./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_lcm2.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_806dc756-bf33-43d7-b58d-f7ea0af12289/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806dc756-bf33-43d7-b58d-f7ea0af12289/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_806dc756-bf33-43d7-b58d-f7ea0af12289/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806dc756-bf33-43d7-b58d-f7ea0af12289/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_lcm2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806dc756-bf33-43d7-b58d-f7ea0af12289/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_806dc756-bf33-43d7-b58d-f7ea0af12289/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 d93bd48e791c000b7768d0e055259ea6d087a487fbdd17b18765993d4c240b84 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:47:33,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:47:33,198 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806dc756-bf33-43d7-b58d-f7ea0af12289/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 22:47:33,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:47:33,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:47:33,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:47:33,233 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:47:33,234 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:47:33,234 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:47:33,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:47:33,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:47:33,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:47:33,235 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 22:47:33,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:47:33,235 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 22:47:33,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:47:33,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:47:33,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:47:33,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:47:33,235 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:47:33,236 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 22:47:33,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:47:33,237 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:47:33,237 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:47:33,237 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:47:33,237 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:47:33,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:47:33,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:47:33,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:47:33,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:47:33,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:47:33,238 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:47:33,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:47:33,239 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_806dc756-bf33-43d7-b58d-f7ea0af12289/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 -> d93bd48e791c000b7768d0e055259ea6d087a487fbdd17b18765993d4c240b84 [2024-11-13 22:47:33,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:47:33,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:47:33,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:47:33,677 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:47:33,678 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:47:33,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806dc756-bf33-43d7-b58d-f7ea0af12289/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/recursified_nla-digbench/recursified_lcm2.c Unable to find full path for "g++" [2024-11-13 22:47:36,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:47:36,455 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:47:36,456 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806dc756-bf33-43d7-b58d-f7ea0af12289/sv-benchmarks/c/recursified_nla-digbench/recursified_lcm2.c [2024-11-13 22:47:36,471 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806dc756-bf33-43d7-b58d-f7ea0af12289/bin/ukojak-verify-EEHR8qb7sm/data/a52d7c546/721d694fcfb04f95aba0536e58047549/FLAGef3414b60 [2024-11-13 22:47:36,499 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806dc756-bf33-43d7-b58d-f7ea0af12289/bin/ukojak-verify-EEHR8qb7sm/data/a52d7c546/721d694fcfb04f95aba0536e58047549 [2024-11-13 22:47:36,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:47:36,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:47:36,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:47:36,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:47:36,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:47:36,518 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:36,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29944878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36, skipping insertion in model container [2024-11-13 22:47:36,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:36,548 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:47:36,798 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_806dc756-bf33-43d7-b58d-f7ea0af12289/sv-benchmarks/c/recursified_nla-digbench/recursified_lcm2.c[1061,1074] [2024-11-13 22:47:36,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:47:36,855 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:47:36,875 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_806dc756-bf33-43d7-b58d-f7ea0af12289/sv-benchmarks/c/recursified_nla-digbench/recursified_lcm2.c[1061,1074] [2024-11-13 22:47:36,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:47:36,933 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:47:36,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36 WrapperNode [2024-11-13 22:47:36,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:47:36,936 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:47:36,936 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:47:36,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:47:36,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:36,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:36,993 INFO L138 Inliner]: procedures = 16, calls = 82, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 92 [2024-11-13 22:47:36,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:47:36,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:47:36,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:47:36,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:47:37,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:37,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:37,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:37,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:37,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:37,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:37,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:37,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:37,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:47:37,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:47:37,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:47:37,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:47:37,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:47:36" (1/1) ... [2024-11-13 22:47:37,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:47:37,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806dc756-bf33-43d7-b58d-f7ea0af12289/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:47:37,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806dc756-bf33-43d7-b58d-f7ea0af12289/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:47:37,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806dc756-bf33-43d7-b58d-f7ea0af12289/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:47:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:47:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 22:47:37,155 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 22:47:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:47:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 22:47:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 22:47:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:47:37,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:47:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 22:47:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 22:47:37,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 22:47:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 22:47:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_35_to_46_0 [2024-11-13 22:47:37,156 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_35_to_46_0 [2024-11-13 22:47:37,308 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:47:37,311 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:47:37,723 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 22:47:37,723 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:47:37,846 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:47:37,847 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 22:47:37,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:47:37 BoogieIcfgContainer [2024-11-13 22:47:37,848 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:47:37,849 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:47:37,849 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:47:37,859 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:47:37,860 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:47:37" (1/1) ... [2024-11-13 22:47:37,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:47:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:47:37,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2024-11-13 22:47:37,942 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-11-13 22:47:37,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 22:47:37,948 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:47:37,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:47:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:47:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:47:39,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-11-13 22:47:39,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:47:39,419 INFO L349 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2024-11-13 22:47:39,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 76 [2024-11-13 22:47:39,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2024-11-13 22:47:40,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:47:40,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:47:40,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:47:40,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:47:40,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:47:40,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 15 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 43 [2024-11-13 22:47:41,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 31 [2024-11-13 22:47:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 22:47:42,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:47:42,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 35 states and 45 transitions. [2024-11-13 22:47:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2024-11-13 22:47:42,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 22:47:42,250 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:47:42,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:47:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:47:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:47:46,767 WARN L253 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 185 conjuncts are in the unsatisfiable core [2024-11-13 22:47:46,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:47:46,821 INFO L349 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2024-11-13 22:47:46,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 76 [2024-11-13 22:47:46,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:47:46,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2024-11-13 22:47:46,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-11-13 22:47:48,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:47:48,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:47:48,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:47:48,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:47:48,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:47:48,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 15 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 48 [2024-11-13 22:48:41,248 WARN L286 SmtUtils]: Spent 11.08s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:48:42,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:48:42,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:48:42,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:48:42,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:48:42,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 182 [2024-11-13 22:48:42,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 121 [2024-11-13 22:48:42,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2024-11-13 22:48:42,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2024-11-13 22:48:42,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 50 [2024-11-13 22:48:42,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 73 [2024-11-13 22:48:42,963 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 22:48:42,968 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 286 [2024-11-13 22:49:04,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:49:04,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:49:04,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:49:04,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:49:04,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:49:04,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:49:04,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:49:04,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:49:04,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:49:04,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 22:49:04,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 116 [2024-11-13 22:49:04,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-13 22:49:04,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-13 22:49:04,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2024-11-13 22:49:04,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2024-11-13 22:49:05,116 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 22:50:58,272 WARN L286 SmtUtils]: Spent 10.66s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:53:10,128 WARN L286 SmtUtils]: Spent 13.38s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:53:11,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-13 22:53:41,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 22:53:56,859 WARN L286 SmtUtils]: Spent 11.82s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 22:53:58,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 22:54:08,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 22:54:09,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 22:58:17,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-13 22:58:19,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-13 22:58:20,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 22:58:27,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 22:58:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:58:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 52 states and 91 transitions. [2024-11-13 22:58:27,687 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2024-11-13 22:58:27,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 22:58:27,690 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:58:27,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:58:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 22:58:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:58:33,623 WARN L253 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-11-13 22:58:33,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:58:33,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2024-11-13 22:58:33,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 21 [2024-11-13 22:58:33,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-11-13 22:58:33,669 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 22:58:33,670 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2024-11-13 22:58:33,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 32 [2024-11-13 22:58:33,683 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 22:58:33,684 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2024-11-13 22:58:33,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 22:58:33,709 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-11-13 22:58:33,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 69 [2024-11-13 22:59:47,105 WARN L286 SmtUtils]: Spent 30.14s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:00:58,928 WARN L286 SmtUtils]: Spent 30.12s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)