./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem08_label24.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/Problem08_label24.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 c2075fde204e2df46664636e530c83aa3783a363565df5999d6391ff95fb47f5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 12:01:33,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:01:33,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:01:33,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:01:33,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:01:33,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:01:33,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:01:33,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:01:33,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:01:33,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:01:33,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:01:33,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:01:33,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:01:33,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:01:33,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:01:33,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:01:33,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:01:33,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:01:33,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:01:33,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:01:33,701 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:01:33,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:01:33,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:01:33,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:01:33,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:01:33,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 12:01:33,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 12:01:33,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 12:01:33,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 12:01:33,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 12:01:33,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 12:01:33,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 12:01:33,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 12:01:33,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 12:01:33,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 12:01:33,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 12:01:33,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 12:01:33,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 12:01:33,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 12:01:33,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:01:33,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:01:33,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:01:33,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 12:01:33,772 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:01:33,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:01:33,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:01:33,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:01:33,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 12:01:33,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 12:01:33,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:01:33,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:01:33,775 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:01:33,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:01:33,775 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:01:33,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:01:33,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:01:33,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:01:33,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 12:01:33,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 12:01:33,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 12:01:33,777 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:01:33,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:01:33,777 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:01:33,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 12:01:33,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:01:33,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:01:33,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 12:01:33,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 12:01:33,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:01:33,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 12:01:33,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 12:01:33,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:01:33,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 12:01:33,779 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 12:01:33,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 12:01:33,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 12:01:33,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2075fde204e2df46664636e530c83aa3783a363565df5999d6391ff95fb47f5 [2022-07-22 12:01:34,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:01:34,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:01:34,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:01:34,166 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:01:34,166 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:01:34,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem08_label24.c [2022-07-22 12:01:34,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ee87c75/43ca599cd4544cad97c843bfcf2679d6/FLAGfb6b77665 [2022-07-22 12:01:38,880 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:01:38,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem08_label24.c [2022-07-22 12:01:39,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ee87c75/43ca599cd4544cad97c843bfcf2679d6/FLAGfb6b77665 [2022-07-22 12:01:39,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ee87c75/43ca599cd4544cad97c843bfcf2679d6 [2022-07-22 12:01:39,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:01:39,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 12:01:39,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:01:39,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:01:39,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:01:39,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:01:39" (1/1) ... [2022-07-22 12:01:39,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6584876d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:01:39, skipping insertion in model container [2022-07-22 12:01:39,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:01:39" (1/1) ... [2022-07-22 12:01:39,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:01:41,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:02:00,988 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/Problem08_label24.c[5709502,5709515] [2022-07-22 12:02:01,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:02:01,206 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:02:09,313 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/Problem08_label24.c[5709502,5709515] [2022-07-22 12:02:09,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:02:14,076 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:02:14,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14 WrapperNode [2022-07-22 12:02:14,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:02:14,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:02:14,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:02:14,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:02:14,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14" (1/1) ... [2022-07-22 12:02:16,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14" (1/1) ... [2022-07-22 12:02:23,091 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184288 [2022-07-22 12:02:23,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:02:23,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:02:23,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:02:23,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:02:23,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14" (1/1) ... [2022-07-22 12:02:23,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14" (1/1) ... [2022-07-22 12:02:24,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14" (1/1) ... [2022-07-22 12:02:24,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14" (1/1) ... [2022-07-22 12:02:27,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14" (1/1) ... [2022-07-22 12:02:27,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14" (1/1) ... [2022-07-22 12:02:28,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14" (1/1) ... [2022-07-22 12:02:29,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:02:29,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:02:29,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:02:29,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:02:29,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14" (1/1) ... [2022-07-22 12:02:29,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 12:02:29,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:02:29,573 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) [2022-07-22 12:02:29,615 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 [2022-07-22 12:02:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:02:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:02:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:02:29,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:02:29,941 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:02:29,942 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:03:31,645 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:03:31,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:03:31,788 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 12:03:31,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:03:31 BoogieIcfgContainer [2022-07-22 12:03:31,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:03:31,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 12:03:31,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 12:03:31,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 12:03:31,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:01:39" (1/3) ... [2022-07-22 12:03:31,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac93619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:03:31, skipping insertion in model container [2022-07-22 12:03:31,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:02:14" (2/3) ... [2022-07-22 12:03:31,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac93619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:03:31, skipping insertion in model container [2022-07-22 12:03:31,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:03:31" (3/3) ... [2022-07-22 12:03:31,851 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem08_label24.c [2022-07-22 12:03:31,862 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 12:03:31,875 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 12:03:32,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 12:03:32,237 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@6d56c5d7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@756fa31e [2022-07-22 12:03:32,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 12:03:32,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 23215 states, 23213 states have (on average 1.8828673588075646) internal successors, (43707), 23214 states have internal predecessors, (43707), 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) [2022-07-22 12:03:34,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17874 [2022-07-22 12:03:34,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:03:34,116 INFO L195 NwaCegarLoop]: 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:03:34,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:03:34,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:03:34,133 INFO L85 PathProgramCache]: Analyzing trace with hash 2028388750, now seen corresponding path program 1 times [2022-07-22 12:03:34,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:03:34,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681251215] [2022-07-22 12:03:34,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:03:34,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:03:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat