./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 c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark29_linear.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8ea6dc0bafa5a28653d9fabe4d322befcb916956980332e0149835c6371af6a1 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:06:47,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:06:47,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:06:47,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:06:47,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:06:47,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:06:47,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:06:47,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:06:47,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:06:47,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:06:47,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:06:47,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:06:47,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:06:47,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:06:47,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:06:47,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:06:47,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:06:47,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:06:47,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:06:47,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:06:47,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:06:47,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:06:47,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:06:47,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:06:47,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:06:47,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:06:47,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:06:47,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:06:47,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:06:47,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:06:47,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:06:47,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:06:47,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:06:47,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:06:47,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:06:47,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:06:47,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:06:47,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:06:47,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:06:47,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:06:47,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:06:47,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-16 09:06:47,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:06:47,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:06:47,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:06:47,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:06:47,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 09:06:47,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 09:06:47,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:06:47,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:06:47,768 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:06:47,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:06:47,769 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 09:06:47,770 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:06:47,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:06:47,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 09:06:47,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:06:47,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 09:06:47,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 09:06:47,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 09:06:47,770 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-16 09:06:47,771 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 09:06:47,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:06:47,771 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:06:47,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 09:06:47,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:06:47,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:06:47,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 09:06:47,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 09:06:47,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:06:47,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 09:06:47,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 09:06:47,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:06:47,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 09:06:47,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 09:06:47,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:06:47,773 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ea6dc0bafa5a28653d9fabe4d322befcb916956980332e0149835c6371af6a1 [2021-12-16 09:06:47,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:06:47,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:06:47,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:06:47,985 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:06:47,985 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:06:47,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark29_linear.i [2021-12-16 09:06:48,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9bd345b/7bf16d0565f84307ac17c746adb11dc0/FLAG359c78dda [2021-12-16 09:06:48,394 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:06:48,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark29_linear.i [2021-12-16 09:06:48,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9bd345b/7bf16d0565f84307ac17c746adb11dc0/FLAG359c78dda [2021-12-16 09:06:48,405 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9bd345b/7bf16d0565f84307ac17c746adb11dc0 [2021-12-16 09:06:48,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:06:48,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:06:48,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:06:48,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:06:48,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:06:48,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610ee699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48, skipping insertion in model container [2021-12-16 09:06:48,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:06:48,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:06:48,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark29_linear.i[868,881] [2021-12-16 09:06:48,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:06:48,548 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:06:48,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark29_linear.i[868,881] [2021-12-16 09:06:48,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:06:48,573 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:06:48,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48 WrapperNode [2021-12-16 09:06:48,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:06:48,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:06:48,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:06:48,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:06:48,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,596 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2021-12-16 09:06:48,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:06:48,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:06:48,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:06:48,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:06:48,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:06:48,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:06:48,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:06:48,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:06:48,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48" (1/1) ... [2021-12-16 09:06:48,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 09:06:48,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:06:48,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 09:06:48,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 09:06:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 09:06:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 09:06:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:06:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:06:48,708 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:06:48,709 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:06:48,807 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:06:48,811 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:06:48,811 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 09:06:48,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:06:48 BoogieIcfgContainer [2021-12-16 09:06:48,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:06:48,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 09:06:48,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 09:06:48,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 09:06:48,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:06:48" (1/3) ... [2021-12-16 09:06:48,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189ddc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:06:48, skipping insertion in model container [2021-12-16 09:06:48,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:06:48" (2/3) ... [2021-12-16 09:06:48,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189ddc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:06:48, skipping insertion in model container [2021-12-16 09:06:48,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:06:48" (3/3) ... [2021-12-16 09:06:48,820 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark29_linear.i [2021-12-16 09:06:48,824 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 09:06:48,824 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-16 09:06:48,867 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 09:06:48,878 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 09:06:48,878 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-16 09:06:48,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.6) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:06:48,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-16 09:06:48,892 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:06:48,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-16 09:06:48,893 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-16 09:06:48,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:06:48,896 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-12-16 09:06:48,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:06:48,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101047298] [2021-12-16 09:06:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:06:48,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:06:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:06:48,969 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:06:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:06:48,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:06:49,000 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-16 09:06:49,001 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-12-16 09:06:49,003 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-12-16 09:06:49,004 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-12-16 09:06:49,004 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-12-16 09:06:49,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 09:06:49,008 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-16 09:06:49,011 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 09:06:49,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:06:49 BoogieIcfgContainer [2021-12-16 09:06:49,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 09:06:49,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 09:06:49,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 09:06:49,029 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 09:06:49,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:06:48" (3/4) ... [2021-12-16 09:06:49,031 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-16 09:06:49,059 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 09:06:49,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 09:06:49,060 INFO L158 Benchmark]: Toolchain (without parser) took 651.90ms. Allocated memory is still 111.1MB. Free memory was 78.3MB in the beginning and 60.2MB in the end (delta: 18.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2021-12-16 09:06:49,061 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 79.7MB. Free memory is still 37.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:06:49,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.59ms. Allocated memory is still 111.1MB. Free memory was 78.1MB in the beginning and 86.3MB in the end (delta: -8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 09:06:49,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.01ms. Allocated memory is still 111.1MB. Free memory was 86.3MB in the beginning and 84.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:06:49,065 INFO L158 Benchmark]: Boogie Preprocessor took 22.77ms. Allocated memory is still 111.1MB. Free memory was 84.8MB in the beginning and 83.8MB in the end (delta: 982.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:06:49,066 INFO L158 Benchmark]: RCFGBuilder took 191.78ms. Allocated memory is still 111.1MB. Free memory was 83.8MB in the beginning and 74.9MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 09:06:49,066 INFO L158 Benchmark]: TraceAbstraction took 213.37ms. Allocated memory is still 111.1MB. Free memory was 74.3MB in the beginning and 61.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-16 09:06:49,066 INFO L158 Benchmark]: Witness Printer took 30.51ms. Allocated memory is still 111.1MB. Free memory was 61.7MB in the beginning and 60.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:06:49,070 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 79.7MB. Free memory is still 37.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.59ms. Allocated memory is still 111.1MB. Free memory was 78.1MB in the beginning and 86.3MB in the end (delta: -8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.01ms. Allocated memory is still 111.1MB. Free memory was 86.3MB in the beginning and 84.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.77ms. Allocated memory is still 111.1MB. Free memory was 84.8MB in the beginning and 83.8MB in the end (delta: 982.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 191.78ms. Allocated memory is still 111.1MB. Free memory was 83.8MB in the beginning and 74.9MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 213.37ms. Allocated memory is still 111.1MB. Free memory was 74.3MB in the beginning and 61.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 30.51ms. Allocated memory is still 111.1MB. Free memory was 61.7MB in the beginning and 60.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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