./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/count_by_1_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-new/count_by_1_variant.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 8873a5afb79ec0e8798e8f1423b386b30ed09073bcea97b4a19d8bc56ced7206 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 15:39:18,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 15:39:18,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 15:39:18,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 15:39:18,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 15:39:18,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 15:39:18,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 15:39:18,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 15:39:18,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 15:39:18,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 15:39:18,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 15:39:18,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 15:39:18,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 15:39:18,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 15:39:18,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 15:39:18,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 15:39:18,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 15:39:18,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 15:39:18,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 15:39:18,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 15:39:18,223 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 15:39:18,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 15:39:18,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 15:39:18,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 15:39:18,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 15:39:18,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 15:39:18,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 15:39:18,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 15:39:18,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 15:39:18,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 15:39:18,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 15:39:18,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 15:39:18,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 15:39:18,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 15:39:18,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 15:39:18,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 15:39:18,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 15:39:18,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 15:39:18,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 15:39:18,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 15:39:18,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 15:39:18,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 15:39:18,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 15:39:18,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 15:39:18,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 15:39:18,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 15:39:18,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 15:39:18,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 15:39:18,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 15:39:18,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 15:39:18,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 15:39:18,268 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 15:39:18,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 15:39:18,269 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 15:39:18,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 15:39:18,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 15:39:18,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 15:39:18,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 15:39:18,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 15:39:18,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 15:39:18,270 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 15:39:18,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 15:39:18,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 15:39:18,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 15:39:18,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 15:39:18,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 15:39:18,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 15:39:18,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 15:39:18,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 15:39:18,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 15:39:18,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 15:39:18,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 15:39:18,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 15:39:18,273 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 15:39:18,273 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 15:39:18,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 15:39:18,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8873a5afb79ec0e8798e8f1423b386b30ed09073bcea97b4a19d8bc56ced7206 [2022-07-13 15:39:18,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 15:39:18,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 15:39:18,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 15:39:18,498 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 15:39:18,498 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 15:39:18,499 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-new/count_by_1_variant.i [2022-07-13 15:39:18,545 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3909ac256/a6cb56dc69d64ca7966751e24cdf00ec/FLAG1b412a5ad [2022-07-13 15:39:18,974 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 15:39:18,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/count_by_1_variant.i [2022-07-13 15:39:18,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3909ac256/a6cb56dc69d64ca7966751e24cdf00ec/FLAG1b412a5ad [2022-07-13 15:39:19,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3909ac256/a6cb56dc69d64ca7966751e24cdf00ec [2022-07-13 15:39:19,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 15:39:19,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 15:39:19,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 15:39:19,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 15:39:19,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 15:39:19,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129953be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19, skipping insertion in model container [2022-07-13 15:39:19,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 15:39:19,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 15:39:19,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/count_by_1_variant.i[891,904] [2022-07-13 15:39:19,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 15:39:19,624 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 15:39:19,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/count_by_1_variant.i[891,904] [2022-07-13 15:39:19,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 15:39:19,663 INFO L208 MainTranslator]: Completed translation [2022-07-13 15:39:19,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19 WrapperNode [2022-07-13 15:39:19,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 15:39:19,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 15:39:19,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 15:39:19,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 15:39:19,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,709 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-07-13 15:39:19,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 15:39:19,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 15:39:19,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 15:39:19,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 15:39:19,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 15:39:19,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 15:39:19,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 15:39:19,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 15:39:19,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19" (1/1) ... [2022-07-13 15:39:19,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 15:39:19,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:39:19,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 15:39:19,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 15:39:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 15:39:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 15:39:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 15:39:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 15:39:19,839 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 15:39:19,841 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 15:39:19,914 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 15:39:19,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 15:39:19,920 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 15:39:19,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:39:19 BoogieIcfgContainer [2022-07-13 15:39:19,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 15:39:19,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 15:39:19,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 15:39:19,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 15:39:19,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 03:39:19" (1/3) ... [2022-07-13 15:39:19,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2655aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 03:39:19, skipping insertion in model container [2022-07-13 15:39:19,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:19" (2/3) ... [2022-07-13 15:39:19,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2655aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 03:39:19, skipping insertion in model container [2022-07-13 15:39:19,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:39:19" (3/3) ... [2022-07-13 15:39:19,929 INFO L111 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2022-07-13 15:39:19,937 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 15:39:19,938 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 15:39:19,976 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 15:39:19,983 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@e825bb7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7e5f321a [2022-07-13 15:39:19,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 15:39:19,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) 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) [2022-07-13 15:39:19,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 15:39:19,997 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:39:19,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 15:39:19,998 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:39:20,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:39:20,003 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-07-13 15:39:20,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:39:20,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197105657] [2022-07-13 15:39:20,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:39:20,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:39:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:39:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:39:20,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:39:20,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197105657] [2022-07-13 15:39:20,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197105657] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 15:39:20,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 15:39:20,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 15:39:20,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147193952] [2022-07-13 15:39:20,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 15:39:20,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 15:39:20,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:39:20,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 15:39:20,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 15:39:20,216 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:39:20,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:39:20,257 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2022-07-13 15:39:20,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 15:39:20,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-07-13 15:39:20,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:39:20,263 INFO L225 Difference]: With dead ends: 30 [2022-07-13 15:39:20,264 INFO L226 Difference]: Without dead ends: 12 [2022-07-13 15:39:20,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 15:39:20,268 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 15:39:20,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 24 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:39:20,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-07-13 15:39:20,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2022-07-13 15:39:20,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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) [2022-07-13 15:39:20,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-07-13 15:39:20,290 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2022-07-13 15:39:20,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:39:20,291 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-07-13 15:39:20,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:39:20,292 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-07-13 15:39:20,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 15:39:20,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:39:20,292 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:39:20,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 15:39:20,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:39:20,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:39:20,295 INFO L85 PathProgramCache]: Analyzing trace with hash -185344033, now seen corresponding path program 1 times [2022-07-13 15:39:20,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:39:20,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199835176] [2022-07-13 15:39:20,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:39:20,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:39:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:39:20,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:39:20,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:39:20,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199835176] [2022-07-13 15:39:20,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199835176] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 15:39:20,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277432336] [2022-07-13 15:39:20,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:39:20,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:39:20,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:39:20,383 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) [2022-07-13 15:39:20,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 15:39:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:39:20,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 15:39:20,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 15:39:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:39:20,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 15:39:20,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:39:20,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277432336] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 15:39:20,544 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 15:39:20,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-13 15:39:20,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068855120] [2022-07-13 15:39:20,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 15:39:20,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 15:39:20,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:39:20,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 15:39:20,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-13 15:39:20,548 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:39:20,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:39:20,613 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-07-13 15:39:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 15:39:20,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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 [2022-07-13 15:39:20,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:39:20,614 INFO L225 Difference]: With dead ends: 17 [2022-07-13 15:39:20,614 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 15:39:20,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-07-13 15:39:20,616 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 15:39:20,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 10 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:39:20,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 15:39:20,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 15:39:20,619 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) [2022-07-13 15:39:20,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 15:39:20,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-07-13 15:39:20,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:39:20,620 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 15:39:20,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 15:39:20,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 15:39:20,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 15:39:20,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 15:39:20,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 15:39:20,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:39:20,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 15:39:20,891 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 15:39:20,891 INFO L895 garLoopResultBuilder]: At program point L29(lines 24 30) the Hoare annotation is: (<= |ULTIMATE.start_main_~i~0#1| 1000000) [2022-07-13 15:39:20,891 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-07-13 15:39:20,891 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 15:39:20,891 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 15:39:20,891 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 15:39:20,891 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2022-07-13 15:39:20,892 INFO L899 garLoopResultBuilder]: For program point L26-2(lines 26 28) no Hoare annotation was computed. [2022-07-13 15:39:20,892 INFO L895 garLoopResultBuilder]: At program point L26-3(lines 26 28) the Hoare annotation is: (or (and (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= |ULTIMATE.start_main_~i~0#1| 1000000)) (= |ULTIMATE.start_main_~i~0#1| 0)) [2022-07-13 15:39:20,892 INFO L899 garLoopResultBuilder]: For program point L26-4(lines 26 28) no Hoare annotation was computed. [2022-07-13 15:39:20,892 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2022-07-13 15:39:20,892 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~0#1| 999999) (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|)) [2022-07-13 15:39:20,894 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 15:39:20,897 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 15:39:20,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 03:39:20 BoogieIcfgContainer [2022-07-13 15:39:20,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 15:39:20,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 15:39:20,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 15:39:20,915 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 15:39:20,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:39:19" (3/4) ... [2022-07-13 15:39:20,918 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 15:39:20,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-13 15:39:20,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-13 15:39:20,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 15:39:20,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 15:39:20,941 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 15:39:20,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 15:39:20,942 INFO L158 Benchmark]: Toolchain (without parser) took 1513.56ms. Allocated memory is still 107.0MB. Free memory was 75.2MB in the beginning and 67.0MB in the end (delta: 8.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-07-13 15:39:20,942 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 15:39:20,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.26ms. Allocated memory is still 107.0MB. Free memory was 74.9MB in the beginning and 84.1MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 15:39:20,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.83ms. Allocated memory is still 107.0MB. Free memory was 83.7MB in the beginning and 82.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 15:39:20,943 INFO L158 Benchmark]: Boogie Preprocessor took 17.26ms. Allocated memory is still 107.0MB. Free memory was 82.4MB in the beginning and 81.6MB in the end (delta: 813.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 15:39:20,943 INFO L158 Benchmark]: RCFGBuilder took 192.61ms. Allocated memory is still 107.0MB. Free memory was 81.6MB in the beginning and 73.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 15:39:20,944 INFO L158 Benchmark]: TraceAbstraction took 984.74ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 69.1MB in the end (delta: 3.6MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-07-13 15:39:20,944 INFO L158 Benchmark]: Witness Printer took 33.26ms. Allocated memory is still 107.0MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 15:39:20,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.26ms. Allocated memory is still 107.0MB. Free memory was 74.9MB in the beginning and 84.1MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.83ms. Allocated memory is still 107.0MB. Free memory was 83.7MB in the beginning and 82.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.26ms. Allocated memory is still 107.0MB. Free memory was 82.4MB in the beginning and 81.6MB in the end (delta: 813.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 192.61ms. Allocated memory is still 107.0MB. Free memory was 81.6MB in the beginning and 73.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 984.74ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 69.1MB in the end (delta: 3.6MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 33.26ms. Allocated memory is still 107.0MB. Free memory was 69.1MB in the beginning and 67.0MB 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: 19]: 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, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 16 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 12 NumberOfFragments, 21 HoareAnnotationTreeSize, 3 FomulaSimplifications, 64 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 2 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 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: 17]: Loop Invariant Derived loop invariant: i <= 999999 && 1 <= cond - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: i <= 1000000 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (1 <= cond && i <= 1000000) || i == 0 RESULT: Ultimate proved your program to be correct! [2022-07-13 15:39:20,972 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