./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9 --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 07d2bb25a1c8c4ef92611e8b25e211f661495bf054d1380ec62ffea892b45c2f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:38:12,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:38:12,637 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:38:12,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:38:12,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:38:12,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:38:12,665 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:38:12,665 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:38:12,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:38:12,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:38:12,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:38:12,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:38:12,668 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:38:12,669 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:38:12,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:38:12,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:38:12,670 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:38:12,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:38:12,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:38:12,672 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:38:12,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:38:12,672 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:38:12,673 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:38:12,673 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:38:12,674 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:38:12,674 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:38:12,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:38:12,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:38:12,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:38:12,676 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:38:12,676 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:38:12,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:38:12,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:38:12,677 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_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07d2bb25a1c8c4ef92611e8b25e211f661495bf054d1380ec62ffea892b45c2f [2023-12-02 23:38:12,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:38:12,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:38:12,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:38:12,918 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:38:12,918 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:38:12,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i [2023-12-02 23:38:15,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:38:15,820 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:38:15,821 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i [2023-12-02 23:38:15,828 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/data/ae6fb018c/0518453c948d42d599923fd3db475ac5/FLAG030d37423 [2023-12-02 23:38:15,840 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/data/ae6fb018c/0518453c948d42d599923fd3db475ac5 [2023-12-02 23:38:15,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:38:15,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:38:15,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:38:15,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:38:15,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:38:15,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:38:15" (1/1) ... [2023-12-02 23:38:15,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d9bd676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:15, skipping insertion in model container [2023-12-02 23:38:15,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:38:15" (1/1) ... [2023-12-02 23:38:15,873 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:38:15,996 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_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i[1567,1580] [2023-12-02 23:38:16,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:38:16,021 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:38:16,032 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_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/sv-benchmarks/c/recursified_nla-digbench/recursified_divbin2.i[1567,1580] [2023-12-02 23:38:16,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:38:16,054 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:38:16,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16 WrapperNode [2023-12-02 23:38:16,055 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:38:16,056 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:38:16,056 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:38:16,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:38:16,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,084 INFO L138 Inliner]: procedures = 19, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-12-02 23:38:16,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:38:16,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:38:16,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:38:16,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:38:16,092 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,107 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:38:16,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:38:16,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:38:16,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:38:16,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:38:16,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:38:16,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:38:16,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8495616-d5ee-4516-b9ca-a8ec67d71cf0/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:38:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:38:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_33_to_35_0 [2023-12-02 23:38:16,172 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_33_to_35_0 [2023-12-02 23:38:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:38:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:38:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 23:38:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_37_to_44_0 [2023-12-02 23:38:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_37_to_44_0 [2023-12-02 23:38:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:38:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:38:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 23:38:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 23:38:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 23:38:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:38:16,255 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:38:16,257 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:38:16,458 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:38:16,506 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:38:16,507 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 23:38:16,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:38:16 BoogieIcfgContainer [2023-12-02 23:38:16,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:38:16,509 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:38:16,510 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:38:16,519 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:38:16,519 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:38:16" (1/1) ... [2023-12-02 23:38:16,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:38:16,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:16,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2023-12-02 23:38:16,582 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2023-12-02 23:38:16,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 23:38:16,586 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:16,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:16,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:38:16,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:38:16,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:38:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:16,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 31 transitions. [2023-12-02 23:38:16,869 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2023-12-02 23:38:16,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 23:38:16,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:16,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:17,213 WARN L260 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 107 conjunts are in the unsatisfiable core [2023-12-02 23:38:17,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:38:17,312 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-12-02 23:38:17,348 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:17,349 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:17,350 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:17,362 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 23:38:17,371 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:17,372 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:17,373 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:17,380 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 23:38:17,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 33 [2023-12-02 23:38:17,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:17,469 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2023-12-02 23:38:17,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 37 [2023-12-02 23:38:17,546 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:17,547 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:17,548 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:17,554 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 23:38:18,299 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-12-02 23:38:18,299 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 56 treesize of output 36 [2023-12-02 23:38:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:38:19,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:19,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 35 states and 49 transitions. [2023-12-02 23:38:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2023-12-02 23:38:19,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 23:38:19,163 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:19,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:19,301 WARN L260 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 109 conjunts are in the unsatisfiable core [2023-12-02 23:38:19,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:38:19,328 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-12-02 23:38:19,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 33 [2023-12-02 23:38:19,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:19,405 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2023-12-02 23:38:19,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 37 [2023-12-02 23:38:19,439 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:19,439 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:19,440 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:19,444 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 23:38:19,452 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:19,453 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:19,453 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:19,460 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 23:38:19,466 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:19,466 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:19,467 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:19,472 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 23:38:19,755 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-02 23:38:19,755 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 53 treesize of output 53 [2023-12-02 23:38:20,299 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-12-02 23:38:20,300 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 56 treesize of output 36 [2023-12-02 23:38:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:38:22,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:22,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 41 states and 61 transitions. [2023-12-02 23:38:22,504 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2023-12-02 23:38:22,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 23:38:22,505 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:22,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:22,698 WARN L260 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 121 conjunts are in the unsatisfiable core [2023-12-02 23:38:22,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:38:22,719 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-12-02 23:38:22,728 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:22,728 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:22,729 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:22,732 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 23:38:22,739 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:22,740 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:22,741 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:22,744 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 23:38:22,749 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:22,750 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:22,750 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:38:22,754 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 23:38:22,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 33 [2023-12-02 23:38:22,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 23:38:22,817 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2023-12-02 23:38:22,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 37 [2023-12-02 23:38:23,518 INFO L349 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2023-12-02 23:38:23,519 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 50 treesize of output 50 [2023-12-02 23:38:24,236 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 23:38:24,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 39 [2023-12-02 23:38:24,330 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:38:28,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:38:28,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 46 states and 72 transitions. [2023-12-02 23:38:28,686 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 72 transitions. [2023-12-02 23:38:28,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 23:38:28,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:38:28,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:38:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:38:28,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-02 23:38:28,798 INFO L285 TraceCheckSpWp]: Computing forward predicates...