./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c --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_c3967365-67b5-444a-a944-3cbb9de7be32/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/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_c3967365-67b5-444a-a944-3cbb9de7be32/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/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_c3967365-67b5-444a-a944-3cbb9de7be32/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 65159196aa732cf84d788dcb31500c216d665703806e14a7c6f7047ab62d591b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:05:57,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:05:57,711 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 22:05:57,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:05:57,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:05:57,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:05:57,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:05:57,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:05:57,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:05:57,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:05:57,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:05:57,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:05:57,742 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:05:57,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:05:57,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:05:57,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:05:57,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:05:57,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:05:57,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:05:57,746 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:05:57,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:05:57,747 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:05:57,747 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:05:57,748 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:05:57,748 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:05:57,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:05:57,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:05:57,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:05:57,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:05:57,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:05:57,751 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:05:57,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:05:57,752 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:05:57,752 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_c3967365-67b5-444a-a944-3cbb9de7be32/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65159196aa732cf84d788dcb31500c216d665703806e14a7c6f7047ab62d591b [2023-12-02 22:05:57,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:05:57,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:05:57,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:05:57,991 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:05:57,991 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:05:57,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c [2023-12-02 22:06:00,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:06:01,002 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:06:01,003 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c [2023-12-02 22:06:01,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/bin/ukojak-verify-Qdu7aM0XO9/data/c9dcf7433/4b99654f4be14adf95c5e1b9229d1a3d/FLAGb570c45f1 [2023-12-02 22:06:01,027 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/bin/ukojak-verify-Qdu7aM0XO9/data/c9dcf7433/4b99654f4be14adf95c5e1b9229d1a3d [2023-12-02 22:06:01,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:06:01,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:06:01,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:06:01,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:06:01,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:06:01,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48677a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01, skipping insertion in model container [2023-12-02 22:06:01,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,072 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:06:01,259 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_c3967365-67b5-444a-a944-3cbb9de7be32/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c[15075,15088] [2023-12-02 22:06:01,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:06:01,274 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:06:01,330 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_c3967365-67b5-444a-a944-3cbb9de7be32/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c[15075,15088] [2023-12-02 22:06:01,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:06:01,347 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:06:01,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01 WrapperNode [2023-12-02 22:06:01,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:06:01,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:06:01,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:06:01,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:06:01,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,399 INFO L138 Inliner]: procedures = 25, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 392 [2023-12-02 22:06:01,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:06:01,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:06:01,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:06:01,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:06:01,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:06:01,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:06:01,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:06:01,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:06:01,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:01" (1/1) ... [2023-12-02 22:06:01,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:06:01,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:06:01,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:06:01,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3967365-67b5-444a-a944-3cbb9de7be32/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:06:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:06:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:06:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:06:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:06:01,599 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:06:01,602 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:06:01,988 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:06:02,556 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:06:02,556 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 22:06:02,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:06:02 BoogieIcfgContainer [2023-12-02 22:06:02,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:06:02,559 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:06:02,559 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:06:02,569 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:06:02,569 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:06:02" (1/1) ... [2023-12-02 22:06:02,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:06:02,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:02,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-12-02 22:06:02,633 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-12-02 22:06:02,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 22:06:02,635 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:02,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:04,062 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 22:06:04,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:04,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2023-12-02 22:06:04,175 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2023-12-02 22:06:04,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:06:04,176 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:04,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:04,390 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 22:06:04,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 17 states and 27 transitions. [2023-12-02 22:06:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 27 transitions. [2023-12-02 22:06:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:06:04,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:04,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:05,743 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 22:06:06,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:06,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2023-12-02 22:06:06,281 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2023-12-02 22:06:06,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:06:06,283 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:06,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:06,543 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 22:06:06,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:06,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 39 transitions. [2023-12-02 22:06:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2023-12-02 22:06:06,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 22:06:06,766 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:06,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:15,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:06:19,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:19,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 60 transitions. [2023-12-02 22:06:19,957 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2023-12-02 22:06:19,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 22:06:19,958 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:19,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:20,461 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:06:25,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:25,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 45 states and 85 transitions. [2023-12-02 22:06:25,491 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 85 transitions. [2023-12-02 22:06:25,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 22:06:25,492 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:25,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:33,990 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:06:40,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:40,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 56 states and 109 transitions. [2023-12-02 22:06:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 109 transitions. [2023-12-02 22:06:40,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 22:06:40,772 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:40,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:06:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:06:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 72 states and 151 transitions. [2023-12-02 22:06:50,831 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 151 transitions. [2023-12-02 22:06:50,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 22:06:50,833 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:06:50,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:06:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:06:52,717 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:07:02,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:07:02,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 83 states and 189 transitions. [2023-12-02 22:07:02,515 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 189 transitions. [2023-12-02 22:07:02,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:07:02,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:07:02,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:07:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:07:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:07:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:07:13,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 99 states and 226 transitions. [2023-12-02 22:07:13,906 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 226 transitions. [2023-12-02 22:07:13,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:07:13,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:07:13,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:07:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:07:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:07:21,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:07:21,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 107 states and 253 transitions. [2023-12-02 22:07:21,467 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 253 transitions. [2023-12-02 22:07:21,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:07:21,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:07:21,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:07:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:07:22,529 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:07:26,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:07:26,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 114 states and 267 transitions. [2023-12-02 22:07:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 267 transitions. [2023-12-02 22:07:26,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:07:26,314 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:07:26,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:07:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:07:28,683 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:07:33,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:07:33,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 121 states and 286 transitions. [2023-12-02 22:07:33,709 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 286 transitions. [2023-12-02 22:07:33,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:07:33,710 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:07:33,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:07:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:07:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:07:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:07:34,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 122 states and 294 transitions. [2023-12-02 22:07:34,955 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 294 transitions. [2023-12-02 22:07:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:07:34,956 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:07:34,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:07:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:07:35,314 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:07:37,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:07:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 125 states and 299 transitions. [2023-12-02 22:07:37,899 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 299 transitions. [2023-12-02 22:07:37,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:07:37,900 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:07:37,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:07:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:07:40,069 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:07:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:07:41,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 126 states and 303 transitions. [2023-12-02 22:07:41,806 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 303 transitions. [2023-12-02 22:07:41,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 22:07:41,807 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:07:41,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:07:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:07:43,259 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:07:47,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:07:47,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 132 states and 320 transitions. [2023-12-02 22:07:47,151 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 320 transitions. [2023-12-02 22:07:47,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 22:07:47,151 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:07:47,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:07:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:08:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:09:36,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:09:36,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 157 states and 404 transitions. [2023-12-02 22:09:36,510 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 404 transitions. [2023-12-02 22:09:36,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 22:09:36,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:09:36,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:09:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:10:39,473 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:12:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:12:18,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 181 states and 486 transitions. [2023-12-02 22:12:18,962 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 486 transitions. [2023-12-02 22:12:18,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 22:12:18,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:12:18,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:12:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:13:45,905 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:15:47,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:15:47,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 206 states and 584 transitions. [2023-12-02 22:15:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 584 transitions. [2023-12-02 22:15:47,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 22:15:47,063 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:15:47,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:15:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat