./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ms1f.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_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ms1f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/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 a43ea9f86945f5930cf8afc1c45b20021ea61388 ............................................................................................................................................................................................................................................. 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 21:47:52,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 21:47:52,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 21:47:52,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 21:47:52,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 21:47:52,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 21:47:52,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 21:47:52,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 21:47:52,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 21:47:52,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 21:47:52,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 21:47:52,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 21:47:52,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 21:47:52,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 21:47:52,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 21:47:52,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 21:47:52,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 21:47:52,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 21:47:52,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 21:47:52,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 21:47:52,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 21:47:52,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 21:47:52,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 21:47:52,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 21:47:52,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 21:47:52,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 21:47:52,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 21:47:52,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 21:47:52,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 21:47:52,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 21:47:52,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 21:47:52,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 21:47:52,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 21:47:52,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 21:47:52,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 21:47:52,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 21:47:52,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 21:47:52,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 21:47:52,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 21:47:52,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 21:47:52,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 21:47:52,782 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-01 21:47:52,794 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 21:47:52,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 21:47:52,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 21:47:52,795 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 21:47:52,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 21:47:52,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 21:47:52,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 21:47:52,796 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 21:47:52,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 21:47:52,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 21:47:52,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 21:47:52,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 21:47:52,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 21:47:52,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 21:47:52,798 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 21:47:52,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 21:47:52,798 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 21:47:52,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 21:47:52,799 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 21:47:52,799 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 21:47:52,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 21:47:52,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 21:47:52,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 21:47:52,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 21:47:52,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 21:47:52,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 21:47:52,800 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 21:47:52,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 21:47:52,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 21:47:52,801 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_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/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 -> a43ea9f86945f5930cf8afc1c45b20021ea61388 [2019-12-01 21:47:52,922 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 21:47:52,933 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 21:47:52,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 21:47:52,937 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 21:47:52,937 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 21:47:52,938 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/bin/ukojak/../../sv-benchmarks/c/array-fpi/ms1f.c [2019-12-01 21:47:52,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/bin/ukojak/data/d85cf3e1d/c21f65756dcc4d17af973720186d5709/FLAG00264cebd [2019-12-01 21:47:53,407 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 21:47:53,408 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/sv-benchmarks/c/array-fpi/ms1f.c [2019-12-01 21:47:53,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/bin/ukojak/data/d85cf3e1d/c21f65756dcc4d17af973720186d5709/FLAG00264cebd [2019-12-01 21:47:53,771 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/bin/ukojak/data/d85cf3e1d/c21f65756dcc4d17af973720186d5709 [2019-12-01 21:47:53,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 21:47:53,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 21:47:53,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 21:47:53,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 21:47:53,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 21:47:53,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 09:47:53" (1/1) ... [2019-12-01 21:47:53,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4e85b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53, skipping insertion in model container [2019-12-01 21:47:53,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 09:47:53" (1/1) ... [2019-12-01 21:47:53,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 21:47:53,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 21:47:53,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 21:47:53,911 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 21:47:53,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 21:47:53,965 INFO L208 MainTranslator]: Completed translation [2019-12-01 21:47:53,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53 WrapperNode [2019-12-01 21:47:53,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 21:47:53,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 21:47:53,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 21:47:53,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 21:47:53,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53" (1/1) ... [2019-12-01 21:47:53,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53" (1/1) ... [2019-12-01 21:47:53,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 21:47:53,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 21:47:53,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 21:47:53,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 21:47:53,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53" (1/1) ... [2019-12-01 21:47:53,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53" (1/1) ... [2019-12-01 21:47:53,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53" (1/1) ... [2019-12-01 21:47:53,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53" (1/1) ... [2019-12-01 21:47:54,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53" (1/1) ... [2019-12-01 21:47:54,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53" (1/1) ... [2019-12-01 21:47:54,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53" (1/1) ... [2019-12-01 21:47:54,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 21:47:54,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 21:47:54,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 21:47:54,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 21:47:54,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:47:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/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 21:47:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-01 21:47:54,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 21:47:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 21:47:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 21:47:54,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 21:47:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 21:47:54,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 21:47:54,219 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 21:47:54,219 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-01 21:47:54,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:47:54 BoogieIcfgContainer [2019-12-01 21:47:54,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 21:47:54,220 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 21:47:54,220 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 21:47:54,227 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 21:47:54,227 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:47:54" (1/1) ... [2019-12-01 21:47:54,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 21:47:54,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 21:47:54,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2019-12-01 21:47:54,257 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2019-12-01 21:47:54,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 21:47:54,259 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 21:47:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 21:47:54,364 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 21:47:54,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 21:47:54,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2019-12-01 21:47:54,388 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2019-12-01 21:47:54,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 21:47:54,389 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 21:47:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 21:47:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-01 21:47:54,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 21:47:54,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2019-12-01 21:47:54,468 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2019-12-01 21:47:54,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 21:47:54,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 21:47:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 21:47:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 21:47:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 21:47:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 21:47:54,551 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2019-12-01 21:47:54,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 09:47:54 ImpRootNode [2019-12-01 21:47:54,571 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 21:47:54,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 21:47:54,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 21:47:54,571 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 21:47:54,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:47:54" (3/4) ... [2019-12-01 21:47:54,573 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 21:47:54,603 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_28ab1b2c-0cf9-4649-9f3e-1e6634fbe877/bin/ukojak/witness.graphml [2019-12-01 21:47:54,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 21:47:54,604 INFO L168 Benchmark]: Toolchain (without parser) took 826.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 935.4 MB in the beginning and 1.0 GB in the end (delta: -75.0 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-12-01 21:47:54,605 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 954.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 21:47:54,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-01 21:47:54,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.46 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-01 21:47:54,606 INFO L168 Benchmark]: Boogie Preprocessor took 16.33 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-01 21:47:54,606 INFO L168 Benchmark]: RCFGBuilder took 214.19 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-01 21:47:54,607 INFO L168 Benchmark]: CodeCheck took 350.54 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: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. [2019-12-01 21:47:54,607 INFO L168 Benchmark]: Witness Printer took 32.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-01 21:47:54,610 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: 0.3s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 34 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 89 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 151 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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] int sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L26] i=0 VAL [N=1] [L26] COND TRUE i