./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/hh2012-ex1b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/hh2012-ex1b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL --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 7ce79fe11836d82ec064e02fff135ad9866417774e7d276b3384b4d4dde863b5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:20:32,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:20:32,945 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:20:32,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:20:32,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:20:32,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:20:32,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:20:32,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:20:32,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:20:32,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:20:32,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:20:32,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:20:32,980 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:20:32,981 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:20:32,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:20:32,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:20:32,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:20:32,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:20:32,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:20:32,984 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:20:32,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:20:32,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:20:32,986 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:20:32,987 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:20:32,987 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:20:32,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:20:32,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:20:32,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:20:32,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:20:32,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:20:32,990 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:20:32,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:20:32,991 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:20:32,991 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_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ce79fe11836d82ec064e02fff135ad9866417774e7d276b3384b4d4dde863b5 [2023-11-19 03:20:33,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:20:33,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:20:33,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:20:33,355 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:20:33,355 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:20:33,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loop-lit/hh2012-ex1b.i [2023-11-19 03:20:36,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:20:36,647 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:20:36,648 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/sv-benchmarks/c/loop-lit/hh2012-ex1b.i [2023-11-19 03:20:36,658 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/data/2e7d40ce9/ba3faa27155b45a7b25c2a4e15dbcc1d/FLAG98b5f83eb [2023-11-19 03:20:36,673 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/data/2e7d40ce9/ba3faa27155b45a7b25c2a4e15dbcc1d [2023-11-19 03:20:36,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:20:36,677 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:20:36,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:20:36,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:20:36,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:20:36,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe6e2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36, skipping insertion in model container [2023-11-19 03:20:36,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:20:36,876 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_042402f0-0fd0-4c37-9d29-ac6e9052924b/sv-benchmarks/c/loop-lit/hh2012-ex1b.i[800,813] [2023-11-19 03:20:36,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:20:36,899 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:20:36,909 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_042402f0-0fd0-4c37-9d29-ac6e9052924b/sv-benchmarks/c/loop-lit/hh2012-ex1b.i[800,813] [2023-11-19 03:20:36,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:20:36,925 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:20:36,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36 WrapperNode [2023-11-19 03:20:36,925 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:20:36,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:20:36,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:20:36,927 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:20:36,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,942 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,960 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-19 03:20:36,961 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:20:36,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:20:36,962 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:20:36,962 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:20:36,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,986 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:36,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:20:36,990 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:20:36,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:20:36,991 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:20:36,992 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:36" (1/1) ... [2023-11-19 03:20:37,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:20:37,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:20:37,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:20:37,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:20:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:20:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:20:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:20:37,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:20:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:20:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:20:37,138 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:20:37,139 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:20:37,313 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:20:37,339 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:20:37,339 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:20:37,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:37 BoogieIcfgContainer [2023-11-19 03:20:37,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:20:37,344 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:20:37,344 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:20:37,354 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:20:37,355 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:37" (1/1) ... [2023-11-19 03:20:37,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:20:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2023-11-19 03:20:37,422 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-11-19 03:20:37,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:20:37,424 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:37,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:37,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:20:37,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:37,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2023-11-19 03:20:37,749 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2023-11-19 03:20:37,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:20:37,749 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:37,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:37,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:20:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2023-11-19 03:20:37,973 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2023-11-19 03:20:37,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:20:37,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:37,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:38,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:20:38,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:38,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 32 transitions. [2023-11-19 03:20:38,300 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-11-19 03:20:38,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:20:38,301 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:38,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:20:38,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:38,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 33 transitions. [2023-11-19 03:20:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2023-11-19 03:20:38,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:20:38,456 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:38,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:38,601 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 03:20:38,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 32 transitions. [2023-11-19 03:20:38,647 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2023-11-19 03:20:38,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 03:20:38,649 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:38,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:38,759 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 03:20:39,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:39,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 48 transitions. [2023-11-19 03:20:39,359 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2023-11-19 03:20:39,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:20:39,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:39,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:39,467 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 03:20:39,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:39,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 50 transitions. [2023-11-19 03:20:39,535 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2023-11-19 03:20:39,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 03:20:39,539 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:39,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:39,751 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-19 03:20:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 33 states and 49 transitions. [2023-11-19 03:20:40,620 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2023-11-19 03:20:40,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:20:40,621 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:20:40,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:20:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:20:40,746 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-11-19 03:20:40,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:20:40,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 29 states and 45 transitions. [2023-11-19 03:20:40,816 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2023-11-19 03:20:40,817 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:20:40,817 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2023-11-19 03:20:40,826 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:20:40,882 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:20:40,886 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:20:40,887 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:20:40,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:20:40 ImpRootNode [2023-11-19 03:20:40,887 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:20:40,888 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:20:40,888 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:20:40,888 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:20:40,889 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:37" (3/4) ... [2023-11-19 03:20:40,891 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:20:40,894 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-19 03:20:40,898 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 03:20:40,899 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 03:20:40,899 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:20:40,899 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:20:40,983 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:20:40,983 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:20:40,984 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:20:40,984 INFO L158 Benchmark]: Toolchain (without parser) took 4307.02ms. Allocated memory is still 161.5MB. Free memory was 109.4MB in the beginning and 82.3MB in the end (delta: 27.1MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2023-11-19 03:20:40,985 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 88.4MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:20:40,985 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.87ms. Allocated memory is still 161.5MB. Free memory was 109.1MB in the beginning and 99.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:20:40,986 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.09ms. Allocated memory is still 161.5MB. Free memory was 98.8MB in the beginning and 97.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:20:40,986 INFO L158 Benchmark]: Boogie Preprocessor took 28.22ms. Allocated memory is still 161.5MB. Free memory was 97.5MB in the beginning and 96.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:20:40,987 INFO L158 Benchmark]: RCFGBuilder took 352.52ms. Allocated memory is still 161.5MB. Free memory was 96.3MB in the beginning and 128.6MB in the end (delta: -32.3MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2023-11-19 03:20:40,987 INFO L158 Benchmark]: CodeCheck took 3543.62ms. Allocated memory is still 161.5MB. Free memory was 128.6MB in the beginning and 86.4MB in the end (delta: 42.3MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2023-11-19 03:20:40,988 INFO L158 Benchmark]: Witness Printer took 95.75ms. Allocated memory is still 161.5MB. Free memory was 86.4MB in the beginning and 82.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:20:40,990 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 340 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 211 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 297 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 696 IncrementalHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 297 mSolverCounterUnsat, 146 mSDtfsCounter, 696 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1497 GetRequests, 1414 SyntacticMatches, 11 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1849 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 215 ConstructedInterpolants, 0 QuantifiedInterpolants, 349 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 355/357 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: 13]: 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: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 88.4MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.87ms. Allocated memory is still 161.5MB. Free memory was 109.1MB in the beginning and 99.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.09ms. Allocated memory is still 161.5MB. Free memory was 98.8MB in the beginning and 97.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.22ms. Allocated memory is still 161.5MB. Free memory was 97.5MB in the beginning and 96.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 352.52ms. Allocated memory is still 161.5MB. Free memory was 96.3MB in the beginning and 128.6MB in the end (delta: -32.3MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * CodeCheck took 3543.62ms. Allocated memory is still 161.5MB. Free memory was 128.6MB in the beginning and 86.4MB in the end (delta: 42.3MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. * Witness Printer took 95.75ms. Allocated memory is still 161.5MB. Free memory was 86.4MB in the beginning and 82.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:20:41,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_042402f0-0fd0-4c37-9d29-ac6e9052924b/bin/ukojak-verify-G8NBE6pJGL/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