./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array20_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/array-patterns/array20_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC --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 4595fcce7ed27c87f4b36557925b67d85fd0fff83d482c199564b06ae0d3b884 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:02:51,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:02:51,417 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-23 20:02:51,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:02:51,423 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:02:51,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:02:51,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:02:51,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:02:51,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:02:51,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:02:51,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:02:51,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:02:51,452 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:02:51,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:02:51,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:02:51,454 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:02:51,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:02:51,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:02:51,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:02:51,456 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:02:51,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:02:51,465 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:02:51,465 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:02:51,465 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:02:51,466 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:02:51,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:02:51,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:02:51,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:02:51,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:02:51,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:02:51,470 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:02:51,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:02:51,471 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:02:51,471 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4595fcce7ed27c87f4b36557925b67d85fd0fff83d482c199564b06ae0d3b884 [2023-11-23 20:02:51,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:02:51,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:02:51,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:02:51,857 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:02:51,857 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:02:51,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/array-patterns/array20_pattern.c [2023-11-23 20:02:55,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:02:55,349 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:02:55,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/sv-benchmarks/c/array-patterns/array20_pattern.c [2023-11-23 20:02:55,371 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/data/55f368f18/0a66c824f9cc400cb0a27e4860499221/FLAG6323884ac [2023-11-23 20:02:55,395 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/data/55f368f18/0a66c824f9cc400cb0a27e4860499221 [2023-11-23 20:02:55,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:02:55,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:02:55,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:02:55,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:02:55,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:02:55,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7edb2b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55, skipping insertion in model container [2023-11-23 20:02:55,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,450 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:02:55,661 WARN L240 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_a9fb3dbc-8779-45b8-94cb-869d510a067a/sv-benchmarks/c/array-patterns/array20_pattern.c[1444,1457] [2023-11-23 20:02:55,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:02:55,712 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:02:55,732 WARN L240 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_a9fb3dbc-8779-45b8-94cb-869d510a067a/sv-benchmarks/c/array-patterns/array20_pattern.c[1444,1457] [2023-11-23 20:02:55,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:02:55,763 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:02:55,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55 WrapperNode [2023-11-23 20:02:55,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:02:55,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:02:55,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:02:55,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:02:55,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,841 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2023-11-23 20:02:55,842 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:02:55,843 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:02:55,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:02:55,843 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:02:55,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,892 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:02:55,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:02:55,895 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:02:55,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:02:55,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:55" (1/1) ... [2023-11-23 20:02:55,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:02:55,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:02:55,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:02:55,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9fb3dbc-8779-45b8-94cb-869d510a067a/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:02:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:02:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:02:55,992 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:02:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:02:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:02:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:02:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:02:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:02:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:02:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:02:56,106 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:02:56,109 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:02:56,336 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:02:56,505 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:02:56,505 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 20:02:56,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:56 BoogieIcfgContainer [2023-11-23 20:02:56,507 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:02:56,508 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:02:56,508 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:02:56,519 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:02:56,519 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:56" (1/1) ... [2023-11-23 20:02:56,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:02:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:56,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2023-11-23 20:02:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2023-11-23 20:02:56,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:02:56,593 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:56,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:02:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:02:56,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:02:56,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:02:56,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:02:56,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2023-11-23 20:02:56,809 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-11-23 20:02:56,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:02:56,810 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:56,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:02:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:02:56,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:02:56,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:02:57,006 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:02:57,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:57,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2023-11-23 20:02:57,185 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2023-11-23 20:02:57,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:02:57,186 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:57,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:02:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:02:57,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:02:57,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:02:57,335 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:02:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 37 states and 58 transitions. [2023-11-23 20:02:57,782 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2023-11-23 20:02:57,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:02:57,784 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:57,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:02:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:02:57,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:02:57,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:02:57,939 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:02:58,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:58,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 39 states and 65 transitions. [2023-11-23 20:02:58,130 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 65 transitions. [2023-11-23 20:02:58,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:02:58,133 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:58,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:02:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:02:58,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:02:58,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:02:58,267 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 20:02:58,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:58,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 48 states and 82 transitions. [2023-11-23 20:02:58,603 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 82 transitions. [2023-11-23 20:02:58,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:02:58,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:58,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:02:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:02:58,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:02:58,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:02:58,759 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 20:02:58,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 51 states and 88 transitions. [2023-11-23 20:02:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 88 transitions. [2023-11-23 20:02:58,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:02:58,971 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:58,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:02:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:02:59,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:02:59,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:02:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:02:59,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:59,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 53 states and 94 transitions. [2023-11-23 20:02:59,627 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 94 transitions. [2023-11-23 20:02:59,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:02:59,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:59,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:02:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:02:59,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-23 20:02:59,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:03:00,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-11-23 20:03:00,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 11 [2023-11-23 20:03:01,235 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:03:03,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:03:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 51 states and 98 transitions. [2023-11-23 20:03:03,484 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 98 transitions. [2023-11-23 20:03:03,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:03:03,485 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:03:03,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:03:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:03:03,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-23 20:03:03,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:03:03,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-11-23 20:03:05,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 1107 treesize of output 1057 [2023-11-23 20:03:23,801 WARN L293 SmtUtils]: Spent 17.93s on a formula simplification. DAG size of input: 568 DAG size of output: 103 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-23 20:03:23,801 INFO L349 Elim1Store]: treesize reduction 6853, result has 6.3 percent of original size [2023-11-23 20:03:23,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 8 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 108 case distinctions, treesize of input 1269 treesize of output 5320