./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ss3f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/ss3f.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 248b2d90a91115122eed8c2bc3ad2e8879fe9067 .................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 02:50:57,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 02:50:57,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 02:50:57,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 02:50:57,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 02:50:57,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 02:50:57,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 02:50:57,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 02:50:57,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 02:50:57,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 02:50:57,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 02:50:57,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 02:50:57,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 02:50:57,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 02:50:57,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 02:50:57,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 02:50:57,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 02:50:57,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 02:50:57,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 02:50:57,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 02:50:57,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 02:50:57,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 02:50:57,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 02:50:57,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 02:50:57,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 02:50:57,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 02:50:57,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 02:50:57,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 02:50:57,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 02:50:57,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 02:50:57,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 02:50:57,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 02:50:57,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 02:50:57,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 02:50:57,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 02:50:57,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 02:50:57,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 02:50:57,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 02:50:57,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 02:50:57,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 02:50:57,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 02:50:57,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 02:50:57,747 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 02:50:57,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 02:50:57,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 02:50:57,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 02:50:57,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 02:50:57,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 02:50:57,750 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 02:50:57,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 02:50:57,750 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 02:50:57,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 02:50:57,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 02:50:57,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 02:50:57,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 02:50:57,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 02:50:57,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 02:50:57,752 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 02:50:57,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 02:50:57,752 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 02:50:57,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 02:50:57,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 02:50:57,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 02:50:57,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 02:50:57,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 02:50:57,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 02:50:57,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 02:50:57,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 02:50:57,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 02:50:57,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 02:50:57,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 02:50:57,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 02:50:57,754 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 248b2d90a91115122eed8c2bc3ad2e8879fe9067 [2021-08-29 02:50:58,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 02:50:58,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 02:50:58,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 02:50:58,050 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 02:50:58,050 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 02:50:58,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss3f.c [2021-08-29 02:50:58,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93c9ed7e5/efe2c78eaf244e839cbcce77d816f9dc/FLAG47a6a6af6 [2021-08-29 02:50:58,483 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 02:50:58,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss3f.c [2021-08-29 02:50:58,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93c9ed7e5/efe2c78eaf244e839cbcce77d816f9dc/FLAG47a6a6af6 [2021-08-29 02:50:58,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93c9ed7e5/efe2c78eaf244e839cbcce77d816f9dc [2021-08-29 02:50:58,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 02:50:58,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 02:50:58,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 02:50:58,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 02:50:58,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 02:50:58,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7542ab49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58, skipping insertion in model container [2021-08-29 02:50:58,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 02:50:58,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 02:50:58,628 WARN L228 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/ss3f.c[587,600] [2021-08-29 02:50:58,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 02:50:58,655 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 02:50:58,675 WARN L228 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/ss3f.c[587,600] [2021-08-29 02:50:58,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 02:50:58,707 INFO L208 MainTranslator]: Completed translation [2021-08-29 02:50:58,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58 WrapperNode [2021-08-29 02:50:58,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 02:50:58,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 02:50:58,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 02:50:58,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 02:50:58,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 02:50:58,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 02:50:58,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 02:50:58,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 02:50:58,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 02:50:58,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 02:50:58,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 02:50:58,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 02:50:58,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58" (1/1) ... [2021-08-29 02:50:58,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 02:50:58,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 02:50:58,806 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) [2021-08-29 02:50:58,839 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 [2021-08-29 02:50:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 02:50:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 02:50:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 02:50:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-29 02:50:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 02:50:58,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 02:50:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 02:50:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 02:50:59,023 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 02:50:59,024 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-08-29 02:50:59,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:50:59 BoogieIcfgContainer [2021-08-29 02:50:59,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 02:50:59,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 02:50:59,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 02:50:59,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 02:50:59,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:50:58" (1/3) ... [2021-08-29 02:50:59,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eac93b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:50:59, skipping insertion in model container [2021-08-29 02:50:59,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:50:58" (2/3) ... [2021-08-29 02:50:59,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eac93b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:50:59, skipping insertion in model container [2021-08-29 02:50:59,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:50:59" (3/3) ... [2021-08-29 02:50:59,031 INFO L111 eAbstractionObserver]: Analyzing ICFG ss3f.c [2021-08-29 02:50:59,037 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 02:50:59,037 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 02:50:59,076 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 02:50:59,082 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, mConcurrency=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 [2021-08-29 02:50:59,082 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 02:50:59,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 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) [2021-08-29 02:50:59,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 02:50:59,115 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 02:50:59,115 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 02:50:59,116 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 02:50:59,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 02:50:59,120 INFO L82 PathProgramCache]: Analyzing trace with hash 118053350, now seen corresponding path program 1 times [2021-08-29 02:50:59,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 02:50:59,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345313801] [2021-08-29 02:50:59,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:50:59,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 