./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi --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 cb71614531ba069deddebdade1f57f90be50d3de3732c63efbb92b9f6b8c62e1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:52:53,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:52:53,199 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:52:53,205 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:52:53,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:52:53,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:52:53,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:52:53,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:52:53,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:52:53,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:52:53,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:52:53,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:52:53,263 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:52:53,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:52:53,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:52:53,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:52:53,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:52:53,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:52:53,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:52:53,267 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:52:53,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:52:53,269 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:52:53,269 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:52:53,270 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:52:53,270 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:52:53,271 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:52:53,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:53,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:52:53,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:52:53,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:52:53,274 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:52:53,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:52:53,275 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:52:53,275 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_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb71614531ba069deddebdade1f57f90be50d3de3732c63efbb92b9f6b8c62e1 [2023-11-24 22:52:53,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:52:53,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:52:53,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:52:53,621 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:52:53,633 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:52:53,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/array-fpi/ifeqn2.c [2023-11-24 22:52:56,879 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:52:57,115 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:52:57,116 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/sv-benchmarks/c/array-fpi/ifeqn2.c [2023-11-24 22:52:57,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/data/b0d8f609a/5759decd5a994f44a8061864c0714149/FLAGa0e57d10d [2023-11-24 22:52:57,139 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/data/b0d8f609a/5759decd5a994f44a8061864c0714149 [2023-11-24 22:52:57,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:52:57,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:52:57,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:57,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:52:57,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:52:57,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127e6fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57, skipping insertion in model container [2023-11-24 22:52:57,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:52:57,389 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_a2b893ca-4bb0-4c91-a589-d24366437487/sv-benchmarks/c/array-fpi/ifeqn2.c[589,602] [2023-11-24 22:52:57,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:57,428 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:52:57,441 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_a2b893ca-4bb0-4c91-a589-d24366437487/sv-benchmarks/c/array-fpi/ifeqn2.c[589,602] [2023-11-24 22:52:57,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:57,467 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:52:57,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57 WrapperNode [2023-11-24 22:52:57,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:57,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:57,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:52:57,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:52:57,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,506 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-11-24 22:52:57,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:57,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:52:57,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:52:57,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:52:57,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,527 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:52:57,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:52:57,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:52:57,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:52:57,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:57" (1/1) ... [2023-11-24 22:52:57,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:57,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:52:57,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:52:57,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b893ca-4bb0-4c91-a589-d24366437487/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:52:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:52:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:52:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:52:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:52:57,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:52:57,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:52:57,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:52:57,710 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:52:57,713 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:52:57,914 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:52:58,033 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:52:58,034 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-24 22:52:58,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:58 BoogieIcfgContainer [2023-11-24 22:52:58,036 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:52:58,037 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:52:58,037 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:52:58,048 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:52:58,048 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:52:58,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:58,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2023-11-24 22:52:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2023-11-24 22:52:58,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:52:58,118 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:58,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:58,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:52:58,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:58,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:58,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:58,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-11-24 22:52:58,502 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-11-24 22:52:58,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:52:58,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:58,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:58,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:52:58,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:58,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:52:58,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:58,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2023-11-24 22:52:58,703 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2023-11-24 22:52:58,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:52:58,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:58,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:58,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-24 22:52:58,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:58,879 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 [2023-11-24 22:52:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:52:59,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:59,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 16 states and 26 transitions. [2023-11-24 22:52:59,272 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 26 transitions. [2023-11-24 22:52:59,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:52:59,273 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:59,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:59,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 22:52:59,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:00,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:00,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 19 states and 31 transitions. [2023-11-24 22:53:00,114 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 31 transitions. [2023-11-24 22:53:00,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:53:00,115 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:00,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:00,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-24 22:53:00,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:00,415 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 [2023-11-24 22:53:00,487 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 27 treesize of output 11 [2023-11-24 22:53:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:53:00,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:00,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 31 transitions. [2023-11-24 22:53:00,862 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 