./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/MultCommutative_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-numeric/MultCommutative_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a7af5709195f6c1eec73f2559f8e654af4840835 .................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 01:14:06,891 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:14:06,891 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:14:06,897 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:14:06,898 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:14:06,898 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:14:06,899 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:14:06,900 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:14:06,900 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:14:06,901 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:14:06,901 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:14:06,901 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:14:06,902 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:14:06,902 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:14:06,903 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:14:06,903 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:14:06,904 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:14:06,905 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:14:06,906 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:14:06,906 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:14:06,907 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:14:06,908 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:14:06,909 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:14:06,909 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:14:06,909 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:14:06,909 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:14:06,910 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:14:06,910 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:14:06,911 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:14:06,911 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:14:06,911 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:14:06,912 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:14:06,912 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:14:06,912 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:14:06,912 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:14:06,913 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:14:06,913 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-12-09 01:14:06,920 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:14:06,920 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:14:06,920 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:14:06,920 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 01:14:06,921 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 01:14:06,921 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 01:14:06,921 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:14:06,921 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 01:14:06,921 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:14:06,921 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:14:06,921 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:14:06,921 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:14:06,922 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:14:06,922 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 01:14:06,922 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:14:06,922 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 01:14:06,922 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:14:06,922 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 01:14:06,922 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 01:14:06,922 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:14:06,922 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:14:06,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 01:14:06,922 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:14:06,923 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:14:06,923 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:14:06,923 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 01:14:06,923 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:14:06,923 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:14:06,923 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7af5709195f6c1eec73f2559f8e654af4840835 [2018-12-09 01:14:06,939 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:14:06,946 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:14:06,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:14:06,949 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:14:06,949 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:14:06,949 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak/../../sv-benchmarks/c/termination-numeric/MultCommutative_false-no-overflow.c [2018-12-09 01:14:06,982 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak/data/86b386468/72297c86cea74dadaf45bbcc6614108c/FLAGe93514e94 [2018-12-09 01:14:07,413 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:14:07,414 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/sv-benchmarks/c/termination-numeric/MultCommutative_false-no-overflow.c [2018-12-09 01:14:07,417 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak/data/86b386468/72297c86cea74dadaf45bbcc6614108c/FLAGe93514e94 [2018-12-09 01:14:07,818 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak/data/86b386468/72297c86cea74dadaf45bbcc6614108c [2018-12-09 01:14:07,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:14:07,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:14:07,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:14:07,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:14:07,825 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:14:07,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:14:07" (1/1) ... [2018-12-09 01:14:07,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a86b9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07, skipping insertion in model container [2018-12-09 01:14:07,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:14:07" (1/1) ... [2018-12-09 01:14:07,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:14:07,841 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:14:07,923 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:14:07,925 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:14:07,934 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:14:07,942 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:14:07,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07 WrapperNode [2018-12-09 01:14:07,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:14:07,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:14:07,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:14:07,943 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:14:07,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07" (1/1) ... [2018-12-09 01:14:07,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07" (1/1) ... [2018-12-09 01:14:07,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:14:07,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:14:07,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:14:07,961 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:14:07,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07" (1/1) ... [2018-12-09 01:14:07,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07" (1/1) ... [2018-12-09 01:14:07,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07" (1/1) ... [2018-12-09 01:14:07,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07" (1/1) ... [2018-12-09 01:14:07,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07" (1/1) ... [2018-12-09 01:14:07,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07" (1/1) ... [2018-12-09 01:14:07,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07" (1/1) ... [2018-12-09 01:14:07,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:14:07,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:14:07,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:14:07,972 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:14:07,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:14:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/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 [2018-12-09 01:14:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2018-12-09 01:14:08,032 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2018-12-09 01:14:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:14:08,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:14:08,141 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:14:08,142 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 01:14:08,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:14:08 BoogieIcfgContainer [2018-12-09 01:14:08,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:14:08,142 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 01:14:08,142 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 01:14:08,152 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 01:14:08,152 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:14:08" (1/1) ... [2018-12-09 01:14:08,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:14:08,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:08,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2018-12-09 01:14:08,185 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2018-12-09 01:14:08,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 01:14:08,187 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:08,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:08,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:08,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 40 transitions. [2018-12-09 01:14:08,359 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2018-12-09 01:14:08,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 01:14:08,362 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:08,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:08,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 47 transitions. [2018-12-09 01:14:08,533 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2018-12-09 01:14:08,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 01:14:08,533 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:08,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:08,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 35 states and 46 transitions. [2018-12-09 01:14:08,558 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2018-12-09 01:14:08,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 01:14:08,559 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:08,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:08,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 38 states and 51 transitions. [2018-12-09 01:14:08,673 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2018-12-09 01:14:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 01:14:08,674 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:08,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:08,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 38 states and 49 transitions. [2018-12-09 01:14:08,846 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2018-12-09 01:14:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 01:14:08,847 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:08,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:08,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:08,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 38 states and 48 transitions. [2018-12-09 01:14:08,928 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-12-09 01:14:08,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 01:14:08,929 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 01:14:08,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:08,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 37 states and 47 transitions. [2018-12-09 01:14:08,949 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2018-12-09 01:14:08,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 01:14:08,950 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:08,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:09,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:09,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 37 states and 46 transitions. [2018-12-09 01:14:09,196 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2018-12-09 01:14:09,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 01:14:09,197 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:09,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:09,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:09,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 47 states and 69 transitions. [2018-12-09 01:14:09,666 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 69 transitions. [2018-12-09 01:14:09,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 01:14:09,667 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:09,713 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 01:14:09,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:09,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 47 states and 68 transitions. [2018-12-09 01:14:09,906 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2018-12-09 01:14:09,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 01:14:09,906 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:09,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:14:10,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 56 states and 84 transitions. [2018-12-09 01:14:10,653 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 84 transitions. [2018-12-09 01:14:10,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 01:14:10,654 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:10,669 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 01:14:10,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 41 states and 58 transitions. [2018-12-09 01:14:10,889 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2018-12-09 01:14:10,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 01:14:10,890 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:14:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 01:14:10,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 01:14:10,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 35 states and 47 transitions. [2018-12-09 01:14:10,996 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2018-12-09 01:14:10,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 01:14:10,996 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 01:14:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:14:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:14:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:14:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:14:11,035 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 14 iterations. [2018-12-09 01:14:11,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 01:14:11 ImpRootNode [2018-12-09 01:14:11,054 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 01:14:11,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:14:11,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:14:11,054 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:14:11,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:14:08" (3/4) ... [2018-12-09 01:14:11,056 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 01:14:11,085 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0c327f9a-21e6-4ba8-b1fa-ffb7694ce282/bin-2019/ukojak/witness.graphml [2018-12-09 01:14:11,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:14:11,086 INFO L168 Benchmark]: Toolchain (without parser) took 3265.30 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 304.6 MB). Free memory was 956.0 MB in the beginning and 1.2 GB in the end (delta: -266.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:11,087 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:14:11,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.59 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:11,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.37 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:14:11,088 INFO L168 Benchmark]: Boogie Preprocessor took 9.93 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:11,088 INFO L168 Benchmark]: RCFGBuilder took 170.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:11,088 INFO L168 Benchmark]: CodeCheck took 2911.74 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -122.4 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. [2018-12-09 01:14:11,089 INFO L168 Benchmark]: Witness Printer took 31.14 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:14:11,091 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 33 locations, 6 error locations. UNSAFE Result, 2.8s OverallTime, 14 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54024 SDtfs, 49208 SDslu, 4040 SDs, 0 SdLazy, 278338 SolverSat, 82534 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1885 GetRequests, 1723 SyntacticMatches, 46 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5146 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 6181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 42/51 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int m = __VERIFIER_nondet_int(); [L27] COND FALSE !(m < 0) [L30] int n = __VERIFIER_nondet_int(); [L31] COND FALSE !(n < 0) [L34] CALL mult(m, n) VAL [\old(m)=2, \old(n)=2147483647] [L16] COND FALSE !(m < 0) VAL [\old(m)=2, \old(n)=2147483647, m=2, n=2147483647] [L19] COND FALSE !(m == 0) VAL [\old(m)=2, \old(n)=2147483647, m=2, n=2147483647] [L22] EXPR m - 1 VAL [\old(m)=2, \old(n)=2147483647, m=2, n=2147483647] [L22] CALL, EXPR mult(n, m - 1) VAL [\old(m)=1, \old(n)=2147483647] [L16] COND FALSE !(m < 0) VAL [\old(m)=1, \old(n)=2147483647, m=1, n=2147483647] [L19] COND FALSE !(m == 0) VAL [\old(m)=1, \old(n)=2147483647, m=1, n=2147483647] [L22] EXPR m - 1 VAL [\old(m)=1, \old(n)=2147483647, m=1, n=2147483647] [L22] CALL, EXPR mult(n, m - 1) VAL [\old(m)=0, \old(n)=2147483647] [L16] COND FALSE !(m < 0) VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] [L19] COND TRUE m == 0 [L20] return 0; VAL [\old(m)=0, \old(n)=2147483647, \result=0, m=0, n=2147483647] [L22] RET, EXPR mult(n, m - 1) VAL [\old(m)=1, \old(n)=2147483647, m=1, mult(n, m - 1)=0, n=2147483647] [L22] EXPR n + mult(n, m - 1) [L22] return n + mult(n, m - 1); [L22] RET, EXPR mult(n, m - 1) VAL [\old(m)=2, \old(n)=2147483647, m=2, mult(n, m - 1)=2147483647, n=2147483647] [L22] n + mult(n, m - 1) VAL [\old(m)=2, \old(n)=2147483647, m=2, mult(n, m - 1)=2147483647, n=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 120.59 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.37 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.93 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 170.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * CodeCheck took 2911.74 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 181.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -122.4 MB). Peak memory consumption was 59.5 MB. Max. memory is 11.5 GB. * Witness Printer took 31.14 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...