./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Dubois-019.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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-019.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 42be0dd7c0591debf7e5f003ab2565c2cee2d060ebc66ea41d5f9c8be093c1f8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 07:49:48,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:49:48,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:49:48,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:49:48,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:49:48,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:49:48,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:49:48,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:49:48,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:49:48,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:49:48,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:49:48,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:49:48,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:49:48,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:49:48,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:49:48,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:49:48,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:49:48,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:49:48,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:49:48,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:49:48,681 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:49:48,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:49:48,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:49:48,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:49:48,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:49:48,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:49:48,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:49:48,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:49:48,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:49:48,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:49:48,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:49:48,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:49:48,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:49:48,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:49:48,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:49:48,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:49:48,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:49:48,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:49:48,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:49:48,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:49:48,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:49:48,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:49:48,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:49:48,722 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:49:48,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:49:48,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:49:48,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:49:48,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:49:48,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:49:48,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:49:48,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:49:48,725 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:49:48,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:49:48,726 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:49:48,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:49:48,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:49:48,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:49:48,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:49:48,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:49:48,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:49:48,727 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:49:48,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:49:48,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:49:48,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:49:48,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:49:48,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:49:48,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:49:48,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:49:48,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:49:48,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:49:48,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:49:48,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:49:48,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:49:48,729 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:49:48,730 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:49:48,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:49:48,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42be0dd7c0591debf7e5f003ab2565c2cee2d060ebc66ea41d5f9c8be093c1f8 [2022-07-12 07:49:48,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:49:48,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:49:48,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:49:48,926 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:49:48,926 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:49:48,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Dubois-019.c [2022-07-12 07:49:48,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc3519dc2/1ed2da14e57a42a3a9e9679751290fdd/FLAG7423bdb98 [2022-07-12 07:49:49,365 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:49:49,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Dubois-019.c [2022-07-12 07:49:49,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc3519dc2/1ed2da14e57a42a3a9e9679751290fdd/FLAG7423bdb98 [2022-07-12 07:49:49,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc3519dc2/1ed2da14e57a42a3a9e9679751290fdd [2022-07-12 07:49:49,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:49:49,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:49:49,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:49:49,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:49:49,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:49:49,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:49,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fe3a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49, skipping insertion in model container [2022-07-12 07:49:49,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:49,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:49:49,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:49:49,629 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-019.c[13716,13729] [2022-07-12 07:49:49,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:49:49,685 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:49:49,734 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-019.c[13716,13729] [2022-07-12 07:49:49,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:49:49,790 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:49:49,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49 WrapperNode [2022-07-12 07:49:49,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:49:49,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:49:49,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:49:49,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:49:49,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:49,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:52,983 INFO L137 Inliner]: procedures = 13, calls = 159, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 397 [2022-07-12 07:49:52,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:49:52,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:49:52,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:49:52,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:49:52,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:52,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:54,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:54,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:55,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:55,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:55,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:56,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:49:56,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:49:56,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:49:56,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:49:56,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49" (1/1) ... [2022-07-12 07:49:56,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:49:56,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:49:56,639 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) [2022-07-12 07:49:56,682 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 [2022-07-12 07:49:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:49:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:49:56,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:49:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:49:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-07-12 07:49:56,698 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-07-12 07:49:56,756 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:49:56,757 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:49:58,512 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:49:58,521 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:49:58,521 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 07:49:58,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:49:58 BoogieIcfgContainer [2022-07-12 07:49:58,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:49:58,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:49:58,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:49:58,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:49:58,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:49:49" (1/3) ... [2022-07-12 07:49:58,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e0e527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:49:58, skipping insertion in model container [2022-07-12 07:49:58,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:49:49" (2/3) ... [2022-07-12 07:49:58,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e0e527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:49:58, skipping insertion in model container [2022-07-12 07:49:58,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:49:58" (3/3) ... [2022-07-12 07:49:58,529 INFO L111 eAbstractionObserver]: Analyzing ICFG Dubois-019.c [2022-07-12 07:49:58,540 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:49:58,540 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 07:49:58,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:49:58,620 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@7e29e983, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@d2a4157 [2022-07-12 07:49:58,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 07:49:58,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 220 states, 65 states have (on average 1.0307692307692307) internal successors, (67), 66 states have internal predecessors, (67), 152 states have call successors, (152), 1 states have call predecessors, (152), 1 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2022-07-12 07:49:58,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2022-07-12 07:49:58,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:49:58,659 INFO L195 NwaCegarLoop]: trace histogram [152, 152, 152, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:49:58,659 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:49:58,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:49:58,664 INFO L85 PathProgramCache]: Analyzing trace with hash -122620394, now seen corresponding path program 1 times [2022-07-12 07:49:58,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:49:58,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498886149] [2022-07-12 07:49:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:49:58,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:49:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 07:49:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 07:49:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 07:49:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 07:49:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 07:49:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 07:49:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 07:49:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 07:49:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 07:49:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 07:49:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 07:49:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 07:49:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 07:49:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:49:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:49:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 07:49:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 07:49:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 07:49:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 07:49:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 07:49:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 07:49:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 07:49:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 07:49:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 07:49:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 07:49:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 07:49:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 07:49:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 07:49:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 07:49:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-12 07:49:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 07:49:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 07:49:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 07:49:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 07:49:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-12 07:49:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 07:49:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-12 07:49:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 07:49:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 07:49:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-12 07:49:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-12 07:49:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 07:49:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 07:49:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-12 07:49:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 07:49:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-12 07:49:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 07:49:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-12 07:49:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 07:49:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-12 07:49:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-12 07:49:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-12 07:49:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-12 07:49:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-12 07:49:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 07:49:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-12 07:49:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-12 07:49:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-12 07:49:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-12 07:49:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-12 07:49:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-12 07:49:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-12 07:49:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-12 07:49:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-12 07:49:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-12 07:49:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-12 07:49:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-12 07:49:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-12 07:49:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-12 07:49:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-07-12 07:49:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-12 07:49:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-07-12 07:49:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-07-12 07:49:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-12 07:49:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-12 07:49:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-07-12 07:49:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-07-12 07:49:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2022-07-12 07:49:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-07-12 07:49:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-07-12 07:49:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-07-12 07:49:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-07-12 07:49:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2022-07-12 07:49:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-07-12 07:49:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-07-12 07:49:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2022-07-12 07:49:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2022-07-12 07:49:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-07-12 07:49:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-12 07:49:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2022-07-12 07:49:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2022-07-12 07:49:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-07-12 07:49:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-07-12 07:49:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2022-07-12 07:49:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-07-12 07:49:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-07-12 07:49:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-07-12 07:49:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-07-12 07:49:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2022-07-12 07:49:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-07-12 07:49:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-07-12 07:49:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2022-07-12 07:49:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2022-07-12 07:49:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2022-07-12 07:49:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2022-07-12 07:49:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2022-07-12 07:49:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 585 [2022-07-12 07:49:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2022-07-12 07:49:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 596 [2022-07-12 07:49:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2022-07-12 07:49:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-07-12 07:49:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2022-07-12 07:49:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 618 [2022-07-12 07:49:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-07-12 07:49:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 629 [2022-07-12 07:49:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 634 [2022-07-12 07:49:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-07-12 07:49:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 644 [2022-07-12 07:49:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 649 [2022-07-12 07:49:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 654 [2022-07-12 07:49:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2022-07-12 07:49:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2022-07-12 07:49:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2022-07-12 07:49:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 674 [2022-07-12 07:49:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-07-12 07:49:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 684 [2022-07-12 07:49:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2022-07-12 07:49:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 694 [2022-07-12 07:49:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699 [2022-07-12 07:49:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 704 [2022-07-12 07:49:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 709 [2022-07-12 07:49:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 714 [2022-07-12 07:49:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2022-07-12 07:49:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 724 [2022-07-12 07:49:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 729 [2022-07-12 07:49:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 734 [2022-07-12 07:49:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 739 [2022-07-12 07:49:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 744 [2022-07-12 07:49:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 749 [2022-07-12 07:49:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 754 [2022-07-12 07:49:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 759 [2022-07-12 07:49:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 764 [2022-07-12 07:49:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2022-07-12 07:49:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 774 [2022-07-12 07:49:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 779 [2022-07-12 07:49:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2022-07-12 07:49:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 789 [2022-07-12 07:49:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2022-07-12 07:49:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 799 [2022-07-12 07:49:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2022-07-12 07:49:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2022-07-12 07:49:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 814 [2022-07-12 07:49:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:49:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 45904 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45904 trivial. 0 not checked. [2022-07-12 07:49:59,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:49:59,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498886149] [2022-07-12 07:49:59,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498886149] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:49:59,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:49:59,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 07:49:59,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380054509] [2022-07-12 07:49:59,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:49:59,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 07:49:59,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:49:59,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 07:49:59,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 07:49:59,494 INFO L87 Difference]: Start difference. First operand has 220 states, 65 states have (on average 1.0307692307692307) internal successors, (67), 66 states have internal predecessors, (67), 152 states have call successors, (152), 1 states have call predecessors, (152), 1 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (152), 1 states have call predecessors, (152), 1 states have return successors, (152), 1 states have call predecessors, (152), 2 states have call successors, (152) [2022-07-12 07:49:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:49:59,537 INFO L93 Difference]: Finished difference Result 434 states and 888 transitions. [2022-07-12 07:49:59,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 07:49:59,539 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (152), 1 states have call predecessors, (152), 1 states have return successors, (152), 1 states have call predecessors, (152), 2 states have call successors, (152) Word has length 820 [2022-07-12 07:49:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:49:59,545 INFO L225 Difference]: With dead ends: 434 [2022-07-12 07:49:59,545 INFO L226 Difference]: Without dead ends: 217 [2022-07-12 07:49:59,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 07:49:59,553 INFO L413 NwaCegarLoop]: 367 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, 367 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 [2022-07-12 07:49:59,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:49:59,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-07-12 07:49:59,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2022-07-12 07:49:59,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 63 states have (on average 1.0) internal successors, (63), 63 states have internal predecessors, (63), 152 states have call successors, (152), 1 states have call predecessors, (152), 1 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2022-07-12 07:49:59,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 367 transitions. [2022-07-12 07:49:59,622 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 367 transitions. Word has length 820 [2022-07-12 07:49:59,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:49:59,623 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 367 transitions. [2022-07-12 07:49:59,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (152), 1 states have call predecessors, (152), 1 states have return successors, (152), 1 states have call predecessors, (152), 2 states have call successors, (152) [2022-07-12 07:49:59,623 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 367 transitions. [2022-07-12 07:49:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2022-07-12 07:49:59,639 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:49:59,640 INFO L195 NwaCegarLoop]: trace histogram [152, 152, 152, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:49:59,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:49:59,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:49:59,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:49:59,643 INFO L85 PathProgramCache]: Analyzing trace with hash -763287658, now seen corresponding path program 1 times [2022-07-12 07:49:59,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:49:59,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274766344] [2022-07-12 07:49:59,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:49:59,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:50:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat