./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array13_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/array-patterns/array13_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2 --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 78699f7813351c3df7f7fcab3bf98fffd7a92c5cc679034a9d139e9169232d7e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:42:14,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:42:14,942 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-21 18:42:14,948 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:42:14,949 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:42:14,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:42:14,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:42:14,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:42:14,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:42:14,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:42:14,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:42:14,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:42:14,978 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:42:14,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:42:14,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:42:14,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:42:14,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:42:14,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:42:14,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:42:14,982 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:42:14,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:42:14,989 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:42:14,990 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:42:14,990 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:42:14,992 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:42:14,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:42:14,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:14,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:42:14,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:42:14,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:42:14,996 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:42:14,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:42:14,996 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:42:14,996 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_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78699f7813351c3df7f7fcab3bf98fffd7a92c5cc679034a9d139e9169232d7e [2023-11-21 18:42:15,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:42:15,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:42:15,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:42:15,362 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:42:15,363 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:42:15,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/array-patterns/array13_pattern.c [2023-11-21 18:42:18,656 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:42:18,876 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:42:18,877 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/sv-benchmarks/c/array-patterns/array13_pattern.c [2023-11-21 18:42:18,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/data/43e033980/a2fd6da344a64b72bbfdf761efa86d2c/FLAG9811ca5d1 [2023-11-21 18:42:18,904 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/data/43e033980/a2fd6da344a64b72bbfdf761efa86d2c [2023-11-21 18:42:18,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:42:18,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:42:18,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:18,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:42:18,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:42:18,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:18" (1/1) ... [2023-11-21 18:42:18,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a054220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:18, skipping insertion in model container [2023-11-21 18:42:18,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:18" (1/1) ... [2023-11-21 18:42:18,950 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:42:19,118 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_aec63ea0-c9c5-4968-bead-d231d5a4244e/sv-benchmarks/c/array-patterns/array13_pattern.c[1342,1355] [2023-11-21 18:42:19,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:19,156 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:42:19,170 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_aec63ea0-c9c5-4968-bead-d231d5a4244e/sv-benchmarks/c/array-patterns/array13_pattern.c[1342,1355] [2023-11-21 18:42:19,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:19,199 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:42:19,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19 WrapperNode [2023-11-21 18:42:19,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:19,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:19,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:42:19,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:42:19,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,245 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 98 [2023-11-21 18:42:19,246 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:42:19,247 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:42:19,247 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:42:19,247 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:42:19,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:42:19,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:42:19,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:42:19,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:42:19,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:19,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:42:19,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:42:19,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec63ea0-c9c5-4968-bead-d231d5a4244e/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:42:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:42:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:42:19,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:42:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:42:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:42:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:42:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:42:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:42:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:42:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:42:19,505 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:42:19,508 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:42:19,728 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:42:19,788 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:42:19,788 INFO L308 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-21 18:42:19,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:19 BoogieIcfgContainer [2023-11-21 18:42:19,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:42:19,791 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:42:19,792 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:42:19,803 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:42:19,803 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:42:19" (1/1) ... [2023-11-21 18:42:19,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:42:19,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2023-11-21 18:42:19,878 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2023-11-21 18:42:19,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:42:19,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:19,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:20,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:42:20,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:20,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:42:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:20,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2023-11-21 18:42:20,163 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-11-21 18:42:20,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:42:20,164 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:20,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:20,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:42:20,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:42:20,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:20,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 36 transitions. [2023-11-21 18:42:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2023-11-21 18:42:20,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:42:20,478 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:20,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:20,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:42:20,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:42:20,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:20,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2023-11-21 18:42:20,780 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2023-11-21 18:42:20,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 18:42:20,782 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:20,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:20,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:42:20,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:20,913 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:42:21,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:21,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2023-11-21 18:42:21,132 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2023-11-21 18:42:21,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:42:21,133 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:21,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:21,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:42:21,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:21,233 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:42:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2023-11-21 