./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn1f.c --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_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn1f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/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 8d91257773214a4dabdd84060376021903a7c216 ................................................................................................................................................................................................................................................. 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 [2019-12-02 00:23:07,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-02 00:23:07,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-02 00:23:07,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-02 00:23:07,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-02 00:23:07,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-02 00:23:07,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-02 00:23:07,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-02 00:23:07,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-02 00:23:07,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-02 00:23:07,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-02 00:23:07,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-02 00:23:07,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-02 00:23:07,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-02 00:23:07,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-02 00:23:07,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-02 00:23:07,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-02 00:23:07,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-02 00:23:07,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-02 00:23:07,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-02 00:23:07,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-02 00:23:07,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-02 00:23:07,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-02 00:23:07,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-02 00:23:07,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-02 00:23:07,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-02 00:23:07,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-02 00:23:07,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-02 00:23:07,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-02 00:23:07,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-02 00:23:07,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-02 00:23:07,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-02 00:23:07,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-02 00:23:07,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-02 00:23:07,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-02 00:23:07,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-02 00:23:07,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-02 00:23:07,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-02 00:23:07,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-02 00:23:07,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-02 00:23:07,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-02 00:23:07,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-02 00:23:07,443 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-02 00:23:07,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-02 00:23:07,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-02 00:23:07,444 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-02 00:23:07,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-02 00:23:07,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-02 00:23:07,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-02 00:23:07,444 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-02 00:23:07,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-02 00:23:07,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-02 00:23:07,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-02 00:23:07,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-02 00:23:07,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-02 00:23:07,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-02 00:23:07,445 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-02 00:23:07,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-02 00:23:07,446 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-02 00:23:07,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-02 00:23:07,446 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-02 00:23:07,446 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-02 00:23:07,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-02 00:23:07,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-02 00:23:07,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-02 00:23:07,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-02 00:23:07,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-02 00:23:07,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-02 00:23:07,447 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-02 00:23:07,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-02 00:23:07,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-02 00:23:07,447 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_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/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 -> 8d91257773214a4dabdd84060376021903a7c216 [2019-12-02 00:23:07,548 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-02 00:23:07,556 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-02 00:23:07,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-02 00:23:07,560 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-02 00:23:07,561 INFO L275 PluginConnector]: CDTParser initialized [2019-12-02 00:23:07,561 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/bin/ukojak/../../sv-benchmarks/c/array-fpi/ifeqn1f.c [2019-12-02 00:23:07,599 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/bin/ukojak/data/eb2bc1bbc/3466d471996c43d3b5a668766c13262d/FLAGaf326a599 [2019-12-02 00:23:07,968 INFO L306 CDTParser]: Found 1 translation units. [2019-12-02 00:23:07,969 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/sv-benchmarks/c/array-fpi/ifeqn1f.c [2019-12-02 00:23:07,972 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/bin/ukojak/data/eb2bc1bbc/3466d471996c43d3b5a668766c13262d/FLAGaf326a599 [2019-12-02 00:23:08,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/bin/ukojak/data/eb2bc1bbc/3466d471996c43d3b5a668766c13262d [2019-12-02 00:23:08,389 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-02 00:23:08,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-02 00:23:08,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-02 00:23:08,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-02 00:23:08,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-02 00:23:08,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff5633e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08, skipping insertion in model container [2019-12-02 00:23:08,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-02 00:23:08,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-02 00:23:08,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 00:23:08,520 INFO L203 MainTranslator]: Completed pre-run [2019-12-02 00:23:08,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 00:23:08,584 INFO L208 MainTranslator]: Completed translation [2019-12-02 00:23:08,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08 WrapperNode [2019-12-02 00:23:08,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-02 00:23:08,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-02 00:23:08,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-02 00:23:08,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-02 00:23:08,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-02 00:23:08,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-02 00:23:08,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-02 00:23:08,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-02 00:23:08,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-02 00:23:08,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-02 00:23:08,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-02 00:23:08,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-02 00:23:08,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/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 [2019-12-02 00:23:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-02 00:23:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-02 00:23:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-02 00:23:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-02 00:23:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-02 00:23:08,919 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-02 00:23:08,919 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-02 00:23:08,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:23:08 BoogieIcfgContainer [2019-12-02 00:23:08,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-02 00:23:08,920 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-02 00:23:08,920 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-02 00:23:08,927 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-02 00:23:08,927 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:23:08" (1/1) ... [2019-12-02 00:23:08,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-02 00:23:08,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:23:08,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2019-12-02 00:23:08,956 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2019-12-02 00:23:08,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-02 00:23:08,957 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:23:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:23:09,045 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-02 00:23:09,049 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-02 00:23:09,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:23:09,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:23:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2019-12-02 00:23:09,103 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2019-12-02 00:23:09,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-02 00:23:09,104 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:23:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:23:09,128 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-02 00:23:09,128 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-02 00:23:09,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-02 00:23:09,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:23:09,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2019-12-02 00:23:09,183 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2019-12-02 00:23:09,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-02 00:23:09,183 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:23:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-02 00:23:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-02 00:23:09,231 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2019-12-02 00:23:09,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 12:23:09 ImpRootNode [2019-12-02 00:23:09,252 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-02 00:23:09,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-02 00:23:09,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-02 00:23:09,252 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-02 00:23:09,252 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:23:08" (3/4) ... [2019-12-02 00:23:09,254 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-02 00:23:09,285 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0c2b5614-ded1-4936-ae93-c5c8d3fe181f/bin/ukojak/witness.graphml [2019-12-02 00:23:09,285 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-02 00:23:09,286 INFO L168 Benchmark]: Toolchain (without parser) took 895.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -80.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2019-12-02 00:23:09,287 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 00:23:09,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -147.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-02 00:23:09,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 00:23:09,288 INFO L168 Benchmark]: Boogie Preprocessor took 17.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-02 00:23:09,288 INFO L168 Benchmark]: RCFGBuilder took 291.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-12-02 00:23:09,289 INFO L168 Benchmark]: CodeCheck took 331.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2019-12-02 00:23:09,289 INFO L168 Benchmark]: Witness Printer took 33.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 00:23:09,291 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, 11 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 32 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 2 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 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: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long *a = malloc(sizeof(long long)*N); [L24] long long *b = malloc(sizeof(long long)*N); [L26] i=0 VAL [N=1] [L26] COND TRUE i