./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/mono-crafted_12.c --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/loops-crafted-1/mono-crafted_12.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 8b3f0af40c26ea2441fd1db040e489b1eca9157048527a1847377fc5afef038a --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-17 01:14:56,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 01:14:56,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 01:14:56,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 01:14:56,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 01:14:56,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 01:14:56,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 01:14:56,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 01:14:57,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 01:14:57,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 01:14:57,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 01:14:57,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 01:14:57,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 01:14:57,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 01:14:57,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 01:14:57,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 01:14:57,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 01:14:57,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 01:14:57,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 01:14:57,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 01:14:57,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 01:14:57,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 01:14:57,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 01:14:57,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 01:14:57,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 01:14:57,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 01:14:57,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 01:14:57,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 01:14:57,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 01:14:57,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 01:14:57,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 01:14:57,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 01:14:57,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 01:14:57,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 01:14:57,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 01:14:57,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 01:14:57,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 01:14:57,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 01:14:57,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 01:14:57,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 01:14:57,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 01:14:57,040 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 01:14:57,061 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 01:14:57,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 01:14:57,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 01:14:57,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 01:14:57,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 01:14:57,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 01:14:57,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 01:14:57,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 01:14:57,067 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 01:14:57,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 01:14:57,068 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 01:14:57,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 01:14:57,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 01:14:57,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 01:14:57,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 01:14:57,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 01:14:57,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 01:14:57,069 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 01:14:57,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 01:14:57,069 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 01:14:57,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 01:14:57,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 01:14:57,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 01:14:57,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 01:14:57,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 01:14:57,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 01:14:57,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 01:14:57,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 01:14:57,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 01:14:57,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 01:14:57,071 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 01:14:57,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 01:14:57,071 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 01:14:57,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 01:14:57,071 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 01:14:57,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b3f0af40c26ea2441fd1db040e489b1eca9157048527a1847377fc5afef038a [2023-02-17 01:14:57,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 01:14:57,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 01:14:57,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 01:14:57,303 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 01:14:57,304 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 01:14:57,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/mono-crafted_12.c [2023-02-17 01:14:58,187 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 01:14:58,320 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 01:14:58,320 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/mono-crafted_12.c [2023-02-17 01:14:58,324 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0500bf822/b766b56628944cba95aefda79374496d/FLAGae00cdce6 [2023-02-17 01:14:58,333 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0500bf822/b766b56628944cba95aefda79374496d [2023-02-17 01:14:58,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 01:14:58,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 01:14:58,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 01:14:58,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 01:14:58,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 01:14:58,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d90f42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58, skipping insertion in model container [2023-02-17 01:14:58,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 01:14:58,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 01:14:58,443 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/loops-crafted-1/mono-crafted_12.c[319,332] [2023-02-17 01:14:58,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 01:14:58,455 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 01:14:58,462 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/loops-crafted-1/mono-crafted_12.c[319,332] [2023-02-17 01:14:58,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 01:14:58,474 INFO L208 MainTranslator]: Completed translation [2023-02-17 01:14:58,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58 WrapperNode [2023-02-17 01:14:58,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 01:14:58,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 01:14:58,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 01:14:58,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 01:14:58,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,503 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2023-02-17 01:14:58,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 01:14:58,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 01:14:58,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 01:14:58,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 01:14:58,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 01:14:58,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 01:14:58,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 01:14:58,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 01:14:58,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (1/1) ... [2023-02-17 01:14:58,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 01:14:58,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 01:14:58,544 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) [2023-02-17 01:14:58,553 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 [2023-02-17 01:14:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 01:14:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 01:14:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 01:14:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 01:14:58,623 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 01:14:58,625 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 01:14:58,755 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 01:14:58,759 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 01:14:58,759 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 01:14:58,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 01:14:58 BoogieIcfgContainer [2023-02-17 01:14:58,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 01:14:58,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 01:14:58,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 01:14:58,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 01:14:58,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 01:14:58" (1/3) ... [2023-02-17 01:14:58,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665dc3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 01:14:58, skipping insertion in model container [2023-02-17 01:14:58,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:14:58" (2/3) ... [2023-02-17 01:14:58,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665dc3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 01:14:58, skipping insertion in model container [2023-02-17 01:14:58,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 01:14:58" (3/3) ... [2023-02-17 01:14:58,766 INFO L112 eAbstractionObserver]: Analyzing ICFG mono-crafted_12.c [2023-02-17 01:14:58,777 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 01:14:58,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 01:14:58,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 01:14:58,823 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;@6d5f5957, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 01:14:58,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 01:14:58,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2023-02-17 01:14:58,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 01:14:58,831 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 01:14:58,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 01:14:58,832 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 01:14:58,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 01:14:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash 889968487, now seen corresponding path program 1 times [2023-02-17 01:14:58,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 01:14:58,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002825489] [2023-02-17 01:14:58,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:14:58,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 01:14:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:14:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:14:58,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 01:14:58,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002825489] [2023-02-17 01:14:58,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002825489] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 01:14:58,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 01:14:58,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 01:14:58,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410088406] [2023-02-17 01:14:58,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 01:14:58,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-17 01:14:58,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 01:14:58,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 01:14:58,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 01:14:58,950 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-02-17 01:14:58,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 01:14:58,959 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2023-02-17 01:14:58,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 01:14:58,966 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-02-17 01:14:58,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 01:14:58,971 INFO L225 Difference]: With dead ends: 21 [2023-02-17 01:14:58,971 INFO L226 Difference]: Without dead ends: 9 [2023-02-17 01:14:58,973 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 [2023-02-17 01:14:58,977 INFO L413 NwaCegarLoop]: 14 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, 14 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 [2023-02-17 01:14:58,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 01:14:58,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-17 01:14:58,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-17 01:14:58,997 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) [2023-02-17 01:14:58,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-02-17 01:14:58,999 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2023-02-17 01:14:58,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 01:14:58,999 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-02-17 01:14:58,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-02-17 01:14:58,999 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-02-17 01:14:59,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 01:14:59,000 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 01:14:59,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 01:14:59,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 01:14:59,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 01:14:59,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 01:14:59,001 INFO L85 PathProgramCache]: Analyzing trace with hash 889640786, now seen corresponding path program 1 times [2023-02-17 01:14:59,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 01:14:59,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753414676] [2023-02-17 01:14:59,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:14:59,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 01:14:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:14:59,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:14:59,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 01:14:59,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753414676] [2023-02-17 01:14:59,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753414676] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 01:14:59,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 01:14:59,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 01:14:59,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153923406] [2023-02-17 01:14:59,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 01:14:59,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 01:14:59,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 01:14:59,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 01:14:59,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 01:14:59,116 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-17 01:14:59,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 01:14:59,153 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2023-02-17 01:14:59,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 01:14:59,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-02-17 01:14:59,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 01:14:59,154 INFO L225 Difference]: With dead ends: 19 [2023-02-17 01:14:59,154 INFO L226 Difference]: Without dead ends: 12 [2023-02-17 01:14:59,154 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 [2023-02-17 01:14:59,155 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 01:14:59,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 01:14:59,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-02-17 01:14:59,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-02-17 01:14:59,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2023-02-17 01:14:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-02-17 01:14:59,159 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 6 [2023-02-17 01:14:59,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 01:14:59,159 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-02-17 01:14:59,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-17 01:14:59,160 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-02-17 01:14:59,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-17 01:14:59,160 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 01:14:59,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 01:14:59,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 01:14:59,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 01:14:59,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 01:14:59,161 INFO L85 PathProgramCache]: Analyzing trace with hash 641725625, now seen corresponding path program 1 times [2023-02-17 01:14:59,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 01:14:59,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535744854] [2023-02-17 01:14:59,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:14:59,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 01:14:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:14:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:14:59,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 01:14:59,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535744854] [2023-02-17 01:14:59,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535744854] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 01:14:59,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098611336] [2023-02-17 01:14:59,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:14:59,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 01:14:59,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 01:14:59,273 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) [2023-02-17 01:14:59,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 01:14:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:14:59,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 01:14:59,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 01:14:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 01:14:59,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 01:14:59,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098611336] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 01:14:59,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 01:14:59,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-02-17 01:14:59,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034775688] [2023-02-17 01:14:59,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 01:14:59,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 01:14:59,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 01:14:59,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 01:14:59,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-02-17 01:14:59,394 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-02-17 01:14:59,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 01:14:59,417 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2023-02-17 01:14:59,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 01:14:59,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 [2023-02-17 01:14:59,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 01:14:59,418 INFO L225 Difference]: With dead ends: 18 [2023-02-17 01:14:59,418 INFO L226 Difference]: Without dead ends: 14 [2023-02-17 01:14:59,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-02-17 01:14:59,423 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22 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 [2023-02-17 01:14:59,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 01:14:59,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-17 01:14:59,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-17 01:14:59,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 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) [2023-02-17 01:14:59,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-02-17 01:14:59,428 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 9 [2023-02-17 01:14:59,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 01:14:59,428 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-02-17 01:14:59,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-02-17 01:14:59,429 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-02-17 01:14:59,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-17 01:14:59,429 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 01:14:59,429 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 01:14:59,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-17 01:14:59,630 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 [2023-02-17 01:14:59,630 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 01:14:59,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 01:14:59,631 INFO L85 PathProgramCache]: Analyzing trace with hash -2007312204, now seen corresponding path program 1 times [2023-02-17 01:14:59,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 01:14:59,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637651633] [2023-02-17 01:14:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:14:59,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 01:14:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:14:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:14:59,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 01:14:59,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637651633] [2023-02-17 01:14:59,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637651633] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 01:14:59,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042759339] [2023-02-17 01:14:59,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:14:59,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 01:14:59,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 01:14:59,784 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) [2023-02-17 01:14:59,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 01:14:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:14:59,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-17 01:14:59,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 01:14:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-17 01:14:59,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 01:14:59,922 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-17 01:14:59,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042759339] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-17 01:14:59,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-02-17 01:14:59,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 5] total 9 [2023-02-17 01:14:59,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116607937] [2023-02-17 01:14:59,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 01:14:59,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 01:14:59,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 01:14:59,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 01:14:59,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-02-17 01:14:59,927 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-02-17 01:14:59,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 01:14:59,943 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2023-02-17 01:14:59,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 01:14:59,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Word has length 12 [2023-02-17 01:14:59,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 01:14:59,945 INFO L225 Difference]: With dead ends: 14 [2023-02-17 01:14:59,945 INFO L226 Difference]: Without dead ends: 0 [2023-02-17 01:14:59,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-02-17 01:14:59,946 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 01:14:59,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 01:14:59,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-17 01:14:59,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-17 01:14:59,950 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) [2023-02-17 01:14:59,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-17 01:14:59,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-02-17 01:14:59,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 01:14:59,951 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 01:14:59,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-02-17 01:14:59,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-17 01:14:59,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-17 01:14:59,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-17 01:14:59,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-17 01:15:00,158 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 [2023-02-17 01:15:00,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-17 01:15:00,168 INFO L899 garLoopResultBuilder]: For program point L4-3(line 4) no Hoare annotation was computed. [2023-02-17 01:15:00,168 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-17 01:15:00,168 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2023-02-17 01:15:00,168 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-17 01:15:00,168 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 11 12) no Hoare annotation was computed. [2023-02-17 01:15:00,169 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 6 17) the Hoare annotation is: true [2023-02-17 01:15:00,169 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-17 01:15:00,169 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-17 01:15:00,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2023-02-17 01:15:00,171 INFO L895 garLoopResultBuilder]: At program point L10-2(lines 10 14) the Hoare annotation is: (let ((.cse9 (< (mod |ULTIMATE.start_main_~z~0#1| 4294967296) 0)) (.cse11 (mod |ULTIMATE.start_main_~z~0#1| 2))) (let ((.cse5 (= (mod .cse11 4294967296) 0)) (.cse6 (not .cse9)) (.cse7 (= .cse11 0)) (.cse10 (= (mod (+ .cse11 4294967294) 4294967296) 0))) (let ((.cse4 (= |ULTIMATE.start_main_~z~0#1| 0)) (.cse0 (or (not .cse5) .cse6 .cse7 .cse10)) (.cse1 (or .cse5 (let ((.cse8 (not .cse7))) (and (or (and (or .cse6 .cse7) .cse8 .cse9) .cse10) (or (not .cse10) (and .cse8 .cse9))))))) (or (and .cse0 .cse1) (let ((.cse2 (div |ULTIMATE.start_main_~y~0#1| 4294967296))) (let ((.cse3 (<= (+ .cse2 (* (- 1) (div |ULTIMATE.start_main_~x~0#1| 4294967296))) 0))) (and (or (<= |ULTIMATE.start_main_~y~0#1| 10000000) (<= .cse2 0) .cse3) (or (not .cse3) (<= 0 (+ (- 10000000) |ULTIMATE.start_main_~y~0#1|))) .cse4 .cse0 (= |ULTIMATE.start_main_~x~0#1| 0) .cse1))) (and .cse4 .cse0 .cse1))))) [2023-02-17 01:15:00,173 INFO L899 garLoopResultBuilder]: For program point L10-3(lines 10 14) no Hoare annotation was computed. [2023-02-17 01:15:00,173 INFO L899 garLoopResultBuilder]: For program point L4(line 4) no Hoare annotation was computed. [2023-02-17 01:15:00,173 INFO L899 garLoopResultBuilder]: For program point L4-1(line 4) no Hoare annotation was computed. [2023-02-17 01:15:00,175 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-17 01:15:00,177 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 01:15:00,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 01:15:00 BoogieIcfgContainer [2023-02-17 01:15:00,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 01:15:00,201 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 01:15:00,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 01:15:00,204 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 01:15:00,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 01:14:58" (3/4) ... [2023-02-17 01:15:00,207 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-17 01:15:00,213 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-17 01:15:00,213 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-17 01:15:00,213 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-17 01:15:00,213 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-17 01:15:00,233 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-17 01:15:00,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 01:15:00,234 INFO L158 Benchmark]: Toolchain (without parser) took 1898.27ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 76.9MB in the beginning and 117.8MB in the end (delta: -40.9MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-02-17 01:15:00,234 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory was 105.2MB in the beginning and 105.2MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 01:15:00,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 137.91ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 76.6MB in the beginning and 156.6MB in the end (delta: -80.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-02-17 01:15:00,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.96ms. Allocated memory is still 186.6MB. Free memory was 156.6MB in the beginning and 158.7MB in the end (delta: -2.1MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-02-17 01:15:00,235 INFO L158 Benchmark]: Boogie Preprocessor took 18.23ms. Allocated memory is still 186.6MB. Free memory was 158.7MB in the beginning and 157.8MB in the end (delta: 838.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 01:15:00,235 INFO L158 Benchmark]: RCFGBuilder took 237.54ms. Allocated memory is still 186.6MB. Free memory was 157.8MB in the beginning and 148.2MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-17 01:15:00,235 INFO L158 Benchmark]: TraceAbstraction took 1437.70ms. Allocated memory is still 186.6MB. Free memory was 147.4MB in the beginning and 119.9MB in the end (delta: 27.5MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2023-02-17 01:15:00,236 INFO L158 Benchmark]: Witness Printer took 32.71ms. Allocated memory is still 186.6MB. Free memory was 119.9MB in the beginning and 117.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 01:15:00,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 138.4MB. Free memory was 105.2MB in the beginning and 105.2MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 137.91ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 76.6MB in the beginning and 156.6MB in the end (delta: -80.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.96ms. Allocated memory is still 186.6MB. Free memory was 156.6MB in the beginning and 158.7MB in the end (delta: -2.1MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.23ms. Allocated memory is still 186.6MB. Free memory was 158.7MB in the beginning and 157.8MB in the end (delta: 838.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 237.54ms. Allocated memory is still 186.6MB. Free memory was 157.8MB in the beginning and 148.2MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1437.70ms. Allocated memory is still 186.6MB. Free memory was 147.4MB in the beginning and 119.9MB in the end (delta: 27.5MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Witness Printer took 32.71ms. Allocated memory is still 186.6MB. Free memory was 119.9MB in the beginning and 117.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4]: 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 35 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=3, InterpolantAutomatonStates: 13, 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, 6 NumberOfFragments, 337 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 1050 SizeOfPredicates, 6 NumberOfNonLiveVariables, 92 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 11/17 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: 10]: Loop Invariant Derived loop invariant: (((((!(z % 2 % 4294967296 == 0) || !(z % 4294967296 < 0)) || z % 2 == 0) || (z % 2 + 4294967294) % 4294967296 == 0) && (z % 2 % 4294967296 == 0 || (((((!(z % 4294967296 < 0) || z % 2 == 0) && !(z % 2 == 0)) && z % 4294967296 < 0) || (z % 2 + 4294967294) % 4294967296 == 0) && (!((z % 2 + 4294967294) % 4294967296 == 0) || (!(z % 2 == 0) && z % 4294967296 < 0))))) || (((((((y <= 10000000 || y / 4294967296 <= 0) || y / 4294967296 + -1 * (x / 4294967296) <= 0) && (!(y / 4294967296 + -1 * (x / 4294967296) <= 0) || 0 <= -10000000 + y)) && z == 0) && (((!(z % 2 % 4294967296 == 0) || !(z % 4294967296 < 0)) || z % 2 == 0) || (z % 2 + 4294967294) % 4294967296 == 0)) && x == 0) && (z % 2 % 4294967296 == 0 || (((((!(z % 4294967296 < 0) || z % 2 == 0) && !(z % 2 == 0)) && z % 4294967296 < 0) || (z % 2 + 4294967294) % 4294967296 == 0) && (!((z % 2 + 4294967294) % 4294967296 == 0) || (!(z % 2 == 0) && z % 4294967296 < 0)))))) || ((z == 0 && (((!(z % 2 % 4294967296 == 0) || !(z % 4294967296 < 0)) || z % 2 == 0) || (z % 2 + 4294967294) % 4294967296 == 0)) && (z % 2 % 4294967296 == 0 || (((((!(z % 4294967296 < 0) || z % 2 == 0) && !(z % 2 == 0)) && z % 4294967296 < 0) || (z % 2 + 4294967294) % 4294967296 == 0) && (!((z % 2 + 4294967294) % 4294967296 == 0) || (!(z % 2 == 0) && z % 4294967296 < 0))))) - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-02-17 01:15:00,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE