./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin.i --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_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/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_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/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_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/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 8d0e6bdf4ddc5b5e0cadfb452142b6477bf8c78b59a2e6398c4f283004048468 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:08:59,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:08:59,964 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:08:59,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:08:59,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:08:59,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:08:59,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:08:59,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:08:59,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:08:59,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:08:59,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:08:59,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:08:59,999 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:09:00,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:09:00,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:09:00,001 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:09:00,002 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:09:00,002 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:09:00,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:09:00,004 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:09:00,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:09:00,005 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:09:00,006 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:09:00,006 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:09:00,007 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:09:00,008 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:09:00,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:09:00,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:09:00,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:09:00,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:09:00,010 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:09:00,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:09:00,011 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:09:00,012 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_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d0e6bdf4ddc5b5e0cadfb452142b6477bf8c78b59a2e6398c4f283004048468 [2023-11-24 23:09:00,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:09:00,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:09:00,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:09:00,359 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:09:00,360 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:09:00,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin.i [2023-11-24 23:09:03,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:09:03,968 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:09:03,969 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/sv-benchmarks/c/recursified_nla-digbench/recursified_divbin.i [2023-11-24 23:09:03,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/bin/ukojak-verify-afCqCEvfdi/data/8c51494a3/24575d5614854589bbfd37d52c0c400f/FLAG75462f2ac [2023-11-24 23:09:04,015 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/bin/ukojak-verify-afCqCEvfdi/data/8c51494a3/24575d5614854589bbfd37d52c0c400f [2023-11-24 23:09:04,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:09:04,025 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:09:04,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:09:04,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:09:04,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:09:04,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623f379c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04, skipping insertion in model container [2023-11-24 23:09:04,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,079 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:09:04,270 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_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/sv-benchmarks/c/recursified_nla-digbench/recursified_divbin.i[1564,1577] [2023-11-24 23:09:04,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:09:04,303 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:09:04,318 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_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/sv-benchmarks/c/recursified_nla-digbench/recursified_divbin.i[1564,1577] [2023-11-24 23:09:04,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:09:04,348 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:09:04,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04 WrapperNode [2023-11-24 23:09:04,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:09:04,350 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:09:04,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:09:04,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:09:04,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,368 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,390 INFO L138 Inliner]: procedures = 19, calls = 63, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2023-11-24 23:09:04,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:09:04,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:09:04,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:09:04,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:09:04,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,407 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,424 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:09:04,425 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:09:04,425 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:09:04,425 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:09:04,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:09:04,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:09:04,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:09:04,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b90ccae0-e93d-4b58-b82f-c38db7abc7ad/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:09:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_35_to_37_0 [2023-11-24 23:09:04,515 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_35_to_37_0 [2023-11-24 23:09:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:09:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:09:04,516 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:09:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:09:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:09:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:09:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_39_to_46_0 [2023-11-24 23:09:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_39_to_46_0 [2023-11-24 23:09:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:09:04,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:09:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:09:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:09:04,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:09:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:09:04,664 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:09:04,667 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:09:04,939 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:09:05,050 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:09:05,050 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:09:05,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:09:05 BoogieIcfgContainer [2023-11-24 23:09:05,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:09:05,053 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:09:05,054 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:09:05,066 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:09:05,066 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:09:05" (1/1) ... [2023-11-24 23:09:05,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:09:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:09:05,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 41 transitions. [2023-11-24 23:09:05,162 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2023-11-24 23:09:05,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 23:09:05,168 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:09:05,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:09:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:09:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:09:05,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:09:05,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:09:05,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:09:05,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:09:05,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2023-11-24 23:09:05,638 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2023-11-24 23:09:05,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 23:09:05,639 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:09:05,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:09:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:09:06,089 WARN L260 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 116 conjunts are in the unsatisfiable core [2023-11-24 23:09:06,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:09:06,247 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-11-24 23:09:06,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 53 [2023-11-24 23:09:06,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:09:06,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2023-11-24 23:09:06,333 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 [2023-11-24 23:09:07,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:09:07,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:09:07,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:09:07,273 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 90 treesize of output 46 [2023-11-24 23:09:08,474 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-11-24 23:09:08,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 45 [2023-11-24 23:09:08,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:09:10,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:09:10,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 41 states and 56 transitions. [2023-11-24 23:09:10,514 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2023-11-24 23:09:10,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 23:09:10,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:09:10,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:09:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:09:10,819 WARN L260 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 121 conjunts are in the unsatisfiable core [2023-11-24 23:09:10,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:09:10,897 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-11-24 23:09:10,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 53 [2023-11-24 23:09:10,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-11-24 23:09:10,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 21 [2023-11-24 23:09:10,984 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 [2023-11-24 23:09:11,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:09:11,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:09:11,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:09:11,381 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 90 treesize of output 46 [2023-11-24 23:09:32,062 INFO L349 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2023-11-24 23:09:32,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 64 [2023-11-24 23:09:33,018 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-11-24 23:09:33,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 50 [2023-11-24 23:09:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.