./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.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_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/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_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/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_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/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 96b71e4fe20331af08d1b5394215c6ca1c246124118142d0900823a256b0e31d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:30:45,189 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:30:45,247 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 23:30:45,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:30:45,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:30:45,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:30:45,272 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:30:45,273 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:30:45,273 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:30:45,273 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:30:45,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:30:45,273 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:30:45,273 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:30:45,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:30:45,274 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:30:45,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:30:45,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:30:45,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:30:45,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:30:45,274 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:30:45,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:30:45,274 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:30:45,274 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:30:45,274 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:30:45,274 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:30:45,275 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:30:45,275 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:30:45,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:30:45,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:30:45,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:30:45,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:30:45,275 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:30:45,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:30:45,275 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_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/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 -> 96b71e4fe20331af08d1b5394215c6ca1c246124118142d0900823a256b0e31d [2024-12-05 23:30:45,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:30:45,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:30:45,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:30:45,523 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:30:45,523 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:30:45,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c [2024-12-05 23:30:48,130 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/bin/ukojak-verify-CZk0znPC7b/data/930b18634/a9cc98462e9842e5908d82267a4d7154/FLAG35fb553c1 [2024-12-05 23:30:48,317 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:30:48,318 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c [2024-12-05 23:30:48,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/bin/ukojak-verify-CZk0znPC7b/data/930b18634/a9cc98462e9842e5908d82267a4d7154/FLAG35fb553c1 [2024-12-05 23:30:48,710 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/bin/ukojak-verify-CZk0znPC7b/data/930b18634/a9cc98462e9842e5908d82267a4d7154 [2024-12-05 23:30:48,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:30:48,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:30:48,714 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:30:48,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:30:48,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:30:48,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9eddb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48, skipping insertion in model container [2024-12-05 23:30:48,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:30:48,838 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_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c[524,537] [2024-12-05 23:30:48,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:30:48,860 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:30:48,868 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_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c[524,537] [2024-12-05 23:30:48,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:30:48,885 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:30:48,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48 WrapperNode [2024-12-05 23:30:48,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:30:48,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:30:48,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:30:48,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:30:48,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,906 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2024-12-05 23:30:48,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:30:48,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:30:48,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:30:48,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:30:48,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,915 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,916 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:30:48,922 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:30:48,922 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:30:48,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:30:48,924 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:48" (1/1) ... [2024-12-05 23:30:48,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:30:48,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:30:48,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:30:48,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c27ba2b4-0bf6-414b-8736-05df61d1f5a6/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:30:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:30:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-05 23:30:48,971 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-05 23:30:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:30:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:30:48,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:30:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 23:30:48,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 23:30:49,014 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:30:49,015 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:30:49,117 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-05 23:30:49,117 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:30:49,148 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:30:49,148 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 23:30:49,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:30:49 BoogieIcfgContainer [2024-12-05 23:30:49,149 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:30:49,150 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:30:49,150 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:30:49,157 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:30:49,157 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:30:49" (1/1) ... [2024-12-05 23:30:49,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:30:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:30:49,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-12-05 23:30:49,211 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-12-05 23:30:49,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 23:30:49,215 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:30:49,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:30:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:30:49,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:30:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:30:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-12-05 23:30:49,369 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-12-05 23:30:49,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:30:49,370 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:30:49,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:30:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:30:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:30:49,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 23:30:49,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:30:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:30:51,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:30:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-12-05 23:30:51,242 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-12-05 23:30:51,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 23:30:51,243 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:30:51,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:30:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:30:51,369 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:30:51,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:30:51,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2024-12-05 23:30:51,691 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-12-05 23:30:51,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-05 23:30:51,692 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:30:51,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:30:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:30:52,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:30:54,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:30:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:30:57,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-12-05 23:30:57,576 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-12-05 23:30:57,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-05 23:30:57,577 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:30:57,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:30:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:30:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:30:57,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-05 23:30:57,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:31:01,976 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 23:31:27,421 WARN L286 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 31 DAG size of output: 28 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:31:59,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:32:00,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:32:19,351 WARN L286 SmtUtils]: Spent 9.38s on a formula simplification. DAG size of input: 48 DAG size of output: 25 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:32:31,731 WARN L286 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 49 DAG size of output: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:32:44,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.64s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:32:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:32:44,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 53 transitions. [2024-12-05 23:32:44,875 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2024-12-05 23:32:44,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-05 23:32:44,876 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:32:44,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:32:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:45,061 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:33:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:33:29,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 38 states and 64 transitions. [2024-12-05 23:33:29,565 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 64 transitions. [2024-12-05 23:33:29,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-05 23:33:29,566 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:33:29,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:33:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:33:29,619 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:33:30,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:33:30,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 67 transitions. [2024-12-05 23:33:30,206 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 67 transitions. [2024-12-05 23:33:30,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 23:33:30,207 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:33:30,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:33:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:33:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 23:34:10,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:34:11,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:34:12,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:34:12,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 44 states and 80 transitions. [2024-12-05 23:34:12,006 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 80 transitions. [2024-12-05 23:34:12,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 23:34:12,007 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:34:12,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:34:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:34:12,086 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 23:35:09,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:35:09,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 48 states and 91 transitions. [2024-12-05 23:35:09,735 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 91 transitions. [2024-12-05 23:35:09,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 23:35:09,736 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:35:09,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:35:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:35:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:35:09,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-05 23:35:09,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:35:54,046 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-05 23:37:40,992 WARN L286 SmtUtils]: Spent 16.25s on a formula simplification. DAG size of input: 57 DAG size of output: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:38:02,458 WARN L286 SmtUtils]: Spent 12.66s on a formula simplification. DAG size of input: 58 DAG size of output: 51 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:39:21,720 WARN L286 SmtUtils]: Spent 16.90s 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) [2024-12-05 23:39:22,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:39:24,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:40:08,122 WARN L286 SmtUtils]: Spent 22.92s 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) [2024-12-05 23:40:38,446 WARN L286 SmtUtils]: Spent 7.12s 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) [2024-12-05 23:40:53,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.29s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:41:07,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.45s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:41:10,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:41:11,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:41:11,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 55 states and 112 transitions. [2024-12-05 23:41:11,179 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 112 transitions. [2024-12-05 23:41:11,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 23:41:11,180 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:41:11,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:41:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:41:11,246 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-05 23:41:39,828 WARN L286 SmtUtils]: Spent 6.84s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:42:33,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:42:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:42:33,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 57 states and 114 transitions. [2024-12-05 23:42:33,416 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 114 transitions. [2024-12-05 23:42:33,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-05 23:42:33,417 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:42:33,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:42:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:42:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:42:33,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-05 23:42:33,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:43:22,753 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:44:11,023 WARN L286 SmtUtils]: Spent 10.05s on a formula simplification. DAG size of input: 57 DAG size of output: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:44:33,405 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification. DAG size of input: 58 DAG size of output: 51 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-05 23:45:50,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-05 23:45:54,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []