./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label59.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label59.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 86b33a3328c808cec34f54492a07e8640c009630cc5a59a5959b66da0514436c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 22:51:07,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 22:51:07,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 22:51:07,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 22:51:07,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 22:51:07,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 22:51:07,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 22:51:07,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 22:51:07,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 22:51:07,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 22:51:07,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 22:51:07,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 22:51:07,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 22:51:07,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 22:51:07,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 22:51:07,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 22:51:07,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 22:51:07,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 22:51:07,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 22:51:07,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 22:51:07,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 22:51:07,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 22:51:07,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 22:51:07,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 22:51:07,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 22:51:07,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 22:51:07,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 22:51:07,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 22:51:07,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 22:51:07,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 22:51:07,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 22:51:07,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 22:51:07,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 22:51:07,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 22:51:07,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 22:51:07,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 22:51:07,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 22:51:07,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 22:51:07,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 22:51:07,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 22:51:07,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 22:51:07,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 22:51:07,433 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 22:51:07,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 22:51:07,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 22:51:07,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 22:51:07,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 22:51:07,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 22:51:07,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 22:51:07,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 22:51:07,436 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 22:51:07,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 22:51:07,437 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 22:51:07,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 22:51:07,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 22:51:07,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 22:51:07,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 22:51:07,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 22:51:07,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 22:51:07,438 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 22:51:07,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 22:51:07,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 22:51:07,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 22:51:07,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 22:51:07,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 22:51:07,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 22:51:07,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:51:07,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 22:51:07,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 22:51:07,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 22:51:07,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 22:51:07,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 22:51:07,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 22:51:07,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 22:51:07,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 22:51:07,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 22:51:07,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86b33a3328c808cec34f54492a07e8640c009630cc5a59a5959b66da0514436c [2021-12-15 22:51:07,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 22:51:07,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 22:51:07,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 22:51:07,644 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 22:51:07,644 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 22:51:07,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label59.c [2021-12-15 22:51:07,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bfec0b20/b90884251d934c2cadfdca34272ac02d/FLAG630eebb3f [2021-12-15 22:51:08,136 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 22:51:08,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label59.c [2021-12-15 22:51:08,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bfec0b20/b90884251d934c2cadfdca34272ac02d/FLAG630eebb3f [2021-12-15 22:51:08,156 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bfec0b20/b90884251d934c2cadfdca34272ac02d [2021-12-15 22:51:08,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 22:51:08,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 22:51:08,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 22:51:08,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 22:51:08,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 22:51:08,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63271baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08, skipping insertion in model container [2021-12-15 22:51:08,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 22:51:08,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:51:08,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label59.c[4234,4247] [2021-12-15 22:51:08,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:51:08,463 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 22:51:08,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label59.c[4234,4247] [2021-12-15 22:51:08,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:51:08,548 INFO L208 MainTranslator]: Completed translation [2021-12-15 22:51:08,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08 WrapperNode [2021-12-15 22:51:08,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 22:51:08,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 22:51:08,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 22:51:08,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 22:51:08,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,615 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-12-15 22:51:08,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 22:51:08,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 22:51:08,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 22:51:08,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 22:51:08,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 22:51:08,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 22:51:08,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 22:51:08,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 22:51:08,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08" (1/1) ... [2021-12-15 22:51:08,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:51:08,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:51:08,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 22:51:08,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 22:51:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 22:51:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 22:51:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 22:51:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 22:51:08,874 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 22:51:08,875 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 22:51:09,645 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 22:51:09,654 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 22:51:09,655 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 22:51:09,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:51:09 BoogieIcfgContainer [2021-12-15 22:51:09,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 22:51:09,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 22:51:09,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 22:51:09,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 22:51:09,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:51:08" (1/3) ... [2021-12-15 22:51:09,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2ea6e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:51:09, skipping insertion in model container [2021-12-15 22:51:09,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:51:08" (2/3) ... [2021-12-15 22:51:09,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2ea6e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:51:09, skipping insertion in model container [2021-12-15 22:51:09,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:51:09" (3/3) ... [2021-12-15 22:51:09,662 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label59.c [2021-12-15 22:51:09,666 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 22:51:09,666 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 22:51:09,705 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 22:51:09,712 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 22:51:09,712 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 22:51:09,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:09,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-15 22:51:09,733 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:09,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:09,734 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:09,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:09,738 INFO L85 PathProgramCache]: Analyzing trace with hash 2102454322, now seen corresponding path program 1 times [2021-12-15 22:51:09,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:09,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570646157] [2021-12-15 22:51:09,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:09,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:10,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:51:10,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:10,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570646157] [2021-12-15 22:51:10,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570646157] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:10,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:10,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:51:10,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733126173] [2021-12-15 22:51:10,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:10,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:10,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:10,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:10,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:10,056 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:10,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:10,742 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-12-15 22:51:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:10,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-12-15 22:51:10,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:10,753 INFO L225 Difference]: With dead ends: 669 [2021-12-15 22:51:10,753 INFO L226 Difference]: Without dead ends: 360 [2021-12-15 22:51:10,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:10,758 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 196 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:10,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 30 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:51:10,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-12-15 22:51:10,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-12-15 22:51:10,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.6378830083565459) internal successors, (588), 359 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:10,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2021-12-15 22:51:10,797 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 40 [2021-12-15 22:51:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:10,798 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2021-12-15 22:51:10,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:10,798 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2021-12-15 22:51:10,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-15 22:51:10,801 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:10,801 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:10,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 22:51:10,801 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:10,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:10,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1576038760, now seen corresponding path program 1 times [2021-12-15 22:51:10,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:10,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363806686] [2021-12-15 22:51:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:10,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:10,857 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:51:10,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:10,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363806686] [2021-12-15 22:51:10,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363806686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:10,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:10,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:51:10,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877319950] [2021-12-15 22:51:10,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:10,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:10,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:10,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:10,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:10,861 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:11,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:11,348 INFO L93 Difference]: Finished difference Result 896 states and 1466 transitions. [2021-12-15 22:51:11,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:11,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-12-15 22:51:11,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:11,351 INFO L225 Difference]: With dead ends: 896 [2021-12-15 22:51:11,351 INFO L226 Difference]: Without dead ends: 538 [2021-12-15 22:51:11,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:11,353 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 117 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:11,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 51 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:51:11,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-12-15 22:51:11,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-12-15 22:51:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4823091247672253) internal successors, (796), 537 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:11,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 796 transitions. [2021-12-15 22:51:11,368 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 796 transitions. Word has length 105 [2021-12-15 22:51:11,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:11,368 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 796 transitions. [2021-12-15 22:51:11,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:11,369 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 796 transitions. [2021-12-15 22:51:11,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-15 22:51:11,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:11,371 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:11,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 22:51:11,371 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:11,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:11,372 INFO L85 PathProgramCache]: Analyzing trace with hash 335241793, now seen corresponding path program 1 times [2021-12-15 22:51:11,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:11,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149506831] [2021-12-15 22:51:11,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:11,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:11,444 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:51:11,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:11,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149506831] [2021-12-15 22:51:11,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149506831] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:11,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:11,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:51:11,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068533389] [2021-12-15 22:51:11,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:11,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:11,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:11,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:11,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:11,447 INFO L87 Difference]: Start difference. First operand 538 states and 796 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:11,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:11,955 INFO L93 Difference]: Finished difference Result 1608 states and 2383 transitions. [2021-12-15 22:51:11,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:11,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-15 22:51:11,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:11,958 INFO L225 Difference]: With dead ends: 1608 [2021-12-15 22:51:11,959 INFO L226 Difference]: Without dead ends: 1072 [2021-12-15 22:51:11,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:11,960 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:11,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:51:11,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-12-15 22:51:11,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-12-15 22:51:11,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.3828197945845004) internal successors, (1481), 1071 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1481 transitions. [2021-12-15 22:51:11,976 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1481 transitions. Word has length 106 [2021-12-15 22:51:11,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:11,977 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1481 transitions. [2021-12-15 22:51:11,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:11,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1481 transitions. [2021-12-15 22:51:11,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-15 22:51:11,979 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:11,979 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:11,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 22:51:11,980 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:11,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1532171556, now seen corresponding path program 1 times [2021-12-15 22:51:11,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:11,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089737661] [2021-12-15 22:51:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:11,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:12,016 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:51:12,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:12,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089737661] [2021-12-15 22:51:12,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089737661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:12,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:12,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:51:12,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172537508] [2021-12-15 22:51:12,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:12,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:12,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:12,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:12,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:12,019 INFO L87 Difference]: Start difference. First operand 1072 states and 1481 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:12,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:12,471 INFO L93 Difference]: Finished difference Result 2678 states and 3646 transitions. [2021-12-15 22:51:12,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:12,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-15 22:51:12,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:12,476 INFO L225 Difference]: With dead ends: 2678 [2021-12-15 22:51:12,476 INFO L226 Difference]: Without dead ends: 1608 [2021-12-15 22:51:12,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:12,478 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 125 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:12,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 106 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:51:12,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2021-12-15 22:51:12,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606. [2021-12-15 22:51:12,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.2934579439252336) internal successors, (2076), 1605 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:12,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2076 transitions. [2021-12-15 22:51:12,502 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2076 transitions. Word has length 108 [2021-12-15 22:51:12,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:12,502 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 2076 transitions. [2021-12-15 22:51:12,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:12,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2076 transitions. [2021-12-15 22:51:12,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-15 22:51:12,504 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:12,504 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:12,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 22:51:12,505 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:12,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:12,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1081133986, now seen corresponding path program 1 times [2021-12-15 22:51:12,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:12,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471340752] [2021-12-15 22:51:12,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:12,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:12,577 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:51:12,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:12,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471340752] [2021-12-15 22:51:12,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471340752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:12,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:12,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:51:12,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187297075] [2021-12-15 22:51:12,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:12,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:51:12,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:12,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:51:12,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:51:12,582 INFO L87 Difference]: Start difference. First operand 1606 states and 2076 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:13,332 INFO L93 Difference]: Finished difference Result 3388 states and 4358 transitions. [2021-12-15 22:51:13,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:51:13,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-15 22:51:13,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:13,337 INFO L225 Difference]: With dead ends: 3388 [2021-12-15 22:51:13,338 INFO L226 Difference]: Without dead ends: 1962 [2021-12-15 22:51:13,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:51:13,339 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 438 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:13,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 121 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 22:51:13,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-12-15 22:51:13,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-12-15 22:51:13,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.2641615255187886) internal successors, (2254), 1783 states have internal predecessors, (2254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2254 transitions. [2021-12-15 22:51:13,361 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2254 transitions. Word has length 109 [2021-12-15 22:51:13,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:13,361 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2254 transitions. [2021-12-15 22:51:13,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:13,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2254 transitions. [2021-12-15 22:51:13,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-15 22:51:13,362 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:13,362 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:13,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 22:51:13,362 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:13,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1707496834, now seen corresponding path program 1 times [2021-12-15 22:51:13,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:13,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590720441] [2021-12-15 22:51:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:13,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:13,428 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:51:13,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:13,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590720441] [2021-12-15 22:51:13,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590720441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:13,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:13,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:51:13,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037118082] [2021-12-15 22:51:13,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:13,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:51:13,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:13,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:51:13,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:51:13,429 INFO L87 Difference]: Start difference. First operand 1784 states and 2254 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:13,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:13,966 INFO L93 Difference]: Finished difference Result 3775 states and 4751 transitions. [2021-12-15 22:51:13,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:51:13,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-12-15 22:51:13,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:13,972 INFO L225 Difference]: With dead ends: 3775 [2021-12-15 22:51:13,972 INFO L226 Difference]: Without dead ends: 2142 [2021-12-15 22:51:13,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:51:13,973 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 105 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:13,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 122 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:51:13,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states. [2021-12-15 22:51:13,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 2140. [2021-12-15 22:51:13,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.1439925198690977) internal successors, (2447), 2139 states have internal predecessors, (2447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:14,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2447 transitions. [2021-12-15 22:51:14,000 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2447 transitions. Word has length 120 [2021-12-15 22:51:14,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:14,000 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2447 transitions. [2021-12-15 22:51:14,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2447 transitions. [2021-12-15 22:51:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-12-15 22:51:14,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:14,005 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:14,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 22:51:14,005 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:14,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1279617975, now seen corresponding path program 1 times [2021-12-15 22:51:14,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:14,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587864105] [2021-12-15 22:51:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:14,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:14,116 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-15 22:51:14,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:14,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587864105] [2021-12-15 22:51:14,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587864105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:14,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:14,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:51:14,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737412156] [2021-12-15 22:51:14,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:14,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:14,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:14,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:14,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:14,118 INFO L87 Difference]: Start difference. First operand 2140 states and 2447 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:14,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:14,519 INFO L93 Difference]: Finished difference Result 4100 states and 4713 transitions. [2021-12-15 22:51:14,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:14,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 320 [2021-12-15 22:51:14,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:14,525 INFO L225 Difference]: With dead ends: 4100 [2021-12-15 22:51:14,525 INFO L226 Difference]: Without dead ends: 2140 [2021-12-15 22:51:14,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:14,528 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:14,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 77 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:51:14,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-12-15 22:51:14,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2021-12-15 22:51:14,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.1290322580645162) internal successors, (2415), 2139 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:14,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2415 transitions. [2021-12-15 22:51:14,551 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2415 transitions. Word has length 320 [2021-12-15 22:51:14,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:14,552 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2415 transitions. [2021-12-15 22:51:14,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:14,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2415 transitions. [2021-12-15 22:51:14,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-12-15 22:51:14,555 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:14,556 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:14,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 22:51:14,556 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:14,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:14,558 INFO L85 PathProgramCache]: Analyzing trace with hash -150105723, now seen corresponding path program 1 times [2021-12-15 22:51:14,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:14,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808315369] [2021-12-15 22:51:14,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:14,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-12-15 22:51:14,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:14,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808315369] [2021-12-15 22:51:14,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808315369] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:14,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:14,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:51:14,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345226428] [2021-12-15 22:51:14,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:14,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:51:14,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:14,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:51:14,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:51:14,685 INFO L87 Difference]: Start difference. First operand 2140 states and 2415 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:15,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:15,171 INFO L93 Difference]: Finished difference Result 4336 states and 4904 transitions. [2021-12-15 22:51:15,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:51:15,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 331 [2021-12-15 22:51:15,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:15,179 INFO L225 Difference]: With dead ends: 4336 [2021-12-15 22:51:15,179 INFO L226 Difference]: Without dead ends: 2318 [2021-12-15 22:51:15,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:51:15,181 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:15,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:51:15,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-12-15 22:51:15,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2021-12-15 22:51:15,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.0878915381019167) internal successors, (2327), 2139 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:15,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2327 transitions. [2021-12-15 22:51:15,210 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2327 transitions. Word has length 331 [2021-12-15 22:51:15,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:15,212 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2327 transitions. [2021-12-15 22:51:15,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:15,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2327 transitions. [2021-12-15 22:51:15,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-12-15 22:51:15,215 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:15,216 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:15,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 22:51:15,219 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:15,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:15,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2021328189, now seen corresponding path program 1 times [2021-12-15 22:51:15,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:15,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102254078] [2021-12-15 22:51:15,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:15,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-15 22:51:15,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:15,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102254078] [2021-12-15 22:51:15,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102254078] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:15,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:15,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:51:15,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94213552] [2021-12-15 22:51:15,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:15,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:15,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:15,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:15,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:15,338 INFO L87 Difference]: Start difference. First operand 2140 states and 2327 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:15,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:15,697 INFO L93 Difference]: Finished difference Result 4456 states and 4869 transitions. [2021-12-15 22:51:15,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:15,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 420 [2021-12-15 22:51:15,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:15,702 INFO L225 Difference]: With dead ends: 4456 [2021-12-15 22:51:15,702 INFO L226 Difference]: Without dead ends: 2496 [2021-12-15 22:51:15,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:15,706 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 141 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:15,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 247 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:51:15,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-12-15 22:51:15,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2021-12-15 22:51:15,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0861723446893787) internal successors, (2710), 2495 states have internal predecessors, (2710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:15,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2710 transitions. [2021-12-15 22:51:15,731 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2710 transitions. Word has length 420 [2021-12-15 22:51:15,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:15,732 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2710 transitions. [2021-12-15 22:51:15,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:15,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2710 transitions. [2021-12-15 22:51:15,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-12-15 22:51:15,736 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:15,736 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:15,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 22:51:15,736 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:15,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:15,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1485861164, now seen corresponding path program 2 times [2021-12-15 22:51:15,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:15,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754800314] [2021-12-15 22:51:15,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:15,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:15,851 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-15 22:51:15,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:15,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754800314] [2021-12-15 22:51:15,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754800314] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:15,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:15,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:51:15,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531743675] [2021-12-15 22:51:15,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:15,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:15,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:15,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:15,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:15,853 INFO L87 Difference]: Start difference. First operand 2496 states and 2710 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:16,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:16,247 INFO L93 Difference]: Finished difference Result 5346 states and 5856 transitions. [2021-12-15 22:51:16,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:16,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 426 [2021-12-15 22:51:16,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:16,254 INFO L225 Difference]: With dead ends: 5346 [2021-12-15 22:51:16,254 INFO L226 Difference]: Without dead ends: 3030 [2021-12-15 22:51:16,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:16,256 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:16,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:51:16,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-12-15 22:51:16,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2496. [2021-12-15 22:51:16,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0813627254509017) internal successors, (2698), 2495 states have internal predecessors, (2698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:16,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2698 transitions. [2021-12-15 22:51:16,286 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2698 transitions. Word has length 426 [2021-12-15 22:51:16,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:16,286 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2698 transitions. [2021-12-15 22:51:16,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:16,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2698 transitions. [2021-12-15 22:51:16,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-12-15 22:51:16,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:16,290 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:16,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 22:51:16,290 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:16,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:16,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1077170215, now seen corresponding path program 1 times [2021-12-15 22:51:16,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:16,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911740993] [2021-12-15 22:51:16,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:16,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-12-15 22:51:16,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:16,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911740993] [2021-12-15 22:51:16,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911740993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:16,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:16,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:51:16,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793934356] [2021-12-15 22:51:16,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:16,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:16,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:16,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:16,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:16,385 INFO L87 Difference]: Start difference. First operand 2496 states and 2698 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:16,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:16,782 INFO L93 Difference]: Finished difference Result 5524 states and 6028 transitions. [2021-12-15 22:51:16,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:16,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 433 [2021-12-15 22:51:16,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:16,790 INFO L225 Difference]: With dead ends: 5524 [2021-12-15 22:51:16,790 INFO L226 Difference]: Without dead ends: 3208 [2021-12-15 22:51:16,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:16,792 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 111 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:16,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 243 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:51:16,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-12-15 22:51:16,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2021-12-15 22:51:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.069223573433115) internal successors, (3429), 3207 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:16,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3429 transitions. [2021-12-15 22:51:16,824 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3429 transitions. Word has length 433 [2021-12-15 22:51:16,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:16,825 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3429 transitions. [2021-12-15 22:51:16,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:16,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3429 transitions. [2021-12-15 22:51:16,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2021-12-15 22:51:16,831 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:16,832 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:16,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 22:51:16,832 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:16,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:16,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1877564992, now seen corresponding path program 1 times [2021-12-15 22:51:16,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:16,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200243898] [2021-12-15 22:51:16,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:16,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2021-12-15 22:51:16,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:16,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200243898] [2021-12-15 22:51:16,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200243898] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:16,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:51:16,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:51:16,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398524521] [2021-12-15 22:51:16,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:16,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:16,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:16,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:16,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:16,965 INFO L87 Difference]: Start difference. First operand 3208 states and 3429 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:17,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:17,367 INFO L93 Difference]: Finished difference Result 6770 states and 7304 transitions. [2021-12-15 22:51:17,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:17,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 588 [2021-12-15 22:51:17,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:17,377 INFO L225 Difference]: With dead ends: 6770 [2021-12-15 22:51:17,377 INFO L226 Difference]: Without dead ends: 3742 [2021-12-15 22:51:17,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:51:17,381 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:17,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 241 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:51:17,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-12-15 22:51:17,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2021-12-15 22:51:17,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0678962844159317) internal successors, (3995), 3741 states have internal predecessors, (3995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3995 transitions. [2021-12-15 22:51:17,426 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3995 transitions. Word has length 588 [2021-12-15 22:51:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:17,427 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 3995 transitions. [2021-12-15 22:51:17,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3995 transitions. [2021-12-15 22:51:17,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2021-12-15 22:51:17,431 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:17,431 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:17,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 22:51:17,431 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:17,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:17,432 INFO L85 PathProgramCache]: Analyzing trace with hash 666168077, now seen corresponding path program 1 times [2021-12-15 22:51:17,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:17,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141209204] [2021-12-15 22:51:17,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:17,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 656 proven. 93 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2021-12-15 22:51:17,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:17,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141209204] [2021-12-15 22:51:17,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141209204] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:51:17,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496726548] [2021-12-15 22:51:17,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:17,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:51:17,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:51:17,616 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) [2021-12-15 22:51:17,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 22:51:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:17,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:51:17,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:51:18,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2021-12-15 22:51:18,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:51:18,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496726548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:18,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:51:18,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:51:18,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440014612] [2021-12-15 22:51:18,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:18,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:18,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:18,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:18,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:51:18,765 INFO L87 Difference]: Start difference. First operand 3742 states and 3995 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:19,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:19,220 INFO L93 Difference]: Finished difference Result 8372 states and 8944 transitions. [2021-12-15 22:51:19,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:19,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 606 [2021-12-15 22:51:19,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:19,229 INFO L225 Difference]: With dead ends: 8372 [2021-12-15 22:51:19,229 INFO L226 Difference]: Without dead ends: 4098 [2021-12-15 22:51:19,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:51:19,233 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 141 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:19,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 247 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:51:19,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-12-15 22:51:19,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3564. [2021-12-15 22:51:19,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0642716811675554) internal successors, (3792), 3563 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:19,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3792 transitions. [2021-12-15 22:51:19,271 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3792 transitions. Word has length 606 [2021-12-15 22:51:19,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:19,271 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3792 transitions. [2021-12-15 22:51:19,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:19,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3792 transitions. [2021-12-15 22:51:19,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2021-12-15 22:51:19,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:19,289 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:19,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 22:51:19,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-15 22:51:19,506 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:19,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:19,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1627646830, now seen corresponding path program 1 times [2021-12-15 22:51:19,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:19,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531255502] [2021-12-15 22:51:19,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:19,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 1086 proven. 93 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2021-12-15 22:51:19,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:19,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531255502] [2021-12-15 22:51:19,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531255502] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:51:19,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479609575] [2021-12-15 22:51:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:19,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:51:19,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:51:19,691 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) [2021-12-15 22:51:19,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 22:51:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:19,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:51:19,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:51:20,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2021-12-15 22:51:20,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:51:20,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479609575] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:20,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:51:20,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:51:20,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807787432] [2021-12-15 22:51:20,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:20,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:20,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:20,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:20,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:51:20,598 INFO L87 Difference]: Start difference. First operand 3564 states and 3792 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:20,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:20,933 INFO L93 Difference]: Finished difference Result 7660 states and 8165 transitions. [2021-12-15 22:51:20,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:20,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 715 [2021-12-15 22:51:20,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:20,963 INFO L225 Difference]: With dead ends: 7660 [2021-12-15 22:51:20,963 INFO L226 Difference]: Without dead ends: 3920 [2021-12-15 22:51:20,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:51:20,966 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 141 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:20,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 243 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:51:20,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-12-15 22:51:20,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2021-12-15 22:51:21,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0606230704462531) internal successors, (3779), 3563 states have internal predecessors, (3779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:21,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3779 transitions. [2021-12-15 22:51:21,027 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3779 transitions. Word has length 715 [2021-12-15 22:51:21,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:21,027 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3779 transitions. [2021-12-15 22:51:21,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:21,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3779 transitions. [2021-12-15 22:51:21,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2021-12-15 22:51:21,033 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:21,033 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:21,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 22:51:21,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-15 22:51:21,244 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:21,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:21,245 INFO L85 PathProgramCache]: Analyzing trace with hash 726887105, now seen corresponding path program 1 times [2021-12-15 22:51:21,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:21,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023647776] [2021-12-15 22:51:21,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:21,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:21,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1774 backedges. 1194 proven. 93 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2021-12-15 22:51:21,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:21,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023647776] [2021-12-15 22:51:21,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023647776] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:51:21,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357198092] [2021-12-15 22:51:21,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:21,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:51:21,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:51:21,536 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:51:21,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 22:51:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:21,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:51:21,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:51:22,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1774 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 1547 trivial. 0 not checked. [2021-12-15 22:51:22,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:51:22,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357198092] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:22,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:51:22,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:51:22,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915805068] [2021-12-15 22:51:22,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:22,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:22,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:22,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:22,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:51:22,415 INFO L87 Difference]: Start difference. First operand 3564 states and 3779 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:22,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:22,772 INFO L93 Difference]: Finished difference Result 7304 states and 7763 transitions. [2021-12-15 22:51:22,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:22,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 742 [2021-12-15 22:51:22,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:22,777 INFO L225 Difference]: With dead ends: 7304 [2021-12-15 22:51:22,777 INFO L226 Difference]: Without dead ends: 3208 [2021-12-15 22:51:22,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 745 GetRequests, 741 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:51:22,781 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 141 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:22,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 240 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:51:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-12-15 22:51:22,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2674. [2021-12-15 22:51:22,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0617283950617284) internal successors, (2838), 2673 states have internal predecessors, (2838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:22,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2838 transitions. [2021-12-15 22:51:22,804 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2838 transitions. Word has length 742 [2021-12-15 22:51:22,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:22,804 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2838 transitions. [2021-12-15 22:51:22,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2838 transitions. [2021-12-15 22:51:22,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2021-12-15 22:51:22,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:51:22,810 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:22,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 22:51:23,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:51:23,027 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:51:23,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:51:23,028 INFO L85 PathProgramCache]: Analyzing trace with hash -745145664, now seen corresponding path program 1 times [2021-12-15 22:51:23,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:51:23,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576521183] [2021-12-15 22:51:23,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:23,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:51:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 1253 proven. 93 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-12-15 22:51:23,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:51:23,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576521183] [2021-12-15 22:51:23,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576521183] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:51:23,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792016241] [2021-12-15 22:51:23,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:51:23,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:51:23,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:51:23,214 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:51:23,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 22:51:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:51:23,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:51:23,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:51:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 743 proven. 0 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2021-12-15 22:51:24,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:51:24,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792016241] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:51:24,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:51:24,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:51:24,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286937059] [2021-12-15 22:51:24,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:51:24,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:51:24,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:51:24,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:51:24,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:51:24,381 INFO L87 Difference]: Start difference. First operand 2674 states and 2838 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:24,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:51:24,711 INFO L93 Difference]: Finished difference Result 5166 states and 5494 transitions. [2021-12-15 22:51:24,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:51:24,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 768 [2021-12-15 22:51:24,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:51:24,712 INFO L225 Difference]: With dead ends: 5166 [2021-12-15 22:51:24,712 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 22:51:24,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 767 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:51:24,715 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 66 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:51:24,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 208 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:51:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 22:51:24,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 22:51:24,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:24,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 22:51:24,716 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 768 [2021-12-15 22:51:24,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:51:24,716 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 22:51:24,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:51:24,716 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 22:51:24,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 22:51:24,718 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 22:51:24,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-15 22:51:24,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-15 22:51:24,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 22:51:25,310 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-12-15 22:51:25,310 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-12-15 22:51:25,310 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-12-15 22:51:25,310 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-12-15 22:51:25,310 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-12-15 22:51:25,310 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,311 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,311 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,311 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-12-15 22:51:25,311 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-12-15 22:51:25,311 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-12-15 22:51:25,311 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-12-15 22:51:25,311 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-12-15 22:51:25,311 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-12-15 22:51:25,312 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-12-15 22:51:25,312 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-12-15 22:51:25,312 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,312 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,312 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,312 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-12-15 22:51:25,312 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-15 22:51:25,312 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-12-15 22:51:25,312 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-12-15 22:51:25,313 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-12-15 22:51:25,313 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-12-15 22:51:25,313 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-12-15 22:51:25,313 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-12-15 22:51:25,313 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-12-15 22:51:25,313 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,313 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,313 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,313 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-12-15 22:51:25,314 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-12-15 22:51:25,314 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-12-15 22:51:25,314 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-12-15 22:51:25,314 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-12-15 22:51:25,314 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-12-15 22:51:25,314 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-12-15 22:51:25,314 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,314 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,315 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,315 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-12-15 22:51:25,315 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-12-15 22:51:25,315 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-15 22:51:25,315 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-12-15 22:51:25,315 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-12-15 22:51:25,315 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-12-15 22:51:25,315 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-12-15 22:51:25,315 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-12-15 22:51:25,316 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,316 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,316 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,316 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-12-15 22:51:25,316 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-12-15 22:51:25,316 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-12-15 22:51:25,316 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-12-15 22:51:25,316 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-12-15 22:51:25,317 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-12-15 22:51:25,317 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-12-15 22:51:25,317 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-12-15 22:51:25,317 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,317 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,317 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,317 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-12-15 22:51:25,317 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-12-15 22:51:25,317 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-12-15 22:51:25,318 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-12-15 22:51:25,318 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-12-15 22:51:25,318 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-12-15 22:51:25,318 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-12-15 22:51:25,318 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-12-15 22:51:25,318 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-12-15 22:51:25,318 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,318 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,318 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,319 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-12-15 22:51:25,319 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-12-15 22:51:25,319 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-12-15 22:51:25,319 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-12-15 22:51:25,319 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-12-15 22:51:25,319 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-12-15 22:51:25,319 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-12-15 22:51:25,319 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 22:51:25,319 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,320 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,320 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,320 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-12-15 22:51:25,320 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-12-15 22:51:25,320 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-12-15 22:51:25,320 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-12-15 22:51:25,320 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-12-15 22:51:25,320 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-12-15 22:51:25,320 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-12-15 22:51:25,320 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-12-15 22:51:25,321 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-12-15 22:51:25,321 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,321 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,321 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,321 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-12-15 22:51:25,321 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-15 22:51:25,321 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-12-15 22:51:25,321 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-12-15 22:51:25,321 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-12-15 22:51:25,322 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-12-15 22:51:25,322 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-12-15 22:51:25,322 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-12-15 22:51:25,322 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,322 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,322 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,322 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-12-15 22:51:25,322 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-12-15 22:51:25,322 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-12-15 22:51:25,323 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 22:51:25,323 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-12-15 22:51:25,323 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 134) no Hoare annotation was computed. [2021-12-15 22:51:25,323 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-12-15 22:51:25,323 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-12-15 22:51:25,323 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-12-15 22:51:25,323 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-12-15 22:51:25,323 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,324 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,324 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,324 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-12-15 22:51:25,324 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-12-15 22:51:25,324 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-15 22:51:25,324 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-12-15 22:51:25,324 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-12-15 22:51:25,324 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-12-15 22:51:25,324 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-12-15 22:51:25,325 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-12-15 22:51:25,325 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,325 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,325 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,325 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-12-15 22:51:25,325 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-15 22:51:25,325 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-12-15 22:51:25,325 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-12-15 22:51:25,325 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-12-15 22:51:25,326 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-12-15 22:51:25,326 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-12-15 22:51:25,326 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-12-15 22:51:25,326 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,326 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,326 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,326 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-12-15 22:51:25,326 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-12-15 22:51:25,326 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-12-15 22:51:25,326 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-12-15 22:51:25,327 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-12-15 22:51:25,327 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-12-15 22:51:25,327 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-12-15 22:51:25,327 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-12-15 22:51:25,327 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,327 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,327 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,327 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-12-15 22:51:25,327 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-12-15 22:51:25,328 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-12-15 22:51:25,328 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-12-15 22:51:25,328 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-12-15 22:51:25,328 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-12-15 22:51:25,328 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-12-15 22:51:25,328 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-12-15 22:51:25,328 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,328 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,329 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,329 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-12-15 22:51:25,329 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-15 22:51:25,329 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-12-15 22:51:25,329 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-12-15 22:51:25,329 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-12-15 22:51:25,329 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-12-15 22:51:25,329 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-12-15 22:51:25,329 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-12-15 22:51:25,329 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,330 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,330 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-12-15 22:51:25,330 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-15 22:51:25,330 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-12-15 22:51:25,330 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-12-15 22:51:25,330 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-12-15 22:51:25,330 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-12-15 22:51:25,330 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-12-15 22:51:25,330 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-12-15 22:51:25,331 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,331 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,331 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-12-15 22:51:25,331 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 22:51:25,331 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-12-15 22:51:25,331 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-12-15 22:51:25,331 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-12-15 22:51:25,331 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-12-15 22:51:25,331 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-12-15 22:51:25,332 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,332 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,332 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and .cse0 (<= 7 ~a21~0)) (and (<= 9 ~a15~0) .cse0) (and .cse0 (<= ~a15~0 7)) (and .cse0 (<= 518246 ~a12~0)) (and (<= ~a15~0 5) (<= (+ ~a12~0 49) 0) (<= ~a21~0 7)))) [2021-12-15 22:51:25,332 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-12-15 22:51:25,332 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-12-15 22:51:25,332 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-15 22:51:25,332 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-12-15 22:51:25,333 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-12-15 22:51:25,333 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-12-15 22:51:25,333 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-12-15 22:51:25,333 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-12-15 22:51:25,333 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,333 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,333 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-12-15 22:51:25,333 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-12-15 22:51:25,333 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-12-15 22:51:25,334 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-15 22:51:25,334 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-12-15 22:51:25,334 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-12-15 22:51:25,334 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-12-15 22:51:25,334 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-12-15 22:51:25,334 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,334 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,334 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 22:51:25,334 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-12-15 22:51:25,335 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-12-15 22:51:25,335 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-15 22:51:25,335 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-12-15 22:51:25,335 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-12-15 22:51:25,335 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-12-15 22:51:25,335 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,335 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,335 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-12-15 22:51:25,335 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,336 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-12-15 22:51:25,336 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and .cse0 (<= 7 ~a21~0)) (and (<= 9 ~a15~0) .cse0) (and .cse0 (<= ~a15~0 7)) (and .cse0 (<= 518246 ~a12~0)) (and (<= ~a15~0 5) (<= (+ ~a12~0 49) 0) (<= ~a21~0 7)))) [2021-12-15 22:51:25,336 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-12-15 22:51:25,336 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-12-15 22:51:25,336 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-15 22:51:25,336 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-12-15 22:51:25,336 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-12-15 22:51:25,336 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-12-15 22:51:25,336 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-12-15 22:51:25,337 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-12-15 22:51:25,337 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-12-15 22:51:25,337 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,337 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,337 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-12-15 22:51:25,337 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-12-15 22:51:25,337 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-12-15 22:51:25,337 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-12-15 22:51:25,337 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-12-15 22:51:25,340 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:51:25,341 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 22:51:25,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:51:25 BoogieIcfgContainer [2021-12-15 22:51:25,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 22:51:25,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 22:51:25,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 22:51:25,352 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 22:51:25,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:51:09" (3/4) ... [2021-12-15 22:51:25,354 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 22:51:25,369 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 22:51:25,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 22:51:25,371 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 22:51:25,371 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 22:51:25,462 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 22:51:25,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 22:51:25,463 INFO L158 Benchmark]: Toolchain (without parser) took 17301.50ms. Allocated memory was 107.0MB in the beginning and 325.1MB in the end (delta: 218.1MB). Free memory was 72.2MB in the beginning and 224.3MB in the end (delta: -152.1MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2021-12-15 22:51:25,464 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory was 36.1MB in the beginning and 36.1MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 22:51:25,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.42ms. Allocated memory is still 107.0MB. Free memory was 72.0MB in the beginning and 61.9MB in the end (delta: 10.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 22:51:25,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.63ms. Allocated memory is still 107.0MB. Free memory was 61.9MB in the beginning and 51.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 22:51:25,465 INFO L158 Benchmark]: Boogie Preprocessor took 74.96ms. Allocated memory is still 107.0MB. Free memory was 51.9MB in the beginning and 46.4MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 22:51:25,470 INFO L158 Benchmark]: RCFGBuilder took 964.72ms. Allocated memory is still 107.0MB. Free memory was 45.9MB in the beginning and 50.2MB in the end (delta: -4.2MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2021-12-15 22:51:25,470 INFO L158 Benchmark]: TraceAbstraction took 15693.97ms. Allocated memory was 107.0MB in the beginning and 325.1MB in the end (delta: 218.1MB). Free memory was 49.6MB in the beginning and 243.1MB in the end (delta: -193.6MB). Peak memory consumption was 170.9MB. Max. memory is 16.1GB. [2021-12-15 22:51:25,470 INFO L158 Benchmark]: Witness Printer took 110.20ms. Allocated memory is still 325.1MB. Free memory was 243.1MB in the beginning and 224.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 22:51:25,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory was 36.1MB in the beginning and 36.1MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.42ms. Allocated memory is still 107.0MB. Free memory was 72.0MB in the beginning and 61.9MB in the end (delta: 10.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.63ms. Allocated memory is still 107.0MB. Free memory was 61.9MB in the beginning and 51.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.96ms. Allocated memory is still 107.0MB. Free memory was 51.9MB in the beginning and 46.4MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 964.72ms. Allocated memory is still 107.0MB. Free memory was 45.9MB in the beginning and 50.2MB in the end (delta: -4.2MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * TraceAbstraction took 15693.97ms. Allocated memory was 107.0MB in the beginning and 325.1MB in the end (delta: 218.1MB). Free memory was 49.6MB in the beginning and 243.1MB in the end (delta: -193.6MB). Peak memory consumption was 170.9MB. Max. memory is 16.1GB. * Witness Printer took 110.20ms. Allocated memory is still 325.1MB. Free memory was 243.1MB in the beginning and 224.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 134]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.6s, OverallIterations: 16, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2320 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2320 mSDsluCounter, 2495 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 89 mSDsCounter, 1048 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8052 IncrementalHoareTripleChecker+Invalid, 9100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1048 mSolverCounterUnsat, 2406 mSDtfsCounter, 8052 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2876 GetRequests, 2844 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3742occurred in iteration=12, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 2318 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 61 NumberOfFragments, 83 HoareAnnotationTreeSize, 3 FomulaSimplifications, 310 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1110 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 8768 NumberOfCodeBlocks, 8768 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 8748 ConstructedInterpolants, 0 QuantifiedInterpolants, 28811 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3581 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 20 InterpolantComputations, 16 PerfectInterpolantSequences, 16129/16501 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((a24 == 1 && 7 <= a21) || (9 <= a15 && a24 == 1)) || (a24 == 1 && a15 <= 7)) || (a24 == 1 && 518246 <= a12)) || ((a15 <= 5 && a12 + 49 <= 0) && a21 <= 7) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((a24 == 1 && 7 <= a21) || (9 <= a15 && a24 == 1)) || (a24 == 1 && a15 <= 7)) || (a24 == 1 && 518246 <= a12)) || ((a15 <= 5 && a12 + 49 <= 0) && a21 <= 7) RESULT: Ultimate proved your program to be correct! [2021-12-15 22:51:25,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE