./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/s12iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/array-fpi/s12iff.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b77a49aa9e2fe58d44cd30e10a0c2d54049996239a42f9eb129163eea28c3fb --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 22:13:21,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 22:13:21,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 22:13:21,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 22:13:21,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 22:13:21,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 22:13:21,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 22:13:21,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 22:13:21,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 22:13:21,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 22:13:21,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 22:13:21,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 22:13:21,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 22:13:21,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 22:13:21,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 22:13:21,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 22:13:21,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 22:13:21,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 22:13:21,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 22:13:21,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 22:13:21,189 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 22:13:21,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 22:13:21,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 22:13:21,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 22:13:21,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 22:13:21,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 22:13:21,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 22:13:21,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 22:13:21,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 22:13:21,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 22:13:21,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 22:13:21,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 22:13:21,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 22:13:21,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 22:13:21,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 22:13:21,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 22:13:21,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 22:13:21,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 22:13:21,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 22:13:21,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 22:13:21,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 22:13:21,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 22:13:21,205 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 22:13:21,239 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 22:13:21,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 22:13:21,240 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 22:13:21,240 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 22:13:21,241 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 22:13:21,241 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 22:13:21,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 22:13:21,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 22:13:21,242 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 22:13:21,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 22:13:21,242 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 22:13:21,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 22:13:21,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 22:13:21,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 22:13:21,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 22:13:21,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 22:13:21,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 22:13:21,244 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 22:13:21,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 22:13:21,244 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 22:13:21,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 22:13:21,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 22:13:21,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 22:13:21,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 22:13:21,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:13:21,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 22:13:21,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 22:13:21,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 22:13:21,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 22:13:21,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 22:13:21,247 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 22:13:21,248 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 22:13:21,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 22:13:21,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b77a49aa9e2fe58d44cd30e10a0c2d54049996239a42f9eb129163eea28c3fb [2022-07-20 22:13:21,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 22:13:21,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 22:13:21,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 22:13:21,495 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 22:13:21,496 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 22:13:21,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/s12iff.c [2022-07-20 22:13:21,558 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b6adc2d1/c2e54163a8cd488abb6c319070a86a59/FLAGf390f0ec2 [2022-07-20 22:13:21,934 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 22:13:21,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/s12iff.c [2022-07-20 22:13:21,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b6adc2d1/c2e54163a8cd488abb6c319070a86a59/FLAGf390f0ec2 [2022-07-20 22:13:22,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b6adc2d1/c2e54163a8cd488abb6c319070a86a59 [2022-07-20 22:13:22,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 22:13:22,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 22:13:22,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 22:13:22,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 22:13:22,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 22:13:22,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1552ff5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22, skipping insertion in model container [2022-07-20 22:13:22,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 22:13:22,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 22:13:22,477 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/array-fpi/s12iff.c[589,602] [2022-07-20 22:13:22,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:13:22,500 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 22:13:22,510 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/array-fpi/s12iff.c[589,602] [2022-07-20 22:13:22,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:13:22,530 INFO L208 MainTranslator]: Completed translation [2022-07-20 22:13:22,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22 WrapperNode [2022-07-20 22:13:22,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 22:13:22,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 22:13:22,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 22:13:22,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 22:13:22,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,558 INFO L137 Inliner]: procedures = 17, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2022-07-20 22:13:22,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 22:13:22,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 22:13:22,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 22:13:22,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 22:13:22,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 22:13:22,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 22:13:22,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 22:13:22,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 22:13:22,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22" (1/1) ... [2022-07-20 22:13:22,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:13:22,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:13:22,606 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) [2022-07-20 22:13:22,614 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 [2022-07-20 22:13:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 22:13:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 22:13:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 22:13:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 22:13:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 22:13:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 22:13:22,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 22:13:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 22:13:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 22:13:22,695 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 22:13:22,696 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 22:13:22,843 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 22:13:22,852 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 22:13:22,852 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-20 22:13:22,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:13:22 BoogieIcfgContainer [2022-07-20 22:13:22,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 22:13:22,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 22:13:22,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 22:13:22,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 22:13:22,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:13:22" (1/3) ... [2022-07-20 22:13:22,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133fef3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:13:22, skipping insertion in model container [2022-07-20 22:13:22,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:13:22" (2/3) ... [2022-07-20 22:13:22,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133fef3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:13:22, skipping insertion in model container [2022-07-20 22:13:22,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:13:22" (3/3) ... [2022-07-20 22:13:22,876 INFO L111 eAbstractionObserver]: Analyzing ICFG s12iff.c [2022-07-20 22:13:22,892 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 22:13:22,892 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 22:13:22,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 22:13:22,970 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4ae436dd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7425a23f [2022-07-20 22:13:22,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 22:13:22,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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) [2022-07-20 22:13:22,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-20 22:13:22,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:13:22,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:13:22,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:13:23,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:13:23,008 INFO L85 PathProgramCache]: Analyzing trace with hash -845308063, now seen corresponding path program 1 times [2022-07-20 22:13:23,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:13:23,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53189767] [2022-07-20 22:13:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:13:23,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:13:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:13:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:13:23,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:13:23,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53189767] [2022-07-20 22:13:23,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53189767] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:13:23,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:13:23,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:13:23,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837111433] [2022-07-20 22:13:23,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:13:23,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 22:13:23,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:13:23,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 22:13:23,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 22:13:23,249 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-07-20 22:13:23,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:13:23,263 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2022-07-20 22:13:23,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 22:13:23,265 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) Word has length 13 [2022-07-20 22:13:23,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:13:23,272 INFO L225 Difference]: With dead ends: 42 [2022-07-20 22:13:23,272 INFO L226 Difference]: Without dead ends: 19 [2022-07-20 22:13:23,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 22:13:23,278 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 22:13:23,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 22:13:23,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-20 22:13:23,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-20 22:13:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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) [2022-07-20 22:13:23,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-07-20 22:13:23,307 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 13 [2022-07-20 22:13:23,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:13:23,308 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-07-20 22:13:23,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-07-20 22:13:23,308 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-07-20 22:13:23,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-20 22:13:23,309 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:13:23,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:13:23,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 22:13:23,310 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:13:23,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:13:23,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1238662774, now seen corresponding path program 1 times [2022-07-20 22:13:23,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:13:23,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122148973] [2022-07-20 22:13:23,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:13:23,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:13:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:13:23,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:13:23,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:13:23,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122148973] [2022-07-20 22:13:23,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122148973] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:13:23,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:13:23,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 22:13:23,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227123122] [2022-07-20 22:13:23,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:13:23,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:13:23,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:13:23,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:13:23,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:13:23,419 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-07-20 22:13:23,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:13:23,506 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2022-07-20 22:13:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:13:23,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) Word has length 13 [2022-07-20 22:13:23,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:13:23,509 INFO L225 Difference]: With dead ends: 39 [2022-07-20 22:13:23,509 INFO L226 Difference]: Without dead ends: 27 [2022-07-20 22:13:23,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:13:23,514 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 22:13:23,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 11 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 22:13:23,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-20 22:13:23,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2022-07-20 22:13:23,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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) [2022-07-20 22:13:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-07-20 22:13:23,530 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 13 [2022-07-20 22:13:23,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:13:23,532 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-07-20 22:13:23,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-07-20 22:13:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-07-20 22:13:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-20 22:13:23,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:13:23,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:13:23,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 22:13:23,536 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:13:23,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:13:23,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1944018757, now seen corresponding path program 1 times [2022-07-20 22:13:23,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:13:23,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63513103] [2022-07-20 22:13:23,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:13:23,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:13:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 22:13:23,594 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-20 22:13:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 22:13:23,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-20 22:13:23,641 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-20 22:13:23,642 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-20 22:13:23,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 22:13:23,646 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-20 22:13:23,650 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 22:13:23,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:13:23 BoogieIcfgContainer [2022-07-20 22:13:23,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 22:13:23,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 22:13:23,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 22:13:23,674 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 22:13:23,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:13:22" (3/4) ... [2022-07-20 22:13:23,676 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-20 22:13:23,709 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-20 22:13:23,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 22:13:23,710 INFO L158 Benchmark]: Toolchain (without parser) took 1371.23ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 69.3MB in the beginning and 69.1MB in the end (delta: 159.6kB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-07-20 22:13:23,710 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:13:23,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.57ms. Allocated memory is still 96.5MB. Free memory was 69.1MB in the beginning and 72.1MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-20 22:13:23,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.69ms. Allocated memory is still 96.5MB. Free memory was 72.1MB in the beginning and 70.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:13:23,711 INFO L158 Benchmark]: Boogie Preprocessor took 18.58ms. Allocated memory is still 96.5MB. Free memory was 70.5MB in the beginning and 69.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 22:13:23,711 INFO L158 Benchmark]: RCFGBuilder took 276.07ms. Allocated memory is still 96.5MB. Free memory was 69.4MB in the beginning and 58.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-20 22:13:23,712 INFO L158 Benchmark]: TraceAbstraction took 818.12ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 57.8MB in the beginning and 71.7MB in the end (delta: -13.9MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2022-07-20 22:13:23,712 INFO L158 Benchmark]: Witness Printer took 35.20ms. Allocated memory is still 119.5MB. Free memory was 71.7MB in the beginning and 69.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 22:13:23,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.57ms. Allocated memory is still 96.5MB. Free memory was 69.1MB in the beginning and 72.1MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.69ms. Allocated memory is still 96.5MB. Free memory was 72.1MB in the beginning and 70.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.58ms. Allocated memory is still 96.5MB. Free memory was 70.5MB in the beginning and 69.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 276.07ms. Allocated memory is still 96.5MB. Free memory was 69.4MB in the beginning and 58.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 818.12ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 57.8MB in the beginning and 71.7MB in the end (delta: -13.9MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Witness Printer took 35.20ms. Allocated memory is still 119.5MB. Free memory was 71.7MB in the beginning and 69.1MB in the end (delta: 2.6MB). 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 VAL [a={-1:0}, i=0, N=1, sum={5:0}] [L32] COND TRUE i