./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3 --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 0225da5b84f8f4c67b72023a0b3c6d0183e191e249919cfcf9b3b5872b9a3324 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:16:21,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:16:21,522 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 05:16:21,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 05:16:21,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 05:16:21,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:16:21,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:16:21,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:16:21,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:16:21,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:16:21,574 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:16:21,574 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:16:21,574 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 05:16:21,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 05:16:21,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 05:16:21,575 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:16:21,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:16:21,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:16:21,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:16:21,575 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 05:16:21,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:16:21,575 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:16:21,575 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:16:21,575 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:16:21,576 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:16:21,576 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:16:21,576 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:16:21,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:16:21,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:16:21,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:16:21,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:16:21,577 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 05:16:21,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 05:16:21,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3 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 -> 0225da5b84f8f4c67b72023a0b3c6d0183e191e249919cfcf9b3b5872b9a3324 [2024-11-25 05:16:21,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:16:21,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:16:21,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:16:21,947 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:16:21,948 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:16:21,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/eca-rers2012/Problem15_label22.c [2024-11-25 05:16:24,910 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/data/c846fd7b6/b0f9376c087e4bb9a7700b9c5766f91a/FLAG1609aaab3 [2024-11-25 05:16:25,378 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:16:25,381 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/sv-benchmarks/c/eca-rers2012/Problem15_label22.c [2024-11-25 05:16:25,409 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/data/c846fd7b6/b0f9376c087e4bb9a7700b9c5766f91a/FLAG1609aaab3 [2024-11-25 05:16:25,468 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/data/c846fd7b6/b0f9376c087e4bb9a7700b9c5766f91a [2024-11-25 05:16:25,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:16:25,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:16:25,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:16:25,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:16:25,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:16:25,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:16:25" (1/1) ... [2024-11-25 05:16:25,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9b6c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:25, skipping insertion in model container [2024-11-25 05:16:25,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:16:25" (1/1) ... [2024-11-25 05:16:25,570 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:16:25,798 WARN L250 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_e8307f60-8a4e-44e3-82c8-4e70f14a976b/sv-benchmarks/c/eca-rers2012/Problem15_label22.c[2348,2361] [2024-11-25 05:16:26,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:16:26,419 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:16:26,438 WARN L250 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_e8307f60-8a4e-44e3-82c8-4e70f14a976b/sv-benchmarks/c/eca-rers2012/Problem15_label22.c[2348,2361] [2024-11-25 05:16:26,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:16:26,755 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:16:26,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26 WrapperNode [2024-11-25 05:16:26,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:16:26,757 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:16:26,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:16:26,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:16:26,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:26,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:26,971 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-25 05:16:26,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:16:26,972 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:16:26,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:16:26,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:16:26,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:26,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:27,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:27,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:27,155 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:27,170 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:27,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:27,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:27,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:27,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:16:27,263 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:16:27,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:16:27,263 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:16:27,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:26" (1/1) ... [2024-11-25 05:16:27,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:16:27,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:16:27,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:16:27,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8307f60-8a4e-44e3-82c8-4e70f14a976b/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:16:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:16:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 05:16:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:16:27,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:16:27,417 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:16:27,419 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:16:30,577 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-25 05:16:30,577 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:16:55,589 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:16:55,589 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-25 05:16:55,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:16:55 BoogieIcfgContainer [2024-11-25 05:16:55,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:16:55,591 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:16:55,591 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:16:55,602 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:16:55,602 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:16:55" (1/1) ... [2024-11-25 05:16:55,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:16:55,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:16:55,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2024-11-25 05:16:55,672 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2024-11-25 05:16:55,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 05:16:55,675 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:16:55,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:16:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:16:55,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 05:16:56,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:16:56,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-11-25 05:16:56,351 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-11-25 05:16:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 05:16:56,351 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:16:56,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:16:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat