./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk --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 b38f47c3dcd7731e15cfc2cee00261f352bac0ed4fe94aeeb81a5c76defb252d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:42:16,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:42:16,160 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:42:16,164 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:42:16,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:42:16,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:42:16,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:42:16,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:42:16,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:42:16,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:42:16,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:42:16,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:42:16,202 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:42:16,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:42:16,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:42:16,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:42:16,204 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:42:16,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:42:16,205 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:42:16,205 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:42:16,205 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:42:16,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:42:16,206 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:42:16,207 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:42:16,207 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:42:16,207 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:42:16,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:42:16,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:42:16,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:42:16,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:42:16,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:42:16,220 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:42:16,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:42:16,220 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_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b38f47c3dcd7731e15cfc2cee00261f352bac0ed4fe94aeeb81a5c76defb252d [2024-11-09 00:42:16,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:42:16,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:42:16,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:42:16,585 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:42:16,588 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:42:16,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i Unable to find full path for "g++" [2024-11-09 00:42:18,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:42:18,837 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:42:18,840 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2024-11-09 00:42:18,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/data/b6cf96e8e/b9b932df553d408195401b0c5b55dc0c/FLAG5a22d3fec [2024-11-09 00:42:18,863 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/data/b6cf96e8e/b9b932df553d408195401b0c5b55dc0c [2024-11-09 00:42:18,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:42:18,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:42:18,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:42:18,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:42:18,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:42:18,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:42:18" (1/1) ... [2024-11-09 00:42:18,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ae6c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:18, skipping insertion in model container [2024-11-09 00:42:18,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:42:18" (1/1) ... [2024-11-09 00:42:18,929 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:42:19,129 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_0d5af438-e2bb-429a-a846-6b77250359da/sv-benchmarks/c/loop-invgen/NetBSD_loop.i[893,906] [2024-11-09 00:42:19,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:42:19,152 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:42:19,164 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_0d5af438-e2bb-429a-a846-6b77250359da/sv-benchmarks/c/loop-invgen/NetBSD_loop.i[893,906] [2024-11-09 00:42:19,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:42:19,182 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:42:19,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19 WrapperNode [2024-11-09 00:42:19,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:42:19,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:42:19,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:42:19,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:42:19,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,215 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2024-11-09 00:42:19,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:42:19,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:42:19,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:42:19,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:42:19,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,236 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,237 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:42:19,239 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:42:19,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:42:19,240 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:42:19,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:42:19,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:42:19,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:42:19,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:42:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:42:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:42:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:42:19,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:42:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 00:42:19,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 00:42:19,372 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:42:19,374 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:42:19,531 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-09 00:42:19,531 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:42:19,559 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:42:19,559 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:42:19,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:42:19 BoogieIcfgContainer [2024-11-09 00:42:19,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:42:19,560 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:42:19,561 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:42:19,569 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:42:19,569 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:42:19" (1/1) ... [2024-11-09 00:42:19,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:42:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:42:19,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2024-11-09 00:42:19,632 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2024-11-09 00:42:19,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:42:19,634 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:42:19,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:42:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:42:19,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:42:20,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:42:20,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 26 transitions. [2024-11-09 00:42:20,081 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2024-11-09 00:42:20,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 00:42:20,085 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:42:20,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:42:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:42:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:42:20,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:42:20,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 33 transitions. [2024-11-09 00:42:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2024-11-09 00:42:20,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 00:42:20,478 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:42:20,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:42:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:42:20,623 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 00:42:20,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:42:20,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 44 transitions. [2024-11-09 00:42:20,906 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2024-11-09 00:42:20,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 00:42:20,907 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:42:20,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:42:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:42:21,193 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 00:42:21,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:42:21,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 34 states and 53 transitions. [2024-11-09 00:42:21,426 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2024-11-09 00:42:21,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 00:42:21,429 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:42:21,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:42:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:42:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 00:42:21,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:42:21,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 26 states and 36 transitions. [2024-11-09 00:42:21,694 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2024-11-09 00:42:21,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 00:42:21,696 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:42:21,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:42:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:42:21,864 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-09 00:42:22,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:42:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 19 states and 27 transitions. [2024-11-09 00:42:22,567 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2024-11-09 00:42:22,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 00:42:22,569 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2024-11-09 00:42:22,579 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-09 00:42:22,662 INFO L77 FloydHoareUtils]: At program point L33(line 33) the Hoare annotation is: true [2024-11-09 00:42:22,662 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-09 00:42:22,662 INFO L77 FloydHoareUtils]: At program point L44(lines 25 45) the Hoare annotation is: true [2024-11-09 00:42:22,663 INFO L77 FloydHoareUtils]: At program point L42(line 42) the Hoare annotation is: true [2024-11-09 00:42:22,663 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-09 00:42:22,663 INFO L77 FloydHoareUtils]: At program point L38-1(lines 38 43) the Hoare annotation is: true [2024-11-09 00:42:22,664 INFO L77 FloydHoareUtils]: At program point L38-3(lines 38 43) the Hoare annotation is: true [2024-11-09 00:42:22,664 INFO L77 FloydHoareUtils]: At program point L41(line 41) the Hoare annotation is: true [2024-11-09 00:42:22,664 INFO L77 FloydHoareUtils]: At program point L41-1(line 41) the Hoare annotation is: true [2024-11-09 00:42:22,665 INFO L77 FloydHoareUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2024-11-09 00:42:22,665 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2024-11-09 00:42:22,665 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 17 22) the Hoare annotation is: true [2024-11-09 00:42:22,666 INFO L77 FloydHoareUtils]: At program point L19(line 19) the Hoare annotation is: true [2024-11-09 00:42:22,667 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: true [2024-11-09 00:42:22,667 INFO L77 FloydHoareUtils]: At program point L18(lines 18 20) the Hoare annotation is: true [2024-11-09 00:42:22,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:42:22 ImpRootNode [2024-11-09 00:42:22,692 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:42:22,693 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:42:22,693 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:42:22,694 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:42:22,694 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:42:19" (3/4) ... [2024-11-09 00:42:22,700 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 00:42:22,704 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 00:42:22,710 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-09 00:42:22,711 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 00:42:22,711 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 00:42:22,712 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 00:42:22,804 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:42:22,805 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-09 00:42:22,805 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:42:22,806 INFO L158 Benchmark]: Toolchain (without parser) took 3938.09ms. Allocated memory was 134.2MB in the beginning and 220.2MB in the end (delta: 86.0MB). Free memory was 69.8MB in the beginning and 171.9MB in the end (delta: -102.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:42:22,806 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:42:22,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.20ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 69.6MB in the beginning and 145.1MB in the end (delta: -75.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-11-09 00:42:22,808 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.71ms. Allocated memory is still 182.5MB. Free memory was 145.1MB in the beginning and 143.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:42:22,808 INFO L158 Benchmark]: Boogie Preprocessor took 22.88ms. Allocated memory is still 182.5MB. Free memory was 143.9MB in the beginning and 143.0MB in the end (delta: 894.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:42:22,813 INFO L158 Benchmark]: RCFGBuilder took 320.48ms. Allocated memory is still 182.5MB. Free memory was 143.0MB in the beginning and 145.0MB in the end (delta: -2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 00:42:22,814 INFO L158 Benchmark]: CodeCheck took 3131.88ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 145.0MB in the beginning and 177.2MB in the end (delta: -32.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-11-09 00:42:22,814 INFO L158 Benchmark]: Witness Printer took 112.13ms. Allocated memory is still 220.2MB. Free memory was 176.1MB in the beginning and 171.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:42:22,820 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 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 174 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 159 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 603 IncrementalHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 159 mSolverCounterUnsat, 74 mSDtfsCounter, 603 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1000 GetRequests, 930 SyntacticMatches, 20 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 846 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 321 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 120/141 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: 19]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.20ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 69.6MB in the beginning and 145.1MB in the end (delta: -75.5MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.71ms. Allocated memory is still 182.5MB. Free memory was 145.1MB in the beginning and 143.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.88ms. Allocated memory is still 182.5MB. Free memory was 143.9MB in the beginning and 143.0MB in the end (delta: 894.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 320.48ms. Allocated memory is still 182.5MB. Free memory was 143.0MB in the beginning and 145.0MB in the end (delta: -2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 3131.88ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 145.0MB in the beginning and 177.2MB in the end (delta: -32.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 112.13ms. Allocated memory is still 220.2MB. Free memory was 176.1MB in the beginning and 171.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-09 00:42:22,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d5af438-e2bb-429a-a846-6b77250359da/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE