./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s1iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/s1iff.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/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 f327e5a5b021f775646fced96474c3f2382bd51e .......................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 10:49:19,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:49:19,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:49:19,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:49:19,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:49:19,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:49:19,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:49:19,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:49:19,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:49:19,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:49:19,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:49:19,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:49:19,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:49:19,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:49:19,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:49:19,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:49:19,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:49:19,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:49:19,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:49:19,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:49:19,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:49:19,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:49:19,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:49:19,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:49:19,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:49:19,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:49:19,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:49:19,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:49:19,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:49:19,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:49:19,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:49:19,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:49:19,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:49:19,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:49:19,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:49:19,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:49:19,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:49:19,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:49:19,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:49:19,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:49:19,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:49:19,982 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 10:49:20,006 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:49:20,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:49:20,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 10:49:20,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 10:49:20,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:49:20,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:49:20,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:49:20,018 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:49:20,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:49:20,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:49:20,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:49:20,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:49:20,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:49:20,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:49:20,019 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:49:20,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:49:20,019 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:49:20,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:49:20,020 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 10:49:20,020 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 10:49:20,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:49:20,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:49:20,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 10:49:20,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:49:20,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:49:20,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:49:20,021 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 10:49:20,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:49:20,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:49:20,022 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_b0b692de-641e-4eb6-b79b-a10547206555/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 -> f327e5a5b021f775646fced96474c3f2382bd51e [2019-11-20 10:49:20,181 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:49:20,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:49:20,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:49:20,200 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:49:20,201 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:49:20,201 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/bin/ukojak/../../sv-benchmarks/c/array-fpi/s1iff.c [2019-11-20 10:49:20,271 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/bin/ukojak/data/635ef0f6e/53468591f0c7474abecbaeeef0f5ffe3/FLAGa7c5ae196 [2019-11-20 10:49:20,651 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:49:20,652 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/sv-benchmarks/c/array-fpi/s1iff.c [2019-11-20 10:49:20,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/bin/ukojak/data/635ef0f6e/53468591f0c7474abecbaeeef0f5ffe3/FLAGa7c5ae196 [2019-11-20 10:49:20,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/bin/ukojak/data/635ef0f6e/53468591f0c7474abecbaeeef0f5ffe3 [2019-11-20 10:49:20,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:49:20,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:49:20,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:49:20,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:49:20,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:49:20,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:20" (1/1) ... [2019-11-20 10:49:20,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bef335b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:20, skipping insertion in model container [2019-11-20 10:49:20,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:20" (1/1) ... [2019-11-20 10:49:20,690 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:49:20,708 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:49:20,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:49:20,987 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:49:21,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:49:21,034 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:49:21,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:21 WrapperNode [2019-11-20 10:49:21,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:49:21,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:49:21,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:49:21,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:49:21,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:21" (1/1) ... [2019-11-20 10:49:21,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:21" (1/1) ... [2019-11-20 10:49:21,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:49:21,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:49:21,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:49:21,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:49:21,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:21" (1/1) ... [2019-11-20 10:49:21,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:21" (1/1) ... [2019-11-20 10:49:21,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:21" (1/1) ... [2019-11-20 10:49:21,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:21" (1/1) ... [2019-11-20 10:49:21,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:21" (1/1) ... [2019-11-20 10:49:21,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:21" (1/1) ... [2019-11-20 10:49:21,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:21" (1/1) ... [2019-11-20 10:49:21,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:49:21,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:49:21,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:49:21,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:49:21,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/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 [2019-11-20 10:49:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:49:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:49:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 10:49:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:49:21,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:49:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:49:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:49:21,451 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:49:21,451 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 10:49:21,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:21 BoogieIcfgContainer [2019-11-20 10:49:21,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:49:21,453 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 10:49:21,453 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 10:49:21,462 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 10:49:21,463 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:21" (1/1) ... [2019-11-20 10:49:21,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:49:21,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:49:21,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2019-11-20 10:49:21,502 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2019-11-20 10:49:21,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 10:49:21,505 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:49:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:49:21,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:49:21,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:49:21,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2019-11-20 10:49:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2019-11-20 10:49:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 10:49:21,701 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:49:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:49:21,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 10:49:21,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:49:21,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2019-11-20 10:49:21,828 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2019-11-20 10:49:21,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 10:49:21,829 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:49:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:49:21,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-20 10:49:21,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:49:21,926 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 10:49:21,927 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:49:21,948 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:49:21,960 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-20 10:49:21,960 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 10:49:21,975 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:49:21,975 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:49:21,976 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2019-11-20 10:49:22,013 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2019-11-20 10:49:22,014 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:49:22,028 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:49:22,029 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:49:22,029 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2019-11-20 10:49:22,100 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:49:22,117 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2019-11-20 10:49:22,118 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:49:22,136 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:49:22,137 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 10:49:22,137 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:46, output treesize:31 [2019-11-20 10:49:22,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:49:22,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:49:23,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:49:23,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 17 states and 32 transitions. [2019-11-20 10:49:23,015 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 32 transitions. [2019-11-20 10:49:23,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 10:49:23,016 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:49:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:49:23,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 10:49:23,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:49:23,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:49:24,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:49:24,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 20 states and 39 transitions. [2019-11-20 10:49:24,117 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 39 transitions. [2019-11-20 10:49:24,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 10:49:24,117 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:49:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:49:24,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 10:49:24,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:49:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:49:24,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:49:24,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 21 states and 39 transitions. [2019-11-20 10:49:24,555 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 39 transitions. [2019-11-20 10:49:24,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 10:49:24,556 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:49:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:49:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:49:24,619 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2019-11-20 10:49:24,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 10:49:24 ImpRootNode [2019-11-20 10:49:24,649 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 10:49:24,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:49:24,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:49:24,650 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:49:24,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:21" (3/4) ... [2019-11-20 10:49:24,652 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 10:49:24,702 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b0b692de-641e-4eb6-b79b-a10547206555/bin/ukojak/witness.graphml [2019-11-20 10:49:24,702 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:49:24,704 INFO L168 Benchmark]: Toolchain (without parser) took 4031.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 943.3 MB in the beginning and 971.4 MB in the end (delta: -28.1 MB). Peak memory consumption was 120.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:49:24,704 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:49:24,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -199.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:49:24,706 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:49:24,706 INFO L168 Benchmark]: Boogie Preprocessor took 27.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:49:24,707 INFO L168 Benchmark]: RCFGBuilder took 359.59 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:49:24,707 INFO L168 Benchmark]: CodeCheck took 3196.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 978.3 MB in the end (delta: 135.8 MB). Peak memory consumption was 135.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:49:24,708 INFO L168 Benchmark]: Witness Printer took 52.73 ms. Allocated memory is still 1.2 GB. Free memory was 978.3 MB in the beginning and 971.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:49:24,711 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, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 128 SDtfs, 60 SDslu, 0 SDs, 0 SdLazy, 756 SolverSat, 328 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 386 GetRequests, 316 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1833 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 34 ConstructedInterpolants, 1 QuantifiedInterpolants, 1356 SizeOfPredicates, 17 NumberOfNonLiveVariables, 170 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 5/11 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 sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L26] sum[0] = 1 [L27] i=0 VAL [N=2] [L27] COND TRUE i