./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/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_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55885307ad7991ec619705bd65f9ccb0a7f28b4003909403684402b81add0d87 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:40:27,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:40:27,277 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:40:27,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:40:27,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:40:27,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:40:27,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:40:27,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:40:27,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:40:27,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:40:27,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:40:27,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:40:27,314 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:40:27,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:40:27,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:40:27,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:40:27,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:40:27,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:40:27,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:40:27,318 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:40:27,318 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:40:27,319 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:40:27,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:40:27,320 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:40:27,320 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:40:27,321 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:40:27,321 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:40:27,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:40:27,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:27,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:40:27,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:40:27,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:40:27,324 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:40:27,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:40:27,325 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:40:27,326 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_699d556d-f780-4b52-9617-1e0ff0dd8760/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55885307ad7991ec619705bd65f9ccb0a7f28b4003909403684402b81add0d87 [2023-11-21 18:40:27,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:40:27,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:40:27,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:40:27,606 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:40:27,607 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:40:27,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c [2023-11-21 18:40:30,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:40:30,967 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:40:30,967 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c [2023-11-21 18:40:30,975 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2/data/ec3e84f29/b40d8b39203a47abaecfd849ef0eb692/FLAGb5ab76154 [2023-11-21 18:40:30,989 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2/data/ec3e84f29/b40d8b39203a47abaecfd849ef0eb692 [2023-11-21 18:40:30,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:40:30,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:40:30,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:30,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:40:30,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:40:30,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:30" (1/1) ... [2023-11-21 18:40:31,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ea8340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31, skipping insertion in model container [2023-11-21 18:40:31,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:30" (1/1) ... [2023-11-21 18:40:31,026 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:40:31,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:31,226 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:40:31,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:31,266 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:40:31,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31 WrapperNode [2023-11-21 18:40:31,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:31,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:31,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:40:31,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:40:31,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31" (1/1) ... [2023-11-21 18:40:31,301 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31" (1/1) ... [2023-11-21 18:40:31,325 INFO L138 Inliner]: procedures = 17, calls = 92, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2023-11-21 18:40:31,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:31,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:40:31,327 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:40:31,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:40:31,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31" (1/1) ... [2023-11-21 18:40:31,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31" (1/1) ... [2023-11-21 18:40:31,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31" (1/1) ... [2023-11-21 18:40:31,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31" (1/1) ... [2023-11-21 18:40:31,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31" (1/1) ... [2023-11-21 18:40:31,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31" (1/1) ... [2023-11-21 18:40:31,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31" (1/1) ... [2023-11-21 18:40:31,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31" (1/1) ... [2023-11-21 18:40:31,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:40:31,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:40:31,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:40:31,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:40:31,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:31" (1/1) ... [2023-11-21 18:40:31,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:31,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:40:31,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:40:31,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699d556d-f780-4b52-9617-1e0ff0dd8760/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:40:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:40:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:40:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_41_to_51_0 [2023-11-21 18:40:31,461 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_41_to_51_0 [2023-11-21 18:40:31,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:40:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_31_to_38_0 [2023-11-21 18:40:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_31_to_38_0 [2023-11-21 18:40:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:40:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:40:31,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:40:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:40:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:40:31,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:40:31,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:40:31,607 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:40:31,610 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:40:32,055 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:40:32,168 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:40:32,169 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:40:32,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:32 BoogieIcfgContainer [2023-11-21 18:40:32,171 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:40:32,173 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:40:32,174 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:40:32,184 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:40:32,184 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:32" (1/1) ... [2023-11-21 18:40:32,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:40:32,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:32,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 82 states and 94 transitions. [2023-11-21 18:40:32,257 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions. [2023-11-21 18:40:32,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:40:32,261 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:32,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:32,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:40:32,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:40:32,705 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 18:40:32,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:32,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 82 states and 92 transitions. [2023-11-21 18:40:32,745 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2023-11-21 18:40:32,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:40:32,747 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:32,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:32,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-21 18:40:32,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:40:33,090 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-11-21 18:40:33,167 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,168 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,170 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,182 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,193 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,194 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,198 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,242 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,262 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,302 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,312 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,329 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,336 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,337 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,340 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,357 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,358 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,359 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,363 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,370 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,371 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,374 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 86 [2023-11-21 18:40:33,450 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 18:40:33,452 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2023-11-21 18:40:33,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 50 [2023-11-21 18:40:33,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-21 18:40:33,611 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,612 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,612 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,616 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,626 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 86 [2023-11-21 18:40:33,696 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 18:40:33,698 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2023-11-21 18:40:33,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2023-11-21 18:40:33,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-21 18:40:33,853 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,864 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,865 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:33,868 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,900 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:33,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 91 [2023-11-21 18:40:33,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 15 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 94 [2023-11-21 18:40:33,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:33,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 85 [2023-11-21 18:40:34,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,076 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-21 18:40:34,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2023-11-21 18:40:34,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 35 [2023-11-21 18:40:34,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-11-21 18:40:34,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-21 18:40:34,164 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:34,181 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,182 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,182 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,185 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:34,192 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,193 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,196 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:34,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 60 [2023-11-21 18:40:34,246 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 18:40:34,247 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2023-11-21 18:40:34,257 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,279 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:34,289 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:34,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,309 INFO L349 Elim1Store]: treesize reduction 46, result has 2.1 percent of original size [2023-11-21 18:40:34,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 66 [2023-11-21 18:40:34,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 44 [2023-11-21 18:40:34,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 21 [2023-11-21 18:40:34,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,377 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-21 18:40:34,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2023-11-21 18:40:34,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-21 18:40:34,399 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 15 treesize of output 11 [2023-11-21 18:40:34,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 60 [2023-11-21 18:40:34,464 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 18:40:34,466 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2023-11-21 18:40:34,475 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:34,485 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,486 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,486 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,490 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:34,497 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,497 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 18:40:34,501 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 18:40:34,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-21 18:40:34,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:40:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 91 states and 118 transitions. [2023-11-21 18:40:35,066 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2023-11-21 18:40:35,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:40:35,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:35,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:35,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-21 18:40:35,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:40:35,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:35,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:35,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:35,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:35,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:35,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 18:40:35,289 INFO L190 IndexEqualityManager]: detected not equals via solver