./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Dubois-015.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/xcsp/Dubois-015.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 eba00f0070304f786aff86b6063ed55357e3f08cec960cb2b5a3d59a4f88aca7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 06:28:44,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 06:28:44,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 06:28:44,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 06:28:44,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 06:28:44,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 06:28:44,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 06:28:44,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 06:28:44,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 06:28:44,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 06:28:44,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 06:28:44,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 06:28:44,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 06:28:44,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 06:28:44,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 06:28:44,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 06:28:44,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 06:28:44,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 06:28:44,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 06:28:44,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 06:28:44,602 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 06:28:44,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 06:28:44,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 06:28:44,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 06:28:44,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 06:28:44,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 06:28:44,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 06:28:44,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 06:28:44,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 06:28:44,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 06:28:44,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 06:28:44,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 06:28:44,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 06:28:44,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 06:28:44,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 06:28:44,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 06:28:44,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 06:28:44,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 06:28:44,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 06:28:44,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 06:28:44,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 06:28:44,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 06:28:44,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 06:28:44,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 06:28:44,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 06:28:44,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 06:28:44,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 06:28:44,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 06:28:44,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 06:28:44,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 06:28:44,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 06:28:44,662 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 06:28:44,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 06:28:44,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 06:28:44,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 06:28:44,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 06:28:44,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 06:28:44,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 06:28:44,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 06:28:44,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 06:28:44,665 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 06:28:44,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 06:28:44,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 06:28:44,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 06:28:44,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 06:28:44,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 06:28:44,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 06:28:44,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 06:28:44,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 06:28:44,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 06:28:44,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 06:28:44,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 06:28:44,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 06:28:44,668 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 06:28:44,668 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 06:28:44,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 06:28:44,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eba00f0070304f786aff86b6063ed55357e3f08cec960cb2b5a3d59a4f88aca7 [2022-07-21 06:28:44,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 06:28:44,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 06:28:44,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 06:28:44,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 06:28:44,984 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 06:28:44,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Dubois-015.c [2022-07-21 06:28:45,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c049506a8/266c1a89716347edb346c1469b7a1e53/FLAG85635fa29 [2022-07-21 06:28:45,517 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 06:28:45,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Dubois-015.c [2022-07-21 06:28:45,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c049506a8/266c1a89716347edb346c1469b7a1e53/FLAG85635fa29 [2022-07-21 06:28:45,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c049506a8/266c1a89716347edb346c1469b7a1e53 [2022-07-21 06:28:45,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 06:28:45,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 06:28:45,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 06:28:45,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 06:28:45,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 06:28:45,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:28:45" (1/1) ... [2022-07-21 06:28:45,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62311067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:45, skipping insertion in model container [2022-07-21 06:28:45,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:28:45" (1/1) ... [2022-07-21 06:28:45,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 06:28:45,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 06:28:46,138 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/xcsp/Dubois-015.c[10980,10993] [2022-07-21 06:28:46,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 06:28:46,232 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 06:28:46,312 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/xcsp/Dubois-015.c[10980,10993] [2022-07-21 06:28:46,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 06:28:46,381 INFO L208 MainTranslator]: Completed translation [2022-07-21 06:28:46,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46 WrapperNode [2022-07-21 06:28:46,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 06:28:46,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 06:28:46,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 06:28:46,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 06:28:46,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46" (1/1) ... [2022-07-21 06:28:46,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46" (1/1) ... [2022-07-21 06:28:49,303 INFO L137 Inliner]: procedures = 13, calls = 127, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 317 [2022-07-21 06:28:49,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 06:28:49,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 06:28:49,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 06:28:49,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 06:28:49,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46" (1/1) ... [2022-07-21 06:28:49,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46" (1/1) ... [2022-07-21 06:28:50,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46" (1/1) ... [2022-07-21 06:28:50,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46" (1/1) ... [2022-07-21 06:28:51,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46" (1/1) ... [2022-07-21 06:28:51,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46" (1/1) ... [2022-07-21 06:28:51,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46" (1/1) ... [2022-07-21 06:28:52,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 06:28:52,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 06:28:52,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 06:28:52,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 06:28:52,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46" (1/1) ... [2022-07-21 06:28:52,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 06:28:52,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 06:28:52,147 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) [2022-07-21 06:28:52,171 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 [2022-07-21 06:28:52,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 06:28:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 06:28:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 06:28:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 06:28:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-07-21 06:28:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-07-21 06:28:52,290 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 06:28:52,291 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 06:28:54,309 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 06:28:54,316 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 06:28:54,316 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 06:28:54,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:28:54 BoogieIcfgContainer [2022-07-21 06:28:54,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 06:28:54,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 06:28:54,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 06:28:54,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 06:28:54,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 06:28:45" (1/3) ... [2022-07-21 06:28:54,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbd3d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:28:54, skipping insertion in model container [2022-07-21 06:28:54,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:28:46" (2/3) ... [2022-07-21 06:28:54,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbd3d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:28:54, skipping insertion in model container [2022-07-21 06:28:54,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:28:54" (3/3) ... [2022-07-21 06:28:54,326 INFO L111 eAbstractionObserver]: Analyzing ICFG Dubois-015.c [2022-07-21 06:28:54,338 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 06:28:54,339 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 06:28:54,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 06:28:54,403 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@48abdfc4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@47f05eff [2022-07-21 06:28:54,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 06:28:54,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 54 states have internal predecessors, (55), 120 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2022-07-21 06:28:54,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2022-07-21 06:28:54,446 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:28:54,447 INFO L195 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:28:54,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 06:28:54,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:28:54,452 INFO L85 PathProgramCache]: Analyzing trace with hash -742393268, now seen corresponding path program 1 times [2022-07-21 06:28:54,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:28:54,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041623204] [2022-07-21 06:28:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:28:54,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:28:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 06:28:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 06:28:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 06:28:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 06:28:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 06:28:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 06:28:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 06:28:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 06:28:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 06:28:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 06:28:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 06:28:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 06:28:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 06:28:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 06:28:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 06:28:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 06:28:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 06:28:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 06:28:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 06:28:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 06:28:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 06:28:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 06:28:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 06:28:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 06:28:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 06:28:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-21 06:28:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-21 06:28:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-21 06:28:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-21 06:28:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-21 06:28:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 06:28:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 06:28:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 06:28:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 06:28:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-21 06:28:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 06:28:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 06:28:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 06:28:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 06:28:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 06:28:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 06:28:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-21 06:28:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-21 06:28:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-21 06:28:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 06:28:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 06:28:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-21 06:28:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-21 06:28:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-21 06:28:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 06:28:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 06:28:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-21 06:28:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-21 06:28:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-21 06:28:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-21 06:28:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-21 06:28:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-21 06:28:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-21 06:28:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-21 06:28:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-21 06:28:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-21 06:28:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-21 06:28:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-21 06:28:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-21 06:28:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-21 06:28:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-21 06:28:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-21 06:28:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-21 06:28:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-21 06:28:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-07-21 06:28:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-21 06:28:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-07-21 06:28:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-07-21 06:28:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-21 06:28:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-21 06:28:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-07-21 06:28:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-07-21 06:28:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2022-07-21 06:28:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-07-21 06:28:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-07-21 06:28:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-07-21 06:28:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-07-21 06:28:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2022-07-21 06:28:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-07-21 06:28:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-07-21 06:28:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2022-07-21 06:28:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2022-07-21 06:28:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-07-21 06:28:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-21 06:28:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2022-07-21 06:28:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2022-07-21 06:28:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-07-21 06:28:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2022-07-21 06:28:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-07-21 06:28:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2022-07-21 06:28:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-07-21 06:28:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-07-21 06:28:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-07-21 06:28:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2022-07-21 06:28:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-07-21 06:28:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2022-07-21 06:28:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-07-21 06:28:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2022-07-21 06:28:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2022-07-21 06:28:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-07-21 06:28:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2022-07-21 06:28:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 577 [2022-07-21 06:28:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2022-07-21 06:28:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2022-07-21 06:28:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2022-07-21 06:28:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2022-07-21 06:28:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2022-07-21 06:28:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-07-21 06:28:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2022-07-21 06:28:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 617 [2022-07-21 06:28:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 622 [2022-07-21 06:28:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 627 [2022-07-21 06:28:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 632 [2022-07-21 06:28:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2022-07-21 06:28:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2022-07-21 06:28:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:28:55,419 INFO L134 CoverageAnalysis]: Checked inductivity of 28560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2022-07-21 06:28:55,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:28:55,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041623204] [2022-07-21 06:28:55,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041623204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:28:55,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:28:55,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 06:28:55,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198955879] [2022-07-21 06:28:55,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:28:55,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 06:28:55,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:28:55,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 06:28:55,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 06:28:55,460 INFO L87 Difference]: Start difference. First operand has 176 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 54 states have internal predecessors, (55), 120 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 2 states have call successors, (120) [2022-07-21 06:28:55,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:28:55,511 INFO L93 Difference]: Finished difference Result 346 states and 704 transitions. [2022-07-21 06:28:55,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 06:28:55,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 2 states have call successors, (120) Word has length 648 [2022-07-21 06:28:55,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:28:55,521 INFO L225 Difference]: With dead ends: 346 [2022-07-21 06:28:55,521 INFO L226 Difference]: Without dead ends: 173 [2022-07-21 06:28:55,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 06:28:55,530 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:28:55,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:28:55,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-07-21 06:28:55,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-07-21 06:28:55,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 51 states have (on average 1.0) internal successors, (51), 51 states have internal predecessors, (51), 120 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2022-07-21 06:28:55,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 291 transitions. [2022-07-21 06:28:55,595 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 291 transitions. Word has length 648 [2022-07-21 06:28:55,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:28:55,595 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 291 transitions. [2022-07-21 06:28:55,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (120), 1 states have call predecessors, (120), 1 states have return successors, (120), 1 states have call predecessors, (120), 2 states have call successors, (120) [2022-07-21 06:28:55,596 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 291 transitions. [2022-07-21 06:28:55,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2022-07-21 06:28:55,612 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:28:55,612 INFO L195 NwaCegarLoop]: trace histogram [120, 120, 120, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:28:55,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 06:28:55,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 06:28:55,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:28:55,613 INFO L85 PathProgramCache]: Analyzing trace with hash 818839756, now seen corresponding path program 1 times [2022-07-21 06:28:55,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:28:55,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669864778] [2022-07-21 06:28:55,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:28:55,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:28:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat