./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/hard-u.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_fededd79-926e-467e-88ff-572c4117a5a0/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fededd79-926e-467e-88ff-572c4117a5a0/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_fededd79-926e-467e-88ff-572c4117a5a0/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fededd79-926e-467e-88ff-572c4117a5a0/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/hard-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fededd79-926e-467e-88ff-572c4117a5a0/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_fededd79-926e-467e-88ff-572c4117a5a0/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 98c9c42af626702ddf5387966d0ee6d8ed18622c4592b3b15adb184fa40ea1b1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:43:15,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:43:15,768 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fededd79-926e-467e-88ff-572c4117a5a0/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 22:43:15,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:43:15,777 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:43:15,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:43:15,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:43:15,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:43:15,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:43:15,835 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:43:15,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:43:15,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:43:15,839 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 22:43:15,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:43:15,839 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 22:43:15,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:43:15,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:43:15,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:43:15,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:43:15,840 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:43:15,840 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 22:43:15,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:43:15,840 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:43:15,841 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:43:15,841 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:43:15,841 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:43:15,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:43:15,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:43:15,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:43:15,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:43:15,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:43:15,842 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:43:15,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:43:15,842 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_fededd79-926e-467e-88ff-572c4117a5a0/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 -> 98c9c42af626702ddf5387966d0ee6d8ed18622c4592b3b15adb184fa40ea1b1 [2024-11-13 22:43:16,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:43:16,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:43:16,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:43:16,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:43:16,274 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:43:16,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fededd79-926e-467e-88ff-572c4117a5a0/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench/hard-u.c Unable to find full path for "g++" [2024-11-13 22:43:18,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:43:18,974 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:43:18,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fededd79-926e-467e-88ff-572c4117a5a0/sv-benchmarks/c/nla-digbench/hard-u.c [2024-11-13 22:43:19,005 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fededd79-926e-467e-88ff-572c4117a5a0/bin/ukojak-verify-EEHR8qb7sm/data/206c50206/b1e9316dcf1840e6b87ec5412183c065/FLAG50b68189e [2024-11-13 22:43:19,030 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fededd79-926e-467e-88ff-572c4117a5a0/bin/ukojak-verify-EEHR8qb7sm/data/206c50206/b1e9316dcf1840e6b87ec5412183c065 [2024-11-13 22:43:19,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:43:19,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:43:19,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:43:19,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:43:19,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:43:19,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7567c2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19, skipping insertion in model container [2024-11-13 22:43:19,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,061 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:43:19,289 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_fededd79-926e-467e-88ff-572c4117a5a0/sv-benchmarks/c/nla-digbench/hard-u.c[537,550] [2024-11-13 22:43:19,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:43:19,325 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:43:19,335 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_fededd79-926e-467e-88ff-572c4117a5a0/sv-benchmarks/c/nla-digbench/hard-u.c[537,550] [2024-11-13 22:43:19,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:43:19,360 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:43:19,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19 WrapperNode [2024-11-13 22:43:19,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:43:19,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:43:19,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:43:19,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:43:19,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,398 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2024-11-13 22:43:19,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:43:19,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:43:19,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:43:19,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:43:19,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:43:19,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:43:19,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:43:19,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:43:19,425 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:43:19,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fededd79-926e-467e-88ff-572c4117a5a0/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:43:19,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fededd79-926e-467e-88ff-572c4117a5a0/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:43:19,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fededd79-926e-467e-88ff-572c4117a5a0/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:43:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:43:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:43:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:43:19,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:43:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 22:43:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 22:43:19,574 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:43:19,577 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:43:19,787 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-13 22:43:19,788 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:43:19,867 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:43:19,868 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 22:43:19,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:43:19 BoogieIcfgContainer [2024-11-13 22:43:19,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:43:19,869 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:43:19,870 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:43:19,887 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:43:19,888 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:43:19" (1/1) ... [2024-11-13 22:43:19,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:43:19,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:43:19,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2024-11-13 22:43:19,963 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2024-11-13 22:43:19,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 22:43:19,968 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:43:19,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:43:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:43:20,335 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 22:43:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:43:20,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2024-11-13 22:43:20,462 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2024-11-13 22:43:20,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 22:43:20,464 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:43:20,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:43:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:43:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:43:21,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:43:21,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 47 transitions. [2024-11-13 22:43:21,027 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 47 transitions. [2024-11-13 22:43:21,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 22:43:21,029 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:43:21,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:43:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:43:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:43:21,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 22:43:21,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:43:21,362 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 22:43:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:43:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 31 states and 56 transitions. [2024-11-13 22:43:21,920 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 56 transitions. [2024-11-13 22:43:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 22:43:21,923 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:43:21,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:43:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:43:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:43:22,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 22:43:22,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:43:22,470 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 22:43:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:43:23,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 36 states and 69 transitions. [2024-11-13 22:43:23,266 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2024-11-13 22:43:23,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 22:43:23,267 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:43:23,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:43:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:43:28,186 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 22:43:52,230 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 [] [2024-11-13 22:43:53,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:43:53,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 40 states and 79 transitions. [2024-11-13 22:43:53,346 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 79 transitions. [2024-11-13 22:43:53,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 22:43:53,347 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:43:53,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:43:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:43:53,572 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 22:43:54,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:43:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 43 states and 84 transitions. [2024-11-13 22:43:54,520 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 84 transitions. [2024-11-13 22:43:54,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 22:43:54,525 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:43:54,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:43:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:43:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:43:54,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 22:43:54,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:43:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 22:44:08,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:44:08,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 48 states and 98 transitions. [2024-11-13 22:44:08,668 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 98 transitions. [2024-11-13 22:44:08,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 22:44:08,669 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:44:08,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:44:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:44:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:44:08,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 22:44:08,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:44:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 22:44:10,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:44:10,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 51 states and 103 transitions. [2024-11-13 22:44:10,870 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 103 transitions. [2024-11-13 22:44:10,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 22:44:10,876 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:44:10,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:44:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:44:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:44:10,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 22:44:10,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:44:11,044 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 22:44:12,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:44:12,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 58 states and 122 transitions. [2024-11-13 22:44:12,871 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 122 transitions. [2024-11-13 22:44:12,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 22:44:12,873 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:44:12,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:44:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:44:13,212 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 22:44:16,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:44:16,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 62 states and 132 transitions. [2024-11-13 22:44:16,563 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 132 transitions. [2024-11-13 22:44:16,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 22:44:16,565 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:44:16,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:44:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:44:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-13 22:44:21,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:44:21,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 68 states and 148 transitions. [2024-11-13 22:44:21,135 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 148 transitions. [2024-11-13 22:44:21,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 22:44:21,136 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:44:21,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:44:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:44:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:44:21,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 22:44:21,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:44:42,408 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 22:44:55,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:44:55,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 76 states and 167 transitions. [2024-11-13 22:44:55,990 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 167 transitions. [2024-11-13 22:44:55,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-13 22:44:55,991 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:44:55,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:44:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:44:56,130 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 22:45:07,410 WARN L286 SmtUtils]: Spent 10.12s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:45:17,791 WARN L286 SmtUtils]: Spent 10.13s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:45:28,588 WARN L286 SmtUtils]: Spent 10.20s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:45:39,186 WARN L286 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:45:49,532 WARN L286 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:46:00,333 WARN L286 SmtUtils]: Spent 10.06s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:46:00,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:46:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 79 states and 174 transitions. [2024-11-13 22:46:00,389 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 174 transitions. [2024-11-13 22:46:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-13 22:46:00,391 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:46:00,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:46:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:46:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:00,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 22:46:00,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:46:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 21 proven. 29 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-13 22:46:12,942 WARN L286 SmtUtils]: Spent 10.33s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:46:24,708 WARN L286 SmtUtils]: Spent 10.17s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:46:38,193 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 [] [2024-11-13 22:46:38,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:46:38,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 84 states and 189 transitions. [2024-11-13 22:46:38,231 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 189 transitions. [2024-11-13 22:46:38,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 22:46:38,233 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:46:38,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:46:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:46:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:42,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-13 22:46:42,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:46:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 30 proven. 41 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-13 22:47:10,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:47:10,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 90 states and 204 transitions. [2024-11-13 22:47:10,680 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 204 transitions. [2024-11-13 22:47:10,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 22:47:10,681 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:47:10,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:47:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:47:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:47:10,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 22:47:10,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:47:22,507 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 23 proven. 27 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-13 22:47:56,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 22:47:56,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:47:56,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 92 states and 209 transitions. [2024-11-13 22:47:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 209 transitions. [2024-11-13 22:47:56,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 22:47:56,156 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:47:56,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:47:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:47:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:47:56,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 22:47:56,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:48:47,502 WARN L286 SmtUtils]: Spent 10.24s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:48:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 57 proven. 30 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-13 22:50:12,729 WARN L286 SmtUtils]: Spent 32.44s on a formula simplification. DAG size of input: 33 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:50:38,579 WARN L286 SmtUtils]: Spent 10.96s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:50:52,215 WARN L286 SmtUtils]: Spent 10.23s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:51:05,868 WARN L286 SmtUtils]: Spent 11.43s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:51:43,053 WARN L286 SmtUtils]: Spent 30.76s on a formula simplification. DAG size of input: 42 DAG size of output: 28 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:52:19,176 WARN L286 SmtUtils]: Spent 10.98s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:52:51,952 WARN L286 SmtUtils]: Spent 22.61s on a formula simplification. DAG size of input: 44 DAG size of output: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:53:16,298 WARN L286 SmtUtils]: Spent 10.43s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:53:38,043 WARN L286 SmtUtils]: Spent 10.96s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:53:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:53:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 99 states and 228 transitions. [2024-11-13 22:53:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 228 transitions. [2024-11-13 22:53:39,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 22:53:39,367 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:53:39,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:53:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:53:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-13 22:54:08,268 WARN L286 SmtUtils]: Spent 22.94s on a formula simplification. DAG size of input: 31 DAG size of output: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:54:25,710 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:54:37,658 WARN L286 SmtUtils]: Spent 10.27s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:54:55,498 WARN L286 SmtUtils]: Spent 11.82s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:54:56,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 22:55:23,162 WARN L286 SmtUtils]: Spent 10.73s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:55:43,833 WARN L286 SmtUtils]: Spent 10.39s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:56:09,026 WARN L286 SmtUtils]: Spent 10.27s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:56:36,916 WARN L286 SmtUtils]: Spent 11.20s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:56:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:56:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 102 states and 234 transitions. [2024-11-13 22:56:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 234 transitions. [2024-11-13 22:56:37,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 22:56:37,416 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:56:37,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:56:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:56:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:56:37,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-13 22:56:37,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:56:55,409 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 17 proven. 75 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-13 22:57:15,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 22:57:25,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 22:57:36,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 22:58:09,912 WARN L539 Checker$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 22:58:18,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:58:18,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 102 states and 233 transitions. [2024-11-13 22:58:18,260 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 233 transitions. [2024-11-13 22:58:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 22:58:18,261 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:58:18,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:58:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat