./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-bwb/xor-01-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-bwb/xor-01-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2c513ce74590e6cb0704f3ffcd99d381485eec77314e047b28e9d8c5ce60c589 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:04:13,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:04:14,003 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:04:14,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:04:14,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:04:14,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:04:14,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:04:14,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:04:14,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:04:14,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:04:14,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:04:14,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:04:14,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:04:14,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:04:14,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:04:14,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:04:14,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:04:14,063 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:04:14,064 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:04:14,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:04:14,065 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:04:14,066 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:04:14,066 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:04:14,067 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:04:14,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:04:14,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:04:14,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:04:14,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:04:14,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:04:14,069 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:04:14,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:04:14,071 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:04:14,071 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_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c513ce74590e6cb0704f3ffcd99d381485eec77314e047b28e9d8c5ce60c589 [2023-11-23 20:04:14,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:04:14,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:04:14,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:04:14,393 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:04:14,394 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:04:14,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/termination-bwb/xor-01-false.c [2023-11-23 20:04:17,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:04:17,801 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:04:17,802 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/sv-benchmarks/c/termination-bwb/xor-01-false.c [2023-11-23 20:04:17,810 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/data/a589f3484/61646603bdde448c9771b3cd1641216c/FLAG7c068cce4 [2023-11-23 20:04:17,827 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/data/a589f3484/61646603bdde448c9771b3cd1641216c [2023-11-23 20:04:17,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:04:17,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:04:17,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:04:17,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:04:17,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:04:17,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:04:17" (1/1) ... [2023-11-23 20:04:17,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a8ce67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:17, skipping insertion in model container [2023-11-23 20:04:17,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:04:17" (1/1) ... [2023-11-23 20:04:17,861 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:04:18,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:04:18,046 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:04:18,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:04:18,080 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:04:18,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18 WrapperNode [2023-11-23 20:04:18,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:04:18,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:04:18,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:04:18,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:04:18,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,113 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-11-23 20:04:18,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:04:18,114 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:04:18,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:04:18,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:04:18,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,135 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:04:18,142 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:04:18,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:04:18,142 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:04:18,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:04:18,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:04:18,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:04:18,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:04:18,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:04:18,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:04:18,281 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:04:18,284 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:04:18,381 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:04:18,411 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:04:18,411 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:04:18,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:18 BoogieIcfgContainer [2023-11-23 20:04:18,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:04:18,414 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:04:18,414 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:04:18,424 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:04:18,424 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:18" (1/1) ... [2023-11-23 20:04:18,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:04:18,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:18,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-23 20:04:18,492 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-23 20:04:18,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:04:18,494 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:18,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:04:18,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2023-11-23 20:04:18,743 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-23 20:04:18,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:04:18,744 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:18,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:04:18,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:18,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-23 20:04:18,855 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-23 20:04:18,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 20:04:18,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:18,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:18,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:04:18,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:18,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-23 20:04:18,989 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-23 20:04:18,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 20:04:18,990 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:18,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:04:19,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:04:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:04:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:04:19,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:04:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:04:19,054 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-11-23 20:04:19,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:04:19 ImpRootNode [2023-11-23 20:04:19,076 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:04:19,077 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:04:19,077 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:04:19,077 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:04:19,078 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:18" (3/4) ... [2023-11-23 20:04:19,079 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:04:19,117 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:04:19,117 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:04:19,118 INFO L158 Benchmark]: Toolchain (without parser) took 1286.43ms. Allocated memory was 125.8MB in the beginning and 176.2MB in the end (delta: 50.3MB). Free memory was 81.6MB in the beginning and 130.4MB in the end (delta: -48.7MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2023-11-23 20:04:19,118 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 125.8MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:04:19,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.80ms. Allocated memory is still 125.8MB. Free memory was 81.2MB in the beginning and 72.0MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:04:19,120 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.03ms. Allocated memory is still 125.8MB. Free memory was 72.0MB in the beginning and 70.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:04:19,120 INFO L158 Benchmark]: Boogie Preprocessor took 26.10ms. Allocated memory is still 125.8MB. Free memory was 70.7MB in the beginning and 69.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:04:19,121 INFO L158 Benchmark]: RCFGBuilder took 271.66ms. Allocated memory is still 125.8MB. Free memory was 69.5MB in the beginning and 59.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:04:19,122 INFO L158 Benchmark]: CodeCheck took 662.32ms. Allocated memory was 125.8MB in the beginning and 176.2MB in the end (delta: 50.3MB). Free memory was 59.9MB in the beginning and 132.4MB in the end (delta: -72.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:04:19,123 INFO L158 Benchmark]: Witness Printer took 40.15ms. Allocated memory is still 176.2MB. Free memory was 132.4MB in the beginning and 130.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:04:19,126 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, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 21 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int a, b, x; [L14] a = __VERIFIER_nondet_int() [L15] x = __VERIFIER_nondet_int() [L16] b = 0 VAL [a=0, b=0, x=2147483647] [L17] COND TRUE x>0 VAL [a=0, b=0, x=2147483647] [L18] COND TRUE a >= 0 [L20] a = 0^1 VAL [a=1, b=0, x=2147483647] [L21] x+a VAL [a=1, b=0, x=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 125.8MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.80ms. Allocated memory is still 125.8MB. Free memory was 81.2MB in the beginning and 72.0MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.03ms. Allocated memory is still 125.8MB. Free memory was 72.0MB in the beginning and 70.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.10ms. Allocated memory is still 125.8MB. Free memory was 70.7MB in the beginning and 69.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 271.66ms. Allocated memory is still 125.8MB. Free memory was 69.5MB in the beginning and 59.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 662.32ms. Allocated memory was 125.8MB in the beginning and 176.2MB in the end (delta: 50.3MB). Free memory was 59.9MB in the beginning and 132.4MB in the end (delta: -72.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.15ms. Allocated memory is still 176.2MB. Free memory was 132.4MB in the beginning and 130.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 20:04:19,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b856176c-d229-40f6-832b-6807fc4e37c0/bin/ukojak-verify-1t5iHCbJaC/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)