions. [2023-12-03 00:24:29,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 00:24:29,876 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:29,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:29,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 00:24:29,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:24:31,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:31,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 84 states and 235 transitions. [2023-12-03 00:24:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 235 transitions. [2023-12-03 00:24:31,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 00:24:31,345 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:31,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:31,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 00:24:31,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:24:32,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:32,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 87 states and 238 transitions. [2023-12-03 00:24:32,422 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 238 transitions. [2023-12-03 00:24:32,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 00:24:32,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:32,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:32,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 00:24:32,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:24:32,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:32,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 87 states and 237 transitions. [2023-12-03 00:24:32,805 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 237 transitions. [2023-12-03 00:24:32,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 00:24:32,806 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:32,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:32,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 00:24:32,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:24:33,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:33,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 90 states and 240 transitions. [2023-12-03 00:24:33,899 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 240 transitions. [2023-12-03 00:24:33,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 00:24:33,900 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:33,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:33,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 00:24:33,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:34,040 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:24:34,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:34,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 92 states and 241 transitions. [2023-12-03 00:24:34,728 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 241 transitions. [2023-12-03 00:24:34,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 00:24:34,728 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:34,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:34,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 00:24:34,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:34,788 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:24:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:35,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 92 states and 240 transitions. [2023-12-03 00:24:35,065 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 240 transitions. [2023-12-03 00:24:35,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 00:24:35,066 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:35,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:35,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 00:24:35,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:35,520 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 00:24:39,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:39,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 102 states and 289 transitions. [2023-12-03 00:24:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 289 transitions. [2023-12-03 00:24:39,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 00:24:39,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:39,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:39,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 00:24:39,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:39,294 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 00:24:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:40,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 107 states and 295 transitions. [2023-12-03 00:24:40,986 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 295 transitions. [2023-12-03 00:24:40,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 00:24:40,987 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:40,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:41,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 00:24:41,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 00:24:41,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 108 states and 297 transitions. [2023-12-03 00:24:41,424 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 297 transitions. [2023-12-03 00:24:41,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 00:24:41,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:41,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:41,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 00:24:41,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:41,504 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 00:24:42,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:42,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 111 states and 300 transitions. [2023-12-03 00:24:42,405 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 300 transitions. [2023-12-03 00:24:42,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 00:24:42,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:42,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:43,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 00:24:43,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:43,966 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 00:24:45,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:24:45,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 115 states and 316 transitions. [2023-12-03 00:24:45,566 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 316 transitions. [2023-12-03 00:24:45,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 00:24:45,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:24:45,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:24:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:24:46,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 00:24:46,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:24:47,060 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 00:25:00,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 00:25:01,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:01,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 118 states and 320 transitions. [2023-12-03 00:25:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 320 transitions. [2023-12-03 00:25:01,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 00:25:01,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:01,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:01,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 00:25:01,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:01,375 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:25:04,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:04,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 126 states and 377 transitions. [2023-12-03 00:25:04,287 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 377 transitions. [2023-12-03 00:25:04,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 00:25:04,288 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:04,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:04,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 00:25:04,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 00:25:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:06,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 129 states and 380 transitions. [2023-12-03 00:25:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 380 transitions. [2023-12-03 00:25:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 00:25:06,256 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:06,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:06,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 00:25:06,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:25:06,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:06,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 129 states and 379 transitions. [2023-12-03 00:25:06,714 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 379 transitions. [2023-12-03 00:25:06,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 00:25:06,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:06,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:10,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 00:25:10,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 00:25:11,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 131 states and 380 transitions. [2023-12-03 00:25:11,183 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 380 transitions. [2023-12-03 00:25:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 00:25:11,184 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:11,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:11,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 00:25:11,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 13 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 00:25:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 134 states and 383 transitions. [2023-12-03 00:25:12,918 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 383 transitions. [2023-12-03 00:25:12,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 00:25:12,919 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:12,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:12,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 00:25:12,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:25:13,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 134 states and 382 transitions. [2023-12-03 00:25:13,349 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 382 transitions. [2023-12-03 00:25:13,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 00:25:13,351 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:13,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:13,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 00:25:13,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:13,417 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:25:13,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:13,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 134 states and 381 transitions. [2023-12-03 00:25:13,815 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 381 transitions. [2023-12-03 00:25:13,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-03 00:25:13,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:13,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:13,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 00:25:13,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:14,419 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 00:25:19,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:19,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 144 states and 441 transitions. [2023-12-03 00:25:19,569 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 441 transitions. [2023-12-03 00:25:19,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-03 00:25:19,570 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:19,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:19,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 00:25:19,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 00:25:22,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:22,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 149 states and 447 transitions. [2023-12-03 00:25:22,110 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 447 transitions. [2023-12-03 00:25:22,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-03 00:25:22,111 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:22,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:22,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 00:25:22,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:22,224 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 00:25:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 153 states and 452 transitions. [2023-12-03 00:25:23,590 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 452 transitions. [2023-12-03 00:25:23,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-03 00:25:23,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:23,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:23,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 00:25:23,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 00:25:24,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 154 states and 454 transitions. [2023-12-03 00:25:24,175 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 454 transitions. [2023-12-03 00:25:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-03 00:25:24,176 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:24,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:24,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 00:25:24,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 00:25:25,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:25,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 157 states and 457 transitions. [2023-12-03 00:25:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 457 transitions. [2023-12-03 00:25:25,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-03 00:25:25,256 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:25,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 00:25:25,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:25,361 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 00:25:25,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:25,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 159 states and 458 transitions. [2023-12-03 00:25:25,977 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 458 transitions. [2023-12-03 00:25:25,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-03 00:25:25,979 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:25,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 00:25:36,009 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-03 00:25:36,012 INFO L158 Benchmark]: Toolchain (without parser) took 80037.66ms. Allocated memory was 163.6MB in the beginning and 343.9MB in the end (delta: 180.4MB). Free memory was 127.5MB in the beginning and 220.5MB in the end (delta: -93.1MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. [2023-12-03 00:25:36,013 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:25:36,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.11ms. Allocated memory is still 163.6MB. Free memory was 127.5MB in the beginning and 116.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:25:36,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.90ms. Allocated memory is still 163.6MB. Free memory was 116.3MB in the beginning and 115.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:25:36,014 INFO L158 Benchmark]: Boogie Preprocessor took 22.83ms. Allocated memory is still 163.6MB. Free memory was 115.0MB in the beginning and 113.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:25:36,015 INFO L158 Benchmark]: RCFGBuilder took 299.62ms. Allocated memory is still 163.6MB. Free memory was 113.7MB in the beginning and 101.6MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:25:36,015 INFO L158 Benchmark]: CodeCheck took 79455.99ms. Allocated memory was 163.6MB in the beginning and 343.9MB in the end (delta: 180.4MB). Free memory was 101.6MB in the beginning and 220.5MB in the end (delta: -119.0MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2023-12-03 00:25:36,018 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.11ms. Allocated memory is still 163.6MB. Free memory was 127.5MB in the beginning and 116.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.90ms. Allocated memory is still 163.6MB. Free memory was 116.3MB in the beginning and 115.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.83ms. Allocated memory is still 163.6MB. Free memory was 115.0MB in the beginning and 113.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 299.62ms. Allocated memory is still 163.6MB. Free memory was 113.7MB in the beginning and 101.6MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 79455.99ms. Allocated memory was 163.6MB in the beginning and 343.9MB in the end (delta: 180.4MB). Free memory was 101.6MB in the beginning and 220.5MB in the end (delta: -119.0MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 00:25:36,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/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_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/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_1ea51ea4-e943-4643-a421-5bd676e44a17/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 5bfe5681b6d73d5859a119345279b9da165675f4eb4d814fdf24f92881f7a27f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:25:37,855 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:25:37,933 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-03 00:25:37,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:25:37,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:25:37,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:25:37,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:25:37,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:25:37,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:25:37,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:25:37,972 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:25:37,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:25:37,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:25:37,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:25:37,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:25:37,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:25:37,975 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 00:25:37,976 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 00:25:37,976 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 00:25:37,977 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:25:37,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:25:37,978 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:25:37,978 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:25:37,979 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:25:37,979 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:25:37,980 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:25:37,980 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 00:25:37,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:25:37,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:25:37,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:25:37,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:25:37,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:25:37,983 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 00:25:37,983 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:25:37,984 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:25:37,984 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 00:25:37,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 00:25:37,984 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_1ea51ea4-e943-4643-a421-5bd676e44a17/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bfe5681b6d73d5859a119345279b9da165675f4eb4d814fdf24f92881f7a27f [2023-12-03 00:25:38,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:25:38,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:25:38,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:25:38,309 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:25:38,309 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:25:38,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c [2023-12-03 00:25:41,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:25:41,308 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:25:41,309 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c [2023-12-03 00:25:41,316 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/data/40a8f14ac/858dd0db2c194e92ae3ffc8686905c60/FLAGb9cc18cc7 [2023-12-03 00:25:41,328 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/data/40a8f14ac/858dd0db2c194e92ae3ffc8686905c60 [2023-12-03 00:25:41,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:25:41,331 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:25:41,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:25:41,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:25:41,337 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:25:41,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6d1300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41, skipping insertion in model container [2023-12-03 00:25:41,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,356 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:25:41,477 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_1ea51ea4-e943-4643-a421-5bd676e44a17/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c[458,471] [2023-12-03 00:25:41,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:25:41,511 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:25:41,521 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_1ea51ea4-e943-4643-a421-5bd676e44a17/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c[458,471] [2023-12-03 00:25:41,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:25:41,544 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:25:41,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41 WrapperNode [2023-12-03 00:25:41,544 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:25:41,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:25:41,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:25:41,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:25:41,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,578 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2023-12-03 00:25:41,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:25:41,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:25:41,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:25:41,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:25:41,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:25:41,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:25:41,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:25:41,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:25:41,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:41" (1/1) ... [2023-12-03 00:25:41,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:25:41,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:25:41,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:25:41,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:25:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:25:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 00:25:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:25:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:25:41,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 00:25:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 00:25:41,734 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:25:41,736 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:25:42,072 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:25:42,122 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:25:42,123 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 00:25:42,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:25:42 BoogieIcfgContainer [2023-12-03 00:25:42,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:25:42,125 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:25:42,126 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:25:42,133 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:25:42,133 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:25:42" (1/1) ... [2023-12-03 00:25:42,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:25:42,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2023-12-03 00:25:42,188 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2023-12-03 00:25:42,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 00:25:42,189 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:42,190 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:25:42,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:25:42,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:25:42,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 00:25:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:42,279 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:25:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:42,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 00:25:42,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:42,539 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 00:25:42,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 00:25:42,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:42,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2023-12-03 00:25:42,564 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2023-12-03 00:25:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:25:42,565 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:42,565 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:25:42,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:25:42,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:25:42,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 00:25:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:42,985 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:25:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:43,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 00:25:43,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:43,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:25:43,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 00:25:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:43,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-12-03 00:25:43,383 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-12-03 00:25:43,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:25:43,384 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:43,384 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:25:43,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:25:43,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:25:43,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 00:25:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:43,780 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:25:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:44,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 00:25:44,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:44,340 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 00:25:44,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 00:25:47,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:47,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2023-12-03 00:25:47,273 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-12-03 00:25:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 00:25:47,277 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:47,278 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:25:47,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:25:47,279 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:25:47,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 00:25:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:47,326 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:25:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:47,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 00:25:47,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:26:15,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:26:15,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-03 00:26:22,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:26:49,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:26:51,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:26:57,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:26:57,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 26 states and 41 transitions. [2023-12-03 00:26:57,713 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 41 transitions. [2023-12-03 00:26:57,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 00:26:57,714 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:26:57,714 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:26:57,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:26:57,715 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:26:57,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 00:26:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:26:58,559 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:26:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:26:59,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 00:26:59,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:27:00,386 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:27:00,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 00:28:03,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:28:22,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:28:22,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 30 states and 49 transitions. [2023-12-03 00:28:22,742 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 49 transitions. [2023-12-03 00:28:22,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 00:28:22,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:28:22,743 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:28:22,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:28:22,744 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:28:22,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 00:28:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:28:23,693 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:28:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:28:24,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 00:28:24,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:28:30,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:28:30,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-03 00:29:30,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:29:30,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:29:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 38 states and 73 transitions. [2023-12-03 00:29:30,862 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 73 transitions. [2023-12-03 00:29:30,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 00:29:30,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:29:30,863 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:29:30,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:29:30,864 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:29:30,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 00:29:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:29:31,692 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:29:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:29:32,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 00:29:32,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:29:32,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:29:32,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 00:29:42,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:29:49,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:29:49,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 74 transitions. [2023-12-03 00:29:49,993 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 74 transitions. [2023-12-03 00:29:49,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 00:29:49,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:29:49,995 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:29:49,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:29:49,996 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:29:50,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 00:29:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:29:50,451 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:29:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:29:50,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 00:29:50,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:29:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:29:52,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-03 00:31:45,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:31:45,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 42 states and 85 transitions. [2023-12-03 00:31:45,896 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 85 transitions. [2023-12-03 00:31:45,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:31:45,898 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:31:45,898 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:31:45,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:31:45,900 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:31:45,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 00:31:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:31:47,267 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:31:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:31:48,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 00:31:48,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:31:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 00:31:50,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-03 00:33:18,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:34:10,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 46 states and 97 transitions. [2023-12-03 00:34:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 97 transitions. [2023-12-03 00:34:10,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:34:10,811 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:10,811 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:34:10,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:34:10,812 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:34:10,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 00:34:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:12,191 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:34:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:13,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 00:34:13,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:34:20,644 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:34:20,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-03 00:35:37,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:35:53,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:35:53,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:35:53,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 54 states and 131 transitions. [2023-12-03 00:35:53,428 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 131 transitions. [2023-12-03 00:35:53,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:35:53,430 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:35:53,431 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:35:53,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:35:53,432 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:35:53,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 00:35:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:35:54,867 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:35:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:35:56,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 00:35:56,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:35:56,381 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:35:56,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-03 00:36:10,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 00:36:22,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:36:22,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 56 states and 132 transitions. [2023-12-03 00:36:22,974 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 132 transitions. [2023-12-03 00:36:22,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 00:36:22,976 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:36:22,976 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:36:22,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:36:22,977 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:36:22,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 00:36:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:36:23,939 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:36:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:36:24,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 00:36:24,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:36:30,570 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:36:30,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ea51ea4-e943-4643-a421-5bd676e44a17/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0