./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/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 5155088d89d02424835a418b2f1dfc7cb44efefa .................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 01:41:53,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:41:53,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:41:54,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:41:54,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:41:54,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:41:54,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:41:54,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:41:54,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:41:54,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:41:54,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:41:54,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:41:54,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:41:54,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:41:54,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:41:54,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:41:54,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:41:54,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:41:54,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:41:54,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:41:54,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:41:54,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:41:54,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:41:54,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:41:54,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:41:54,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:41:54,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:41:54,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:41:54,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:41:54,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:41:54,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:41:54,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:41:54,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:41:54,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:41:54,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:41:54,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:41:54,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:41:54,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:41:54,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:41:54,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:41:54,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:41:54,056 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-20 01:41:54,083 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:41:54,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:41:54,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 01:41:54,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 01:41:54,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:41:54,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:41:54,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:41:54,086 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 01:41:54,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:41:54,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:41:54,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:41:54,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:41:54,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:41:54,087 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 01:41:54,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:41:54,087 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:41:54,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:41:54,088 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 01:41:54,088 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 01:41:54,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:41:54,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:41:54,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 01:41:54,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:41:54,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:41:54,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:41:54,090 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 01:41:54,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:41:54,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:41:54,090 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_44105fc6-ca90-484e-9ebb-15a1d56b138a/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 ! 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 -> 5155088d89d02424835a418b2f1dfc7cb44efefa [2019-11-20 01:41:54,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:41:54,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:41:54,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:41:54,294 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:41:54,295 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:41:54,296 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c [2019-11-20 01:41:54,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/ukojak/data/8648db337/6b6bf149f88144cd950132266194e51b/FLAG7abe595de [2019-11-20 01:41:54,838 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:41:54,839 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c [2019-11-20 01:41:54,844 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/ukojak/data/8648db337/6b6bf149f88144cd950132266194e51b/FLAG7abe595de [2019-11-20 01:41:55,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/ukojak/data/8648db337/6b6bf149f88144cd950132266194e51b [2019-11-20 01:41:55,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:41:55,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:41:55,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:41:55,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:41:55,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:41:55,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:41:55" (1/1) ... [2019-11-20 01:41:55,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509f1822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55, skipping insertion in model container [2019-11-20 01:41:55,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:41:55" (1/1) ... [2019-11-20 01:41:55,268 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:41:55,286 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:41:55,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:41:55,498 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:41:55,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:41:55,606 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:41:55,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55 WrapperNode [2019-11-20 01:41:55,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:41:55,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:41:55,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:41:55,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:41:55,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55" (1/1) ... [2019-11-20 01:41:55,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55" (1/1) ... [2019-11-20 01:41:55,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:41:55,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:41:55,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:41:55,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:41:55,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55" (1/1) ... [2019-11-20 01:41:55,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55" (1/1) ... [2019-11-20 01:41:55,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55" (1/1) ... [2019-11-20 01:41:55,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55" (1/1) ... [2019-11-20 01:41:55,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55" (1/1) ... [2019-11-20 01:41:55,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55" (1/1) ... [2019-11-20 01:41:55,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55" (1/1) ... [2019-11-20 01:41:55,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:41:55,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:41:55,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:41:55,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:41:55,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:41:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/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 01:41:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:41:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:41:56,028 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:41:56,029 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 01:41:56,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:41:56 BoogieIcfgContainer [2019-11-20 01:41:56,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:41:56,031 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 01:41:56,031 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 01:41:56,053 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 01:41:56,053 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:41:56" (1/1) ... [2019-11-20 01:41:56,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:41:56,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:41:56,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2019-11-20 01:41:56,142 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-11-20 01:41:56,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 01:41:56,144 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:41:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:41:56,278 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 01:41:56,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:41:56,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2019-11-20 01:41:56,358 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-11-20 01:41:56,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 01:41:56,358 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:41:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:41:56,415 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 01:41:56,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:41:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2019-11-20 01:41:56,681 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2019-11-20 01:41:56,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 01:41:56,682 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:41:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:41:56,756 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 01:41:56,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:41:56,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2019-11-20 01:41:56,970 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2019-11-20 01:41:56,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 01:41:56,970 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:41:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:41:57,005 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 01:41:57,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:41:57,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2019-11-20 01:41:57,232 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2019-11-20 01:41:57,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 01:41:57,233 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:41:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:41:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:41:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:41:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:41:57,328 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2019-11-20 01:41:57,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 01:41:57 ImpRootNode [2019-11-20 01:41:57,357 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 01:41:57,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:41:57,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:41:57,358 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:41:57,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:41:56" (3/4) ... [2019-11-20 01:41:57,360 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 01:41:57,410 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_44105fc6-ca90-484e-9ebb-15a1d56b138a/bin/ukojak/witness.graphml [2019-11-20 01:41:57,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:41:57,416 INFO L168 Benchmark]: Toolchain (without parser) took 2165.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -64.0 MB). Peak memory consumption was 83.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:41:57,416 INFO L168 Benchmark]: CDTParser took 0.65 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 01:41:57,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 01:41:57,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.31 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 01:41:57,418 INFO L168 Benchmark]: Boogie Preprocessor took 25.86 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:41:57,418 INFO L168 Benchmark]: RCFGBuilder took 354.85 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 01:41:57,420 INFO L168 Benchmark]: CodeCheck took 1326.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:41:57,421 INFO L168 Benchmark]: Witness Printer took 52.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:41:57,425 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, 16 locations, 6 error locations. Result: UNSAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 62 SDslu, 116 SDs, 0 SdLazy, 272 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 [L22] old_x + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 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. * CACSL2BoogieTranslator took 359.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.31 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. * Boogie Preprocessor took 25.86 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 354.85 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * CodeCheck took 1326.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. * Witness Printer took 52.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...