./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark29_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark29_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/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 32bit --witnessprinter.graph.data.programhash c4625b148f90f3975adde83debc743ab9ed47526 ..................................................................................................................................................................................................................................... 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 03:15:50,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:15:50,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:15:50,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:15:50,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:15:50,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:15:50,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:15:50,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:15:50,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:15:50,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:15:50,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:15:50,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:15:50,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:15:50,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:15:50,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:15:50,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:15:50,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:15:50,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:15:50,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:15:50,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:15:50,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:15:50,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:15:50,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:15:50,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:15:50,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:15:50,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:15:50,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:15:50,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:15:50,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:15:50,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:15:50,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:15:50,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:15:50,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:15:50,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:15:50,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:15:50,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:15:50,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:15:50,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:15:50,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:15:50,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:15:50,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:15:50,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-28 03:15:50,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:15:50,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:15:50,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:15:50,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:15:50,884 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:15:50,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:15:50,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:15:50,885 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:15:50,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:15:50,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:15:50,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:15:50,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:15:50,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:15:50,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:15:50,886 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:15:50,887 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:15:50,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:15:50,887 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:15:50,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:15:50,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:15:50,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:15:50,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:15:50,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:15:50,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:50,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:15:50,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:15:50,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:15:50,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:15:50,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:15:50,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:15:50,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:15:50,891 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_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4625b148f90f3975adde83debc743ab9ed47526 [2020-11-28 03:15:51,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:51,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:51,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:51,210 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:51,211 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:51,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer/../../sv-benchmarks/c/loop-zilu/benchmark29_linear.i [2020-11-28 03:15:51,299 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer/data/f0320dc1e/ecc270752e364c5490b25c8cf4f678d8/FLAG9b1cb59f4 [2020-11-28 03:15:51,884 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:51,886 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/sv-benchmarks/c/loop-zilu/benchmark29_linear.i [2020-11-28 03:15:51,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer/data/f0320dc1e/ecc270752e364c5490b25c8cf4f678d8/FLAG9b1cb59f4 [2020-11-28 03:15:52,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer/data/f0320dc1e/ecc270752e364c5490b25c8cf4f678d8 [2020-11-28 03:15:52,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:52,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:52,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:52,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:52,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:52,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:52" (1/1) ... [2020-11-28 03:15:52,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404ac2ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52, skipping insertion in model container [2020-11-28 03:15:52,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:52" (1/1) ... [2020-11-28 03:15:52,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:52,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:52,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:52,581 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:52,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:52,631 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:52,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52 WrapperNode [2020-11-28 03:15:52,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:52,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:52,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:52,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:52,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52" (1/1) ... [2020-11-28 03:15:52,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52" (1/1) ... [2020-11-28 03:15:52,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:52,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:52,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:52,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:52,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52" (1/1) ... [2020-11-28 03:15:52,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52" (1/1) ... [2020-11-28 03:15:52,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52" (1/1) ... [2020-11-28 03:15:52,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52" (1/1) ... [2020-11-28 03:15:52,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52" (1/1) ... [2020-11-28 03:15:52,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52" (1/1) ... [2020-11-28 03:15:52,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52" (1/1) ... [2020-11-28 03:15:52,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:52,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:52,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:52,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:52,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/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 03:15:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:15:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:15:52,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:52,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:53,289 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:53,290 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:15:53,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:53 BoogieIcfgContainer [2020-11-28 03:15:53,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:53,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:15:53,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:15:53,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:15:53,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:15:52" (1/3) ... [2020-11-28 03:15:53,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625aaa1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:53, skipping insertion in model container [2020-11-28 03:15:53,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:52" (2/3) ... [2020-11-28 03:15:53,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625aaa1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:53, skipping insertion in model container [2020-11-28 03:15:53,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:53" (3/3) ... [2020-11-28 03:15:53,306 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark29_linear.i [2020-11-28 03:15:53,319 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:15:53,324 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-28 03:15:53,338 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-28 03:15:53,379 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:15:53,381 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:15:53,382 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:15:53,382 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:53,382 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:53,382 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:15:53,383 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:53,383 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:15:53,402 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-28 03:15:53,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:15:53,408 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:53,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:15:53,409 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:15:53,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:53,417 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2020-11-28 03:15:53,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:53,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341387083] [2020-11-28 03:15:53,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:53,538 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:53,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:53,584 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:53,585 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:15:53,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:15:53,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:53 BoogieIcfgContainer [2020-11-28 03:15:53,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:53,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:53,612 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:53,612 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:53,613 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:53" (3/4) ... [2020-11-28 03:15:53,615 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:15:53,656 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2e683ca0-4ab7-41dc-b65e-3c16b4a54797/bin/uautomizer/witness.graphml [2020-11-28 03:15:53,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:53,659 INFO L168 Benchmark]: Toolchain (without parser) took 1405.12 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 56.6 MB in the beginning and 66.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:53,660 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 45.8 MB in the beginning and 45.7 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:53,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.04 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 56.3 MB in the beginning and 94.5 MB in the end (delta: -38.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:53,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.97 ms. Allocated memory is still 117.4 MB. Free memory was 94.5 MB in the beginning and 93.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:53,664 INFO L168 Benchmark]: Boogie Preprocessor took 52.37 ms. Allocated memory is still 117.4 MB. Free memory was 93.0 MB in the beginning and 92.4 MB in the end (delta: 652.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:53,665 INFO L168 Benchmark]: RCFGBuilder took 555.03 ms. Allocated memory is still 117.4 MB. Free memory was 92.4 MB in the beginning and 80.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:53,666 INFO L168 Benchmark]: TraceAbstraction took 313.10 ms. Allocated memory is still 117.4 MB. Free memory was 79.7 MB in the beginning and 68.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:53,667 INFO L168 Benchmark]: Witness Printer took 45.40 ms. Allocated memory is still 117.4 MB. Free memory was 68.5 MB in the beginning and 66.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:53,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 45.8 MB in the beginning and 45.7 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 367.04 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 56.3 MB in the beginning and 94.5 MB in the end (delta: -38.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.97 ms. Allocated memory is still 117.4 MB. Free memory was 94.5 MB in the beginning and 93.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.37 ms. Allocated memory is still 117.4 MB. Free memory was 93.0 MB in the beginning and 92.4 MB in the end (delta: 652.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 555.03 ms. Allocated memory is still 117.4 MB. Free memory was 92.4 MB in the beginning and 80.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 313.10 ms. Allocated memory is still 117.4 MB. Free memory was 79.7 MB in the beginning and 68.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 45.40 ms. Allocated memory is still 117.4 MB. Free memory was 68.5 MB in the beginning and 66.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x