./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem09_label37.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/eca-rers2012/Problem09_label37.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 72f7bbe26e999aa6fc862b70c94a22decf0c1308667d8d82ec3946437822092d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 04:17:41,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 04:17:41,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 04:17:41,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 04:17:41,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 04:17:41,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 04:17:41,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 04:17:41,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 04:17:41,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 04:17:41,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 04:17:41,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 04:17:41,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 04:17:41,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 04:17:41,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 04:17:41,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 04:17:41,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 04:17:41,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 04:17:41,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 04:17:41,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 04:17:41,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 04:17:41,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 04:17:41,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 04:17:41,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 04:17:41,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 04:17:41,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 04:17:41,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 04:17:41,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 04:17:41,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 04:17:41,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 04:17:41,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 04:17:41,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 04:17:41,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 04:17:41,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 04:17:41,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 04:17:41,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 04:17:41,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 04:17:41,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 04:17:41,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 04:17:41,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 04:17:41,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 04:17:41,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 04:17:41,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 04:17:41,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 04:17:41,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 04:17:41,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 04:17:41,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 04:17:41,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 04:17:41,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 04:17:41,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 04:17:41,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 04:17:41,440 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 04:17:41,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 04:17:41,441 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 04:17:41,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 04:17:41,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 04:17:41,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 04:17:41,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 04:17:41,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 04:17:41,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 04:17:41,442 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 04:17:41,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 04:17:41,442 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 04:17:41,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 04:17:41,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 04:17:41,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 04:17:41,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 04:17:41,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:17:41,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 04:17:41,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 04:17:41,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 04:17:41,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 04:17:41,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 04:17:41,444 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 04:17:41,444 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 04:17:41,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 04:17:41,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 04:17:41,444 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72f7bbe26e999aa6fc862b70c94a22decf0c1308667d8d82ec3946437822092d [2021-12-17 04:17:41,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 04:17:41,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 04:17:41,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 04:17:41,649 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 04:17:41,652 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 04:17:41,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem09_label37.c [2021-12-17 04:17:41,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb0f9d44/8e5ddea499784d7881c20e7f0f49a370/FLAG446d7ac3d [2021-12-17 04:17:43,633 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 04:17:43,633 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem09_label37.c [2021-12-17 04:17:43,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb0f9d44/8e5ddea499784d7881c20e7f0f49a370/FLAG446d7ac3d [2021-12-17 04:17:43,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb0f9d44/8e5ddea499784d7881c20e7f0f49a370 [2021-12-17 04:17:43,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 04:17:43,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 04:17:43,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 04:17:43,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 04:17:43,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 04:17:43,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:17:43" (1/1) ... [2021-12-17 04:17:43,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6ae308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:17:43, skipping insertion in model container [2021-12-17 04:17:43,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:17:43" (1/1) ... [2021-12-17 04:17:43,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 04:17:45,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 04:18:01,501 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/eca-rers2012/Problem09_label37.c[6304596,6304609] [2021-12-17 04:18:01,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:18:01,599 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 04:18:10,229 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/eca-rers2012/Problem09_label37.c[6304596,6304609] [2021-12-17 04:18:10,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:18:14,245 INFO L208 MainTranslator]: Completed translation [2021-12-17 04:18:14,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14 WrapperNode [2021-12-17 04:18:14,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 04:18:14,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 04:18:14,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 04:18:14,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 04:18:14,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14" (1/1) ... [2021-12-17 04:18:15,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14" (1/1) ... [2021-12-17 04:18:20,788 INFO L137 Inliner]: procedures = 88, calls = 82, calls flagged for inlining = 77, calls inlined = 77, statements flattened = 197818 [2021-12-17 04:18:20,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 04:18:20,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 04:18:20,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 04:18:20,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 04:18:20,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14" (1/1) ... [2021-12-17 04:18:20,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14" (1/1) ... [2021-12-17 04:18:21,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14" (1/1) ... [2021-12-17 04:18:21,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14" (1/1) ... [2021-12-17 04:18:23,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14" (1/1) ... [2021-12-17 04:18:23,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14" (1/1) ... [2021-12-17 04:18:23,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14" (1/1) ... [2021-12-17 04:18:24,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 04:18:24,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 04:18:24,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 04:18:24,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 04:18:24,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14" (1/1) ... [2021-12-17 04:18:24,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:18:24,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:18:24,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 04:18:24,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 04:18:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 04:18:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 04:18:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 04:18:24,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 04:18:24,708 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 04:18:24,709 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 04:19:18,020 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 04:19:18,081 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 04:19:18,081 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 04:19:18,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:19:18 BoogieIcfgContainer [2021-12-17 04:19:18,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 04:19:18,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 04:19:18,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 04:19:18,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 04:19:18,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:17:43" (1/3) ... [2021-12-17 04:19:18,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1553194d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:19:18, skipping insertion in model container [2021-12-17 04:19:18,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:18:14" (2/3) ... [2021-12-17 04:19:18,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1553194d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:19:18, skipping insertion in model container [2021-12-17 04:19:18,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:19:18" (3/3) ... [2021-12-17 04:19:18,103 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem09_label37.c [2021-12-17 04:19:18,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 04:19:18,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 04:19:18,168 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 04:19:18,174 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 04:19:18,174 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 04:19:18,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 20356 states, 20354 states have (on average 1.902525302151911) internal successors, (38724), 20355 states have internal predecessors, (38724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:19:19,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16493 [2021-12-17 04:19:19,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:19:19,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:19:19,944 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:19:19,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:19:19,960 INFO L85 PathProgramCache]: Analyzing trace with hash 654159071, now seen corresponding path program 1 times [2021-12-17 04:19:19,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:19:19,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873006375] [2021-12-17 04:19:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:19:19,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:19:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat