./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/underapprox_2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/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_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/underapprox_2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/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_21d0d53c-d28a-4a96-91c3-091e073acdd1/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 c187a61b21cc0091fb22a1c4e23554540f928674895dd149d9c60db42e5420c7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:23:15,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:23:15,567 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:23:15,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:23:15,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:23:15,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:23:15,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:23:15,614 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:23:15,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:23:15,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:23:15,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:23:15,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:23:15,618 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:23:15,618 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:23:15,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:23:15,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:23:15,619 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:23:15,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:23:15,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:23:15,623 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:23:15,623 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:23:15,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:23:15,624 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:23:15,624 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:23:15,625 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:23:15,625 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:23:15,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:23:15,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:23:15,626 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:23:15,626 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:23:15,627 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:23:15,627 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:23:15,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:23:15,628 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_21d0d53c-d28a-4a96-91c3-091e073acdd1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c187a61b21cc0091fb22a1c4e23554540f928674895dd149d9c60db42e5420c7 [2024-11-08 22:23:15,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:23:15,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:23:15,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:23:15,937 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:23:15,938 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:23:15,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/loop-acceleration/underapprox_2-2.c Unable to find full path for "g++" [2024-11-08 22:23:17,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:23:18,186 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:23:18,187 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/sv-benchmarks/c/loop-acceleration/underapprox_2-2.c [2024-11-08 22:23:18,193 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/data/b79b7e235/1f7461d26faa441e9d3cd2d17ee2d215/FLAG1213b8d2f [2024-11-08 22:23:18,206 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/data/b79b7e235/1f7461d26faa441e9d3cd2d17ee2d215 [2024-11-08 22:23:18,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:23:18,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:23:18,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:23:18,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:23:18,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:23:18,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb1f58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18, skipping insertion in model container [2024-11-08 22:23:18,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:23:18,465 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_21d0d53c-d28a-4a96-91c3-091e073acdd1/sv-benchmarks/c/loop-acceleration/underapprox_2-2.c[327,340] [2024-11-08 22:23:18,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:23:18,490 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:23:18,501 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_21d0d53c-d28a-4a96-91c3-091e073acdd1/sv-benchmarks/c/loop-acceleration/underapprox_2-2.c[327,340] [2024-11-08 22:23:18,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:23:18,521 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:23:18,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18 WrapperNode [2024-11-08 22:23:18,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:23:18,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:23:18,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:23:18,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:23:18,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,552 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2024-11-08 22:23:18,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:23:18,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:23:18,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:23:18,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:23:18,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:23:18,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:23:18,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:23:18,574 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:23:18,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:23:18,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:23:18,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:23:18,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:23:18,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:23:18,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:23:18,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:23:18,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:23:18,720 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:23:18,722 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:23:18,826 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-08 22:23:18,826 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:23:18,848 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:23:18,848 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:23:18,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:23:18 BoogieIcfgContainer [2024-11-08 22:23:18,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:23:18,849 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:23:18,849 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:23:18,861 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:23:18,861 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:23:18" (1/1) ... [2024-11-08 22:23:18,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:23:18,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:23:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2024-11-08 22:23:18,930 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2024-11-08 22:23:18,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 22:23:18,934 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:23:18,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:23:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:23:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:23:19,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:23:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2024-11-08 22:23:19,227 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-11-08 22:23:19,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 22:23:19,228 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:23:19,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:23:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:23:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:23:19,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:23:19,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-08 22:23:19,389 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-08 22:23:19,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:23:19,389 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:23:19,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:23:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:23:19,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:23:19,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:23:19,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-08 22:23:19,689 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-08 22:23:19,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:23:19,689 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:23:19,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:23:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:23:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:23:20,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:23:20,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-11-08 22:23:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-11-08 22:23:20,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 22:23:20,116 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:23:20,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:23:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:23:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:23:20,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:23:20,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-11-08 22:23:20,593 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-11-08 22:23:20,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 22:23:20,594 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:23:20,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:23:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:23:20,814 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:23:21,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:23:21,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2024-11-08 22:23:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2024-11-08 22:23:21,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 22:23:21,050 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:23:21,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:23:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:23:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:23:21,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:23:21,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2024-11-08 22:23:21,546 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2024-11-08 22:23:21,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 22:23:21,546 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:23:21,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:23:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:23:21,986 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:23:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:23:22,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2024-11-08 22:23:22,341 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2024-11-08 22:23:22,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 22:23:22,341 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:23:22,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:23:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:23:22,595 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:23:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:23:22,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 18 states and 17 transitions. [2024-11-08 22:23:22,816 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2024-11-08 22:23:22,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 22:23:22,817 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2024-11-08 22:23:22,828 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-08 22:23:23,068 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 22:23:23,068 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 22:23:23,069 INFO L75 FloydHoareUtils]: For program point L7(line 7) no Hoare annotation was computed. [2024-11-08 22:23:23,069 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2024-11-08 22:23:23,070 INFO L77 FloydHoareUtils]: At program point L16-1(lines 16 19) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 0 (div |ULTIMATE.start_main_~x~0#1| 4294967296))) [2024-11-08 22:23:23,070 INFO L77 FloydHoareUtils]: At program point L16-3(lines 16 19) the Hoare annotation is: (let ((.cse0 (div |ULTIMATE.start_main_~x~0#1| 4294967296))) (or (and (< 2 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 3)) (and (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 0 .cse0)) (and (< 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) (and (<= |ULTIMATE.start_main_~x~0#1| 4) (< 3 |ULTIMATE.start_main_~x~0#1|)) (and (<= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) 6) (<= .cse0 0) (< 5 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 5) (< 4 |ULTIMATE.start_main_~x~0#1|)))) [2024-11-08 22:23:23,070 INFO L77 FloydHoareUtils]: At program point L16-4(lines 16 19) the Hoare annotation is: (and (= 6 (mod |ULTIMATE.start_main_~x~0#1| 4294967296)) (<= 0 (div |ULTIMATE.start_main_~x~0#1| 4294967296))) [2024-11-08 22:23:23,071 INFO L77 FloydHoareUtils]: At program point L6(lines 6 8) the Hoare annotation is: (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) [2024-11-08 22:23:23,071 INFO L77 FloydHoareUtils]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2024-11-08 22:23:23,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:23:23 ImpRootNode [2024-11-08 22:23:23,092 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:23:23,093 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:23:23,093 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:23:23,093 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:23:23,094 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:23:18" (3/4) ... [2024-11-08 22:23:23,097 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 22:23:23,108 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-08 22:23:23,108 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 22:23:23,109 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 22:23:23,109 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 22:23:23,215 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 22:23:23,215 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-08 22:23:23,215 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:23:23,216 INFO L158 Benchmark]: Toolchain (without parser) took 5005.38ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 90.1MB in the beginning and 94.1MB in the end (delta: -4.0MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2024-11-08 22:23:23,217 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:23:23,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.53ms. Allocated memory is still 136.3MB. Free memory was 90.1MB in the beginning and 77.8MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:23:23,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.95ms. Allocated memory is still 136.3MB. Free memory was 77.8MB in the beginning and 76.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:23:23,219 INFO L158 Benchmark]: Boogie Preprocessor took 19.46ms. Allocated memory is still 136.3MB. Free memory was 76.7MB in the beginning and 75.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:23:23,220 INFO L158 Benchmark]: RCFGBuilder took 275.42ms. Allocated memory is still 136.3MB. Free memory was 75.3MB in the beginning and 103.8MB in the end (delta: -28.4MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2024-11-08 22:23:23,220 INFO L158 Benchmark]: CodeCheck took 4243.14ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 103.8MB in the beginning and 98.3MB in the end (delta: 5.4MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2024-11-08 22:23:23,221 INFO L158 Benchmark]: Witness Printer took 122.66ms. Allocated memory is still 165.7MB. Free memory was 98.3MB in the beginning and 94.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 22:23:23,225 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: 3.9s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 138 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 351 IncrementalHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 138 mSolverCounterUnsat, 45 mSDtfsCounter, 351 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 678 GetRequests, 571 SyntacticMatches, 57 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1568 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 13/140 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: 7]: 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: 16]: Loop Invariant Derived loop invariant: (((((((2 < x) && (x <= 3)) || ((x <= 1) && (0 <= 0))) || ((1 < x) && (x <= 2))) || ((x <= 4) && (3 < x))) || (((x <= 6) && (0 <= 0)) && (5 < x))) || ((x <= 5) && (4 < x))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.53ms. Allocated memory is still 136.3MB. Free memory was 90.1MB in the beginning and 77.8MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.95ms. Allocated memory is still 136.3MB. Free memory was 77.8MB in the beginning and 76.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.46ms. Allocated memory is still 136.3MB. Free memory was 76.7MB in the beginning and 75.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 275.42ms. Allocated memory is still 136.3MB. Free memory was 75.3MB in the beginning and 103.8MB in the end (delta: -28.4MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * CodeCheck took 4243.14ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 103.8MB in the beginning and 98.3MB in the end (delta: 5.4MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. * Witness Printer took 122.66ms. Allocated memory is still 165.7MB. Free memory was 98.3MB in the beginning and 94.1MB 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! [2024-11-08 22:23:23,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21d0d53c-d28a-4a96-91c3-091e073acdd1/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