./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array4_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/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_ed8a8fba-28af-456d-9631-6bae54f63144/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/array-patterns/array4_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/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_ed8a8fba-28af-456d-9631-6bae54f63144/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 51462516d41bb1edc1c2003475b488124e11e4eb166822052c5d908cea262957 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:18:52,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:18:52,917 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-23 20:18:52,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:18:52,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:18:52,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:18:52,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:18:52,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:18:52,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:18:52,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:18:52,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:18:52,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:18:52,978 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:18:52,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:18:52,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:18:52,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:18:52,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:18:52,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:18:52,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:18:52,983 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:18:52,984 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:18:52,984 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:18:52,985 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:18:52,986 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:18:52,986 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:18:52,987 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:18:52,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:18:52,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:18:52,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:18:52,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:18:52,992 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:18:52,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:18:52,994 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:18:52,994 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_ed8a8fba-28af-456d-9631-6bae54f63144/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51462516d41bb1edc1c2003475b488124e11e4eb166822052c5d908cea262957 [2023-11-23 20:18:53,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:18:53,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:18:53,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:18:53,380 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:18:53,384 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:18:53,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/array-patterns/array4_pattern.c [2023-11-23 20:18:56,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:18:56,845 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:18:56,846 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/sv-benchmarks/c/array-patterns/array4_pattern.c [2023-11-23 20:18:56,855 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/bin/ukojak-verify-1t5iHCbJaC/data/428d003f6/0ff5d5a5d21646c4935eeff1d1871c77/FLAG25b8c9f5d [2023-11-23 20:18:56,873 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/bin/ukojak-verify-1t5iHCbJaC/data/428d003f6/0ff5d5a5d21646c4935eeff1d1871c77 [2023-11-23 20:18:56,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:18:56,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:18:56,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:18:56,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:18:56,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:18:56,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:18:56" (1/1) ... [2023-11-23 20:18:56,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1aed9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:56, skipping insertion in model container [2023-11-23 20:18:56,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:18:56" (1/1) ... [2023-11-23 20:18:56,916 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:18:57,135 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_ed8a8fba-28af-456d-9631-6bae54f63144/sv-benchmarks/c/array-patterns/array4_pattern.c[1835,1848] [2023-11-23 20:18:57,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:18:57,192 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:18:57,209 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_ed8a8fba-28af-456d-9631-6bae54f63144/sv-benchmarks/c/array-patterns/array4_pattern.c[1835,1848] [2023-11-23 20:18:57,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:18:57,269 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:18:57,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57 WrapperNode [2023-11-23 20:18:57,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:18:57,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:18:57,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:18:57,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:18:57,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,334 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2023-11-23 20:18:57,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:18:57,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:18:57,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:18:57,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:18:57,347 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:18:57,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:18:57,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:18:57,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:18:57,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:18:57,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:18:57,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:18:57,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8a8fba-28af-456d-9631-6bae54f63144/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:18:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:18:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:18:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:18:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:18:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:18:57,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:18:57,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:18:57,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:18:57,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:18:57,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:18:57,548 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:18:57,551 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:18:57,775 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:18:57,895 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:18:57,895 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 20:18:57,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:18:57 BoogieIcfgContainer [2023-11-23 20:18:57,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:18:57,900 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:18:57,901 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:18:57,914 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:18:57,914 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:18:57" (1/1) ... [2023-11-23 20:18:57,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:18:57,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:18:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2023-11-23 20:18:58,006 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-11-23 20:18:58,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:18:58,012 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:18:58,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:18:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:18:58,204 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 20:18:58,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:18:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2023-11-23 20:18:58,242 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-11-23 20:18:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 20:18:58,243 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:18:58,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:18:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:18:58,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:18:58,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:18:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 20:18:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:18:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 24 states and 33 transitions. [2023-11-23 20:18:58,671 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-11-23 20:18:58,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 20:18:58,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:18:58,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:18:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:18:58,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:18:58,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:18:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:18:59,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:18:59,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 36 states and 55 transitions. [2023-11-23 20:18:59,380 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 55 transitions. [2023-11-23 20:18:59,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:18:59,382 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:18:59,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:18:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:18:59,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-23 20:18:59,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:18:59,541 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 10 treesize of output 8 [2023-11-23 20:18:59,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2023-11-23 20:18:59,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 20:19:00,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2023-11-23 20:19:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:19:03,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:03,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 48 states and 81 transitions. [2023-11-23 20:19:03,222 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 81 transitions. [2023-11-23 20:19:03,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:19:03,224 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:03,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:03,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-23 20:19:03,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:19:03,357 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 10 treesize of output 8 [2023-11-23 20:19:04,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2023-11-23 20:19:04,173 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:19:06,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 46 states and 75 transitions. [2023-11-23 20:19:06,127 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 75 transitions. [2023-11-23 20:19:06,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 20:19:06,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:06,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:06,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:19:06,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:19:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:19:08,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:08,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 56 states and 97 transitions. [2023-11-23 20:19:08,967 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 97 transitions. [2023-11-23 20:19:08,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 20:19:08,968 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:08,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:09,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:19:09,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:19:09,354 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:19:11,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:11,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 65 states and 111 transitions. [2023-11-23 20:19:11,044 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 111 transitions. [2023-11-23 20:19:11,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 20:19:11,045 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:11,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:11,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 59 conjunts are in the unsatisfiable core [2023-11-23 20:19:11,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:19:11,125 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 10 treesize of output 8 [2023-11-23 20:19:11,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-23 20:19:11,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2023-11-23 20:19:14,258 INFO L349 Elim1Store]: treesize reduction 52, result has 46.4 percent of original size [2023-11-23 20:19:14,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 77 [2023-11-23 20:19:15,022 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-11-23 20:19:15,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 46 [2023-11-23 20:19:15,036 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:19:22,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 78 states and 140 transitions. [2023-11-23 20:19:22,749 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 140 transitions. [2023-11-23 20:19:22,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 20:19:22,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:22,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:22,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-23 20:19:22,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:19:22,825 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 10 treesize of output 8 [2023-11-23 20:19:22,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-23 20:19:22,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2023-11-23 20:19:24,680 INFO L349 Elim1Store]: treesize reduction 52, result has 46.4 percent of original size [2023-11-23 20:19:24,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 77 [2023-11-23 20:19:24,995 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2023-11-23 20:19:24,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 46 [2023-11-23 20:19:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:19:28,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:28,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 87 states and 156 transitions. [2023-11-23 20:19:28,354 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 156 transitions. [2023-11-23 20:19:28,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:19:28,356 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:28,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:28,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:19:28,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:19:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:19:36,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:36,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 100 states and 194 transitions. [2023-11-23 20:19:36,558 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 194 transitions. [2023-11-23 20:19:36,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:19:36,560 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:36,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:36,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:19:36,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:19:36,815 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:19:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 109 states and 208 transitions. [2023-11-23 20:19:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 208 transitions. [2023-11-23 20:19:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:19:41,065 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:41,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:41,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:19:41,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:19:41,286 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:19:42,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:42,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 114 states and 215 transitions. [2023-11-23 20:19:42,022 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 215 transitions. [2023-11-23 20:19:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:19:42,024 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:42,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:42,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:19:42,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:19:42,923 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 20:19:48,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 124 states and 232 transitions. [2023-11-23 20:19:48,746 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 232 transitions. [2023-11-23 20:19:48,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:19:48,748 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:48,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:48,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:19:48,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:19:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.