./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.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_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/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_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/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_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/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 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:17:45,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:17:45,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:17:45,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:17:45,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:17:45,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:17:45,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:17:45,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:17:45,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:17:45,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:17:45,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:17:45,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:17:45,940 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:17:45,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:17:45,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:17:45,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:17:45,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:17:45,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:17:45,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:17:45,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:17:45,943 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:17:45,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:17:45,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:17:45,946 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:17:45,946 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:17:45,947 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:17:45,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:17:45,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:17:45,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:17:45,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:17:45,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:17:45,953 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:17:45,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:17:45,954 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_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 [2024-11-09 00:17:46,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:17:46,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:17:46,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:17:46,254 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:17:46,254 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:17:46,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c Unable to find full path for "g++" [2024-11-09 00:17:48,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:17:48,415 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:17:48,416 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2024-11-09 00:17:48,423 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/data/33a26b8cd/a71c7c116dc4471fac60d77b78a96adc/FLAGdacb2edee [2024-11-09 00:17:48,797 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/data/33a26b8cd/a71c7c116dc4471fac60d77b78a96adc [2024-11-09 00:17:48,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:17:48,802 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:17:48,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:17:48,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:17:48,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:17:48,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:17:48" (1/1) ... [2024-11-09 00:17:48,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3670fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:48, skipping insertion in model container [2024-11-09 00:17:48,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:17:48" (1/1) ... [2024-11-09 00:17:48,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:17:49,042 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_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2024-11-09 00:17:49,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:17:49,077 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:17:49,091 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_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2024-11-09 00:17:49,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:17:49,121 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:17:49,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49 WrapperNode [2024-11-09 00:17:49,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:17:49,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:17:49,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:17:49,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:17:49,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,157 INFO L138 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2024-11-09 00:17:49,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:17:49,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:17:49,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:17:49,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:17:49,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:17:49,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:17:49,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:17:49,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:17:49,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:17:49,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:17:49,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:17:49,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:17:49,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:17:49,259 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 00:17:49,259 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 00:17:49,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:17:49,259 INFO L130 BoogieDeclarations]: Found specification of procedure check [2024-11-09 00:17:49,260 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2024-11-09 00:17:49,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 00:17:49,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:17:49,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:17:49,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:17:49,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 00:17:49,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 00:17:49,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:17:49,342 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:17:49,344 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:17:49,554 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-09 00:17:49,554 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:17:49,642 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:17:49,643 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:17:49,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:17:49 BoogieIcfgContainer [2024-11-09 00:17:49,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:17:49,644 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:17:49,645 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:17:49,656 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:17:49,656 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:17:49" (1/1) ... [2024-11-09 00:17:49,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:17:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:17:49,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2024-11-09 00:17:49,720 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2024-11-09 00:17:49,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:17:49,725 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:17:49,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:17:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:17:50,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:17:50,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:17:50,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2024-11-09 00:17:50,426 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2024-11-09 00:17:50,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 00:17:50,428 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:17:50,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:17:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:17:50,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:17:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:17:50,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 34 states and 43 transitions. [2024-11-09 00:17:50,898 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2024-11-09 00:17:50,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 00:17:50,902 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:17:50,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:17:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:17:51,467 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 00:17:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:17:52,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 43 states and 59 transitions. [2024-11-09 00:17:52,109 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2024-11-09 00:17:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 00:17:52,110 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:17:52,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:17:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:17:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 00:17:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:17:53,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 50 states and 74 transitions. [2024-11-09 00:17:53,067 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 74 transitions. [2024-11-09 00:17:53,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 00:17:53,071 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:17:53,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:17:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:17:53,971 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 00:17:54,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:17:54,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 55 states and 83 transitions. [2024-11-09 00:17:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 83 transitions. [2024-11-09 00:17:54,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 00:17:54,687 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:17:54,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:17:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:17:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 00:17:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:17:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 32 states and 40 transitions. [2024-11-09 00:17:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2024-11-09 00:17:55,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 00:17:55,165 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2024-11-09 00:17:55,176 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-09 00:17:55,271 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-09 00:17:55,272 INFO L77 FloydHoareUtils]: At program point L50(line 50) the Hoare annotation is: true [2024-11-09 00:17:55,272 INFO L77 FloydHoareUtils]: At program point L50-1(line 50) the Hoare annotation is: true [2024-11-09 00:17:55,273 INFO L77 FloydHoareUtils]: At program point L47(line 47) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|)) [2024-11-09 00:17:55,273 INFO L77 FloydHoareUtils]: At program point L47-1(line 47) the Hoare annotation is: true [2024-11-09 00:17:55,273 INFO L77 FloydHoareUtils]: At program point L45(line 45) the Hoare annotation is: true [2024-11-09 00:17:55,274 INFO L77 FloydHoareUtils]: At program point L45-1(line 45) the Hoare annotation is: true [2024-11-09 00:17:55,276 INFO L77 FloydHoareUtils]: At program point L42(line 42) the Hoare annotation is: true [2024-11-09 00:17:55,276 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-09 00:17:55,276 INFO L77 FloydHoareUtils]: At program point L42-1(line 42) the Hoare annotation is: true [2024-11-09 00:17:55,276 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2024-11-09 00:17:55,277 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 7 9) the Hoare annotation is: true [2024-11-09 00:17:55,277 INFO L77 FloydHoareUtils]: At program point L29(line 29) the Hoare annotation is: true [2024-11-09 00:17:55,277 INFO L77 FloydHoareUtils]: At program point L26-2(lines 26 27) the Hoare annotation is: true [2024-11-09 00:17:55,277 INFO L77 FloydHoareUtils]: At program point L21(line 21) the Hoare annotation is: true [2024-11-09 00:17:55,277 INFO L77 FloydHoareUtils]: At program point L20(line 20) the Hoare annotation is: true [2024-11-09 00:17:55,278 INFO L77 FloydHoareUtils]: At program point L20-1(line 20) the Hoare annotation is: true [2024-11-09 00:17:55,278 INFO L77 FloydHoareUtils]: At program point checkEXIT(lines 16 38) the Hoare annotation is: true [2024-11-09 00:17:55,278 INFO L77 FloydHoareUtils]: At program point L17(line 17) the Hoare annotation is: true [2024-11-09 00:17:55,279 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 16 38) the Hoare annotation is: true [2024-11-09 00:17:55,279 INFO L77 FloydHoareUtils]: At program point checkFINAL(lines 16 38) the Hoare annotation is: true [2024-11-09 00:17:55,279 INFO L77 FloydHoareUtils]: At program point L35(line 35) the Hoare annotation is: true [2024-11-09 00:17:55,281 INFO L77 FloydHoareUtils]: At program point L35-1(line 35) the Hoare annotation is: true [2024-11-09 00:17:55,281 INFO L77 FloydHoareUtils]: At program point L11(line 11) the Hoare annotation is: true [2024-11-09 00:17:55,282 INFO L77 FloydHoareUtils]: At program point L11-1(line 11) the Hoare annotation is: true [2024-11-09 00:17:55,282 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 10 12) the Hoare annotation is: true [2024-11-09 00:17:55,282 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2024-11-09 00:17:55,283 INFO L77 FloydHoareUtils]: At program point L11-3(lines 10 12) the Hoare annotation is: true [2024-11-09 00:17:55,283 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) the Hoare annotation is: true [2024-11-09 00:17:55,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:17:55 ImpRootNode [2024-11-09 00:17:55,301 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:17:55,303 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:17:55,303 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:17:55,303 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:17:55,304 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:17:49" (3/4) ... [2024-11-09 00:17:55,306 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 00:17:55,310 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 00:17:55,310 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2024-11-09 00:17:55,311 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 00:17:55,316 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-11-09 00:17:55,317 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 00:17:55,318 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 00:17:55,318 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 00:17:55,457 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:17:55,458 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-09 00:17:55,458 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:17:55,459 INFO L158 Benchmark]: Toolchain (without parser) took 6656.95ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 115.4MB in the beginning and 152.7MB in the end (delta: -37.3MB). Peak memory consumption was 100.4MB. Max. memory is 16.1GB. [2024-11-09 00:17:55,459 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 121.6MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:17:55,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.49ms. Allocated memory is still 155.2MB. Free memory was 114.9MB in the beginning and 102.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 00:17:55,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.40ms. Allocated memory is still 155.2MB. Free memory was 102.3MB in the beginning and 100.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:17:55,460 INFO L158 Benchmark]: Boogie Preprocessor took 25.86ms. Allocated memory is still 155.2MB. Free memory was 100.7MB in the beginning and 99.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:17:55,460 INFO L158 Benchmark]: RCFGBuilder took 458.57ms. Allocated memory is still 155.2MB. Free memory was 99.1MB in the beginning and 124.6MB in the end (delta: -25.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2024-11-09 00:17:55,461 INFO L158 Benchmark]: CodeCheck took 5657.18ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 124.6MB in the beginning and 52.6MB in the end (delta: 72.0MB). Peak memory consumption was 102.4MB. Max. memory is 16.1GB. [2024-11-09 00:17:55,461 INFO L158 Benchmark]: Witness Printer took 155.32ms. Allocated memory is still 186.6MB. Free memory was 52.6MB in the beginning and 152.7MB in the end (delta: -100.1MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2024-11-09 00:17:55,467 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 4 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 322 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 185 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 613 IncrementalHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 185 mSolverCounterUnsat, 183 mSDtfsCounter, 613 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1332 GetRequests, 1259 SyntacticMatches, 15 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 779 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 66/87 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: 11]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 121.6MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.49ms. Allocated memory is still 155.2MB. Free memory was 114.9MB in the beginning and 102.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.40ms. Allocated memory is still 155.2MB. Free memory was 102.3MB in the beginning and 100.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.86ms. Allocated memory is still 155.2MB. Free memory was 100.7MB in the beginning and 99.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 458.57ms. Allocated memory is still 155.2MB. Free memory was 99.1MB in the beginning and 124.6MB in the end (delta: -25.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * CodeCheck took 5657.18ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 124.6MB in the beginning and 52.6MB in the end (delta: 72.0MB). Peak memory consumption was 102.4MB. Max. memory is 16.1GB. * Witness Printer took 155.32ms. Allocated memory is still 186.6MB. Free memory was 52.6MB in the beginning and 152.7MB in the end (delta: -100.1MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-09 00:17:55,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95b5b314-198a-4ee1-bcd6-8fc7ec20662f/bin/ukojak-verify-ImItNfHLgk/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