31 transitions. [2023-11-24 22:53:00,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:53:00,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:00,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:00,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 22:53:00,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:01,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:53:01,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 38 transitions. [2023-11-24 22:53:01,552 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2023-11-24 22:53:01,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:53:01,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:53:01,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:02,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 28 states and 45 transitions. [2023-11-24 22:53:02,887 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 45 transitions. [2023-11-24 22:53:02,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:53:02,888 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:03,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-24 22:53:03,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:03,505 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 [2023-11-24 22:53:03,600 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 [2023-11-24 22:53:03,687 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 [2023-11-24 22:53:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:53:06,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:06,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 46 transitions. [2023-11-24 22:53:06,184 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2023-11-24 22:53:06,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 22:53:06,185 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:06,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:06,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-24 22:53:06,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:06,385 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 [2023-11-24 22:53:06,496 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 11 treesize of output 7 [2023-11-24 22:53:06,639 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 23 treesize of output 11 [2023-11-24 22:53:06,894 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 [2023-11-24 22:53:07,013 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 22:53:07,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-24 22:53:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:12,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 36 states and 58 transitions. [2023-11-24 22:53:12,639 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2023-11-24 22:53:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 22:53:12,640 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:12,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:12,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 22:53:12,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:15,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:15,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 41 states and 70 transitions. [2023-11-24 22:53:15,523 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 70 transitions. [2023-11-24 22:53:15,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:53:15,525 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:15,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:15,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:53:15,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:16,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:16,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 41 states and 67 transitions. [2023-11-24 22:53:16,944 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 67 transitions. [2023-11-24 22:53:16,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:53:16,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:16,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:17,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-24 22:53:17,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:17,770 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 [2023-11-24 22:53:17,791 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 [2023-11-24 22:53:17,809 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 [2023-11-24 22:53:17,972 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 [2023-11-24 22:53:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:53:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 42 states and 68 transitions. [2023-11-24 22:53:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2023-11-24 22:53:18,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:53:18,895 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:18,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:19,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-24 22:53:19,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:19,305 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 [2023-11-24 22:53:19,323 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 11 treesize of output 7 [2023-11-24 22:53:19,344 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 23 treesize of output 11 [2023-11-24 22:53:19,502 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 23 treesize of output 11 [2023-11-24 22:53:19,541 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 [2023-11-24 22:53:19,572 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 22:53:19,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-24 22:53:19,764 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 22:53:19,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 31 [2023-11-24 22:53:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:22,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:22,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 46 states and 73 transitions. [2023-11-24 22:53:22,663 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 73 transitions. [2023-11-24 22:53:22,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:53:22,664 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:22,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:22,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 22:53:22,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:23,486 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:24,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 40 states and 60 transitions. [2023-11-24 22:53:24,387 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 60 transitions. [2023-11-24 22:53:24,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:53:24,388 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:24,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:24,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-24 22:53:24,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:29,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:29,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 46 states and 70 transitions. [2023-11-24 22:53:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2023-11-24 22:53:29,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 22:53:29,302 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:29,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:29,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:53:29,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:53:34,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:34,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 53 states and 81 transitions. [2023-11-24 22:53:34,041 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 81 transitions. [2023-11-24 22:53:34,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 22:53:34,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:34,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:36,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-24 22:53:36,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:36,508 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 [2023-11-24 22:53:36,524 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 [2023-11-24 22:53:36,547 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 [2023-11-24 22:53:36,563 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 [2023-11-24 22:53:36,791 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 [2023-11-24 22:53:36,815 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:53:38,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:38,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 54 states and 82 transitions. [2023-11-24 22:53:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 82 transitions. [2023-11-24 22:53:38,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:53:38,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:38,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:39,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 58 conjunts are in the unsatisfiable core [2023-11-24 22:53:39,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:39,088 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 [2023-11-24 22:53:39,121 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 11 treesize of output 7 [2023-11-24 22:53:39,148 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 23 treesize of output 11 [2023-11-24 22:53:39,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 27 [2023-11-24 22:53:39,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2023-11-24 22:53:39,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 37 [2023-11-24 22:53:40,228 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-24 22:53:40,228 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 7 case distinctions, treesize of input 39 treesize of output 47 [2023-11-24 22:53:40,499 INFO L349 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2023-11-24 22:53:40,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 52 treesize of output 59 [2023-11-24 22:53:40,942 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-24 22:53:40,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 63 treesize of output 62 [2023-11-24 22:53:42,218 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.