./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/prod4br-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/prod4br-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm --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 9fc373a278835802938e4c08f2544f1651ce1de6dc177c0a58501e43687c477d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:58:20,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:58:21,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 16:58:21,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:58:21,075 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:58:21,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:58:21,121 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:58:21,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:58:21,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:58:21,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:58:21,123 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:58:21,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:58:21,124 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:58:21,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:58:21,124 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:58:21,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:58:21,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:58:21,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:58:21,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:58:21,124 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:58:21,124 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:58:21,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:58:21,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:58:21,125 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:58:21,125 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:58:21,125 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:58:21,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:58:21,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:58:21,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:58:21,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:58:21,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:58:21,126 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:58:21,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:58:21,126 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_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm 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 -> 9fc373a278835802938e4c08f2544f1651ce1de6dc177c0a58501e43687c477d [2024-11-13 16:58:21,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:58:21,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:58:21,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:58:21,500 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:58:21,500 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:58:21,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench/prod4br-ll.c Unable to find full path for "g++" [2024-11-13 16:58:23,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:58:23,730 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:58:23,733 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/sv-benchmarks/c/nla-digbench/prod4br-ll.c [2024-11-13 16:58:23,741 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/data/898cf4750/a199774932794c0cb9c6917a365e5b06/FLAG8b4a0363a [2024-11-13 16:58:23,757 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/data/898cf4750/a199774932794c0cb9c6917a365e5b06 [2024-11-13 16:58:23,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:58:23,761 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:58:23,763 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:58:23,763 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:58:23,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:58:23,769 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:23,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c3cbf95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23, skipping insertion in model container [2024-11-13 16:58:23,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:23,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:58:23,924 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_9ebeafa3-af2f-42bb-873a-84ce809f4303/sv-benchmarks/c/nla-digbench/prod4br-ll.c[524,537] [2024-11-13 16:58:23,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:58:23,953 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:58:23,964 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_9ebeafa3-af2f-42bb-873a-84ce809f4303/sv-benchmarks/c/nla-digbench/prod4br-ll.c[524,537] [2024-11-13 16:58:23,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:58:23,988 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:58:23,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23 WrapperNode [2024-11-13 16:58:23,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:58:23,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:58:23,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:58:23,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:58:23,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:24,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:24,021 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-11-13 16:58:24,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:58:24,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:58:24,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:58:24,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:58:24,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:24,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:24,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:24,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:24,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:24,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:24,039 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:24,040 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:24,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:58:24,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:58:24,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:58:24,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:58:24,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:23" (1/1) ... [2024-11-13 16:58:24,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:58:24,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:58:24,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:58:24,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ebeafa3-af2f-42bb-873a-84ce809f4303/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:58:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:58:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:58:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:58:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:58:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:58:24,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:58:24,187 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:58:24,189 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:58:24,357 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-13 16:58:24,357 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:58:24,461 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:58:24,461 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:58:24,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:58:24 BoogieIcfgContainer [2024-11-13 16:58:24,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:58:24,462 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:58:24,462 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:58:24,474 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:58:24,474 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:58:24" (1/1) ... [2024-11-13 16:58:24,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:58:24,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:58:24,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2024-11-13 16:58:24,554 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-11-13 16:58:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 16:58:24,556 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:58:24,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:58:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:58:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:58:24,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:58:24,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:58:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:58:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:58:25,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2024-11-13 16:58:25,008 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2024-11-13 16:58:25,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 16:58:25,012 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:58:25,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:58:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:58:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:58:25,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:58:25,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:58:35,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:58:36,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:58:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 