18:42:21,411 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2023-11-21 18:42:21,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 18:42:21,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:21,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:21,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:42:21,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:42:21,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:21,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2023-11-21 18:42:21,607 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2023-11-21 18:42:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 18:42:21,608 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:21,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:21,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-21 18:42:21,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:21,853 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 15 treesize of output 1 [2023-11-21 18:42:22,365 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 23 treesize of output 11 [2023-11-21 18:42:22,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 7 [2023-11-21 18:42:22,587 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:42:24,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:24,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 40 states and 68 transitions. [2023-11-21 18:42:24,839 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2023-11-21 18:42:24,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 18:42:24,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:24,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:24,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:42:24,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:25,149 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:42:26,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 43 states and 78 transitions. [2023-11-21 18:42:26,153 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2023-11-21 18:42:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 18:42:26,155 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:26,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:26,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:42:26,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:42:27,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:27,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 44 states and 79 transitions. [2023-11-21 18:42:27,084 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2023-11-21 18:42:27,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 18:42:27,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:27,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:27,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:42:27,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:27,296 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:42:27,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:27,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 45 states and 80 transitions. [2023-11-21 18:42:27,697 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 80 transitions. [2023-11-21 18:42:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 18:42:27,698 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:27,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:27,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:42:27,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:28,034 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:42:29,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:29,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 48 states and 88 transitions. [2023-11-21 18:42:29,101 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 88 transitions. [2023-11-21 18:42:29,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 18:42:29,109 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:29,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:29,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:42:29,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:29,282 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:42:29,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:29,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 49 states and 88 transitions. [2023-11-21 18:42:29,559 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 88 transitions. [2023-11-21 18:42:29,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 18:42:29,562 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:29,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:29,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:42:29,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:29,781 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-21 18:42:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 61 states and 104 transitions. [2023-11-21 18:42:31,879 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 104 transitions. [2023-11-21 18:42:31,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 18:42:31,881 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:31,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:31,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:42:31,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:32,067 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 18:42:32,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:32,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 65 states and 110 transitions. [2023-11-21 18:42:32,994 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 110 transitions. [2023-11-21 18:42:32,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:42:32,996 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:32,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:33,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:42:33,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 18:42:33,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:33,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 53 states and 84 transitions. [2023-11-21 18:42:33,505 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 84 transitions. [2023-11-21 18:42:33,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 18:42:33,515 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:33,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:33,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 75 conjunts are in the unsatisfiable core [2023-11-21 18:42:33,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:34,046 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 [2023-11-21 18:42:34,172 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 19 treesize of output 18 [2023-11-21 18:42:34,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:34,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:34,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 18:42:34,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2023-11-21 18:42:34,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:34,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:34,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:34,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:34,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 18:42:34,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-21 18:42:36,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:36,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:36,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:36,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:36,913 INFO L349 Elim1Store]: treesize reduction 184, result has 23.0 percent of original size [2023-11-21 18:42:36,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 125 treesize of output 114 [2023-11-21 18:42:39,330 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 18:42:39,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 20 [2023-11-21 18:42:39,603 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:42:51,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:42:51,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 75 states and 126 transitions. [2023-11-21 18:42:51,449 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 126 transitions. [2023-11-21 18:42:51,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 18:42:51,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:42:51,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:42:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:42:51,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-21 18:42:51,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:42:52,141 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 15 treesize of output 1 [2023-11-21 18:42:52,341 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 23 treesize of output 11 [2023-11-21 18:42:52,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:52,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:52,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2023-11-21 18:42:53,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:53,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:53,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:53,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:53,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 33 [2023-11-21 18:42:55,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:55,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:55,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:55,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:56,533 INFO L349 Elim1Store]: treesize reduction 184, result has 23.0 percent of original size [2023-11-21 18:42:56,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 125 treesize of output 114 [2023-11-21 18:42:59,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:59,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:59,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:59,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:42:59,875 INFO L349 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2023-11-21 18:42:59,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 97 treesize of output 38 [2023-11-21 18:43:00,458 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.