./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/sum_2x3-1.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_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/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_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_2x3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/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_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/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 b2c85aee86c4b142223e11d6ae03fc30f95f303d54efdd7315c1aab75b140c6a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:35:52,402 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:35:52,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:35:52,503 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:35:52,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:35:52,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:35:52,528 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:35:52,528 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:35:52,529 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:35:52,529 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:35:52,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:35:52,530 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:35:52,531 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:35:52,531 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:35:52,531 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:35:52,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:35:52,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:35:52,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:35:52,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:35:52,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:35:52,534 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:35:52,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:35:52,535 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:35:52,535 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:35:52,535 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:35:52,536 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:35:52,536 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:35:52,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:35:52,537 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:35:52,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:35:52,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:35:52,538 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:35:52,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:35:52,539 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_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2c85aee86c4b142223e11d6ae03fc30f95f303d54efdd7315c1aab75b140c6a [2024-11-09 00:35:53,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:35:53,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:35:53,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:35:53,052 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:35:53,053 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:35:53,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/recursive-simple/sum_2x3-1.c Unable to find full path for "g++" [2024-11-09 00:35:55,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:35:55,358 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:35:55,359 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/sv-benchmarks/c/recursive-simple/sum_2x3-1.c [2024-11-09 00:35:55,365 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk/data/7dfc3c588/ab71f46c971c44cdab5e46338bca1131/FLAGd442375df [2024-11-09 00:35:55,380 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk/data/7dfc3c588/ab71f46c971c44cdab5e46338bca1131 [2024-11-09 00:35:55,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:35:55,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:35:55,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:35:55,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:35:55,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:35:55,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d44c6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55, skipping insertion in model container [2024-11-09 00:35:55,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,421 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:35:55,599 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_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/sv-benchmarks/c/recursive-simple/sum_2x3-1.c[479,492] [2024-11-09 00:35:55,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:35:55,612 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:35:55,624 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_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/sv-benchmarks/c/recursive-simple/sum_2x3-1.c[479,492] [2024-11-09 00:35:55,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:35:55,640 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:35:55,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55 WrapperNode [2024-11-09 00:35:55,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:35:55,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:35:55,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:35:55,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:35:55,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,669 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-11-09 00:35:55,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:35:55,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:35:55,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:35:55,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:35:55,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,680 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,683 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,684 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:35:55,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:35:55,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:35:55,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:35:55,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:35:55" (1/1) ... [2024-11-09 00:35:55,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:35:55,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:35:55,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:35:55,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:35:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:35:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:35:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:35:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2024-11-09 00:35:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2024-11-09 00:35:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:35:55,842 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:35:55,845 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:35:55,994 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 00:35:55,995 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:35:56,027 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:35:56,027 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:35:56,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:35:56 BoogieIcfgContainer [2024-11-09 00:35:56,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:35:56,029 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:35:56,029 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:35:56,043 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:35:56,043 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:35:56" (1/1) ... [2024-11-09 00:35:56,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:35:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:35:56,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-09 00:35:56,126 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-09 00:35:56,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:35:56,132 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:35:56,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:35:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:35:56,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:35:56,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:35:56,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 18 transitions. [2024-11-09 00:35:56,554 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:35:56,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 00:35:56,555 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:35:56,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:35:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:35:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:35:57,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:35:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 22 transitions. [2024-11-09 00:35:57,067 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-09 00:35:57,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 00:35:57,071 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:35:57,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:35:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:57,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:35:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:57,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:35:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:35:57,237 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-11-09 00:35:57,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:35:57 ImpRootNode [2024-11-09 00:35:57,279 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:35:57,280 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:35:57,280 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:35:57,281 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:35:57,281 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:35:56" (3/4) ... [2024-11-09 00:35:57,282 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:35:57,315 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:35:57,315 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:35:57,316 INFO L158 Benchmark]: Toolchain (without parser) took 1931.92ms. Allocated memory is still 134.2MB. Free memory was 100.3MB in the beginning and 85.5MB in the end (delta: 14.8MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2024-11-09 00:35:57,316 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:35:57,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.97ms. Allocated memory is still 134.2MB. Free memory was 99.8MB in the beginning and 88.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 00:35:57,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.37ms. Allocated memory is still 134.2MB. Free memory was 88.2MB in the beginning and 86.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:35:57,318 INFO L158 Benchmark]: Boogie Preprocessor took 17.73ms. Allocated memory is still 134.2MB. Free memory was 86.7MB in the beginning and 85.7MB in the end (delta: 987.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:35:57,319 INFO L158 Benchmark]: RCFGBuilder took 339.82ms. Allocated memory is still 134.2MB. Free memory was 85.7MB in the beginning and 75.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 00:35:57,319 INFO L158 Benchmark]: CodeCheck took 1250.65ms. Allocated memory is still 134.2MB. Free memory was 75.3MB in the beginning and 87.6MB in the end (delta: -12.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:35:57,319 INFO L158 Benchmark]: Witness Printer took 35.14ms. Allocated memory is still 134.2MB. Free memory was 87.6MB in the beginning and 85.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:35:57,322 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 26 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/4 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 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] int a = 2; [L15] int b = 3; VAL [a=2, b=3] [L16] CALL, EXPR sum(a, b) VAL [\old(m)=3, \old(n)=2] [L6] COND FALSE !(n <= 0) VAL [\old(m)=3, \old(n)=2, m=3, n=2] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=4, \old(n)=1] [L6] COND FALSE !(n <= 0) VAL [\old(m)=4, \old(n)=1, m=4, n=1] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=5, \old(n)=0] [L6] COND TRUE n <= 0 [L7] return m + n; VAL [\old(m)=5, \old(n)=0, \result=5] [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=4, \old(n)=1, m=4, n=1] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=3, \old(n)=2, m=3, n=2] [L9] return sum(n - 1, m + 1); [L16] RET, EXPR sum(a, b) VAL [a=2, b=3] [L16] int result = sum(a, b); [L17] COND TRUE result == a + b [L18] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.97ms. Allocated memory is still 134.2MB. Free memory was 99.8MB in the beginning and 88.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.37ms. Allocated memory is still 134.2MB. Free memory was 88.2MB in the beginning and 86.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.73ms. Allocated memory is still 134.2MB. Free memory was 86.7MB in the beginning and 85.7MB in the end (delta: 987.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 339.82ms. Allocated memory is still 134.2MB. Free memory was 85.7MB in the beginning and 75.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1250.65ms. Allocated memory is still 134.2MB. Free memory was 75.3MB in the beginning and 87.6MB in the end (delta: -12.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 35.14ms. Allocated memory is still 134.2MB. Free memory was 87.6MB in the beginning and 85.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:35:57,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871c06a1-0fae-4e5d-a908-0cd2a24f19c7/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE