./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem102_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/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_58f69780-4595-4fa4-8825-ca5d2f74b57c/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/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_58f69780-4595-4fa4-8825-ca5d2f74b57c/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 df4e6834a975618f5924374d3f1d979ed2bd9fa19f3d01528913dee294570a6e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:50:08,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:50:08,117 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 21:50:08,122 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:50:08,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:50:08,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:50:08,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:50:08,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:50:08,148 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:50:08,149 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:50:08,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:50:08,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:50:08,150 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:50:08,151 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:50:08,151 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:50:08,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:50:08,152 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:50:08,153 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:50:08,153 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:50:08,154 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:50:08,154 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:50:08,155 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:50:08,155 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:50:08,156 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:50:08,156 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:50:08,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:50:08,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:50:08,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:50:08,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:50:08,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:50:08,159 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:50:08,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:50:08,159 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:50:08,160 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_58f69780-4595-4fa4-8825-ca5d2f74b57c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df4e6834a975618f5924374d3f1d979ed2bd9fa19f3d01528913dee294570a6e [2023-12-02 21:50:08,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:50:08,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:50:08,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:50:08,401 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:50:08,401 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:50:08,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/eca-programs/Problem102_label50.c [2023-12-02 21:50:11,194 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:50:13,347 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:50:13,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/sv-benchmarks/c/eca-programs/Problem102_label50.c [2023-12-02 21:50:13,600 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/bin/ukojak-verify-Qdu7aM0XO9/data/b4c0839c9/56a3a4b261954b9aa2aff25c796c201c/FLAG1d95f468f [2023-12-02 21:50:13,611 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/bin/ukojak-verify-Qdu7aM0XO9/data/b4c0839c9/56a3a4b261954b9aa2aff25c796c201c [2023-12-02 21:50:13,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:50:13,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:50:13,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:50:13,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:50:13,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:50:13,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:50:13" (1/1) ... [2023-12-02 21:50:13,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408f7190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:13, skipping insertion in model container [2023-12-02 21:50:13,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:50:13" (1/1) ... [2023-12-02 21:50:14,887 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:50:39,145 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_58f69780-4595-4fa4-8825-ca5d2f74b57c/sv-benchmarks/c/eca-programs/Problem102_label50.c[5708512,5708525] [2023-12-02 21:50:39,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:50:39,287 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:50:52,534 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_58f69780-4595-4fa4-8825-ca5d2f74b57c/sv-benchmarks/c/eca-programs/Problem102_label50.c[5708512,5708525] [2023-12-02 21:50:52,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:50:56,355 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:50:56,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56 WrapperNode [2023-12-02 21:50:56,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:50:56,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:50:56,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:50:56,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:50:56,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56" (1/1) ... [2023-12-02 21:50:57,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56" (1/1) ... [2023-12-02 21:51:00,041 INFO L138 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184296 [2023-12-02 21:51:00,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:51:00,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:51:00,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:51:00,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:51:00,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56" (1/1) ... [2023-12-02 21:51:00,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56" (1/1) ... [2023-12-02 21:51:00,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56" (1/1) ... [2023-12-02 21:51:00,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56" (1/1) ... [2023-12-02 21:51:02,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56" (1/1) ... [2023-12-02 21:51:02,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56" (1/1) ... [2023-12-02 21:51:02,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56" (1/1) ... [2023-12-02 21:51:03,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56" (1/1) ... [2023-12-02 21:51:03,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:51:03,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:51:03,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:51:03,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:51:03,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:56" (1/1) ... [2023-12-02 21:51:03,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:51:03,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:51:03,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:51:03,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f69780-4595-4fa4-8825-ca5d2f74b57c/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:51:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:51:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:51:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:51:03,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:51:03,826 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:51:03,828 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:52:18,270 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:53:48,791 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:53:48,791 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:53:48,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:53:48 BoogieIcfgContainer [2023-12-02 21:53:48,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:53:48,801 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:53:48,801 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:53:48,808 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:53:48,808 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:53:48" (1/1) ... [2023-12-02 21:53:48,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:53:49,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:49,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35805 states to 17947 states and 35805 transitions. [2023-12-02 21:53:49,081 INFO L276 IsEmpty]: Start isEmpty. Operand 17947 states and 35805 transitions. [2023-12-02 21:53:50,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17862 [2023-12-02 21:53:50,582 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:50,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:53:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:32,603 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 21:56:48,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:48,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62982 states to 35806 states and 62982 transitions. [2023-12-02 21:56:48,811 INFO L276 IsEmpty]: Start isEmpty. Operand 35806 states and 62982 transitions. [2023-12-02 21:56:50,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17867 [2023-12-02 21:56:50,544 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:50,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:56:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat