./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex5.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_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4a648fa5fa39d22cc4861f70709210c393681db2 .................................................................................................................................................................................................................................. 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 03:14:59,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:14:59,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:14:59,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:14:59,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:14:59,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:14:59,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:14:59,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:14:59,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:14:59,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:14:59,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:14:59,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:14:59,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:14:59,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:14:59,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:14:59,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:14:59,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:14:59,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:14:59,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:14:59,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:14:59,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:14:59,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:14:59,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:14:59,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:14:59,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:14:59,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:14:59,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:14:59,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:14:59,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:14:59,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:14:59,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:14:59,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:14:59,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:14:59,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:14:59,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:14:59,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:14:59,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:14:59,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:14:59,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:14:59,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:14:59,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:14:59,907 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 03:14:59,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:14:59,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:14:59,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:14:59,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:14:59,960 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:14:59,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:14:59,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:14:59,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:14:59,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:14:59,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:14:59,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:14:59,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:14:59,963 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:14:59,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:14:59,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:14:59,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:14:59,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:14:59,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:14:59,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:14:59,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:14:59,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:59,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:14:59,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:14:59,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:14:59,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:14:59,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:14:59,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:14:59,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:14:59,967 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_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a648fa5fa39d22cc4861f70709210c393681db2 [2020-11-28 03:15:00,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:00,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:00,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:00,320 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:00,321 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:00,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex5.c [2020-11-28 03:15:00,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/data/08a0cf07d/d76c3aa6fe144491a6c2e8be7a87006b/FLAG5a73e0490 [2020-11-28 03:15:00,929 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:00,930 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex5.c [2020-11-28 03:15:00,937 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/data/08a0cf07d/d76c3aa6fe144491a6c2e8be7a87006b/FLAG5a73e0490 [2020-11-28 03:15:01,284 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/data/08a0cf07d/d76c3aa6fe144491a6c2e8be7a87006b [2020-11-28 03:15:01,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:01,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:01,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:01,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:01,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:01,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38907e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01, skipping insertion in model container [2020-11-28 03:15:01,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:01,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:01,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:01,479 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:01,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:01,526 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:01,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01 WrapperNode [2020-11-28 03:15:01,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:01,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:01,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:01,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:01,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:01,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:01,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:01,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:01,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... [2020-11-28 03:15:01,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:01,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:01,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:01,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:01,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2020-11-28 03:15:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:01,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:01,860 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:01,861 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:15:01,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:01 BoogieIcfgContainer [2020-11-28 03:15:01,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:01,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:15:01,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:15:01,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:15:01,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:15:01" (1/3) ... [2020-11-28 03:15:01,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bb27ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:01, skipping insertion in model container [2020-11-28 03:15:01,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:01" (2/3) ... [2020-11-28 03:15:01,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bb27ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:01, skipping insertion in model container [2020-11-28 03:15:01,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:01" (3/3) ... [2020-11-28 03:15:01,872 INFO L111 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-WST2014-Ex5.c [2020-11-28 03:15:01,885 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:15:01,890 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:15:01,905 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 03:15:01,932 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:15:01,933 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:15:01,933 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:15:01,933 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:01,933 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:01,933 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:15:01,934 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:01,934 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:15:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 03:15:01,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 03:15:01,952 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:01,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 03:15:01,953 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:15:01,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:01,961 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-11-28 03:15:01,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:01,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940821067] [2020-11-28 03:15:01,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:02,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:02,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:02,098 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:02,099 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:15:02,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:15:02,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:02 BoogieIcfgContainer [2020-11-28 03:15:02,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:02,118 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:02,118 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:02,118 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:02,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:01" (3/4) ... [2020-11-28 03:15:02,121 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:15:02,163 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a5e84932-880b-440b-92da-392eb5e86208/bin/uautomizer/witness.graphml [2020-11-28 03:15:02,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:02,166 INFO L168 Benchmark]: Toolchain (without parser) took 876.56 ms. Allocated memory is still 98.6 MB. Free memory was 67.4 MB in the beginning and 54.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:02,168 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory was 33.2 MB in the beginning and 33.1 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:02,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.91 ms. Allocated memory is still 98.6 MB. Free memory was 67.2 MB in the beginning and 77.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:02,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.79 ms. Allocated memory is still 98.6 MB. Free memory was 77.0 MB in the beginning and 75.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:02,171 INFO L168 Benchmark]: Boogie Preprocessor took 25.74 ms. Allocated memory is still 98.6 MB. Free memory was 75.9 MB in the beginning and 74.9 MB in the end (delta: 987.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:02,172 INFO L168 Benchmark]: RCFGBuilder took 255.50 ms. Allocated memory is still 98.6 MB. Free memory was 74.9 MB in the beginning and 66.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:02,173 INFO L168 Benchmark]: TraceAbstraction took 252.60 ms. Allocated memory is still 98.6 MB. Free memory was 66.0 MB in the beginning and 55.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:02,174 INFO L168 Benchmark]: Witness Printer took 45.78 ms. Allocated memory is still 98.6 MB. Free memory was 55.5 MB in the beginning and 54.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:02,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 75.5 MB. Free memory was 33.2 MB in the beginning and 33.1 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 239.91 ms. Allocated memory is still 98.6 MB. Free memory was 67.2 MB in the beginning and 77.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.79 ms. Allocated memory is still 98.6 MB. Free memory was 77.0 MB in the beginning and 75.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.74 ms. Allocated memory is still 98.6 MB. Free memory was 75.9 MB in the beginning and 74.9 MB in the end (delta: 987.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 255.50 ms. Allocated memory is still 98.6 MB. Free memory was 74.9 MB in the beginning and 66.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 252.60 ms. Allocated memory is still 98.6 MB. Free memory was 66.0 MB in the beginning and 55.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 45.78 ms. Allocated memory is still 98.6 MB. Free memory was 55.5 MB in the beginning and 54.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int a, b, olda; [L15] a = __VERIFIER_nondet_int() [L16] b = __VERIFIER_nondet_int() [L17] COND TRUE a >= 7 [L18] olda = a [L19] a = b [L20] olda + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...