./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/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_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/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_99dc2acb-c713-45f7-b469-f7175156daa2/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 563b7b68cc9c71f6c32d6693c1b275445975396b9300286e8e67b320f2f5679b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:59:05,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:59:05,619 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:59:05,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:59:05,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:59:05,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:59:05,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:59:05,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:59:05,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:59:05,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:59:05,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:59:05,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:59:05,664 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:59:05,664 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:59:05,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:59:05,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:59:05,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:59:05,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:59:05,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:59:05,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:59:05,667 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:59:05,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:59:05,672 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:59:05,672 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:59:05,674 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:59:05,674 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:59:05,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:59:05,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:59:05,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:59:05,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:59:05,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:59:05,678 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:59:05,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:59:05,678 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_99dc2acb-c713-45f7-b469-f7175156daa2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 563b7b68cc9c71f6c32d6693c1b275445975396b9300286e8e67b320f2f5679b [2024-11-09 00:59:05,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:59:06,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:59:06,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:59:06,012 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:59:06,013 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:59:06,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c Unable to find full path for "g++" [2024-11-09 00:59:07,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:59:08,168 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:59:08,168 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2024-11-09 00:59:08,176 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk/data/8e56b4818/781f5287a7fc44a9b52ee3db13c64c66/FLAGb5dbc77c8 [2024-11-09 00:59:08,190 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk/data/8e56b4818/781f5287a7fc44a9b52ee3db13c64c66 [2024-11-09 00:59:08,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:59:08,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:59:08,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:59:08,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:59:08,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:59:08,202 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4f5001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08, skipping insertion in model container [2024-11-09 00:59:08,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,222 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:59:08,486 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_99dc2acb-c713-45f7-b469-f7175156daa2/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[860,873] [2024-11-09 00:59:08,491 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_99dc2acb-c713-45f7-b469-f7175156daa2/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[916,929] [2024-11-09 00:59:08,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:59:08,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:59:08,520 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_99dc2acb-c713-45f7-b469-f7175156daa2/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[860,873] [2024-11-09 00:59:08,524 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_99dc2acb-c713-45f7-b469-f7175156daa2/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[916,929] [2024-11-09 00:59:08,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:59:08,549 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:59:08,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08 WrapperNode [2024-11-09 00:59:08,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:59:08,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:59:08,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:59:08,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:59:08,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,584 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2024-11-09 00:59:08,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:59:08,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:59:08,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:59:08,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:59:08,595 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:59:08,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:59:08,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:59:08,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:59:08,620 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:59:08,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:59:08,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:59:08,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:59:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:59:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:59:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:59:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:59:08,745 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:59:08,747 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:59:08,870 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-09 00:59:08,870 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:59:08,892 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:59:08,894 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:59:08,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:59:08 BoogieIcfgContainer [2024-11-09 00:59:08,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:59:08,897 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:59:08,900 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:59:08,911 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:59:08,911 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:59:08" (1/1) ... [2024-11-09 00:59:08,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:59:08,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:59:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2024-11-09 00:59:08,973 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2024-11-09 00:59:08,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 00:59:08,975 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:59:08,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:59:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:59:09,302 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 00:59:09,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:59:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2024-11-09 00:59:09,361 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2024-11-09 00:59:09,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:59:09,362 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:59:09,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:59:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:59:09,440 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 00:59:09,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:59:09,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2024-11-09 00:59:09,490 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2024-11-09 00:59:09,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:59:09,491 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:59:09,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:59:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:59:09,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:59:10,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:59:10,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2024-11-09 00:59:10,142 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2024-11-09 00:59:10,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:59:10,142 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:59:10,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:59:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:59:10,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 00:59:10,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:59:10,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2024-11-09 00:59:10,176 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-11-09 00:59:10,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:59:10,176 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:59:10,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:59:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:59:10,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:59:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:59:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:59:10,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:59:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:59:10,301 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2024-11-09 00:59:10,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:59:10 ImpRootNode [2024-11-09 00:59:10,326 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:59:10,326 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:59:10,326 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:59:10,327 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:59:10,327 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:59:08" (3/4) ... [2024-11-09 00:59:10,328 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:59:10,369 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:59:10,369 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:59:10,370 INFO L158 Benchmark]: Toolchain (without parser) took 2176.58ms. Allocated memory is still 163.6MB. Free memory was 128.4MB in the beginning and 57.2MB in the end (delta: 71.3MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2024-11-09 00:59:10,371 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:59:10,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.66ms. Allocated memory is still 163.6MB. Free memory was 128.4MB in the beginning and 127.9MB in the end (delta: 503.4kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 00:59:10,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.56ms. Allocated memory is still 163.6MB. Free memory was 127.9MB in the beginning and 126.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:59:10,373 INFO L158 Benchmark]: Boogie Preprocessor took 30.55ms. Allocated memory is still 163.6MB. Free memory was 126.4MB in the beginning and 125.4MB in the end (delta: 972.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:59:10,373 INFO L158 Benchmark]: RCFGBuilder took 279.35ms. Allocated memory is still 163.6MB. Free memory was 125.4MB in the beginning and 114.3MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 00:59:10,374 INFO L158 Benchmark]: CodeCheck took 1428.27ms. Allocated memory is still 163.6MB. Free memory was 114.3MB in the beginning and 58.8MB in the end (delta: 55.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2024-11-09 00:59:10,374 INFO L158 Benchmark]: Witness Printer took 43.30ms. Allocated memory is still 163.6MB. Free memory was 58.8MB in the beginning and 57.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:59:10,377 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, 12 locations, 2 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, 64 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 26 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1/2 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: 25]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] unsigned char n = __VERIFIER_nondet_uchar(); [L13] COND FALSE !(n == 0) [L16] unsigned char v = 0; [L17] unsigned char s = 0; [L18] unsigned int i = 0; VAL [i=0, n=2, s=0, v=0] [L19] COND FALSE !(i < n) VAL [i=0, n=2, s=0, v=0] [L19] COND TRUE i < n [L20] v = __VERIFIER_nondet_uchar() [L21] s += v [L22] ++i VAL [i=1, n=2, s=1, v=-255] [L19] COND FALSE !(i < n) VAL [i=1, n=2, s=1, v=-255] [L19] COND TRUE i < n [L20] v = __VERIFIER_nondet_uchar() [L21] s += v [L22] ++i VAL [i=2, n=2, s=256, v=255] [L19] COND TRUE i < n VAL [s=256, v=255] [L24] COND TRUE s < v [L25] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.66ms. Allocated memory is still 163.6MB. Free memory was 128.4MB in the beginning and 127.9MB in the end (delta: 503.4kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.56ms. Allocated memory is still 163.6MB. Free memory was 127.9MB in the beginning and 126.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.55ms. Allocated memory is still 163.6MB. Free memory was 126.4MB in the beginning and 125.4MB in the end (delta: 972.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.35ms. Allocated memory is still 163.6MB. Free memory was 125.4MB in the beginning and 114.3MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 1428.27ms. Allocated memory is still 163.6MB. Free memory was 114.3MB in the beginning and 58.8MB in the end (delta: 55.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Witness Printer took 43.30ms. Allocated memory is still 163.6MB. Free memory was 58.8MB in the beginning and 57.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:59:10,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99dc2acb-c713-45f7-b469-f7175156daa2/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