./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label04.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_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/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_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/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_7057038b-d9ed-4f9d-a11d-1c72fbea1413/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 1108eeb4bd20019b014e3c74d7da568cbd9d144764ba0dc8eabd0c3ee1f98907 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:48:25,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:48:25,162 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 02:48:25,167 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:48:25,168 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:48:25,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:48:25,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:48:25,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:48:25,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:48:25,193 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:48:25,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:48:25,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:48:25,194 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 02:48:25,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:48:25,195 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 02:48:25,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:48:25,196 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:48:25,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:48:25,197 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:48:25,198 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 02:48:25,198 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:48:25,200 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:48:25,201 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:48:25,201 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:48:25,202 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:48:25,202 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:48:25,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:48:25,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:48:25,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:48:25,204 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:48:25,204 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:48:25,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:48:25,205 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:48:25,205 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_7057038b-d9ed-4f9d-a11d-1c72fbea1413/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1108eeb4bd20019b014e3c74d7da568cbd9d144764ba0dc8eabd0c3ee1f98907 [2023-12-03 02:48:25,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:48:25,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:48:25,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:48:25,447 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:48:25,447 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:48:25,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/eca-rers2012/Problem11_label04.c [2023-12-03 02:48:28,239 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:48:28,500 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:48:28,501 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/sv-benchmarks/c/eca-rers2012/Problem11_label04.c [2023-12-03 02:48:28,515 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/data/84bca62d1/cb7d8c8cd1fd4ed9821103f8b42578e9/FLAG2e8c828ce [2023-12-03 02:48:28,530 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/data/84bca62d1/cb7d8c8cd1fd4ed9821103f8b42578e9 [2023-12-03 02:48:28,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:48:28,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:48:28,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:48:28,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:48:28,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:48:28,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:48:28" (1/1) ... [2023-12-03 02:48:28,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b849c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:28, skipping insertion in model container [2023-12-03 02:48:28,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:48:28" (1/1) ... [2023-12-03 02:48:28,598 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:48:28,779 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_7057038b-d9ed-4f9d-a11d-1c72fbea1413/sv-benchmarks/c/eca-rers2012/Problem11_label04.c[7746,7759] [2023-12-03 02:48:28,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:48:28,987 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:48:29,016 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_7057038b-d9ed-4f9d-a11d-1c72fbea1413/sv-benchmarks/c/eca-rers2012/Problem11_label04.c[7746,7759] [2023-12-03 02:48:29,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:48:29,127 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:48:29,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29 WrapperNode [2023-12-03 02:48:29,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:48:29,128 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:48:29,128 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:48:29,128 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:48:29,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29" (1/1) ... [2023-12-03 02:48:29,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29" (1/1) ... [2023-12-03 02:48:29,253 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2023-12-03 02:48:29,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:48:29,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:48:29,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:48:29,254 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:48:29,261 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29" (1/1) ... [2023-12-03 02:48:29,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29" (1/1) ... [2023-12-03 02:48:29,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29" (1/1) ... [2023-12-03 02:48:29,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29" (1/1) ... [2023-12-03 02:48:29,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29" (1/1) ... [2023-12-03 02:48:29,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29" (1/1) ... [2023-12-03 02:48:29,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29" (1/1) ... [2023-12-03 02:48:29,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29" (1/1) ... [2023-12-03 02:48:29,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:48:29,350 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:48:29,350 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:48:29,350 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:48:29,351 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:48:29" (1/1) ... [2023-12-03 02:48:29,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:48:29,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:48:29,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:48:29,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:48:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:48:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:48:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:48:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:48:29,481 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:48:29,483 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:48:30,898 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:48:36,520 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:48:36,521 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 02:48:36,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:48:36 BoogieIcfgContainer [2023-12-03 02:48:36,522 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:48:36,523 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:48:36,523 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:48:36,531 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:48:36,531 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:48:36" (1/1) ... [2023-12-03 02:48:36,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:48:36,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:48:36,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-12-03 02:48:36,586 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-12-03 02:48:36,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 02:48:36,588 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:48:36,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:48:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:48:36,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:48:36,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:48:36,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-12-03 02:48:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-03 02:48:36,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 02:48:36,929 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:48:36,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:48:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:49:11,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:49:12,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:49:12,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2023-12-03 02:49:12,211 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2023-12-03 02:49:12,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 02:49:12,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:49:12,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:49:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:50:47,772 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:50:50,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:50:50,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 30 states and 56 transitions. [2023-12-03 02:50:50,285 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 56 transitions. [2023-12-03 02:50:50,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 02:50:50,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:50:50,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:50:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:52:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:52:22,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:52:22,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 33 states and 63 transitions. [2023-12-03 02:52:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 63 transitions. [2023-12-03 02:52:22,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 02:52:22,615 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:52:22,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:52:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:53:17,076 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 02:53:18,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:53:18,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 37 states and 72 transitions. [2023-12-03 02:53:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 72 transitions. [2023-12-03 02:53:18,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 02:53:18,091 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:53:18,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:53:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:54:12,234 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 02:54:12,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 40 states and 75 transitions. [2023-12-03 02:54:12,839 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 75 transitions. [2023-12-03 02:54:12,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 02:54:12,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:12,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:54:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 02:55:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:07,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 28 states and 56 transitions. [2023-12-03 02:55:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 56 transitions. [2023-12-03 02:55:07,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 02:55:07,067 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-12-03 02:55:07,073 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 02:55:07,388 INFO L560 CodeCheckObserver]: Invariant with dag size 25 [2023-12-03 02:55:07,395 INFO L560 CodeCheckObserver]: Invariant with dag size 27 [2023-12-03 02:55:07,396 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 02:55:07,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:55:07 ImpRootNode [2023-12-03 02:55:07,397 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:55:07,397 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:55:07,397 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:55:07,398 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:55:07,398 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:48:36" (3/4) ... [2023-12-03 02:55:07,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 02:55:07,425 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 273 nodes and edges [2023-12-03 02:55:07,428 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-12-03 02:55:07,430 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 02:55:07,432 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 02:55:07,608 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 02:55:07,608 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 02:55:07,608 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:55:07,609 INFO L158 Benchmark]: Toolchain (without parser) took 399074.48ms. Allocated memory was 151.0MB in the beginning and 4.0GB in the end (delta: 3.9GB). Free memory was 108.0MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2023-12-03 02:55:07,609 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:55:07,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 591.79ms. Allocated memory is still 151.0MB. Free memory was 108.0MB in the beginning and 62.4MB in the end (delta: 45.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-12-03 02:55:07,610 INFO L158 Benchmark]: Boogie Procedure Inliner took 125.01ms. Allocated memory is still 151.0MB. Free memory was 62.4MB in the beginning and 104.4MB in the end (delta: -42.0MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-12-03 02:55:07,611 INFO L158 Benchmark]: Boogie Preprocessor took 95.48ms. Allocated memory is still 151.0MB. Free memory was 104.4MB in the beginning and 94.7MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 02:55:07,611 INFO L158 Benchmark]: RCFGBuilder took 7172.54ms. Allocated memory was 151.0MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 94.7MB in the beginning and 719.6MB in the end (delta: -624.9MB). Peak memory consumption was 385.6MB. Max. memory is 16.1GB. [2023-12-03 02:55:07,611 INFO L158 Benchmark]: CodeCheck took 390873.59ms. Allocated memory was 1.2GB in the beginning and 4.0GB in the end (delta: 2.9GB). Free memory was 719.6MB in the beginning and 2.4GB in the end (delta: -1.7GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2023-12-03 02:55:07,612 INFO L158 Benchmark]: Witness Printer took 210.95ms. Allocated memory is still 4.0GB. Free memory was 2.4GB in the beginning and 2.3GB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-03 02:55:07,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 390.5s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 270 SdHoareTripleChecker+Valid, 9.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 271 SdHoareTripleChecker+Invalid, 8.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 162 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 720 IncrementalHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 109 mSDtfsCounter, 720 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 918 GetRequests, 817 SyntacticMatches, 33 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1846 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 381.5s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 1485 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 36/86 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 175]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((a29 < 141) || (245 < a29)) || (0 < (a23 + 43))) || !((a4 == 1))) || !((a25 == 9))) && (a3 == 1)) && (a8 == 15)) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((245 < a29) || (0 < (a23 + 43))) || !((a4 == 1))) || !((a25 == 9))) && (a3 == 1)) && (a8 == 15)) || (((a29 < 141) && (a3 == 1)) && (a8 == 15))) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 591.79ms. Allocated memory is still 151.0MB. Free memory was 108.0MB in the beginning and 62.4MB in the end (delta: 45.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 125.01ms. Allocated memory is still 151.0MB. Free memory was 62.4MB in the beginning and 104.4MB in the end (delta: -42.0MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.48ms. Allocated memory is still 151.0MB. Free memory was 104.4MB in the beginning and 94.7MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 7172.54ms. Allocated memory was 151.0MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 94.7MB in the beginning and 719.6MB in the end (delta: -624.9MB). Peak memory consumption was 385.6MB. Max. memory is 16.1GB. * CodeCheck took 390873.59ms. Allocated memory was 1.2GB in the beginning and 4.0GB in the end (delta: 2.9GB). Free memory was 719.6MB in the beginning and 2.4GB in the end (delta: -1.7GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 210.95ms. Allocated memory is still 4.0GB. Free memory was 2.4GB in the beginning and 2.3GB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 02:55:07,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7057038b-d9ed-4f9d-a11d-1c72fbea1413/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE