./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/AllInterval-007.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/xcsp/AllInterval-007.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 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 19:24:05,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 19:24:05,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 19:24:05,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 19:24:05,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 19:24:05,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 19:24:05,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 19:24:05,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 19:24:05,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 19:24:05,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 19:24:05,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 19:24:05,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 19:24:05,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 19:24:05,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 19:24:05,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 19:24:05,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 19:24:05,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 19:24:05,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 19:24:05,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 19:24:05,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 19:24:05,527 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 19:24:05,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 19:24:05,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 19:24:05,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 19:24:05,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 19:24:05,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 19:24:05,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 19:24:05,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 19:24:05,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 19:24:05,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 19:24:05,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 19:24:05,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 19:24:05,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 19:24:05,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 19:24:05,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 19:24:05,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 19:24:05,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 19:24:05,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 19:24:05,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 19:24:05,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 19:24:05,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 19:24:05,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 19:24:05,545 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 19:24:05,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 19:24:05,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 19:24:05,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 19:24:05,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 19:24:05,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 19:24:05,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 19:24:05,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 19:24:05,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 19:24:05,574 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 19:24:05,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 19:24:05,575 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 19:24:05,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 19:24:05,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 19:24:05,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 19:24:05,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 19:24:05,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 19:24:05,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 19:24:05,576 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 19:24:05,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 19:24:05,576 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 19:24:05,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 19:24:05,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 19:24:05,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 19:24:05,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 19:24:05,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 19:24:05,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 19:24:05,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 19:24:05,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 19:24:05,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 19:24:05,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 19:24:05,578 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 19:24:05,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 19:24:05,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 19:24:05,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 [2022-07-13 19:24:05,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 19:24:05,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 19:24:05,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 19:24:05,741 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 19:24:05,743 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 19:24:05,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-007.c [2022-07-13 19:24:05,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b69c5561f/54f920690d2e42eaaf1dfd1b49219c1e/FLAG349d42905 [2022-07-13 19:24:06,158 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 19:24:06,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-007.c [2022-07-13 19:24:06,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b69c5561f/54f920690d2e42eaaf1dfd1b49219c1e/FLAG349d42905 [2022-07-13 19:24:06,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b69c5561f/54f920690d2e42eaaf1dfd1b49219c1e [2022-07-13 19:24:06,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 19:24:06,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 19:24:06,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 19:24:06,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 19:24:06,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 19:24:06,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20fecb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06, skipping insertion in model container [2022-07-13 19:24:06,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 19:24:06,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 19:24:06,334 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/AllInterval-007.c[3690,3703] [2022-07-13 19:24:06,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 19:24:06,341 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 19:24:06,358 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/AllInterval-007.c[3690,3703] [2022-07-13 19:24:06,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 19:24:06,367 INFO L208 MainTranslator]: Completed translation [2022-07-13 19:24:06,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06 WrapperNode [2022-07-13 19:24:06,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 19:24:06,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 19:24:06,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 19:24:06,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 19:24:06,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,392 INFO L137 Inliner]: procedures = 13, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 174 [2022-07-13 19:24:06,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 19:24:06,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 19:24:06,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 19:24:06,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 19:24:06,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 19:24:06,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 19:24:06,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 19:24:06,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 19:24:06,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06" (1/1) ... [2022-07-13 19:24:06,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 19:24:06,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 19:24:06,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 19:24:06,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 19:24:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 19:24:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 19:24:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 19:24:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 19:24:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-07-13 19:24:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-07-13 19:24:06,513 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 19:24:06,514 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 19:24:06,711 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 19:24:06,716 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 19:24:06,716 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 19:24:06,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 07:24:06 BoogieIcfgContainer [2022-07-13 19:24:06,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 19:24:06,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 19:24:06,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 19:24:06,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 19:24:06,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 07:24:06" (1/3) ... [2022-07-13 19:24:06,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21336e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 07:24:06, skipping insertion in model container [2022-07-13 19:24:06,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:24:06" (2/3) ... [2022-07-13 19:24:06,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21336e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 07:24:06, skipping insertion in model container [2022-07-13 19:24:06,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 07:24:06" (3/3) ... [2022-07-13 19:24:06,722 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-007.c [2022-07-13 19:24:06,731 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 19:24:06,731 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 19:24:06,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 19:24:06,773 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@42e60c45, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5ccbf39e [2022-07-13 19:24:06,773 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 19:24:06,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 39 states have (on average 1.205128205128205) internal successors, (47), 40 states have internal predecessors, (47), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-07-13 19:24:06,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-13 19:24:06,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:24:06,799 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:24:06,799 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:24:06,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:24:06,803 INFO L85 PathProgramCache]: Analyzing trace with hash -128819059, now seen corresponding path program 1 times [2022-07-13 19:24:06,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:24:06,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245477468] [2022-07-13 19:24:06,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:24:06,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:24:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:06,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 19:24:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 19:24:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 19:24:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 19:24:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 19:24:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 19:24:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 19:24:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 19:24:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 19:24:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 19:24:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 19:24:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 19:24:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 19:24:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 19:24:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 19:24:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 19:24:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 19:24:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 19:24:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 19:24:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 19:24:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 19:24:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-13 19:24:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 19:24:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-13 19:24:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-13 19:24:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 19:24:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-13 19:24:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-13 19:24:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 19:24:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-13 19:24:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-13 19:24:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-13 19:24:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:24:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-13 19:24:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-13 19:24:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-13 19:24:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-13 19:24:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-13 19:24:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-13 19:24:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-13 19:24:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-13 19:24:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-13 19:24:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-13 19:24:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-13 19:24:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-13 19:24:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-13 19:24:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-13 19:24:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-13 19:24:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-13 19:24:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-13 19:24:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-13 19:24:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-13 19:24:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-13 19:24:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-13 19:24:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-13 19:24:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-13 19:24:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-13 19:24:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-13 19:24:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-13 19:24:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-13 19:24:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-13 19:24:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-13 19:24:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-13 19:24:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-13 19:24:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-13 19:24:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-13 19:24:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-13 19:24:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-13 19:24:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:07,220 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2022-07-13 19:24:07,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:24:07,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245477468] [2022-07-13 19:24:07,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245477468] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:24:07,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:24:07,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 19:24:07,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660494455] [2022-07-13 19:24:07,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:24:07,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 19:24:07,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:24:07,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 19:24:07,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 19:24:07,254 INFO L87 Difference]: Start difference. First operand has 110 states, 39 states have (on average 1.205128205128205) internal successors, (47), 40 states have internal predecessors, (47), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) [2022-07-13 19:24:07,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:24:07,315 INFO L93 Difference]: Finished difference Result 214 states and 428 transitions. [2022-07-13 19:24:07,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 19:24:07,317 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) Word has length 374 [2022-07-13 19:24:07,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:24:07,330 INFO L225 Difference]: With dead ends: 214 [2022-07-13 19:24:07,330 INFO L226 Difference]: Without dead ends: 107 [2022-07-13 19:24:07,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 19:24:07,344 INFO L413 NwaCegarLoop]: 179 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, 179 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 [2022-07-13 19:24:07,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:24:07,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-07-13 19:24:07,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-07-13 19:24:07,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-07-13 19:24:07,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 179 transitions. [2022-07-13 19:24:07,399 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 179 transitions. Word has length 374 [2022-07-13 19:24:07,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:24:07,400 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 179 transitions. [2022-07-13 19:24:07,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) [2022-07-13 19:24:07,400 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 179 transitions. [2022-07-13 19:24:07,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-13 19:24:07,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:24:07,411 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:24:07,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 19:24:07,411 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:24:07,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:24:07,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1137197631, now seen corresponding path program 1 times [2022-07-13 19:24:07,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:24:07,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252830140] [2022-07-13 19:24:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:24:07,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:24:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 19:24:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 19:24:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 19:24:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 19:24:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 19:24:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 19:24:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 19:24:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 19:24:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 19:24:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 19:24:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 19:24:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 19:24:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 19:24:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 19:24:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 19:24:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 19:24:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 19:24:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 19:24:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 19:24:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 19:24:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 19:24:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-13 19:24:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 19:24:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-13 19:24:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-13 19:24:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 19:24:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-13 19:24:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-13 19:24:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 19:24:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-13 19:24:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-13 19:24:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-13 19:24:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:24:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-13 19:24:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-13 19:24:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-13 19:24:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-13 19:24:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-13 19:24:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-13 19:24:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-13 19:24:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-13 19:24:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-13 19:24:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-13 19:24:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-13 19:24:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-13 19:24:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-13 19:24:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-13 19:24:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-13 19:24:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-13 19:24:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-13 19:24:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-13 19:24:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-13 19:24:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-13 19:24:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-13 19:24:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-13 19:24:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-13 19:24:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-13 19:24:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:10,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-13 19:24:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-13 19:24:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-13 19:24:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-13 19:24:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-13 19:24:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-13 19:24:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-13 19:24:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-13 19:24:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-13 19:24:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-13 19:24:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-13 19:24:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1119 proven. 897 refuted. 0 times theorem prover too weak. 7096 trivial. 0 not checked. [2022-07-13 19:24:11,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:24:11,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252830140] [2022-07-13 19:24:11,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252830140] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 19:24:11,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904521876] [2022-07-13 19:24:11,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:24:11,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 19:24:11,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 19:24:11,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 19:24:11,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 19:24:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:11,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 101 conjunts are in the unsatisfiable core [2022-07-13 19:24:11,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 19:24:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1771 proven. 723 refuted. 0 times theorem prover too weak. 6618 trivial. 0 not checked. [2022-07-13 19:24:13,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 19:24:17,047 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1503 proven. 765 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2022-07-13 19:24:17,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904521876] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 19:24:17,047 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 19:24:17,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 31, 32] total 83 [2022-07-13 19:24:17,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560778398] [2022-07-13 19:24:17,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 19:24:17,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-07-13 19:24:17,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:24:17,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-07-13 19:24:17,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=6368, Unknown=0, NotChecked=0, Total=6806 [2022-07-13 19:24:17,059 INFO L87 Difference]: Start difference. First operand 107 states and 179 transitions. Second operand has 83 states, 57 states have (on average 1.6140350877192982) internal successors, (92), 54 states have internal predecessors, (92), 44 states have call successors, (182), 2 states have call predecessors, (182), 3 states have return successors, (183), 39 states have call predecessors, (183), 44 states have call successors, (183) [2022-07-13 19:24:37,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:24:37,842 INFO L93 Difference]: Finished difference Result 206 states and 307 transitions. [2022-07-13 19:24:37,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-07-13 19:24:37,843 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 57 states have (on average 1.6140350877192982) internal successors, (92), 54 states have internal predecessors, (92), 44 states have call successors, (182), 2 states have call predecessors, (182), 3 states have return successors, (183), 39 states have call predecessors, (183), 44 states have call successors, (183) Word has length 374 [2022-07-13 19:24:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:24:37,845 INFO L225 Difference]: With dead ends: 206 [2022-07-13 19:24:37,845 INFO L226 Difference]: Without dead ends: 194 [2022-07-13 19:24:37,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 843 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2747 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=3274, Invalid=14816, Unknown=0, NotChecked=0, Total=18090 [2022-07-13 19:24:37,850 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 932 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 6951 mSolverCounterSat, 1097 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 8227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1097 IncrementalHoareTripleChecker+Valid, 6951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 179 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:24:37,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 1495 Invalid, 8227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1097 Valid, 6951 Invalid, 0 Unknown, 179 Unchecked, 5.0s Time] [2022-07-13 19:24:37,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-07-13 19:24:37,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 123. [2022-07-13 19:24:37,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 49 states have (on average 1.183673469387755) internal successors, (58), 49 states have internal predecessors, (58), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-07-13 19:24:37,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 202 transitions. [2022-07-13 19:24:37,879 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 202 transitions. Word has length 374 [2022-07-13 19:24:37,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:24:37,880 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 202 transitions. [2022-07-13 19:24:37,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 57 states have (on average 1.6140350877192982) internal successors, (92), 54 states have internal predecessors, (92), 44 states have call successors, (182), 2 states have call predecessors, (182), 3 states have return successors, (183), 39 states have call predecessors, (183), 44 states have call successors, (183) [2022-07-13 19:24:37,881 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 202 transitions. [2022-07-13 19:24:37,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-13 19:24:37,884 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:24:37,884 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:24:37,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 19:24:38,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 19:24:38,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:24:38,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:24:38,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2136701311, now seen corresponding path program 1 times [2022-07-13 19:24:38,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:24:38,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260582117] [2022-07-13 19:24:38,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:24:38,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:24:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 19:24:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 19:24:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 19:24:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 19:24:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 19:24:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 19:24:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 19:24:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 19:24:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 19:24:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 19:24:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 19:24:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 19:24:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 19:24:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 19:24:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 19:24:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 19:24:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 19:24:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 19:24:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 19:24:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 19:24:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 19:24:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-13 19:24:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 19:24:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-13 19:24:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-13 19:24:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 19:24:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-13 19:24:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-13 19:24:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 19:24:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-13 19:24:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-13 19:24:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-13 19:24:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:24:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-13 19:24:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-13 19:24:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-13 19:24:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-13 19:24:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-13 19:24:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-13 19:24:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-13 19:24:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-13 19:24:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-13 19:24:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-13 19:24:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-13 19:24:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-13 19:24:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-13 19:24:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-13 19:24:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-13 19:24:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-13 19:24:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-13 19:24:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-13 19:24:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-13 19:24:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-13 19:24:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-13 19:24:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-13 19:24:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-13 19:24:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-13 19:24:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-13 19:24:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:46,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-13 19:24:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:47,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-13 19:24:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:47,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-13 19:24:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:47,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-13 19:24:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:47,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-13 19:24:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:47,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-13 19:24:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:47,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-13 19:24:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:47,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-13 19:24:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:47,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-13 19:24:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:47,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-13 19:24:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:47,146 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 2148 proven. 957 refuted. 0 times theorem prover too weak. 6007 trivial. 0 not checked. [2022-07-13 19:24:47,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:24:47,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260582117] [2022-07-13 19:24:47,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260582117] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 19:24:47,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293010366] [2022-07-13 19:24:47,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:24:47,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 19:24:47,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 19:24:47,151 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 19:24:47,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 19:24:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:24:47,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 90 conjunts are in the unsatisfiable core [2022-07-13 19:24:47,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 19:24:50,109 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1956 proven. 756 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-07-13 19:24:50,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 19:24:56,843 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1428 proven. 840 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2022-07-13 19:24:56,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293010366] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 19:24:56,844 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 19:24:56,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 27, 29] total 93 [2022-07-13 19:24:56,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736789294] [2022-07-13 19:24:56,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 19:24:56,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-07-13 19:24:56,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:24:56,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-07-13 19:24:56,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=472, Invalid=8084, Unknown=0, NotChecked=0, Total=8556 [2022-07-13 19:24:56,848 INFO L87 Difference]: Start difference. First operand 123 states and 202 transitions. Second operand has 93 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 57 states have internal predecessors, (93), 55 states have call successors, (186), 2 states have call predecessors, (186), 3 states have return successors, (188), 50 states have call predecessors, (188), 55 states have call successors, (188) [2022-07-13 19:25:48,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:25:48,455 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2022-07-13 19:25:48,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-07-13 19:25:48,456 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 57 states have internal predecessors, (93), 55 states have call successors, (186), 2 states have call predecessors, (186), 3 states have return successors, (188), 50 states have call predecessors, (188), 55 states have call successors, (188) Word has length 374 [2022-07-13 19:25:48,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:25:48,459 INFO L225 Difference]: With dead ends: 197 [2022-07-13 19:25:48,459 INFO L226 Difference]: Without dead ends: 181 [2022-07-13 19:25:48,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1013 GetRequests, 861 SyntacticMatches, 1 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3633 ImplicationChecksByTransitivity, 51.7s TimeCoverageRelationStatistics Valid=4359, Invalid=18897, Unknown=0, NotChecked=0, Total=23256 [2022-07-13 19:25:48,464 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 808 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 9080 mSolverCounterSat, 1163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 10243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1163 IncrementalHoareTripleChecker+Valid, 9080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:25:48,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1799 Invalid, 10243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1163 Valid, 9080 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-07-13 19:25:48,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-07-13 19:25:48,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 119. [2022-07-13 19:25:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 46 states have (on average 1.173913043478261) internal successors, (54), 46 states have internal predecessors, (54), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-07-13 19:25:48,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 196 transitions. [2022-07-13 19:25:48,512 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 196 transitions. Word has length 374 [2022-07-13 19:25:48,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:25:48,516 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 196 transitions. [2022-07-13 19:25:48,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 57 states have internal predecessors, (93), 55 states have call successors, (186), 2 states have call predecessors, (186), 3 states have return successors, (188), 50 states have call predecessors, (188), 55 states have call successors, (188) [2022-07-13 19:25:48,517 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 196 transitions. [2022-07-13 19:25:48,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-07-13 19:25:48,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:25:48,521 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:25:48,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 19:25:48,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-13 19:25:48,739 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:25:48,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:25:48,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1271211137, now seen corresponding path program 1 times [2022-07-13 19:25:48,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:25:48,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867583978] [2022-07-13 19:25:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:25:48,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:25:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat