./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test21-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test21-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak --witnessprinter.witness.filename witness.graphml --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 34ee7183d8669d8a5837b9fc7867e46ccee92ce8 .......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:18:48,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:18:48,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:18:48,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:18:48,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:18:48,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:18:48,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:18:48,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:18:48,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:18:48,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:18:48,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:18:48,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:18:48,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:18:48,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:18:48,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:18:48,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:18:48,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:18:48,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:18:48,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:18:48,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:18:48,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:18:48,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:18:48,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:18:48,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:18:48,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:18:48,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:18:48,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:18:48,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:18:48,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:18:48,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:18:48,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:18:48,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:18:48,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:18:48,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:18:48,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:18:48,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:18:48,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:18:48,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:18:48,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:18:48,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:18:48,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:18:48,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:18:48,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:18:48,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:18:48,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:18:48,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:18:48,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:18:48,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:18:48,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:18:48,713 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:18:48,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:18:48,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:18:48,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:18:48,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:18:48,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:18:48,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:18:48,715 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:18:48,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:18:48,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:18:48,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:18:48,716 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:18:48,716 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:18:48,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:18:48,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:18:48,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:18:48,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:18:48,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:18:48,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:18:48,718 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:18:48,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:18:48,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:18:48,719 INFO L138 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-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34ee7183d8669d8a5837b9fc7867e46ccee92ce8 [2020-12-01 18:18:49,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:18:49,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:18:49,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:18:49,108 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:18:49,109 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:18:49,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test21-2.c [2020-12-01 18:18:49,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/data/a8df30f36/4dc6ad7fc1c44974897c7a0a9c171c24/FLAG7e8b394b8 [2020-12-01 18:18:49,639 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:18:49,639 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/sv-benchmarks/c/ldv-regression/test21-2.c [2020-12-01 18:18:49,646 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/data/a8df30f36/4dc6ad7fc1c44974897c7a0a9c171c24/FLAG7e8b394b8 [2020-12-01 18:18:50,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/data/a8df30f36/4dc6ad7fc1c44974897c7a0a9c171c24 [2020-12-01 18:18:50,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:18:50,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:18:50,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:18:50,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:18:50,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:18:50,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f9a038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50, skipping insertion in model container [2020-12-01 18:18:50,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:18:50,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:18:50,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:18:50,271 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:18:50,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:18:50,306 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:18:50,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50 WrapperNode [2020-12-01 18:18:50,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:18:50,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:18:50,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:18:50,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:18:50,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:18:50,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:18:50,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:18:50,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:18:50,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:18:50,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:18:50,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:18:50,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:18:50,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:18:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:18:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:18:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:18:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:18:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-12-01 18:18:50,509 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-12-01 18:18:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:18:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:18:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:18:50,933 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:18:50,933 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 18:18:50,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:18:50 BoogieIcfgContainer [2020-12-01 18:18:50,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:18:50,937 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:18:50,937 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:18:50,949 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:18:50,950 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:18:50" (1/1) ... [2020-12-01 18:18:50,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:18:50,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:18:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-01 18:18:51,004 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-01 18:18:51,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:18:51,009 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:18:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:18:51,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:18:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:18:51,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:18:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:18:51,548 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:18:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:18:51,588 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:18:51,672 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-12-01 18:18:51,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:18:51 ImpRootNode [2020-12-01 18:18:51,709 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:18:51,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:18:51,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:18:51,710 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:18:51,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:18:50" (3/4) ... [2020-12-01 18:18:51,713 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:18:51,763 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec377a65-04e7-4b99-bc9e-f0dd4179a76d/bin/ukojak/witness.graphml [2020-12-01 18:18:51,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:18:51,766 INFO L168 Benchmark]: Toolchain (without parser) took 1733.67 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.9 MB in the beginning and 59.5 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:51,767 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 67.3 MB in the beginning and 67.3 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:18:51,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.72 ms. Allocated memory is still 88.1 MB. Free memory was 50.8 MB in the beginning and 63.6 MB in the end (delta: -12.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:51,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.76 ms. Allocated memory is still 88.1 MB. Free memory was 63.6 MB in the beginning and 62.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:51,769 INFO L168 Benchmark]: Boogie Preprocessor took 55.82 ms. Allocated memory is still 88.1 MB. Free memory was 62.0 MB in the beginning and 60.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:18:51,770 INFO L168 Benchmark]: RCFGBuilder took 519.86 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 60.8 MB in the beginning and 84.7 MB in the end (delta: -23.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:51,771 INFO L168 Benchmark]: CodeCheck took 772.41 ms. Allocated memory is still 107.0 MB. Free memory was 84.2 MB in the beginning and 61.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:51,772 INFO L168 Benchmark]: Witness Printer took 53.34 ms. Allocated memory is still 107.0 MB. Free memory was 61.6 MB in the beginning and 59.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:18:51,777 INFO L339 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. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] struct dummy d1, d2; [L15] d1.a = __VERIFIER_nondet_int() [L16] d1.b = __VERIFIER_nondet_int() [L18] d2.a = __VERIFIER_nondet_int() [L19] d2.b = __VERIFIER_nondet_int() [L35] CALL, EXPR get_dummy() VAL [d1={844:0}, d2={846:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={844:0}, d2={846:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={844:0}, d2={846:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={844:0}, d2={846:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L36] COND TRUE pd1 != 0 && pd1 == pd2 [L29] EXPR s1->a [L29] EXPR s2->b [L29] return s1->a == s2->b; [L37] COND TRUE !check(pd1, pd2) [L3] __assert_fail("0", "test21-2.c", 3, "reach_error") VAL [d1={844:0}, d2={846:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 67.3 MB in the beginning and 67.3 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.72 ms. Allocated memory is still 88.1 MB. Free memory was 50.8 MB in the beginning and 63.6 MB in the end (delta: -12.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.76 ms. Allocated memory is still 88.1 MB. Free memory was 63.6 MB in the beginning and 62.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.82 ms. Allocated memory is still 88.1 MB. Free memory was 62.0 MB in the beginning and 60.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 519.86 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 60.8 MB in the beginning and 84.7 MB in the end (delta: -23.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * CodeCheck took 772.41 ms. Allocated memory is still 107.0 MB. Free memory was 84.2 MB in the beginning and 61.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 53.34 ms. Allocated memory is still 107.0 MB. Free memory was 61.6 MB in the beginning and 59.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...