./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label10.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_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/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_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/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_80aaad57-7caa-428b-b49b-a3b69fbdea2b/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 aeaa951d8e8580b5c332234156773ae22fea12bbbe739a78054c027b3309c22c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:34:20,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:34:21,043 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 00:34:21,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:34:21,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:34:21,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:34:21,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:34:21,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:34:21,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:34:21,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:34:21,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:34:21,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:34:21,073 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:34:21,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:34:21,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:34:21,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:34:21,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:34:21,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:34:21,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:34:21,076 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:34:21,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:34:21,077 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:34:21,078 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:34:21,078 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:34:21,078 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:34:21,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:34:21,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:34:21,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:34:21,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:34:21,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:34:21,081 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:34:21,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:34:21,081 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:34:21,081 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_80aaad57-7caa-428b-b49b-a3b69fbdea2b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aeaa951d8e8580b5c332234156773ae22fea12bbbe739a78054c027b3309c22c [2023-12-03 00:34:21,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:34:21,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:34:21,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:34:21,324 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:34:21,325 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:34:21,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/eca-rers2012/Problem10_label10.c [2023-12-03 00:34:24,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:34:24,328 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:34:24,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/sv-benchmarks/c/eca-rers2012/Problem10_label10.c [2023-12-03 00:34:24,343 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/data/eab3d25ea/a6656bcada154318b05ed559d89c3b44/FLAGb3ed58ca6 [2023-12-03 00:34:24,358 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/data/eab3d25ea/a6656bcada154318b05ed559d89c3b44 [2023-12-03 00:34:24,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:34:24,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:34:24,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:34:24,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:34:24,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:34:24,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:24,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a24c08f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24, skipping insertion in model container [2023-12-03 00:34:24,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:24,419 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:34:24,601 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_80aaad57-7caa-428b-b49b-a3b69fbdea2b/sv-benchmarks/c/eca-rers2012/Problem10_label10.c[5544,5557] [2023-12-03 00:34:24,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:34:24,734 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:34:24,764 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_80aaad57-7caa-428b-b49b-a3b69fbdea2b/sv-benchmarks/c/eca-rers2012/Problem10_label10.c[5544,5557] [2023-12-03 00:34:24,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:34:24,852 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:34:24,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24 WrapperNode [2023-12-03 00:34:24,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:34:24,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:34:24,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:34:24,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:34:24,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:24,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:24,942 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 598 [2023-12-03 00:34:24,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:34:24,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:34:24,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:34:24,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:34:24,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:24,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:24,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:24,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:25,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:25,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:25,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:25,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:25,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:34:25,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:34:25,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:34:25,036 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:34:25,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:34:24" (1/1) ... [2023-12-03 00:34:25,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:34:25,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:34:25,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:34:25,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:34:25,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:34:25,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:34:25,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:34:25,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:34:25,176 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:34:25,178 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:34:26,073 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:34:28,409 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:34:28,409 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 00:34:28,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:34:28 BoogieIcfgContainer [2023-12-03 00:34:28,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:34:28,412 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:34:28,412 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:34:28,419 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:34:28,419 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:34:28" (1/1) ... [2023-12-03 00:34:28,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:34:28,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:28,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-12-03 00:34:28,472 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-12-03 00:34:28,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 00:34:28,474 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:28,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:28,686 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 00:34:28,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:28,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-12-03 00:34:28,753 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-03 00:34:28,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 00:34:28,754 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:28,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:40,105 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 00:34:40,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:40,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2023-12-03 00:34:40,390 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2023-12-03 00:34:40,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 00:34:40,392 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:40,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:34:57,653 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 00:34:58,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:34:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 26 states and 43 transitions. [2023-12-03 00:34:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 43 transitions. [2023-12-03 00:34:58,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 00:34:58,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:34:58,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:34:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:35:15,155 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 00:35:15,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:35:15,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 46 transitions. [2023-12-03 00:35:15,319 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2023-12-03 00:35:15,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 00:35:15,320 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:35:15,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:35:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:35:26,368 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 00:35:26,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:35:26,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 33 states and 53 transitions. [2023-12-03 00:35:26,952 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 53 transitions. [2023-12-03 00:35:26,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 00:35:26,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:35:26,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:35:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:35:37,859 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 00:35:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:35:38,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2023-12-03 00:35:38,207 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2023-12-03 00:35:38,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 00:35:38,207 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-12-03 00:35:38,215 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 00:35:38,389 INFO L560 CodeCheckObserver]: Invariant with dag size 21 [2023-12-03 00:35:38,396 INFO L560 CodeCheckObserver]: Invariant with dag size 21 [2023-12-03 00:35:38,397 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 00:35:38,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:35:38 ImpRootNode [2023-12-03 00:35:38,398 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:35:38,399 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:35:38,399 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:35:38,399 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:35:38,400 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:34:28" (3/4) ... [2023-12-03 00:35:38,402 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 00:35:38,422 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 195 nodes and edges [2023-12-03 00:35:38,424 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-03 00:35:38,425 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 00:35:38,427 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 00:35:38,571 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 00:35:38,571 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 00:35:38,572 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:35:38,572 INFO L158 Benchmark]: Toolchain (without parser) took 74210.60ms. Allocated memory was 132.1MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 89.4MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 214.3MB. Max. memory is 16.1GB. [2023-12-03 00:35:38,573 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:35:38,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.45ms. Allocated memory is still 132.1MB. Free memory was 89.0MB in the beginning and 60.9MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-12-03 00:35:38,573 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.58ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 60.9MB in the beginning and 128.5MB in the end (delta: -67.6MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-12-03 00:35:38,574 INFO L158 Benchmark]: Boogie Preprocessor took 80.58ms. Allocated memory is still 159.4MB. Free memory was 128.5MB in the beginning and 124.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:35:38,574 INFO L158 Benchmark]: RCFGBuilder took 3375.00ms. Allocated memory was 159.4MB in the beginning and 270.5MB in the end (delta: 111.1MB). Free memory was 124.3MB in the beginning and 116.8MB in the end (delta: 7.5MB). Peak memory consumption was 156.3MB. Max. memory is 16.1GB. [2023-12-03 00:35:38,574 INFO L158 Benchmark]: CodeCheck took 69986.44ms. Allocated memory was 270.5MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 116.8MB in the beginning and 1.1GB in the end (delta: -985.3MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. [2023-12-03 00:35:38,574 INFO L158 Benchmark]: Witness Printer took 173.00ms. Allocated memory is still 1.3GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 00:35:38,576 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: 69.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 212 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 198 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 116 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 429 IncrementalHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 82 mSDtfsCounter, 429 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 688 GetRequests, 598 SyntacticMatches, 30 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 67.0s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 822 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 24/65 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: 158]: 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: 592]: Loop Invariant Derived loop invariant: ((((14 == a4) && (a12 == 0)) && (((a19 < 6) || !((a10 == 2))) || (a1 < 151))) || (((6 < a19) && (14 == a4)) && (a12 == 0))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((a1 < 219) && (14 == a4)) && (a12 == 0)) || (((!((a19 == 6)) || !((a10 == 2))) && (14 == a4)) && (a12 == 0))) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.45ms. Allocated memory is still 132.1MB. Free memory was 89.0MB in the beginning and 60.9MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.58ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 60.9MB in the beginning and 128.5MB in the end (delta: -67.6MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.58ms. Allocated memory is still 159.4MB. Free memory was 128.5MB in the beginning and 124.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3375.00ms. Allocated memory was 159.4MB in the beginning and 270.5MB in the end (delta: 111.1MB). Free memory was 124.3MB in the beginning and 116.8MB in the end (delta: 7.5MB). Peak memory consumption was 156.3MB. Max. memory is 16.1GB. * CodeCheck took 69986.44ms. Allocated memory was 270.5MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 116.8MB in the beginning and 1.1GB in the end (delta: -985.3MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. * Witness Printer took 173.00ms. Allocated memory is still 1.3GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 00:35:38,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80aaad57-7caa-428b-b49b-a3b69fbdea2b/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