./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV --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 ddf982557921584bb127c3d2f445aa0e6d0bc14c3d676da7af6c5c29bbe3794a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:57:27,990 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:57:28,095 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-11 23:57:28,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:57:28,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:57:28,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:57:28,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:57:28,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:57:28,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:57:28,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:57:28,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:57:28,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:57:28,149 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:57:28,151 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:57:28,151 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:57:28,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:57:28,152 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:57:28,153 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:57:28,153 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:57:28,153 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:57:28,154 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:57:28,155 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:57:28,155 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:57:28,157 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:57:28,158 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:57:28,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:57:28,159 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:57:28,159 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:57:28,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:57:28,160 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:57:28,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:57:28,162 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:57:28,162 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_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddf982557921584bb127c3d2f445aa0e6d0bc14c3d676da7af6c5c29bbe3794a [2023-11-11 23:57:28,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:57:28,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:57:28,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:57:28,542 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:57:28,543 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:57:28,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2023-11-11 23:57:31,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:57:31,967 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:57:31,967 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2023-11-11 23:57:31,975 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/data/5899ee04d/39b6d331616f4901994e778e647fac33/FLAGe8f642bd6 [2023-11-11 23:57:31,988 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/data/5899ee04d/39b6d331616f4901994e778e647fac33 [2023-11-11 23:57:31,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:57:31,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:57:31,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:57:31,993 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:57:31,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:57:31,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:57:31" (1/1) ... [2023-11-11 23:57:32,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c0ca14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32, skipping insertion in model container [2023-11-11 23:57:32,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:57:31" (1/1) ... [2023-11-11 23:57:32,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:57:32,203 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_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2023-11-11 23:57:32,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:57:32,219 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:57:32,239 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_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2023-11-11 23:57:32,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:57:32,258 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:57:32,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32 WrapperNode [2023-11-11 23:57:32,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:57:32,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:57:32,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:57:32,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:57:32,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,292 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2023-11-11 23:57:32,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:57:32,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:57:32,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:57:32,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:57:32,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,312 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:57:32,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:57:32,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:57:32,313 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:57:32,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:57:32,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:57:32,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:57:32,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:57:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:57:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:57:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:57:32,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:57:32,435 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:57:32,437 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:57:32,555 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:57:32,572 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:57:32,572 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:57:32,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:57:32 BoogieIcfgContainer [2023-11-11 23:57:32,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:57:32,576 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:57:32,576 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:57:32,586 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:57:32,586 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:57:32,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:32,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2023-11-11 23:57:32,654 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2023-11-11 23:57:32,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:57:32,656 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:32,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:32,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:57:32,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:32,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2023-11-11 23:57:32,863 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2023-11-11 23:57:32,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:57:32,864 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:32,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:33,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:57:33,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:33,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2023-11-11 23:57:33,296 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2023-11-11 23:57:33,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:57:33,300 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:33,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:33,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:57:33,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 13 states and 19 transitions. [2023-11-11 23:57:33,748 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 19 transitions. [2023-11-11 23:57:33,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:57:33,749 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:33,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-11 23:57:34,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:34,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 10 states and 16 transitions. [2023-11-11 23:57:34,038 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 16 transitions. [2023-11-11 23:57:34,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:57:34,038 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-11 23:57:34,048 INFO L753 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-11 23:57:34,079 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:57:34,084 INFO L560 CodeCheckObserver]: Invariant with dag size 14 [2023-11-11 23:57:34,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:57:34 ImpRootNode [2023-11-11 23:57:34,092 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:57:34,095 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:57:34,095 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:57:34,096 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:57:34,096 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:57:32" (3/4) ... [2023-11-11 23:57:34,102 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:57:34,114 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-11 23:57:34,114 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-11 23:57:34,114 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-11 23:57:34,115 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:57:34,228 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:57:34,232 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:57:34,232 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:57:34,233 INFO L158 Benchmark]: Toolchain (without parser) took 2241.50ms. Allocated memory was 157.3MB in the beginning and 218.1MB in the end (delta: 60.8MB). Free memory was 111.3MB in the beginning and 160.7MB in the end (delta: -49.4MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-11-11 23:57:34,233 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 157.3MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:57:34,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.78ms. Allocated memory is still 157.3MB. Free memory was 110.7MB in the beginning and 100.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:57:34,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.40ms. Allocated memory is still 157.3MB. Free memory was 100.2MB in the beginning and 99.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:57:34,240 INFO L158 Benchmark]: Boogie Preprocessor took 18.47ms. Allocated memory is still 157.3MB. Free memory was 99.1MB in the beginning and 98.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:57:34,240 INFO L158 Benchmark]: RCFGBuilder took 262.37ms. Allocated memory is still 157.3MB. Free memory was 98.1MB in the beginning and 87.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:57:34,241 INFO L158 Benchmark]: CodeCheck took 1516.20ms. Allocated memory was 157.3MB in the beginning and 218.1MB in the end (delta: 60.8MB). Free memory was 87.1MB in the beginning and 164.9MB in the end (delta: -77.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:57:34,241 INFO L158 Benchmark]: Witness Printer took 137.37ms. Allocated memory is still 218.1MB. Free memory was 164.9MB in the beginning and 160.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:57:34,244 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: 1.4s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 44 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 221 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 6/10 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: 48]: 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((53 + main__x) <= (2 * main__y)) || ((main__x + 50) <= 0)) || ((2 + main__x) <= main__y)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 157.3MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.78ms. Allocated memory is still 157.3MB. Free memory was 110.7MB in the beginning and 100.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.40ms. Allocated memory is still 157.3MB. Free memory was 100.2MB in the beginning and 99.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.47ms. Allocated memory is still 157.3MB. Free memory was 99.1MB in the beginning and 98.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 262.37ms. Allocated memory is still 157.3MB. Free memory was 98.1MB in the beginning and 87.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1516.20ms. Allocated memory was 157.3MB in the beginning and 218.1MB in the end (delta: 60.8MB). Free memory was 87.1MB in the beginning and 164.9MB in the end (delta: -77.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 137.37ms. Allocated memory is still 218.1MB. Free memory was 164.9MB in the beginning and 160.7MB 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! [2023-11-11 23:57:34,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_060e7c0a-1de9-4a09-bfbb-9fb370a5ea61/bin/ukojak-verify-0OAaufAVZV/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