./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label29.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_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label29.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c85e7c8ad743232eaf67a454bcaf99f6a95fa82483af46e6e34deddca8a203f7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:52:08,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:52:09,132 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:52:09,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:52:09,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:52:09,185 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:52:09,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:52:09,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:52:09,188 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:52:09,189 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:52:09,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:52:09,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:52:09,191 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:52:09,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:52:09,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:52:09,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:52:09,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:52:09,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:52:09,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:52:09,200 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:52:09,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:52:09,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:52:09,202 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:52:09,203 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:52:09,203 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:52:09,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:52:09,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:09,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:52:09,206 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:52:09,206 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:52:09,208 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:52:09,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:52:09,209 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:52:09,210 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_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c85e7c8ad743232eaf67a454bcaf99f6a95fa82483af46e6e34deddca8a203f7 [2023-11-24 22:52:09,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:52:09,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:52:09,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:52:09,656 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:52:09,657 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:52:09,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/eca-rers2012/Problem11_label29.c [2023-11-24 22:52:13,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:52:13,658 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:52:13,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/sv-benchmarks/c/eca-rers2012/Problem11_label29.c [2023-11-24 22:52:13,682 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/data/cb05597c8/3e1b8ee605304847b085bbcbf40f9d7c/FLAG59eb34ce0 [2023-11-24 22:52:13,705 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/data/cb05597c8/3e1b8ee605304847b085bbcbf40f9d7c [2023-11-24 22:52:13,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:52:13,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:52:13,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:13,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:52:13,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:52:13,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:13" (1/1) ... [2023-11-24 22:52:13,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e56700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:13, skipping insertion in model container [2023-11-24 22:52:13,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:13" (1/1) ... [2023-11-24 22:52:13,818 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:52:14,023 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_87b2cce4-8f57-4a98-a36a-c3173c359ff0/sv-benchmarks/c/eca-rers2012/Problem11_label29.c[2990,3003] [2023-11-24 22:52:14,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:14,465 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:52:14,497 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_87b2cce4-8f57-4a98-a36a-c3173c359ff0/sv-benchmarks/c/eca-rers2012/Problem11_label29.c[2990,3003] [2023-11-24 22:52:14,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:14,704 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:52:14,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14 WrapperNode [2023-11-24 22:52:14,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:14,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:14,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:52:14,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:52:14,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14" (1/1) ... [2023-11-24 22:52:14,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14" (1/1) ... [2023-11-24 22:52:14,854 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2023-11-24 22:52:14,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:14,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:52:14,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:52:14,856 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:52:14,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14" (1/1) ... [2023-11-24 22:52:14,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14" (1/1) ... [2023-11-24 22:52:14,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14" (1/1) ... [2023-11-24 22:52:14,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14" (1/1) ... [2023-11-24 22:52:14,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14" (1/1) ... [2023-11-24 22:52:14,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14" (1/1) ... [2023-11-24 22:52:14,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14" (1/1) ... [2023-11-24 22:52:15,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14" (1/1) ... [2023-11-24 22:52:15,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:52:15,025 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:52:15,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:52:15,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:52:15,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:14" (1/1) ... [2023-11-24 22:52:15,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:15,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:52:15,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:52:15,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b2cce4-8f57-4a98-a36a-c3173c359ff0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:52:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:52:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:52:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:52:15,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:52:15,208 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:52:15,211 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:52:17,317 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:52:25,179 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:52:25,180 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:52:25,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:25 BoogieIcfgContainer [2023-11-24 22:52:25,182 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:52:25,183 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:52:25,183 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:52:25,194 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:52:25,195 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:25" (1/1) ... [2023-11-24 22:52:25,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:52:25,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:25,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-24 22:52:25,275 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-24 22:52:25,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:52:25,277 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:25,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:25,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:25,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-24 22:52:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-24 22:52:25,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:52:25,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:25,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat