./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b --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 a367fffaabe322cc88315ee22f1c9c69606de0332ddd62ff36608ec1e5019dc8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:00:39,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:00:39,249 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:00:39,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:00:39,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:00:39,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:00:39,273 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:00:39,273 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:00:39,274 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:00:39,274 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:00:39,274 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:00:39,274 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:00:39,274 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:00:39,275 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:00:39,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:00:39,275 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:00:39,275 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:00:39,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:00:39,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:00:39,275 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:00:39,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:00:39,275 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:00:39,275 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:00:39,275 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:00:39,275 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:00:39,276 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:00:39,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:00:39,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:00:39,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:00:39,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:00:39,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:00:39,276 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:00:39,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:00:39,276 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b 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 -> a367fffaabe322cc88315ee22f1c9c69606de0332ddd62ff36608ec1e5019dc8 [2024-12-06 03:00:39,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:00:39,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:00:39,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:00:39,520 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:00:39,520 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:00:39,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c [2024-12-06 03:00:42,136 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/data/2673b1bf4/49cd0754f2fb45bcb174f637e09a92f2/FLAGf6f4ad117 [2024-12-06 03:00:42,328 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:00:42,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c [2024-12-06 03:00:42,335 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/data/2673b1bf4/49cd0754f2fb45bcb174f637e09a92f2/FLAGf6f4ad117 [2024-12-06 03:00:42,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/data/2673b1bf4/49cd0754f2fb45bcb174f637e09a92f2 [2024-12-06 03:00:42,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:00:42,699 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:00:42,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:00:42,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:00:42,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:00:42,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a892ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42, skipping insertion in model container [2024-12-06 03:00:42,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,714 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:00:42,817 WARN L250 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_1034e81d-4972-426a-8fcd-c9fc68ac7c38/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c[524,537] [2024-12-06 03:00:42,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:00:42,843 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:00:42,854 WARN L250 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_1034e81d-4972-426a-8fcd-c9fc68ac7c38/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound50.c[524,537] [2024-12-06 03:00:42,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:00:42,872 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:00:42,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42 WrapperNode [2024-12-06 03:00:42,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:00:42,874 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:00:42,874 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:00:42,874 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:00:42,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,895 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2024-12-06 03:00:42,895 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:00:42,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:00:42,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:00:42,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:00:42,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,906 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,907 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,910 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:00:42,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:00:42,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:00:42,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:00:42,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:00:42" (1/1) ... [2024-12-06 03:00:42,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:00:42,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:00:42,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:00:42,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1034e81d-4972-426a-8fcd-c9fc68ac7c38/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:00:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:00:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 03:00:42,968 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 03:00:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:00:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:00:42,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:00:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 03:00:42,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 03:00:43,013 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:00:43,015 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:00:43,114 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-06 03:00:43,114 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:00:43,142 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:00:43,143 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 03:00:43,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:00:43 BoogieIcfgContainer [2024-12-06 03:00:43,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:00:43,144 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:00:43,144 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:00:43,153 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:00:43,153 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:00:43" (1/1) ... [2024-12-06 03:00:43,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:00:43,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:00:43,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-12-06 03:00:43,209 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-12-06 03:00:43,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 03:00:43,214 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:00:43,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:00:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:00:43,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:00:43,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:00:43,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-12-06 03:00:43,353 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-12-06 03:00:43,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 03:00:43,353 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:00:43,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:00:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:00:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:00:43,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 03:00:43,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:00:43,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:00:44,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:00:44,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-12-06 03:00:44,205 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-12-06 03:00:44,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 03:00:44,206 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:00:44,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:00:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:00:44,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:00:44,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:00:44,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2024-12-06 03:00:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-12-06 03:00:44,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-06 03:00:44,645 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:00:44,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:00:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:00:45,995 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:00:49,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 03:00:52,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 03:00:52,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:00:52,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-12-06 03:00:52,841 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-12-06 03:00:52,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 03:00:52,841 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:00:52,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:00:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:00:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:01:10,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:01:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 46 transitions. [2024-12-06 03:01:10,313 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2024-12-06 03:01:10,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 03:01:10,313 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:01:10,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:01:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:01:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:01:10,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-06 03:01:10,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:01:24,462 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 03:02:11,420 WARN L286 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 33 DAG size of output: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:02:41,437 WARN L286 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 37 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:02:52,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 03:03:28,117 WARN L286 SmtUtils]: Spent 20.78s on a formula simplification. DAG size of input: 48 DAG size of output: 25 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:03:51,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 03:03:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:03:51,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 38 states and 66 transitions. [2024-12-06 03:03:51,177 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 66 transitions. [2024-12-06 03:03:51,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 03:03:51,178 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:03:51,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:03:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:03:51,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:03:55,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 03:03:56,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:03:56,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 40 states and 68 transitions. [2024-12-06 03:03:56,035 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2024-12-06 03:03:56,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 03:03:56,036 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:03:56,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:03:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:03:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:03:56,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-06 03:03:56,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:04:32,985 WARN L286 SmtUtils]: Spent 10.93s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:04:39,543 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-06 03:04:51,134 WARN L286 SmtUtils]: Spent 7.43s on a formula simplification. DAG size of input: 53 DAG size of output: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:05:14,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 03:06:07,152 WARN L286 SmtUtils]: Spent 23.19s on a formula simplification. DAG size of input: 68 DAG size of output: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:06:23,171 WARN L286 SmtUtils]: Spent 9.21s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:06:40,389 WARN L286 SmtUtils]: Spent 11.16s on a formula simplification. DAG size of input: 69 DAG size of output: 56 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:06:56,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 03:07:19,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.24s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 03:07:21,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 03:07:21,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:07:21,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 44 states and 82 transitions. [2024-12-06 03:07:21,526 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 82 transitions. [2024-12-06 03:07:21,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 03:07:21,527 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:07:21,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:07:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:07:21,732 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 03:09:07,309 WARN L286 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:09:07,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:09:07,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 48 states and 94 transitions. [2024-12-06 03:09:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 94 transitions. [2024-12-06 03:09:07,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 03:09:07,354 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:09:07,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:09:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:09:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:09:07,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-06 03:09:07,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:10:13,943 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-06 03:10:25,627 WARN L286 SmtUtils]: Spent 7.81s on a formula simplification. DAG size of input: 52 DAG size of output: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:11:06,492 WARN L286 SmtUtils]: Spent 8.34s on a formula simplification. DAG size of input: 54 DAG size of output: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:11:48,249 WARN L286 SmtUtils]: Spent 24.17s on a formula simplification. DAG size of input: 60 DAG size of output: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:12:25,178 WARN L286 SmtUtils]: Spent 10.77s on a formula simplification that was a NOOP. DAG size: 45 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:12:26,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 03:12:28,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 03:12:38,867 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse14 (* (- 1) |c_ULTIMATE.start_main_~u~0#1|)) (.cse8 (+ |c_ULTIMATE.start_main_~u~0#1| 1))) (let ((.cse10 (= |c_ULTIMATE.start_main_~v~0#1| 1)) (.cse2 (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 4)) (.cse9 (let ((.cse17 (div (+ (- 1) |c_ULTIMATE.start_main_~u~0#1|) 2))) (* .cse17 .cse17))) (.cse4 (= 5 |c_ULTIMATE.start_main_~v~0#1|)) (.cse5 (= 3 |c_ULTIMATE.start_main_~v~0#1|)) (.cse3 (= (mod .cse8 2) 0)) (.cse1 (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~A~0#1|)) (.cse0 (let ((.cse16 (div (+ .cse14 1) 2))) (* .cse16 .cse16)))) (and (not (or (and (<= (+ 3 .cse0) .cse1) (<= (+ 2 |c_ULTIMATE.start_main_~A~0#1|) .cse0) (= .cse2 .cse0) .cse3 .cse4) (let ((.cse7 (div .cse8 2))) (let ((.cse6 (* .cse7 .cse7))) (and .cse5 (<= (+ .cse6 4) (+ |c_ULTIMATE.start_main_~A~0#1| (* .cse7 4))) (<= (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse6) (= .cse6 (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1)) (<= (+ .cse6 10) (+ (* 6 .cse7) |c_ULTIMATE.start_main_~A~0#1|)) .cse3))))) (not (and (= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1|) .cse9) .cse3 .cse10)) (let ((.cse11 (+ 2 |c_ULTIMATE.start_main_~r~0#1|))) (or (let ((.cse13 (div (+ 3 .cse14) 2))) (let ((.cse12 (* .cse13 .cse13))) (and (<= .cse11 |c_ULTIMATE.start_main_~u~0#1|) (= (+ |c_ULTIMATE.start_main_~u~0#1| .cse12) (+ 2 |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1|)) (not (= .cse11 |c_ULTIMATE.start_main_~u~0#1|)) .cse3 (<= (+ 5 (* 4 .cse13) .cse12) |c_ULTIMATE.start_main_~A~0#1|) .cse10))) (and (<= (+ 3 .cse9) .cse1) (<= 0 .cse11) (= .cse2 .cse9) .cse3 .cse4) (let ((.cse15 (+ 2 .cse0))) (and .cse5 (= .cse0 (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1)) (<= 0 |c_ULTIMATE.start_main_~r~0#1|) .cse3 (not (= .cse1 .cse15)) (<= .cse15 .cse1)))))))) is different from false [2024-12-06 03:13:52,373 WARN L873 $PredicateComparison]: unable to prove that (not (let ((.cse14 (* (- 1) |c_ULTIMATE.start_main_~u~0#1|)) (.cse8 (+ |c_ULTIMATE.start_main_~u~0#1| 1))) (let ((.cse10 (= |c_ULTIMATE.start_main_~v~0#1| 1)) (.cse2 (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 4)) (.cse9 (let ((.cse17 (div (+ (- 1) |c_ULTIMATE.start_main_~u~0#1|) 2))) (* .cse17 .cse17))) (.cse4 (= 5 |c_ULTIMATE.start_main_~v~0#1|)) (.cse5 (= 3 |c_ULTIMATE.start_main_~v~0#1|)) (.cse3 (= (mod .cse8 2) 0)) (.cse1 (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~A~0#1|)) (.cse0 (let ((.cse16 (div (+ .cse14 1) 2))) (* .cse16 .cse16)))) (and (not (or (and (<= (+ 3 .cse0) .cse1) (<= (+ 2 |c_ULTIMATE.start_main_~A~0#1|) .cse0) (= .cse2 .cse0) .cse3 .cse4) (let ((.cse7 (div .cse8 2))) (let ((.cse6 (* .cse7 .cse7))) (and .cse5 (<= (+ .cse6 4) (+ |c_ULTIMATE.start_main_~A~0#1| (* .cse7 4))) (<= (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse6) (= .cse6 (+ |c_ULTIMATE.start_main_~u~0#1| |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1)) (<= (+ .cse6 10) (+ (* 6 .cse7) |c_ULTIMATE.start_main_~A~0#1|)) .cse3))))) (not (and (= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1|) .cse9) .cse3 .cse10)) (let ((.cse11 (+ 2 |c_ULTIMATE.start_main_~r~0#1|))) (or (let ((.cse13 (div (+ 3 .cse14) 2))) (let ((.cse12 (* .cse13 .cse13))) (and (<= .cse11 |c_ULTIMATE.start_main_~u~0#1|) (= (+ |c_ULTIMATE.start_main_~u~0#1| .cse12) (+ 2 |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1|)) (not (= .cse11 |c_ULTIMATE.start_main_~u~0#1|)) .cse3 (<= (+ 5 (* 4 .cse13) .cse12) |c_ULTIMATE.start_main_~A~0#1|) .cse10))) (and (<= (+ 3 .cse9) .cse1) (<= 0 .cse11) (= .cse2 .cse9) .cse3 .cse4) (let ((.cse15 (+ 2 .cse0))) (and .cse5 (= .cse0 (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1)) (<= 0 |c_ULTIMATE.start_main_~r~0#1|) .cse3 (not (= .cse1 .cse15)) (<= .cse15 .cse1))))))))) is different from true [2024-12-06 03:13:52,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:13:52,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 54 states and 114 transitions. [2024-12-06 03:13:52,403 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 114 transitions. [2024-12-06 03:13:52,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 03:13:52,404 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:13:52,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:13:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 03:13:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:13:52,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-06 03:13:52,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 03:15:53,692 WARN L286 SmtUtils]: Spent 6.94s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 03:15:57,307 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.