02:50:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 02:50:59,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 02:50:59,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 02:50:59,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345313801] [2021-08-29 02:50:59,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345313801] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 02:50:59,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 02:50:59,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 02:50:59,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283076563] [2021-08-29 02:50:59,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 02:50:59,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 02:50:59,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 02:50:59,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 02:50:59,313 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2021-08-29 02:50:59,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 02:50:59,419 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2021-08-29 02:50:59,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 02:50:59,427 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2021-08-29 02:50:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 02:50:59,432 INFO L225 Difference]: With dead ends: 50 [2021-08-29 02:50:59,432 INFO L226 Difference]: Without dead ends: 23 [2021-08-29 02:50:59,434 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 02:50:59,436 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.30ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.66ms IncrementalHoareTripleChecker+Time [2021-08-29 02:50:59,437 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.30ms Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 93.66ms Time] [2021-08-29 02:50:59,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-08-29 02:50:59,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-08-29 02:50:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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) [2021-08-29 02:50:59,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-08-29 02:50:59,456 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2021-08-29 02:50:59,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 02:50:59,456 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-08-29 02:50:59,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2021-08-29 02:50:59,457 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-08-29 02:50:59,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 02:50:59,457 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 02:50:59,457 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 02:50:59,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 02:50:59,458 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 02:50:59,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 02:50:59,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1065017552, now seen corresponding path program 1 times [2021-08-29 02:50:59,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 02:50:59,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217040237] [2021-08-29 02:50:59,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:50:59,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 02:50:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 02:50:59,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 02:50:59,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 02:50:59,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217040237] [2021-08-29 02:50:59,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217040237] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 02:50:59,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 02:50:59,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 02:50:59,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578333788] [2021-08-29 02:50:59,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 02:50:59,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 02:50:59,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 02:50:59,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 02:50:59,541 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-08-29 02:50:59,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 02:50:59,617 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2021-08-29 02:50:59,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 02:50:59,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2021-08-29 02:50:59,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 02:50:59,618 INFO L225 Difference]: With dead ends: 49 [2021-08-29 02:50:59,618 INFO L226 Difference]: Without dead ends: 33 [2021-08-29 02:50:59,619 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.10ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 02:50:59,620 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 33 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.85ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.39ms IncrementalHoareTripleChecker+Time [2021-08-29 02:50:59,620 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 0 Invalid, 62 Unknown, 0 Unchecked, 0.85ms Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 67.39ms Time] [2021-08-29 02:50:59,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-08-29 02:50:59,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2021-08-29 02:50:59,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 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) [2021-08-29 02:50:59,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-08-29 02:50:59,624 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2021-08-29 02:50:59,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 02:50:59,624 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-08-29 02:50:59,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-08-29 02:50:59,625 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-08-29 02:50:59,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-29 02:50:59,625 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 02:50:59,625 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 02:50:59,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 02:50:59,626 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 02:50:59,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 02:50:59,626 INFO L82 PathProgramCache]: Analyzing trace with hash 524088314, now seen corresponding path program 1 times [2021-08-29 02:50:59,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 02:50:59,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18686659] [2021-08-29 02:50:59,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:50:59,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 02:50:59,646 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-29 02:50:59,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [450998674] [2021-08-29 02:50:59,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:50:59,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 02:50:59,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 02:50:59,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 02:50:59,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 02:50:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 02:50:59,734 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 02:50:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 02:50:59,783 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 02:50:59,784 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 02:50:59,785 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 02:50:59,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 02:51:00,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 02:51:00,006 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 02:51:00,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:51:00 BoogieIcfgContainer [2021-08-29 02:51:00,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 02:51:00,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 02:51:00,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 02:51:00,032 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 02:51:00,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:50:59" (3/4) ... [2021-08-29 02:51:00,034 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 02:51:00,064 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 02:51:00,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 02:51:00,065 INFO L158 Benchmark]: Toolchain (without parser) took 1559.08ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 43.7MB in the beginning and 43.0MB in the end (delta: 689.4kB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-08-29 02:51:00,066 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 02:51:00,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.70ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 46.0MB in the end (delta: -2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 02:51:00,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.52ms. Allocated memory is still 62.9MB. Free memory was 46.0MB in the beginning and 44.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 02:51:00,067 INFO L158 Benchmark]: Boogie Preprocessor took 40.02ms. Allocated memory is still 62.9MB. Free memory was 44.1MB in the beginning and 42.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 02:51:00,067 INFO L158 Benchmark]: RCFGBuilder took 242.90ms. Allocated memory is still 62.9MB. Free memory was 42.7MB in the beginning and 32.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 02:51:00,068 INFO L158 Benchmark]: TraceAbstraction took 1005.42ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 32.5MB in the beginning and 45.8MB in the end (delta: -13.3MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2021-08-29 02:51:00,068 INFO L158 Benchmark]: Witness Printer took 32.57ms. Allocated memory is still 77.6MB. Free memory was 45.8MB in the beginning and 43.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 02:51:00,071 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.70ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 46.0MB in the end (delta: -2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.52ms. Allocated memory is still 62.9MB. Free memory was 46.0MB in the beginning and 44.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.02ms. Allocated memory is still 62.9MB. Free memory was 44.1MB in the beginning and 42.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 242.90ms. Allocated memory is still 62.9MB. Free memory was 42.7MB in the beginning and 32.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1005.42ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 32.5MB in the beginning and 45.8MB in the end (delta: -13.3MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 32.57ms. Allocated memory is still 77.6MB. Free memory was 45.8MB in the beginning and 43.0MB in the end (delta: 2.8MB). 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms 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) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i