./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i -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 ecbe73983438c23c42e2ed0d81896f3aad03ba3c52d7d8ba5ad74018d0035eda --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 00:57:33,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 00:57:33,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 00:57:33,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 00:57:33,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 00:57:33,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 00:57:33,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 00:57:33,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 00:57:33,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 00:57:33,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 00:57:33,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 00:57:33,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 00:57:33,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 00:57:33,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 00:57:33,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 00:57:33,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 00:57:33,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 00:57:33,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 00:57:33,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 00:57:33,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 00:57:33,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 00:57:33,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 00:57:33,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 00:57:33,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 00:57:33,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 00:57:33,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 00:57:33,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 00:57:33,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 00:57:33,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 00:57:33,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 00:57:33,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 00:57:33,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 00:57:33,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 00:57:33,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 00:57:33,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 00:57:33,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 00:57:33,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 00:57:33,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 00:57:33,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 00:57:33,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 00:57:33,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 00:57:33,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 00:57:33,296 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 00:57:33,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 00:57:33,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 00:57:33,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 00:57:33,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 00:57:33,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 00:57:33,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 00:57:33,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 00:57:33,298 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 00:57:33,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 00:57:33,299 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 00:57:33,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 00:57:33,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 00:57:33,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 00:57:33,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 00:57:33,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 00:57:33,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 00:57:33,300 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 00:57:33,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 00:57:33,300 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 00:57:33,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 00:57:33,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 00:57:33,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 00:57:33,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 00:57:33,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 00:57:33,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 00:57:33,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 00:57:33,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 00:57:33,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 00:57:33,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 00:57:33,302 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 00:57:33,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 00:57:33,302 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 00:57:33,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 00:57:33,302 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 00:57:33,303 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecbe73983438c23c42e2ed0d81896f3aad03ba3c52d7d8ba5ad74018d0035eda [2023-02-18 00:57:33,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 00:57:33,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 00:57:33,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 00:57:33,459 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 00:57:33,459 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 00:57:33,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i [2023-02-18 00:57:34,311 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 00:57:34,466 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 00:57:34,466 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i [2023-02-18 00:57:34,471 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee72c2e05/d6fbd7fed79647a6be009b8f19cac6d5/FLAG4ca492b27 [2023-02-18 00:57:34,480 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee72c2e05/d6fbd7fed79647a6be009b8f19cac6d5 [2023-02-18 00:57:34,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 00:57:34,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 00:57:34,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 00:57:34,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 00:57:34,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 00:57:34,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d41630b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34, skipping insertion in model container [2023-02-18 00:57:34,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 00:57:34,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 00:57:34,583 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i[873,886] [2023-02-18 00:57:34,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 00:57:34,595 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 00:57:34,602 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark05_conjunctive.i[873,886] [2023-02-18 00:57:34,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 00:57:34,611 INFO L208 MainTranslator]: Completed translation [2023-02-18 00:57:34,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34 WrapperNode [2023-02-18 00:57:34,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 00:57:34,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 00:57:34,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 00:57:34,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 00:57:34,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,634 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2023-02-18 00:57:34,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 00:57:34,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 00:57:34,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 00:57:34,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 00:57:34,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,653 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 00:57:34,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 00:57:34,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 00:57:34,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 00:57:34,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (1/1) ... [2023-02-18 00:57:34,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 00:57:34,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 00:57:34,719 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) [2023-02-18 00:57:34,745 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 [2023-02-18 00:57:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 00:57:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 00:57:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 00:57:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 00:57:34,804 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 00:57:34,806 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 00:57:34,917 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 00:57:34,920 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 00:57:34,928 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 00:57:34,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 12:57:34 BoogieIcfgContainer [2023-02-18 00:57:34,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 00:57:34,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 00:57:34,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 00:57:34,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 00:57:34,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 12:57:34" (1/3) ... [2023-02-18 00:57:34,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56652f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 12:57:34, skipping insertion in model container [2023-02-18 00:57:34,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 12:57:34" (2/3) ... [2023-02-18 00:57:34,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56652f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 12:57:34, skipping insertion in model container [2023-02-18 00:57:34,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 12:57:34" (3/3) ... [2023-02-18 00:57:34,936 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark05_conjunctive.i [2023-02-18 00:57:34,949 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 00:57:34,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 00:57:34,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 00:57:34,992 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6592bdc3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 00:57:34,992 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 00:57:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 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) [2023-02-18 00:57:34,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 00:57:35,000 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:57:35,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:57:35,001 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:57:35,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:57:35,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1807274183, now seen corresponding path program 1 times [2023-02-18 00:57:35,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:57:35,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270898668] [2023-02-18 00:57:35,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:57:35,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:57:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:57:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:57:35,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:57:35,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270898668] [2023-02-18 00:57:35,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270898668] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 00:57:35,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 00:57:35,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 00:57:35,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662112279] [2023-02-18 00:57:35,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 00:57:35,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 00:57:35,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:57:35,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 00:57:35,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 00:57:35,169 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-02-18 00:57:35,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:57:35,180 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-02-18 00:57:35,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 00:57:35,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2023-02-18 00:57:35,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:57:35,187 INFO L225 Difference]: With dead ends: 21 [2023-02-18 00:57:35,187 INFO L226 Difference]: Without dead ends: 9 [2023-02-18 00:57:35,189 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 [2023-02-18 00:57:35,192 INFO L413 NwaCegarLoop]: 15 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, 15 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 [2023-02-18 00:57:35,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 00:57:35,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-18 00:57:35,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-18 00:57:35,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2023-02-18 00:57:35,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-02-18 00:57:35,212 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2023-02-18 00:57:35,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:57:35,213 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-02-18 00:57:35,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-02-18 00:57:35,213 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-02-18 00:57:35,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 00:57:35,214 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:57:35,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:57:35,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 00:57:35,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:57:35,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:57:35,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1806976273, now seen corresponding path program 1 times [2023-02-18 00:57:35,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:57:35,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679082579] [2023-02-18 00:57:35,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:57:35,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:57:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:57:35,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:57:35,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:57:35,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679082579] [2023-02-18 00:57:35,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679082579] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 00:57:35,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 00:57:35,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 00:57:35,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386537913] [2023-02-18 00:57:35,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 00:57:35,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 00:57:35,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:57:35,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 00:57:35,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 00:57:35,302 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-02-18 00:57:35,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:57:35,312 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-02-18 00:57:35,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 00:57:35,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-02-18 00:57:35,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:57:35,313 INFO L225 Difference]: With dead ends: 14 [2023-02-18 00:57:35,313 INFO L226 Difference]: Without dead ends: 10 [2023-02-18 00:57:35,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 00:57:35,314 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 00:57:35,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 00:57:35,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-02-18 00:57:35,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-02-18 00:57:35,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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) [2023-02-18 00:57:35,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2023-02-18 00:57:35,317 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2023-02-18 00:57:35,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:57:35,317 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-02-18 00:57:35,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-02-18 00:57:35,318 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-02-18 00:57:35,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-18 00:57:35,318 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:57:35,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:57:35,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 00:57:35,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:57:35,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:57:35,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1387754644, now seen corresponding path program 1 times [2023-02-18 00:57:35,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:57:35,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676086919] [2023-02-18 00:57:35,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:57:35,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:57:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:57:35,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:57:35,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:57:35,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676086919] [2023-02-18 00:57:35,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676086919] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 00:57:35,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653419397] [2023-02-18 00:57:35,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:57:35,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:57:35,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 00:57:35,474 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) [2023-02-18 00:57:35,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 00:57:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:57:35,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 00:57:35,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 00:57:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:57:35,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 00:57:35,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:57:35,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653419397] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 00:57:35,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 00:57:35,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-02-18 00:57:35,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063800315] [2023-02-18 00:57:35,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 00:57:35,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 00:57:35,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:57:35,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 00:57:35,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-02-18 00:57:35,672 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2023-02-18 00:57:35,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:57:35,744 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2023-02-18 00:57:35,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 00:57:35,745 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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 9 [2023-02-18 00:57:35,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:57:35,745 INFO L225 Difference]: With dead ends: 19 [2023-02-18 00:57:35,745 INFO L226 Difference]: Without dead ends: 13 [2023-02-18 00:57:35,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-02-18 00:57:35,747 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 00:57:35,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 25 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 00:57:35,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-18 00:57:35,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-02-18 00:57:35,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2023-02-18 00:57:35,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2023-02-18 00:57:35,753 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2023-02-18 00:57:35,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:57:35,754 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2023-02-18 00:57:35,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2023-02-18 00:57:35,754 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-02-18 00:57:35,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 00:57:35,755 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 00:57:35,755 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 00:57:35,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 00:57:35,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:57:35,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 00:57:35,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 00:57:35,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2052272297, now seen corresponding path program 2 times [2023-02-18 00:57:35,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 00:57:35,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157425649] [2023-02-18 00:57:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 00:57:35,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 00:57:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 00:57:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:57:36,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 00:57:36,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157425649] [2023-02-18 00:57:36,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157425649] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 00:57:36,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594126680] [2023-02-18 00:57:36,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 00:57:36,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 00:57:36,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 00:57:36,093 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 00:57:36,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 00:57:36,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 00:57:36,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 00:57:36,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-18 00:57:36,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 00:57:36,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:57:36,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 00:57:36,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 00:57:36,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594126680] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 00:57:36,229 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 00:57:36,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2023-02-18 00:57:36,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797628861] [2023-02-18 00:57:36,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 00:57:36,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-18 00:57:36,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 00:57:36,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-18 00:57:36,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-02-18 00:57:36,231 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2023-02-18 00:57:36,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 00:57:36,286 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2023-02-18 00:57:36,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 00:57:36,286 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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 11 [2023-02-18 00:57:36,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 00:57:36,287 INFO L225 Difference]: With dead ends: 15 [2023-02-18 00:57:36,287 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 00:57:36,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 8 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2023-02-18 00:57:36,290 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 00:57:36,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 00:57:36,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 00:57:36,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 00:57:36,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-02-18 00:57:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 00:57:36,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2023-02-18 00:57:36,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 00:57:36,294 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 00:57:36,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2023-02-18 00:57:36,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 00:57:36,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 00:57:36,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 00:57:36,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 00:57:36,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-02-18 00:57:36,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 00:57:36,506 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 00:57:36,506 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2023-02-18 00:57:36,507 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2023-02-18 00:57:36,507 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 00:57:36,507 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 19 30) the Hoare annotation is: true [2023-02-18 00:57:36,507 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 00:57:36,507 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 00:57:36,507 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-02-18 00:57:36,508 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 24 27) the Hoare annotation is: (let ((.cse6 (+ (- 1) |ULTIMATE.start_main_~y~0#1|)) (.cse4 (+ (- 1) |ULTIMATE.start_main_~n~0#1|))) (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (<= .cse6 .cse4)) (.cse3 (<= |ULTIMATE.start_main_~y~0#1| .cse4)) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| (+ .cse6 1))) (.cse5 (<= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| 1)))) (or (and .cse0 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) .cse1 .cse2) (and (or (and .cse0 .cse3) (and .cse0 (<= |ULTIMATE.start_main_~x~0#1| .cse4) .cse3)) .cse1 .cse3 .cse2 .cse5) (and .cse1 .cse3 .cse2 .cse5)))) [2023-02-18 00:57:36,508 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2023-02-18 00:57:36,508 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 27) no Hoare annotation was computed. [2023-02-18 00:57:36,508 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-02-18 00:57:36,508 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2023-02-18 00:57:36,510 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-02-18 00:57:36,512 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 00:57:36,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 12:57:36 BoogieIcfgContainer [2023-02-18 00:57:36,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 00:57:36,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 00:57:36,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 00:57:36,527 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 00:57:36,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 12:57:34" (3/4) ... [2023-02-18 00:57:36,529 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 00:57:36,536 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-18 00:57:36,537 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-02-18 00:57:36,537 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 00:57:36,537 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 00:57:36,568 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 00:57:36,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 00:57:36,569 INFO L158 Benchmark]: Toolchain (without parser) took 2086.28ms. Allocated memory is still 136.3MB. Free memory was 107.2MB in the beginning and 107.9MB in the end (delta: -696.3kB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2023-02-18 00:57:36,569 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 00:57:36,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 128.73ms. Allocated memory is still 136.3MB. Free memory was 106.8MB in the beginning and 96.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 00:57:36,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.76ms. Allocated memory is still 136.3MB. Free memory was 96.8MB in the beginning and 95.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 00:57:36,570 INFO L158 Benchmark]: Boogie Preprocessor took 25.01ms. Allocated memory is still 136.3MB. Free memory was 95.6MB in the beginning and 94.4MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-18 00:57:36,570 INFO L158 Benchmark]: RCFGBuilder took 269.75ms. Allocated memory is still 136.3MB. Free memory was 94.4MB in the beginning and 85.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 00:57:36,570 INFO L158 Benchmark]: TraceAbstraction took 1594.31ms. Allocated memory is still 136.3MB. Free memory was 84.4MB in the beginning and 50.0MB in the end (delta: 34.4MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2023-02-18 00:57:36,570 INFO L158 Benchmark]: Witness Printer took 42.27ms. Allocated memory is still 136.3MB. Free memory was 50.0MB in the beginning and 107.9MB in the end (delta: -57.8MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2023-02-18 00:57:36,572 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 128.73ms. Allocated memory is still 136.3MB. Free memory was 106.8MB in the beginning and 96.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.76ms. Allocated memory is still 136.3MB. Free memory was 96.8MB in the beginning and 95.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.01ms. Allocated memory is still 136.3MB. Free memory was 95.6MB in the beginning and 94.4MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 269.75ms. Allocated memory is still 136.3MB. Free memory was 94.4MB in the beginning and 85.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1594.31ms. Allocated memory is still 136.3MB. Free memory was 84.4MB in the beginning and 50.0MB in the end (delta: 34.4MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * Witness Printer took 42.27ms. Allocated memory is still 136.3MB. Free memory was 50.0MB in the beginning and 107.9MB in the end (delta: -57.8MB). Peak memory consumption was 4.8MB. 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 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 32 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 23 SyntacticMatches, 12 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 97 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 674 SizeOfPredicates, 14 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 6/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((((x <= y && y <= x) && -1 + y <= -1 + n) && x <= -1 + y + 1) || ((((((x <= y && y <= -1 + n) || ((x <= y && x <= -1 + n) && y <= -1 + n)) && -1 + y <= -1 + n) && y <= -1 + n) && x <= -1 + y + 1) && x <= y + 1)) || (((-1 + y <= -1 + n && y <= -1 + n) && x <= -1 + y + 1) && x <= y + 1) RESULT: Ultimate proved your program to be correct! [2023-02-18 00:57:36,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE