./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i -s /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/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 058f2b919df241022a2d1e4bdbdaa26cd8e08c13 .................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 16:22:50,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:22:50,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:22:50,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:22:50,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:22:50,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:22:50,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:22:50,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:22:50,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:22:50,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:22:50,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:22:50,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:22:50,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:22:50,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:22:50,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:22:50,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:22:50,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:22:50,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:22:50,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:22:50,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:22:50,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:22:50,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:22:50,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:22:50,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:22:50,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:22:50,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:22:50,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:22:50,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:22:50,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:22:50,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:22:50,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:22:50,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:22:50,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:22:50,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:22:50,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:22:50,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:22:50,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:22:50,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:22:50,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:22:50,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:22:50,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:22:50,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 16:22:50,872 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:22:50,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:22:50,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:22:50,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:22:50,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:22:50,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:22:50,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:22:50,882 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:22:50,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:22:50,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:22:50,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:22:50,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:22:50,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:22:50,884 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 16:22:50,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:22:50,885 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:22:50,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:22:50,885 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:22:50,886 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:22:50,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:22:50,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:22:50,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:22:50,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:22:50,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:22:50,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:22:50,887 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:22:50,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:22:50,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:22:50,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 058f2b919df241022a2d1e4bdbdaa26cd8e08c13 [2020-12-01 16:22:51,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:22:51,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:22:51,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:22:51,284 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:22:51,285 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:22:51,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i [2020-12-01 16:22:51,379 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/data/5e672cfc0/7db4a687b8d640f789f40b0cb8336bab/FLAG79ed0b256 [2020-12-01 16:22:51,916 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:22:51,918 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/sv-benchmarks/c/signedintegeroverflow-regression/PrefixDecrement.i [2020-12-01 16:22:51,931 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/data/5e672cfc0/7db4a687b8d640f789f40b0cb8336bab/FLAG79ed0b256 [2020-12-01 16:22:52,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/data/5e672cfc0/7db4a687b8d640f789f40b0cb8336bab [2020-12-01 16:22:52,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:22:52,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:22:52,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:22:52,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:22:52,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:22:52,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:22:52" (1/1) ... [2020-12-01 16:22:52,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@767c2805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52, skipping insertion in model container [2020-12-01 16:22:52,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:22:52" (1/1) ... [2020-12-01 16:22:52,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:22:52,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:22:52,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:22:52,611 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:22:52,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:22:52,688 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:22:52,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52 WrapperNode [2020-12-01 16:22:52,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:22:52,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:22:52,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:22:52,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:22:52,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52" (1/1) ... [2020-12-01 16:22:52,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52" (1/1) ... [2020-12-01 16:22:52,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:22:52,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:22:52,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:22:52,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:22:52,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52" (1/1) ... [2020-12-01 16:22:52,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52" (1/1) ... [2020-12-01 16:22:52,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52" (1/1) ... [2020-12-01 16:22:52,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52" (1/1) ... [2020-12-01 16:22:52,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52" (1/1) ... [2020-12-01 16:22:52,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52" (1/1) ... [2020-12-01 16:22:52,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52" (1/1) ... [2020-12-01 16:22:52,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:22:52,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:22:52,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:22:52,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:22:52,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:22:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/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 [2020-12-01 16:22:52,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:22:52,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:22:52,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:22:52,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:22:53,112 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:22:53,112 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-01 16:22:53,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:22:53 BoogieIcfgContainer [2020-12-01 16:22:53,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:22:53,117 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:22:53,117 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:22:53,141 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:22:53,142 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:22:53" (1/1) ... [2020-12-01 16:22:53,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:22:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:53,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 6 states and 5 transitions. [2020-12-01 16:22:53,241 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-12-01 16:22:53,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-01 16:22:53,244 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:22:53,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:22:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:22:53,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 5 states and 4 transitions. [2020-12-01 16:22:53,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2020-12-01 16:22:53,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:22:53,561 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:22:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:22:53,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:22:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:22:53,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:22:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:22:53,639 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:22:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:22:53,646 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:22:53,657 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-12-01 16:22:53,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:22:53 ImpRootNode [2020-12-01 16:22:53,676 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:22:53,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:22:53,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:22:53,677 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:22:53,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:22:53" (3/4) ... [2020-12-01 16:22:53,680 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:22:53,731 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_311a73b9-dfd5-46dc-9181-db503bb4a7f9/bin/ukojak/witness.graphml [2020-12-01 16:22:53,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:22:53,739 INFO L168 Benchmark]: Toolchain (without parser) took 1491.86 ms. Allocated memory is still 104.9 MB. Free memory was 71.2 MB in the beginning and 39.7 MB in the end (delta: 31.5 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:53,740 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory was 36.1 MB in the beginning and 36.0 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:22:53,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.21 ms. Allocated memory is still 104.9 MB. Free memory was 71.0 MB in the beginning and 71.5 MB in the end (delta: -528.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:53,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.38 ms. Allocated memory is still 104.9 MB. Free memory was 71.5 MB in the beginning and 70.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:53,744 INFO L168 Benchmark]: Boogie Preprocessor took 20.98 ms. Allocated memory is still 104.9 MB. Free memory was 70.0 MB in the beginning and 69.1 MB in the end (delta: 881.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:22:53,745 INFO L168 Benchmark]: RCFGBuilder took 362.09 ms. Allocated memory is still 104.9 MB. Free memory was 69.1 MB in the beginning and 56.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:53,752 INFO L168 Benchmark]: CodeCheck took 559.57 ms. Allocated memory is still 104.9 MB. Free memory was 56.9 MB in the beginning and 41.2 MB in the end (delta: 15.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:22:53,753 INFO L168 Benchmark]: Witness Printer took 55.06 ms. Allocated memory is still 104.9 MB. Free memory was 41.2 MB in the beginning and 39.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:22:53,759 INFO L339 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, 6 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 333]: integer overflow possible integer overflow possible We found a FailurePath: [L332] int x = -2147483647 - 1; [L333] --x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory was 36.1 MB in the beginning and 36.0 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 445.21 ms. Allocated memory is still 104.9 MB. Free memory was 71.0 MB in the beginning and 71.5 MB in the end (delta: -528.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.38 ms. Allocated memory is still 104.9 MB. Free memory was 71.5 MB in the beginning and 70.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.98 ms. Allocated memory is still 104.9 MB. Free memory was 70.0 MB in the beginning and 69.1 MB in the end (delta: 881.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 362.09 ms. Allocated memory is still 104.9 MB. Free memory was 69.1 MB in the beginning and 56.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 559.57 ms. Allocated memory is still 104.9 MB. Free memory was 56.9 MB in the beginning and 41.2 MB in the end (delta: 15.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 55.06 ms. Allocated memory is still 104.9 MB. Free memory was 41.2 MB in the beginning and 39.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...