./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.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_4b73769b-e28a-4b72-96ee-85edc36ecf5d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/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_4b73769b-e28a-4b72-96ee-85edc36ecf5d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/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_4b73769b-e28a-4b72-96ee-85edc36ecf5d/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 d6a7b66d62d8261743d542694624b328b551f76289ee08b3039b7ca01c3c317e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:14:06,476 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:14:06,526 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 02:14:06,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:14:06,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:14:06,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:14:06,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:14:06,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:14:06,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:14:06,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:14:06,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:14:06,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:14:06,549 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 02:14:06,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:14:06,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 02:14:06,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:14:06,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:14:06,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:14:06,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:14:06,550 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 02:14:06,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:14:06,550 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:14:06,550 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:14:06,550 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:14:06,550 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:14:06,550 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:14:06,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:14:06,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:14:06,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:14:06,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:14:06,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:14:06,551 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:14:06,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:14:06,551 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_4b73769b-e28a-4b72-96ee-85edc36ecf5d/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 -> d6a7b66d62d8261743d542694624b328b551f76289ee08b3039b7ca01c3c317e [2024-12-06 02:14:06,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:14:06,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:14:06,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:14:06,796 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:14:06,797 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:14:06,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c [2024-12-06 02:14:09,448 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/bin/ukojak-verify-CZk0znPC7b/data/4c578a949/c7fbb95d6ea343f49b9e09cd847bdcd2/FLAGbe4921bf9 [2024-12-06 02:14:09,645 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:14:09,646 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c [2024-12-06 02:14:09,653 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/bin/ukojak-verify-CZk0znPC7b/data/4c578a949/c7fbb95d6ea343f49b9e09cd847bdcd2/FLAGbe4921bf9 [2024-12-06 02:14:09,667 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/bin/ukojak-verify-CZk0znPC7b/data/4c578a949/c7fbb95d6ea343f49b9e09cd847bdcd2 [2024-12-06 02:14:09,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:14:09,671 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:14:09,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:14:09,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:14:09,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:14:09,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a45075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09, skipping insertion in model container [2024-12-06 02:14:09,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,692 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:14:09,819 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_4b73769b-e28a-4b72-96ee-85edc36ecf5d/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c[524,537] [2024-12-06 02:14:09,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:14:09,846 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:14:09,855 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_4b73769b-e28a-4b72-96ee-85edc36ecf5d/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound20.c[524,537] [2024-12-06 02:14:09,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:14:09,875 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:14:09,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09 WrapperNode [2024-12-06 02:14:09,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:14:09,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:14:09,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:14:09,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:14:09,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,906 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-12-06 02:14:09,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:14:09,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:14:09,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:14:09,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:14:09,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,919 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:14:09,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:14:09,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:14:09,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:14:09,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:14:09" (1/1) ... [2024-12-06 02:14:09,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:14:09,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:14:09,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:14:09,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b73769b-e28a-4b72-96ee-85edc36ecf5d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:14:09,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:14:09,985 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 02:14:09,985 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 02:14:09,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:14:09,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:14:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:14:09,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 02:14:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 02:14:10,039 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:14:10,041 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:14:10,173 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-06 02:14:10,174 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:14:10,241 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:14:10,241 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 02:14:10,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:14:10 BoogieIcfgContainer [2024-12-06 02:14:10,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:14:10,242 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:14:10,242 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:14:10,250 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:14:10,250 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:14:10" (1/1) ... [2024-12-06 02:14:10,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:14:10,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:14:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2024-12-06 02:14:10,294 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2024-12-06 02:14:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-06 02:14:10,297 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:14:10,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:14:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:14:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:14:10,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-06 02:14:10,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:14:10,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 02:14:10,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:14:10,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 32 transitions. [2024-12-06 02:14:10,842 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2024-12-06 02:14:10,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 02:14:10,843 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:14:10,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:14:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:14:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:14:10,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-06 02:14:10,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:14:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 02:14:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:14:11,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 27 states and 44 transitions. [2024-12-06 02:14:11,504 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 44 transitions. [2024-12-06 02:14:11,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 02:14:11,505 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:14:11,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:14:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:14:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:14:11,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-06 02:14:11,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:14:12,539 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 02:14:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:14:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 30 states and 54 transitions. [2024-12-06 02:14:13,912 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 54 transitions. [2024-12-06 02:14:13,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 02:14:13,914 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:14:13,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:14:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:14:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:14:13,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-06 02:14:13,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:14:14,008 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-06 02:14:14,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:14:14,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 31 states and 56 transitions. [2024-12-06 02:14:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 56 transitions. [2024-12-06 02:14:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 02:14:14,230 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:14:14,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:14:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:14:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:14:14,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-06 02:14:14,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:14:16,949 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-06 02:14:40,063 WARN L286 SmtUtils]: Spent 21.33s on a formula simplification. DAG size of input: 64 DAG size of output: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:14:42,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:14:42,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 33 states and 62 transitions. [2024-12-06 02:14:42,635 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 62 transitions. [2024-12-06 02:14:42,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 02:14:42,636 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:14:42,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:14:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:14:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:14:42,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-06 02:14:42,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:14:43,788 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-06 02:15:04,313 WARN L286 SmtUtils]: Spent 10.08s 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 02:15:25,226 WARN L286 SmtUtils]: Spent 10.12s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:15:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:15:26,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 35 states and 74 transitions. [2024-12-06 02:15:26,787 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 74 transitions. [2024-12-06 02:15:26,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 02:15:26,788 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:15:26,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:15:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:15:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:15:26,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-06 02:15:26,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:15:29,697 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-06 02:15:58,632 WARN L286 SmtUtils]: Spent 17.04s on a formula simplification. DAG size of input: 91 DAG size of output: 82 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:16:18,112 WARN L286 SmtUtils]: Spent 10.52s on a formula simplification that was a NOOP. DAG size: 83 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:16:18,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:16:18,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 36 states and 76 transitions. [2024-12-06 02:16:18,412 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 76 transitions. [2024-12-06 02:16:18,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-12-06 02:16:18,413 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:16:18,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:16:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:16:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:16:18,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 02:16:18,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:16:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-06 02:19:46,163 WARN L286 SmtUtils]: Spent 2.11m on a formula simplification. DAG size of input: 55 DAG size of output: 29 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:20:38,245 WARN L286 SmtUtils]: Spent 41.26s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:20:39,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:20:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 38 states and 79 transitions. [2024-12-06 02:20:39,802 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 79 transitions. [2024-12-06 02:20:39,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-12-06 02:20:39,803 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:20:39,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:20:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:20:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:20:40,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-06 02:20:40,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:20:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-06 02:21:35,730 WARN L286 SmtUtils]: Spent 15.44s on a formula simplification. DAG size of input: 138 DAG size of output: 105 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:22:21,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.00s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 02:22:23,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 02:22:25,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:22:25,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 40 states and 87 transitions. [2024-12-06 02:22:25,256 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 87 transitions. [2024-12-06 02:22:25,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-12-06 02:22:25,259 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:22:25,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:22:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:22:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:22:25,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-06 02:22:25,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:22:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-06 02:23:07,549 WARN L286 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 395 DAG size of output: 209 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:23:44,301 WARN L286 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 397 DAG size of output: 286 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:24:26,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 02:24:31,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 02:24:33,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 02:24:35,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-12-06 02:24:36,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:24:36,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 42 states and 98 transitions. [2024-12-06 02:24:36,103 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 98 transitions. [2024-12-06 02:24:36,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-06 02:24:36,104 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:24:36,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:24:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:24:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:24:36,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-12-06 02:24:36,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:25:22,496 WARN L286 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 297 DAG size of output: 293 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 02:25:40,446 WARN L286 SmtUtils]: Spent 11.47s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-06 02:25:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-06 02:26:08,983 WARN L286 SmtUtils]: Spent 14.97s on a formula simplification. DAG size of input: 118 DAG size of output: 80 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)