./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d1a973dcd7009ffcd2eda1338249f4d290fb62a ...................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-01 03:32:05,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 03:32:05,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 03:32:05,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 03:32:05,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 03:32:05,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 03:32:05,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 03:32:05,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 03:32:05,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 03:32:05,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 03:32:05,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 03:32:05,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 03:32:05,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 03:32:05,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 03:32:05,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 03:32:05,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 03:32:05,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 03:32:05,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 03:32:05,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 03:32:05,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 03:32:05,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 03:32:05,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 03:32:05,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 03:32:05,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 03:32:05,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 03:32:05,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 03:32:05,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 03:32:05,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 03:32:05,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 03:32:05,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 03:32:05,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 03:32:05,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 03:32:05,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 03:32:05,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 03:32:05,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 03:32:05,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 03:32:05,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 03:32:05,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 03:32:05,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 03:32:05,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 03:32:05,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 03:32:05,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-01 03:32:05,411 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 03:32:05,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 03:32:05,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 03:32:05,412 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 03:32:05,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 03:32:05,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 03:32:05,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 03:32:05,412 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 03:32:05,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 03:32:05,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 03:32:05,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 03:32:05,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 03:32:05,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 03:32:05,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 03:32:05,413 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 03:32:05,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 03:32:05,414 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 03:32:05,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 03:32:05,414 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 03:32:05,414 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 03:32:05,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 03:32:05,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 03:32:05,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 03:32:05,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 03:32:05,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 03:32:05,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 03:32:05,415 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 03:32:05,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 03:32:05,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 03:32:05,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/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(__VERIFIER_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 -> 3d1a973dcd7009ffcd2eda1338249f4d290fb62a [2019-12-01 03:32:05,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 03:32:05,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 03:32:05,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 03:32:05,527 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 03:32:05,527 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 03:32:05,528 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak/../../sv-benchmarks/c/forester-heap/dll-sorted-1.i [2019-12-01 03:32:05,572 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak/data/b22a261cc/56b7641c4d7e45b181a9a6ff3661b85e/FLAG1bcc931a3 [2019-12-01 03:32:05,988 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 03:32:05,988 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/sv-benchmarks/c/forester-heap/dll-sorted-1.i [2019-12-01 03:32:05,996 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak/data/b22a261cc/56b7641c4d7e45b181a9a6ff3661b85e/FLAG1bcc931a3 [2019-12-01 03:32:06,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak/data/b22a261cc/56b7641c4d7e45b181a9a6ff3661b85e [2019-12-01 03:32:06,368 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 03:32:06,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 03:32:06,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 03:32:06,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 03:32:06,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 03:32:06,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:32:06" (1/1) ... [2019-12-01 03:32:06,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@261f166e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06, skipping insertion in model container [2019-12-01 03:32:06,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:32:06" (1/1) ... [2019-12-01 03:32:06,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 03:32:06,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 03:32:06,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 03:32:06,647 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 03:32:06,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 03:32:06,711 INFO L208 MainTranslator]: Completed translation [2019-12-01 03:32:06,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06 WrapperNode [2019-12-01 03:32:06,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 03:32:06,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 03:32:06,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 03:32:06,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 03:32:06,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06" (1/1) ... [2019-12-01 03:32:06,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06" (1/1) ... [2019-12-01 03:32:06,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 03:32:06,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 03:32:06,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 03:32:06,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 03:32:06,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06" (1/1) ... [2019-12-01 03:32:06,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06" (1/1) ... [2019-12-01 03:32:06,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06" (1/1) ... [2019-12-01 03:32:06,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06" (1/1) ... [2019-12-01 03:32:06,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06" (1/1) ... [2019-12-01 03:32:06,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06" (1/1) ... [2019-12-01 03:32:06,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06" (1/1) ... [2019-12-01 03:32:06,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 03:32:06,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 03:32:06,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 03:32:06,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 03:32:06,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/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 [2019-12-01 03:32:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 03:32:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 03:32:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 03:32:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-01 03:32:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-01 03:32:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 03:32:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 03:32:06,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 03:32:07,295 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 03:32:07,295 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-01 03:32:07,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:32:07 BoogieIcfgContainer [2019-12-01 03:32:07,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 03:32:07,297 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 03:32:07,297 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 03:32:07,304 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 03:32:07,304 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:32:07" (1/1) ... [2019-12-01 03:32:07,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 03:32:07,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:32:07,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 44 states and 71 transitions. [2019-12-01 03:32:07,336 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2019-12-01 03:32:07,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 03:32:07,337 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:32:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:32:07,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:32:07,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:32:07,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 44 states and 67 transitions. [2019-12-01 03:32:07,438 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions. [2019-12-01 03:32:07,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 03:32:07,438 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:32:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:32:07,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:32:07,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:32:07,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 46 states and 70 transitions. [2019-12-01 03:32:07,514 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2019-12-01 03:32:07,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 03:32:07,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:32:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:32:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:32:07,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:32:07,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 68 transitions. [2019-12-01 03:32:07,728 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2019-12-01 03:32:07,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-01 03:32:07,728 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:32:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:32:07,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:32:07,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:32:07,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 44 states and 63 transitions. [2019-12-01 03:32:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2019-12-01 03:32:07,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-01 03:32:07,757 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:32:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 03:32:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 03:32:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 03:32:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 03:32:07,908 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2019-12-01 03:32:07,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 03:32:07 ImpRootNode [2019-12-01 03:32:07,932 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 03:32:07,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 03:32:07,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 03:32:07,932 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 03:32:07,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:32:07" (3/4) ... [2019-12-01 03:32:07,934 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 03:32:07,974 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4bb1e283-b268-4e6a-96d7-2df22e2e02cb/bin/ukojak/witness.graphml [2019-12-01 03:32:07,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 03:32:07,976 INFO L168 Benchmark]: Toolchain (without parser) took 1605.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 941.9 MB in the beginning and 975.1 MB in the end (delta: -33.1 MB). Peak memory consumption was 89.5 MB. Max. memory is 11.5 GB. [2019-12-01 03:32:07,976 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 03:32:07,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-12-01 03:32:07,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-01 03:32:07,978 INFO L168 Benchmark]: Boogie Preprocessor took 24.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-01 03:32:07,978 INFO L168 Benchmark]: RCFGBuilder took 525.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2019-12-01 03:32:07,979 INFO L168 Benchmark]: CodeCheck took 634.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 977.2 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 11.5 GB. [2019-12-01 03:32:07,980 INFO L168 Benchmark]: Witness Printer took 41.99 ms. Allocated memory is still 1.2 GB. Free memory was 977.2 MB in the beginning and 975.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-01 03:32:07,983 INFO L335 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, 44 locations, 6 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 40 SDslu, 48 SDs, 0 SdLazy, 152 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 241 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1027]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = ((void*)0) [L988] head->prev = ((void*)0) [L989] head->data = 0 [L991] SLL* x = head; [L992] int marked = 0; [L995] COND TRUE __VERIFIER_nondet_int() || !marked [L998] x->next = malloc(sizeof(SLL)) [L999] EXPR x->next [L999] x->next->prev = x [L1000] EXPR x->next [L1000] x = x->next [L1001] x->next = ((void*)0) [L1003] COND TRUE __VERIFIER_nondet_int() [L1005] marked = 1 [L1008] COND TRUE \read(marked) [L1009] x->data = 1 [L995] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1014] x = head [L1016] COND FALSE !(!(((void*)0) != x)) [L1017] marked = 0 [L1019] EXPR x->next [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] EXPR x->next [L1019] EXPR x->next->data [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1024] EXPR x->next [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1026] EXPR x->next [L1026] x = x->next [L1027] EXPR x->data [L1027] COND TRUE !(x->data != 1) [L1027] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 338.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 525.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. * CodeCheck took 634.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 977.2 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 11.5 GB. * Witness Printer took 41.99 ms. Allocated memory is still 1.2 GB. Free memory was 977.2 MB in the beginning and 975.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...