24 states and 41 transitions. [2024-11-13 16:58:36,797 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 41 transitions. [2024-11-13 16:58:36,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 16:58:36,797 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:58:36,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:58:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:58:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:58:36,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 16:58:36,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:58:38,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:58:40,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:58:40,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 27 states and 49 transitions. [2024-11-13 16:58:40,753 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 49 transitions. [2024-11-13 16:58:40,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 16:58:40,754 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:58:40,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:58:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:58:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:58:40,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 16:58:40,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:58:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:58:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:58:41,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 29 states and 56 transitions. [2024-11-13 16:58:41,875 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 56 transitions. [2024-11-13 16:58:41,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 16:58:41,876 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:58:41,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:58:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:58:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:58:41,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 16:58:41,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:58:42,508 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 16:58:45,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 16:58:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:58:45,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 31 states and 59 transitions. [2024-11-13 16:58:45,967 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 59 transitions. [2024-11-13 16:58:45,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 16:58:45,967 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:58:45,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:58:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:58:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:58:46,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 16:58:46,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:59:05,427 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:59:36,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 16:59:39,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 16:59:42,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 16:59:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:59:42,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 34 states and 67 transitions. [2024-11-13 16:59:42,116 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 67 transitions. [2024-11-13 16:59:42,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 16:59:42,117 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:59:42,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:59:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:59:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:59:42,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 16:59:42,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:59:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 17:00:05,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 17:00:05,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 35 states and 71 transitions. [2024-11-13 17:00:05,207 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 71 transitions. [2024-11-13 17:00:05,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 17:00:05,208 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 17:00:05,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 17:00:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 17:00:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 17:00:05,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 17:00:05,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 17:00:05,402 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 17:00:06,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 17:00:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 36 states and 73 transitions. [2024-11-13 17:00:06,490 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 73 transitions. [2024-11-13 17:00:06,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 17:00:06,491 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 17:00:06,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 17:00:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 17:00:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 17:00:07,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-13 17:00:07,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 17:01:25,880 WARN L286 SmtUtils]: Spent 20.21s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:01:36,118 WARN L286 SmtUtils]: Spent 10.24s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:01:46,319 WARN L286 SmtUtils]: Spent 10.19s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:01:56,572 WARN L286 SmtUtils]: Spent 10.25s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:02:06,795 WARN L286 SmtUtils]: Spent 10.22s 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) [2024-11-13 17:02:13,585 WARN L286 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 4 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:02:44,429 WARN L286 SmtUtils]: Spent 10.21s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:02:54,644 WARN L286 SmtUtils]: Spent 10.21s 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) [2024-11-13 17:03:04,887 WARN L286 SmtUtils]: Spent 10.24s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:03:22,142 WARN L286 SmtUtils]: Spent 11.53s on a formula simplification. DAG size of input: 4 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:03:22,908 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 17:03:57,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 17:04:16,217 WARN L286 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 17:05:22,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 17:05:44,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 17:05:55,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 17:06:05,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.93s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 17:06:05,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 17:06:05,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 42 states and 88 transitions. [2024-11-13 17:06:05,240 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 88 transitions. [2024-11-13 17:06:05,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 17:06:05,244 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 17:06:05,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 17:06:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 17:06:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 17:06:07,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-13 17:06:07,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 17:06:51,398 WARN L286 SmtUtils]: Spent 7.91s on a formula simplification. DAG size of input: 5 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:07:02,937 WARN L286 SmtUtils]: Spent 11.02s 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) [2024-11-13 17:07:22,345 WARN L286 SmtUtils]: Spent 14.33s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:07:36,408 WARN L286 SmtUtils]: Spent 14.06s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:07:52,661 WARN L286 SmtUtils]: Spent 10.89s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:08:08,117 WARN L286 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:08:14,667 WARN L286 SmtUtils]: Spent 6.30s 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) [2024-11-13 17:08:27,966 WARN L286 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:08:40,395 WARN L286 SmtUtils]: Spent 10.64s 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) [2024-11-13 17:08:50,944 WARN L286 SmtUtils]: Spent 10.49s 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) [2024-11-13 17:09:01,002 WARN L286 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:09:11,133 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:09:21,224 WARN L286 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 17:09:35,121 WARN L286 SmtUtils]: Spent 10.75s 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) [2024-11-13 17:09:47,673 WARN L286 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)