./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/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 7b8d2b598ac3326e286016998f443939dfd4be1d .............................................................................................................................................................................................................................. 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-a4ecdab [2020-11-28 04:33:16,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:33:16,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:33:17,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:33:17,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:33:17,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:33:17,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:33:17,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:33:17,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:33:17,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:33:17,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:33:17,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:33:17,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:33:17,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:33:17,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:33:17,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:33:17,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:33:17,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:33:17,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:33:17,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:33:17,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:33:17,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:33:17,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:33:17,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:33:17,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:33:17,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:33:17,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:33:17,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:33:17,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:33:17,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:33:17,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:33:17,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:33:17,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:33:17,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:33:17,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:33:17,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:33:17,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:33:17,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:33:17,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:33:17,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:33:17,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:33:17,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:33:17,143 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:33:17,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:33:17,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:33:17,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:33:17,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:33:17,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:33:17,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:33:17,154 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:33:17,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:33:17,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:33:17,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:33:17,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:33:17,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:33:17,156 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:33:17,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:33:17,156 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:33:17,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:33:17,157 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:33:17,157 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:33:17,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:33:17,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:33:17,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:33:17,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:33:17,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:33:17,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:33:17,159 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:33:17,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:33:17,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:33:17,160 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_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b8d2b598ac3326e286016998f443939dfd4be1d [2020-11-28 04:33:17,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:33:17,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:33:17,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:33:17,477 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:33:17,479 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:33:17,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a.c [2020-11-28 04:33:17,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak/data/b6a24e54a/5621c318d91f4358b63d72f44954e28c/FLAG1590b0c80 [2020-11-28 04:33:18,081 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:33:18,083 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2a.c [2020-11-28 04:33:18,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak/data/b6a24e54a/5621c318d91f4358b63d72f44954e28c/FLAG1590b0c80 [2020-11-28 04:33:18,459 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak/data/b6a24e54a/5621c318d91f4358b63d72f44954e28c [2020-11-28 04:33:18,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:33:18,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:33:18,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:18,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:33:18,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:33:18,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:18" (1/1) ... [2020-11-28 04:33:18,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58148738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18, skipping insertion in model container [2020-11-28 04:33:18,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:18" (1/1) ... [2020-11-28 04:33:18,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:33:18,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:33:18,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:18,724 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:33:18,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:18,766 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:33:18,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18 WrapperNode [2020-11-28 04:33:18,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:18,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:18,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:33:18,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:33:18,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18" (1/1) ... [2020-11-28 04:33:18,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18" (1/1) ... [2020-11-28 04:33:18,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:18,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:33:18,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:33:18,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:33:18,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18" (1/1) ... [2020-11-28 04:33:18,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18" (1/1) ... [2020-11-28 04:33:18,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18" (1/1) ... [2020-11-28 04:33:18,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18" (1/1) ... [2020-11-28 04:33:18,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18" (1/1) ... [2020-11-28 04:33:18,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18" (1/1) ... [2020-11-28 04:33:18,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18" (1/1) ... [2020-11-28 04:33:18,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:33:18,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:33:18,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:33:18,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:33:18,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/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 [2020-11-28 04:33:18,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:33:18,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:33:19,541 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:33:19,542 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:33:19,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:19 BoogieIcfgContainer [2020-11-28 04:33:19,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:33:19,547 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:33:19,547 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:33:19,560 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:33:19,560 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:19" (1/1) ... [2020-11-28 04:33:19,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:33:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:19,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2020-11-28 04:33:19,630 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-11-28 04:33:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:33:19,632 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:19,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:19,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 27 states and 30 transitions. [2020-11-28 04:33:19,869 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2020-11-28 04:33:19,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:33:19,869 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:19,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:19,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:19,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 26 states and 29 transitions. [2020-11-28 04:33:19,982 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-11-28 04:33:19,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:33:19,983 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:19,998 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:20,008 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:20,037 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:20,046 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:20,052 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2020-11-28 04:33:20,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:33:20 ImpRootNode [2020-11-28 04:33:20,072 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:33:20,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:33:20,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:33:20,073 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:33:20,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:19" (3/4) ... [2020-11-28 04:33:20,076 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:33:20,116 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1da0966b-15f6-41f9-9aaf-c1c20d9f807c/bin/ukojak/witness.graphml [2020-11-28 04:33:20,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:33:20,119 INFO L168 Benchmark]: Toolchain (without parser) took 1652.61 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 55.3 MB in the beginning and 43.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:20,120 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 41.1 MB in the beginning and 41.1 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:20,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.79 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 55.1 MB in the beginning and 82.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:20,122 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.90 ms. Allocated memory is still 102.8 MB. Free memory was 82.1 MB in the beginning and 80.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:20,122 INFO L168 Benchmark]: Boogie Preprocessor took 21.72 ms. Allocated memory is still 102.8 MB. Free memory was 80.9 MB in the beginning and 80.2 MB in the end (delta: 710.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:20,123 INFO L168 Benchmark]: RCFGBuilder took 718.66 ms. Allocated memory is still 102.8 MB. Free memory was 80.2 MB in the beginning and 66.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:20,124 INFO L168 Benchmark]: CodeCheck took 525.34 ms. Allocated memory is still 102.8 MB. Free memory was 66.2 MB in the beginning and 44.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:20,125 INFO L168 Benchmark]: Witness Printer took 43.57 ms. Allocated memory is still 102.8 MB. Free memory was 44.6 MB in the beginning and 43.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:20,129 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, 25 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 40 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] COND TRUE x >= 2 [L18] EXPR x - 1 [L18] x = x - 1 [L19] y + x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 41.1 MB in the beginning and 41.1 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.79 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 55.1 MB in the beginning and 82.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.90 ms. Allocated memory is still 102.8 MB. Free memory was 82.1 MB in the beginning and 80.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.72 ms. Allocated memory is still 102.8 MB. Free memory was 80.9 MB in the beginning and 80.2 MB in the end (delta: 710.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 718.66 ms. Allocated memory is still 102.8 MB. Free memory was 80.2 MB in the beginning and 66.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 525.34 ms. Allocated memory is still 102.8 MB. Free memory was 66.2 MB in the beginning and 44.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 43.57 ms. Allocated memory is still 102.8 MB. Free memory was 44.6 MB in the beginning and 43.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...