./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label56.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/Problem11_label56.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 77c0c06cf345be89a7bfdea692ab0197740d9f5ad98baaf39e02029ee2fea03a --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 04:26:22,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 04:26:22,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 04:26:23,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 04:26:23,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 04:26:23,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 04:26:23,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 04:26:23,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 04:26:23,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 04:26:23,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 04:26:23,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 04:26:23,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 04:26:23,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 04:26:23,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 04:26:23,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 04:26:23,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 04:26:23,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 04:26:23,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 04:26:23,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 04:26:23,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 04:26:23,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 04:26:23,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 04:26:23,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 04:26:23,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 04:26:23,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 04:26:23,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 04:26:23,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 04:26:23,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 04:26:23,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 04:26:23,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 04:26:23,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 04:26:23,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 04:26:23,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 04:26:23,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 04:26:23,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 04:26:23,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 04:26:23,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 04:26:23,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 04:26:23,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 04:26:23,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 04:26:23,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 04:26:23,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 04:26:23,137 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 04:26:23,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 04:26:23,141 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 04:26:23,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 04:26:23,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 04:26:23,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 04:26:23,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 04:26:23,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 04:26:23,144 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 04:26:23,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 04:26:23,145 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 04:26:23,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 04:26:23,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 04:26:23,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 04:26:23,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 04:26:23,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 04:26:23,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 04:26:23,146 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 04:26:23,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 04:26:23,146 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 04:26:23,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 04:26:23,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 04:26:23,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 04:26:23,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 04:26:23,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:26:23,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 04:26:23,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 04:26:23,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 04:26:23,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 04:26:23,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 04:26:23,149 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 04:26:23,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 04:26:23,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 04:26:23,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 04:26:23,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77c0c06cf345be89a7bfdea692ab0197740d9f5ad98baaf39e02029ee2fea03a [2021-12-17 04:26:23,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 04:26:23,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 04:26:23,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 04:26:23,454 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 04:26:23,455 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 04:26:23,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label56.c [2021-12-17 04:26:23,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1c713244/fe5b38acb6594876818a113a95c1a194/FLAGb246b22eb [2021-12-17 04:26:24,070 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 04:26:24,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label56.c [2021-12-17 04:26:24,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1c713244/fe5b38acb6594876818a113a95c1a194/FLAGb246b22eb [2021-12-17 04:26:24,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1c713244/fe5b38acb6594876818a113a95c1a194 [2021-12-17 04:26:24,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 04:26:24,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 04:26:24,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 04:26:24,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 04:26:24,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 04:26:24,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:26:24" (1/1) ... [2021-12-17 04:26:24,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e749821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:24, skipping insertion in model container [2021-12-17 04:26:24,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:26:24" (1/1) ... [2021-12-17 04:26:24,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 04:26:24,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 04:26:24,718 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/Problem11_label56.c[5994,6007] [2021-12-17 04:26:24,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:26:24,919 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 04:26:24,943 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/Problem11_label56.c[5994,6007] [2021-12-17 04:26:25,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:26:25,102 INFO L208 MainTranslator]: Completed translation [2021-12-17 04:26:25,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25 WrapperNode [2021-12-17 04:26:25,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 04:26:25,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 04:26:25,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 04:26:25,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 04:26:25,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25" (1/1) ... [2021-12-17 04:26:25,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25" (1/1) ... [2021-12-17 04:26:25,240 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-12-17 04:26:25,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 04:26:25,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 04:26:25,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 04:26:25,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 04:26:25,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25" (1/1) ... [2021-12-17 04:26:25,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25" (1/1) ... [2021-12-17 04:26:25,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25" (1/1) ... [2021-12-17 04:26:25,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25" (1/1) ... [2021-12-17 04:26:25,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25" (1/1) ... [2021-12-17 04:26:25,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25" (1/1) ... [2021-12-17 04:26:25,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25" (1/1) ... [2021-12-17 04:26:25,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 04:26:25,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 04:26:25,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 04:26:25,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 04:26:25,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25" (1/1) ... [2021-12-17 04:26:25,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:26:25,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:26:25,396 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) [2021-12-17 04:26:25,420 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 [2021-12-17 04:26:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 04:26:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 04:26:25,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 04:26:25,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 04:26:25,495 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 04:26:25,497 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 04:26:26,883 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 04:26:26,895 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 04:26:26,895 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 04:26:26,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:26:26 BoogieIcfgContainer [2021-12-17 04:26:26,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 04:26:26,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 04:26:26,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 04:26:26,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 04:26:26,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:26:24" (1/3) ... [2021-12-17 04:26:26,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bb73a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:26:26, skipping insertion in model container [2021-12-17 04:26:26,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:25" (2/3) ... [2021-12-17 04:26:26,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bb73a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:26:26, skipping insertion in model container [2021-12-17 04:26:26,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:26:26" (3/3) ... [2021-12-17 04:26:26,908 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label56.c [2021-12-17 04:26:26,913 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 04:26:26,913 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 04:26:26,966 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 04:26:26,973 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 [2021-12-17 04:26:26,974 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 04:26:26,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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) [2021-12-17 04:26:27,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-17 04:26:27,006 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:27,007 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, 1] [2021-12-17 04:26:27,008 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:27,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:27,013 INFO L85 PathProgramCache]: Analyzing trace with hash 751578873, now seen corresponding path program 1 times [2021-12-17 04:26:27,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:27,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398494880] [2021-12-17 04:26:27,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:27,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:27,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:27,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398494880] [2021-12-17 04:26:27,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398494880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:27,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:27,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:26:27,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109881045] [2021-12-17 04:26:27,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:27,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:27,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:27,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:27,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:27,305 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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) [2021-12-17 04:26:28,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:28,320 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-12-17 04:26:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:28,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2021-12-17 04:26:28,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:28,335 INFO L225 Difference]: With dead ends: 761 [2021-12-17 04:26:28,335 INFO L226 Difference]: Without dead ends: 413 [2021-12-17 04:26:28,339 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 [2021-12-17 04:26:28,342 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 187 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:28,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 222 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 04:26:28,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-12-17 04:26:28,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-12-17 04:26:28,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 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) [2021-12-17 04:26:28,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-12-17 04:26:28,393 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 41 [2021-12-17 04:26:28,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:28,394 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-12-17 04:26:28,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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) [2021-12-17 04:26:28,394 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-12-17 04:26:28,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 04:26:28,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:28,397 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, 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] [2021-12-17 04:26:28,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 04:26:28,398 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:28,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:28,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1616931328, now seen corresponding path program 1 times [2021-12-17 04:26:28,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:28,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590457132] [2021-12-17 04:26:28,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:28,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:28,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:28,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590457132] [2021-12-17 04:26:28,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590457132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:28,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:28,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:26:28,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998001546] [2021-12-17 04:26:28,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:28,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:28,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:28,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:28,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:28,514 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 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) [2021-12-17 04:26:29,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:29,232 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-12-17 04:26:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:29,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 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 [2021-12-17 04:26:29,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:29,236 INFO L225 Difference]: With dead ends: 1211 [2021-12-17 04:26:29,236 INFO L226 Difference]: Without dead ends: 800 [2021-12-17 04:26:29,237 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 [2021-12-17 04:26:29,238 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:29,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 120 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:29,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-12-17 04:26:29,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-12-17 04:26:29,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3743654822335025) internal successors, (1083), 788 states have internal predecessors, (1083), 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) [2021-12-17 04:26:29,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2021-12-17 04:26:29,285 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 109 [2021-12-17 04:26:29,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:29,288 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2021-12-17 04:26:29,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 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) [2021-12-17 04:26:29,288 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2021-12-17 04:26:29,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-17 04:26:29,295 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:29,296 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, 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] [2021-12-17 04:26:29,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 04:26:29,298 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:29,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1753081093, now seen corresponding path program 1 times [2021-12-17 04:26:29,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:29,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202594455] [2021-12-17 04:26:29,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:29,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:29,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:29,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202594455] [2021-12-17 04:26:29,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202594455] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:29,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:29,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:29,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816169780] [2021-12-17 04:26:29,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:29,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:26:29,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:29,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:26:29,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:29,480 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-12-17 04:26:30,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:30,743 INFO L93 Difference]: Finished difference Result 2505 states and 3425 transitions. [2021-12-17 04:26:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:26:30,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2021-12-17 04:26:30,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:30,750 INFO L225 Difference]: With dead ends: 2505 [2021-12-17 04:26:30,750 INFO L226 Difference]: Without dead ends: 1718 [2021-12-17 04:26:30,751 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 [2021-12-17 04:26:30,752 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 483 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:30,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 218 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 04:26:30,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2021-12-17 04:26:30,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1714. [2021-12-17 04:26:30,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1713 states have (on average 1.2259194395796849) internal successors, (2100), 1713 states have internal predecessors, (2100), 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) [2021-12-17 04:26:30,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2100 transitions. [2021-12-17 04:26:30,784 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2100 transitions. Word has length 111 [2021-12-17 04:26:30,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:30,784 INFO L470 AbstractCegarLoop]: Abstraction has 1714 states and 2100 transitions. [2021-12-17 04:26:30,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-12-17 04:26:30,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2100 transitions. [2021-12-17 04:26:30,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-17 04:26:30,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:30,786 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:30,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 04:26:30,786 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:30,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:30,787 INFO L85 PathProgramCache]: Analyzing trace with hash -5295579, now seen corresponding path program 1 times [2021-12-17 04:26:30,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:30,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954949551] [2021-12-17 04:26:30,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:30,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:30,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:30,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954949551] [2021-12-17 04:26:30,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954949551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:30,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:30,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:30,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55007581] [2021-12-17 04:26:30,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:30,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:26:30,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:30,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:26:30,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:30,920 INFO L87 Difference]: Start difference. First operand 1714 states and 2100 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-12-17 04:26:32,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:32,093 INFO L93 Difference]: Finished difference Result 5296 states and 6683 transitions. [2021-12-17 04:26:32,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:26:32,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 states have internal predecessors, (168), 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 168 [2021-12-17 04:26:32,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:32,107 INFO L225 Difference]: With dead ends: 5296 [2021-12-17 04:26:32,107 INFO L226 Difference]: Without dead ends: 3768 [2021-12-17 04:26:32,109 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 [2021-12-17 04:26:32,111 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 354 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:32,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 86 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 04:26:32,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2021-12-17 04:26:32,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3767. [2021-12-17 04:26:32,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3767 states, 3766 states have (on average 1.228624535315985) internal successors, (4627), 3766 states have internal predecessors, (4627), 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) [2021-12-17 04:26:32,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3767 states to 3767 states and 4627 transitions. [2021-12-17 04:26:32,171 INFO L78 Accepts]: Start accepts. Automaton has 3767 states and 4627 transitions. Word has length 168 [2021-12-17 04:26:32,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:32,172 INFO L470 AbstractCegarLoop]: Abstraction has 3767 states and 4627 transitions. [2021-12-17 04:26:32,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-12-17 04:26:32,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3767 states and 4627 transitions. [2021-12-17 04:26:32,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-17 04:26:32,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:32,175 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-17 04:26:32,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 04:26:32,175 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:32,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:32,176 INFO L85 PathProgramCache]: Analyzing trace with hash 13927688, now seen corresponding path program 1 times [2021-12-17 04:26:32,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:32,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778119996] [2021-12-17 04:26:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:32,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:32,292 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-17 04:26:32,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:32,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778119996] [2021-12-17 04:26:32,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778119996] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:32,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:32,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:32,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106487287] [2021-12-17 04:26:32,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:32,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:32,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:32,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:32,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:32,296 INFO L87 Difference]: Start difference. First operand 3767 states and 4627 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2021-12-17 04:26:33,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:33,082 INFO L93 Difference]: Finished difference Result 7711 states and 9664 transitions. [2021-12-17 04:26:33,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:33,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 223 [2021-12-17 04:26:33,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:33,099 INFO L225 Difference]: With dead ends: 7711 [2021-12-17 04:26:33,099 INFO L226 Difference]: Without dead ends: 4689 [2021-12-17 04:26:33,103 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 [2021-12-17 04:26:33,104 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 168 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:33,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 365 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:33,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4689 states. [2021-12-17 04:26:33,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4689 to 4689. [2021-12-17 04:26:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 4688 states have (on average 1.2361348122866893) internal successors, (5795), 4688 states have internal predecessors, (5795), 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) [2021-12-17 04:26:33,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 5795 transitions. [2021-12-17 04:26:33,178 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 5795 transitions. Word has length 223 [2021-12-17 04:26:33,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:33,179 INFO L470 AbstractCegarLoop]: Abstraction has 4689 states and 5795 transitions. [2021-12-17 04:26:33,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2021-12-17 04:26:33,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 5795 transitions. [2021-12-17 04:26:33,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-12-17 04:26:33,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:33,183 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-17 04:26:33,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 04:26:33,184 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:33,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:33,185 INFO L85 PathProgramCache]: Analyzing trace with hash -460158169, now seen corresponding path program 1 times [2021-12-17 04:26:33,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:33,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263705588] [2021-12-17 04:26:33,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:33,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-17 04:26:33,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:33,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263705588] [2021-12-17 04:26:33,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263705588] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:33,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:33,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:33,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319730037] [2021-12-17 04:26:33,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:33,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:33,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:33,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:33,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:33,299 INFO L87 Difference]: Start difference. First operand 4689 states and 5795 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-12-17 04:26:34,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:34,163 INFO L93 Difference]: Finished difference Result 11040 states and 13827 transitions. [2021-12-17 04:26:34,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:34,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 234 [2021-12-17 04:26:34,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:34,187 INFO L225 Difference]: With dead ends: 11040 [2021-12-17 04:26:34,188 INFO L226 Difference]: Without dead ends: 6537 [2021-12-17 04:26:34,194 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 [2021-12-17 04:26:34,195 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 155 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:34,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 391 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 04:26:34,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6537 states. [2021-12-17 04:26:34,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6537 to 6344. [2021-12-17 04:26:34,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6344 states, 6343 states have (on average 1.2148825476903673) internal successors, (7706), 6343 states have internal predecessors, (7706), 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) [2021-12-17 04:26:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6344 states to 6344 states and 7706 transitions. [2021-12-17 04:26:34,310 INFO L78 Accepts]: Start accepts. Automaton has 6344 states and 7706 transitions. Word has length 234 [2021-12-17 04:26:34,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:34,310 INFO L470 AbstractCegarLoop]: Abstraction has 6344 states and 7706 transitions. [2021-12-17 04:26:34,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-12-17 04:26:34,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6344 states and 7706 transitions. [2021-12-17 04:26:34,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-12-17 04:26:34,315 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:34,315 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-17 04:26:34,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 04:26:34,316 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:34,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:34,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1191331673, now seen corresponding path program 1 times [2021-12-17 04:26:34,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:34,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098043355] [2021-12-17 04:26:34,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:34,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-12-17 04:26:34,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:34,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098043355] [2021-12-17 04:26:34,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098043355] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:34,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:34,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:34,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519891815] [2021-12-17 04:26:34,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:34,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:34,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:34,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:34,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:34,450 INFO L87 Difference]: Start difference. First operand 6344 states and 7706 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-12-17 04:26:35,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:35,271 INFO L93 Difference]: Finished difference Result 15814 states and 19590 transitions. [2021-12-17 04:26:35,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:35,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 254 [2021-12-17 04:26:35,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:35,303 INFO L225 Difference]: With dead ends: 15814 [2021-12-17 04:26:35,303 INFO L226 Difference]: Without dead ends: 9841 [2021-12-17 04:26:35,313 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 [2021-12-17 04:26:35,314 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 171 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:35,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 145 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:35,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9841 states. [2021-12-17 04:26:35,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9841 to 9841. [2021-12-17 04:26:35,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9841 states, 9840 states have (on average 1.2147357723577237) internal successors, (11953), 9840 states have internal predecessors, (11953), 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) [2021-12-17 04:26:35,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9841 states to 9841 states and 11953 transitions. [2021-12-17 04:26:35,467 INFO L78 Accepts]: Start accepts. Automaton has 9841 states and 11953 transitions. Word has length 254 [2021-12-17 04:26:35,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:35,468 INFO L470 AbstractCegarLoop]: Abstraction has 9841 states and 11953 transitions. [2021-12-17 04:26:35,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-12-17 04:26:35,468 INFO L276 IsEmpty]: Start isEmpty. Operand 9841 states and 11953 transitions. [2021-12-17 04:26:35,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-17 04:26:35,474 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:35,474 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-12-17 04:26:35,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 04:26:35,475 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:35,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:35,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1411636712, now seen corresponding path program 1 times [2021-12-17 04:26:35,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:35,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045007159] [2021-12-17 04:26:35,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:35,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:35,626 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-12-17 04:26:35,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:35,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045007159] [2021-12-17 04:26:35,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045007159] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:35,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:35,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:35,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540604745] [2021-12-17 04:26:35,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:35,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:35,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:35,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:35,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:35,629 INFO L87 Difference]: Start difference. First operand 9841 states and 11953 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-12-17 04:26:36,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:36,380 INFO L93 Difference]: Finished difference Result 19308 states and 23823 transitions. [2021-12-17 04:26:36,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:36,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 270 [2021-12-17 04:26:36,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:36,403 INFO L225 Difference]: With dead ends: 19308 [2021-12-17 04:26:36,403 INFO L226 Difference]: Without dead ends: 10948 [2021-12-17 04:26:36,415 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 [2021-12-17 04:26:36,416 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 178 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:36,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 145 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:36,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10948 states. [2021-12-17 04:26:36,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10948 to 10945. [2021-12-17 04:26:36,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10945 states, 10944 states have (on average 1.2303545321637428) internal successors, (13465), 10944 states have internal predecessors, (13465), 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) [2021-12-17 04:26:36,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10945 states to 10945 states and 13465 transitions. [2021-12-17 04:26:36,588 INFO L78 Accepts]: Start accepts. Automaton has 10945 states and 13465 transitions. Word has length 270 [2021-12-17 04:26:36,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:36,588 INFO L470 AbstractCegarLoop]: Abstraction has 10945 states and 13465 transitions. [2021-12-17 04:26:36,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2021-12-17 04:26:36,589 INFO L276 IsEmpty]: Start isEmpty. Operand 10945 states and 13465 transitions. [2021-12-17 04:26:36,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-12-17 04:26:36,595 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:36,595 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-12-17 04:26:36,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 04:26:36,596 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:36,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:36,596 INFO L85 PathProgramCache]: Analyzing trace with hash -789875443, now seen corresponding path program 1 times [2021-12-17 04:26:36,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:36,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240638692] [2021-12-17 04:26:36,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:36,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:36,705 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:36,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:36,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240638692] [2021-12-17 04:26:36,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240638692] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:36,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:36,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:36,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023375452] [2021-12-17 04:26:36,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:36,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:26:36,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:36,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:26:36,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:36,708 INFO L87 Difference]: Start difference. First operand 10945 states and 13465 transitions. Second operand has 4 states, 4 states have (on average 68.0) internal successors, (272), 3 states have internal predecessors, (272), 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) [2021-12-17 04:26:38,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:38,008 INFO L93 Difference]: Finished difference Result 27425 states and 34348 transitions. [2021-12-17 04:26:38,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:26:38,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 3 states have internal predecessors, (272), 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 272 [2021-12-17 04:26:38,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:38,045 INFO L225 Difference]: With dead ends: 27425 [2021-12-17 04:26:38,046 INFO L226 Difference]: Without dead ends: 16851 [2021-12-17 04:26:38,059 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 [2021-12-17 04:26:38,061 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 212 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:38,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 92 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-17 04:26:38,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16851 states. [2021-12-17 04:26:38,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16851 to 16843. [2021-12-17 04:26:38,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16843 states, 16842 states have (on average 1.2331670822942644) internal successors, (20769), 16842 states have internal predecessors, (20769), 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) [2021-12-17 04:26:38,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16843 states to 16843 states and 20769 transitions. [2021-12-17 04:26:38,342 INFO L78 Accepts]: Start accepts. Automaton has 16843 states and 20769 transitions. Word has length 272 [2021-12-17 04:26:38,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:38,343 INFO L470 AbstractCegarLoop]: Abstraction has 16843 states and 20769 transitions. [2021-12-17 04:26:38,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 3 states have internal predecessors, (272), 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) [2021-12-17 04:26:38,343 INFO L276 IsEmpty]: Start isEmpty. Operand 16843 states and 20769 transitions. [2021-12-17 04:26:38,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-12-17 04:26:38,350 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:38,351 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-12-17 04:26:38,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 04:26:38,351 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:38,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:38,354 INFO L85 PathProgramCache]: Analyzing trace with hash 968701263, now seen corresponding path program 1 times [2021-12-17 04:26:38,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:38,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949372367] [2021-12-17 04:26:38,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:38,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:38,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:38,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949372367] [2021-12-17 04:26:38,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949372367] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:38,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:38,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 04:26:38,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962350371] [2021-12-17 04:26:38,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:38,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 04:26:38,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:38,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 04:26:38,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:26:38,585 INFO L87 Difference]: Start difference. First operand 16843 states and 20769 transitions. Second operand has 6 states, 6 states have (on average 47.0) internal successors, (282), 5 states have internal predecessors, (282), 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) [2021-12-17 04:26:40,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:40,355 INFO L93 Difference]: Finished difference Result 36336 states and 44602 transitions. [2021-12-17 04:26:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 04:26:40,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 47.0) internal successors, (282), 5 states have internal predecessors, (282), 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 282 [2021-12-17 04:26:40,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:40,383 INFO L225 Difference]: With dead ends: 36336 [2021-12-17 04:26:40,383 INFO L226 Difference]: Without dead ends: 19864 [2021-12-17 04:26:40,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-17 04:26:40,399 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 611 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:40,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [611 Valid, 180 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-17 04:26:40,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19864 states. [2021-12-17 04:26:40,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19864 to 19419. [2021-12-17 04:26:40,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19419 states, 19418 states have (on average 1.2157276753527655) internal successors, (23607), 19418 states have internal predecessors, (23607), 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) [2021-12-17 04:26:40,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19419 states to 19419 states and 23607 transitions. [2021-12-17 04:26:40,764 INFO L78 Accepts]: Start accepts. Automaton has 19419 states and 23607 transitions. Word has length 282 [2021-12-17 04:26:40,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:40,764 INFO L470 AbstractCegarLoop]: Abstraction has 19419 states and 23607 transitions. [2021-12-17 04:26:40,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.0) internal successors, (282), 5 states have internal predecessors, (282), 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) [2021-12-17 04:26:40,765 INFO L276 IsEmpty]: Start isEmpty. Operand 19419 states and 23607 transitions. [2021-12-17 04:26:40,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-12-17 04:26:40,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:40,776 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, 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, 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] [2021-12-17 04:26:40,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 04:26:40,777 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:40,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash -784844873, now seen corresponding path program 1 times [2021-12-17 04:26:40,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:40,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133377505] [2021-12-17 04:26:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:40,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:40,884 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-12-17 04:26:40,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:40,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133377505] [2021-12-17 04:26:40,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133377505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:40,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:40,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:40,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645039883] [2021-12-17 04:26:40,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:40,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:40,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:40,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:40,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:40,887 INFO L87 Difference]: Start difference. First operand 19419 states and 23607 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-12-17 04:26:41,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:41,696 INFO L93 Difference]: Finished difference Result 40326 states and 49785 transitions. [2021-12-17 04:26:41,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:41,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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 329 [2021-12-17 04:26:41,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:41,740 INFO L225 Difference]: With dead ends: 40326 [2021-12-17 04:26:41,741 INFO L226 Difference]: Without dead ends: 22752 [2021-12-17 04:26:41,759 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 [2021-12-17 04:26:41,760 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 164 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:41,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 341 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:41,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22752 states. [2021-12-17 04:26:42,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22752 to 22548. [2021-12-17 04:26:42,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22548 states, 22547 states have (on average 1.2001596664744756) internal successors, (27060), 22547 states have internal predecessors, (27060), 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) [2021-12-17 04:26:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22548 states to 22548 states and 27060 transitions. [2021-12-17 04:26:42,129 INFO L78 Accepts]: Start accepts. Automaton has 22548 states and 27060 transitions. Word has length 329 [2021-12-17 04:26:42,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:42,129 INFO L470 AbstractCegarLoop]: Abstraction has 22548 states and 27060 transitions. [2021-12-17 04:26:42,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-12-17 04:26:42,130 INFO L276 IsEmpty]: Start isEmpty. Operand 22548 states and 27060 transitions. [2021-12-17 04:26:42,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-12-17 04:26:42,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:42,141 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-12-17 04:26:42,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 04:26:42,142 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:42,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:42,142 INFO L85 PathProgramCache]: Analyzing trace with hash -20701429, now seen corresponding path program 1 times [2021-12-17 04:26:42,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:42,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969481801] [2021-12-17 04:26:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:42,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-17 04:26:42,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:42,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969481801] [2021-12-17 04:26:42,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969481801] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:42,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:42,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:42,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561132443] [2021-12-17 04:26:42,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:42,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:42,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:42,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:42,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:42,274 INFO L87 Difference]: Start difference. First operand 22548 states and 27060 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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) [2021-12-17 04:26:43,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:43,155 INFO L93 Difference]: Finished difference Result 45097 states and 54492 transitions. [2021-12-17 04:26:43,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:43,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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 329 [2021-12-17 04:26:43,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:43,192 INFO L225 Difference]: With dead ends: 45097 [2021-12-17 04:26:43,192 INFO L226 Difference]: Without dead ends: 24394 [2021-12-17 04:26:43,208 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 [2021-12-17 04:26:43,209 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 182 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:43,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 166 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:43,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24394 states. [2021-12-17 04:26:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24394 to 22548. [2021-12-17 04:26:43,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22548 states, 22547 states have (on average 1.2001596664744756) internal successors, (27060), 22547 states have internal predecessors, (27060), 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) [2021-12-17 04:26:43,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22548 states to 22548 states and 27060 transitions. [2021-12-17 04:26:43,658 INFO L78 Accepts]: Start accepts. Automaton has 22548 states and 27060 transitions. Word has length 329 [2021-12-17 04:26:43,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:43,659 INFO L470 AbstractCegarLoop]: Abstraction has 22548 states and 27060 transitions. [2021-12-17 04:26:43,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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) [2021-12-17 04:26:43,660 INFO L276 IsEmpty]: Start isEmpty. Operand 22548 states and 27060 transitions. [2021-12-17 04:26:43,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-12-17 04:26:43,673 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:43,673 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, 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, 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] [2021-12-17 04:26:43,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 04:26:43,674 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:43,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:43,675 INFO L85 PathProgramCache]: Analyzing trace with hash 501703573, now seen corresponding path program 1 times [2021-12-17 04:26:43,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:43,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330321021] [2021-12-17 04:26:43,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:43,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:43,798 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-12-17 04:26:43,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:43,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330321021] [2021-12-17 04:26:43,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330321021] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:43,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:43,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:43,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340095215] [2021-12-17 04:26:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:43,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:43,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:43,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:43,801 INFO L87 Difference]: Start difference. First operand 22548 states and 27060 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-12-17 04:26:44,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:44,700 INFO L93 Difference]: Finished difference Result 49328 states and 59506 transitions. [2021-12-17 04:26:44,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:44,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 351 [2021-12-17 04:26:44,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:44,735 INFO L225 Difference]: With dead ends: 49328 [2021-12-17 04:26:44,735 INFO L226 Difference]: Without dead ends: 27150 [2021-12-17 04:26:44,748 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 [2021-12-17 04:26:44,749 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 155 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:44,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 86 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:44,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27150 states. [2021-12-17 04:26:45,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27150 to 25120. [2021-12-17 04:26:45,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25120 states, 25119 states have (on average 1.1903738206138779) internal successors, (29901), 25119 states have internal predecessors, (29901), 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) [2021-12-17 04:26:45,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25120 states to 25120 states and 29901 transitions. [2021-12-17 04:26:45,235 INFO L78 Accepts]: Start accepts. Automaton has 25120 states and 29901 transitions. Word has length 351 [2021-12-17 04:26:45,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:45,236 INFO L470 AbstractCegarLoop]: Abstraction has 25120 states and 29901 transitions. [2021-12-17 04:26:45,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2021-12-17 04:26:45,236 INFO L276 IsEmpty]: Start isEmpty. Operand 25120 states and 29901 transitions. [2021-12-17 04:26:45,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-12-17 04:26:45,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:45,297 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, 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, 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] [2021-12-17 04:26:45,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 04:26:45,297 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:45,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:45,298 INFO L85 PathProgramCache]: Analyzing trace with hash 694494565, now seen corresponding path program 1 times [2021-12-17 04:26:45,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:45,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77233070] [2021-12-17 04:26:45,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:45,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:45,528 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-12-17 04:26:45,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:45,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77233070] [2021-12-17 04:26:45,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77233070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:45,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:45,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:45,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284407121] [2021-12-17 04:26:45,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:45,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:45,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:45,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:45,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:45,532 INFO L87 Difference]: Start difference. First operand 25120 states and 29901 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-12-17 04:26:46,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:46,396 INFO L93 Difference]: Finished difference Result 51890 states and 62383 transitions. [2021-12-17 04:26:46,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:46,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 371 [2021-12-17 04:26:46,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:46,446 INFO L225 Difference]: With dead ends: 51890 [2021-12-17 04:26:46,447 INFO L226 Difference]: Without dead ends: 28799 [2021-12-17 04:26:46,455 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 [2021-12-17 04:26:46,456 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 180 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:46,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 158 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:26:46,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28799 states. [2021-12-17 04:26:46,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28799 to 25296. [2021-12-17 04:26:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25296 states, 25295 states have (on average 1.1709428740857877) internal successors, (29619), 25295 states have internal predecessors, (29619), 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) [2021-12-17 04:26:46,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25296 states to 25296 states and 29619 transitions. [2021-12-17 04:26:46,821 INFO L78 Accepts]: Start accepts. Automaton has 25296 states and 29619 transitions. Word has length 371 [2021-12-17 04:26:46,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:46,822 INFO L470 AbstractCegarLoop]: Abstraction has 25296 states and 29619 transitions. [2021-12-17 04:26:46,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-12-17 04:26:46,822 INFO L276 IsEmpty]: Start isEmpty. Operand 25296 states and 29619 transitions. [2021-12-17 04:26:46,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2021-12-17 04:26:46,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:46,837 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, 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, 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] [2021-12-17 04:26:46,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 04:26:46,838 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:46,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:46,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2132964606, now seen corresponding path program 1 times [2021-12-17 04:26:46,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:46,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472882616] [2021-12-17 04:26:46,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:46,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-17 04:26:46,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:46,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472882616] [2021-12-17 04:26:46,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472882616] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:46,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:46,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:46,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910044862] [2021-12-17 04:26:46,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:46,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:46,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:46,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:46,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:46,966 INFO L87 Difference]: Start difference. First operand 25296 states and 29619 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2021-12-17 04:26:47,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:47,690 INFO L93 Difference]: Finished difference Result 53188 states and 62450 transitions. [2021-12-17 04:26:47,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:47,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 376 [2021-12-17 04:26:47,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:47,721 INFO L225 Difference]: With dead ends: 53188 [2021-12-17 04:26:47,721 INFO L226 Difference]: Without dead ends: 29921 [2021-12-17 04:26:47,741 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 [2021-12-17 04:26:47,742 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 67 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:47,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 157 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:26:47,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29921 states. [2021-12-17 04:26:47,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29921 to 28240. [2021-12-17 04:26:47,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28240 states, 28239 states have (on average 1.1580084280604837) internal successors, (32701), 28239 states have internal predecessors, (32701), 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) [2021-12-17 04:26:48,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28240 states to 28240 states and 32701 transitions. [2021-12-17 04:26:48,042 INFO L78 Accepts]: Start accepts. Automaton has 28240 states and 32701 transitions. Word has length 376 [2021-12-17 04:26:48,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:48,042 INFO L470 AbstractCegarLoop]: Abstraction has 28240 states and 32701 transitions. [2021-12-17 04:26:48,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2021-12-17 04:26:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 28240 states and 32701 transitions. [2021-12-17 04:26:48,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2021-12-17 04:26:48,190 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:48,190 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:48,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 04:26:48,191 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:48,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:48,192 INFO L85 PathProgramCache]: Analyzing trace with hash -827270132, now seen corresponding path program 1 times [2021-12-17 04:26:48,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:48,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358510982] [2021-12-17 04:26:48,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:48,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:48,329 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 518 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-12-17 04:26:48,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:48,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358510982] [2021-12-17 04:26:48,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358510982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:48,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:48,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:48,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801889921] [2021-12-17 04:26:48,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:48,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:48,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:48,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:48,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:48,334 INFO L87 Difference]: Start difference. First operand 28240 states and 32701 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2021-12-17 04:26:48,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:48,995 INFO L93 Difference]: Finished difference Result 56289 states and 65421 transitions. [2021-12-17 04:26:48,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:48,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 432 [2021-12-17 04:26:48,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:49,024 INFO L225 Difference]: With dead ends: 56289 [2021-12-17 04:26:49,024 INFO L226 Difference]: Without dead ends: 29156 [2021-12-17 04:26:49,044 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 [2021-12-17 04:26:49,045 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 164 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:49,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 149 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:26:49,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29156 states. [2021-12-17 04:26:49,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29156 to 23812. [2021-12-17 04:26:49,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23812 states, 23811 states have (on average 1.1181806727982866) internal successors, (26625), 23811 states have internal predecessors, (26625), 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) [2021-12-17 04:26:49,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23812 states to 23812 states and 26625 transitions. [2021-12-17 04:26:49,385 INFO L78 Accepts]: Start accepts. Automaton has 23812 states and 26625 transitions. Word has length 432 [2021-12-17 04:26:49,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:49,385 INFO L470 AbstractCegarLoop]: Abstraction has 23812 states and 26625 transitions. [2021-12-17 04:26:49,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2021-12-17 04:26:49,385 INFO L276 IsEmpty]: Start isEmpty. Operand 23812 states and 26625 transitions. [2021-12-17 04:26:49,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2021-12-17 04:26:49,402 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:49,402 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:49,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 04:26:49,403 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:49,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:49,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1489523097, now seen corresponding path program 1 times [2021-12-17 04:26:49,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:49,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252388919] [2021-12-17 04:26:49,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:49,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:49,573 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-17 04:26:49,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:49,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252388919] [2021-12-17 04:26:49,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252388919] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:49,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:49,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:49,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346236073] [2021-12-17 04:26:49,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:49,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:26:49,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:49,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:26:49,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:49,577 INFO L87 Difference]: Start difference. First operand 23812 states and 26625 transitions. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 3 states have internal predecessors, (393), 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) [2021-12-17 04:26:50,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:50,623 INFO L93 Difference]: Finished difference Result 51322 states and 57601 transitions. [2021-12-17 04:26:50,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:26:50,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 3 states have internal predecessors, (393), 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 511 [2021-12-17 04:26:50,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:50,651 INFO L225 Difference]: With dead ends: 51322 [2021-12-17 04:26:50,652 INFO L226 Difference]: Without dead ends: 29170 [2021-12-17 04:26:50,668 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 [2021-12-17 04:26:50,669 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 216 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:50,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 91 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 04:26:50,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29170 states. [2021-12-17 04:26:50,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29170 to 23632. [2021-12-17 04:26:50,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23632 states, 23631 states have (on average 1.11865769540011) internal successors, (26435), 23631 states have internal predecessors, (26435), 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) [2021-12-17 04:26:50,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23632 states to 23632 states and 26435 transitions. [2021-12-17 04:26:50,992 INFO L78 Accepts]: Start accepts. Automaton has 23632 states and 26435 transitions. Word has length 511 [2021-12-17 04:26:50,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:50,992 INFO L470 AbstractCegarLoop]: Abstraction has 23632 states and 26435 transitions. [2021-12-17 04:26:50,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 3 states have internal predecessors, (393), 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) [2021-12-17 04:26:50,993 INFO L276 IsEmpty]: Start isEmpty. Operand 23632 states and 26435 transitions. [2021-12-17 04:26:51,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2021-12-17 04:26:51,011 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:51,011 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, 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:51,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 04:26:51,012 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:51,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:51,012 INFO L85 PathProgramCache]: Analyzing trace with hash 522658155, now seen corresponding path program 1 times [2021-12-17 04:26:51,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:51,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072425254] [2021-12-17 04:26:51,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:51,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:51,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 693 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2021-12-17 04:26:51,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:51,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072425254] [2021-12-17 04:26:51,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072425254] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:51,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:51,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:51,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312953665] [2021-12-17 04:26:51,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:51,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:51,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:51,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:51,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:51,212 INFO L87 Difference]: Start difference. First operand 23632 states and 26435 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2021-12-17 04:26:51,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:51,853 INFO L93 Difference]: Finished difference Result 46523 states and 52179 transitions. [2021-12-17 04:26:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:51,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 635 [2021-12-17 04:26:51,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:51,879 INFO L225 Difference]: With dead ends: 46523 [2021-12-17 04:26:51,879 INFO L226 Difference]: Without dead ends: 25287 [2021-12-17 04:26:52,025 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 [2021-12-17 04:26:52,026 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 69 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:52,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 338 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:26:52,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25287 states. [2021-12-17 04:26:52,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25287 to 22149. [2021-12-17 04:26:52,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22149 states, 22148 states have (on average 1.1151345493949791) internal successors, (24698), 22148 states have internal predecessors, (24698), 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) [2021-12-17 04:26:52,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22149 states to 22149 states and 24698 transitions. [2021-12-17 04:26:52,207 INFO L78 Accepts]: Start accepts. Automaton has 22149 states and 24698 transitions. Word has length 635 [2021-12-17 04:26:52,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:52,208 INFO L470 AbstractCegarLoop]: Abstraction has 22149 states and 24698 transitions. [2021-12-17 04:26:52,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2021-12-17 04:26:52,208 INFO L276 IsEmpty]: Start isEmpty. Operand 22149 states and 24698 transitions. [2021-12-17 04:26:52,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2021-12-17 04:26:52,230 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:52,230 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:52,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 04:26:52,230 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:52,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:52,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1081395098, now seen corresponding path program 1 times [2021-12-17 04:26:52,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:52,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781008270] [2021-12-17 04:26:52,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:52,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:52,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 837 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-12-17 04:26:52,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:52,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781008270] [2021-12-17 04:26:52,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781008270] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:52,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:52,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 04:26:52,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981657918] [2021-12-17 04:26:52,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:52,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 04:26:52,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:52,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 04:26:52,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:26:52,605 INFO L87 Difference]: Start difference. First operand 22149 states and 24698 transitions. Second operand has 7 states, 7 states have (on average 59.0) internal successors, (413), 6 states have internal predecessors, (413), 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) [2021-12-17 04:26:53,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:53,907 INFO L93 Difference]: Finished difference Result 42422 states and 47362 transitions. [2021-12-17 04:26:53,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 04:26:53,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 59.0) internal successors, (413), 6 states have internal predecessors, (413), 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 662 [2021-12-17 04:26:53,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:53,930 INFO L225 Difference]: With dead ends: 42422 [2021-12-17 04:26:53,930 INFO L226 Difference]: Without dead ends: 22669 [2021-12-17 04:26:53,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-17 04:26:53,945 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 309 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:53,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 180 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 04:26:53,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22669 states. [2021-12-17 04:26:54,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22669 to 22333. [2021-12-17 04:26:54,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22333 states, 22332 states have (on average 1.1144993730969013) internal successors, (24889), 22332 states have internal predecessors, (24889), 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) [2021-12-17 04:26:54,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22333 states to 22333 states and 24889 transitions. [2021-12-17 04:26:54,220 INFO L78 Accepts]: Start accepts. Automaton has 22333 states and 24889 transitions. Word has length 662 [2021-12-17 04:26:54,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:54,221 INFO L470 AbstractCegarLoop]: Abstraction has 22333 states and 24889 transitions. [2021-12-17 04:26:54,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.0) internal successors, (413), 6 states have internal predecessors, (413), 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) [2021-12-17 04:26:54,221 INFO L276 IsEmpty]: Start isEmpty. Operand 22333 states and 24889 transitions. [2021-12-17 04:26:54,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2021-12-17 04:26:54,256 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:54,257 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, 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, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:54,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 04:26:54,257 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:54,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:54,258 INFO L85 PathProgramCache]: Analyzing trace with hash -118562656, now seen corresponding path program 1 times [2021-12-17 04:26:54,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:54,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417358411] [2021-12-17 04:26:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:54,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:54,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 1119 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2021-12-17 04:26:54,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:54,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417358411] [2021-12-17 04:26:54,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417358411] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:54,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:54,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:54,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190369227] [2021-12-17 04:26:54,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:54,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:54,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:54,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:54,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:54,512 INFO L87 Difference]: Start difference. First operand 22333 states and 24889 transitions. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2021-12-17 04:26:55,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:55,175 INFO L93 Difference]: Finished difference Result 46135 states and 51384 transitions. [2021-12-17 04:26:55,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:55,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 670 [2021-12-17 04:26:55,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:55,199 INFO L225 Difference]: With dead ends: 46135 [2021-12-17 04:26:55,199 INFO L226 Difference]: Without dead ends: 24172 [2021-12-17 04:26:55,213 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 [2021-12-17 04:26:55,214 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 124 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:55,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 314 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:26:55,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24172 states. [2021-12-17 04:26:55,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24172 to 18647. [2021-12-17 04:26:55,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18647 states, 18646 states have (on average 1.1033465622653653) internal successors, (20573), 18646 states have internal predecessors, (20573), 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) [2021-12-17 04:26:55,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18647 states to 18647 states and 20573 transitions. [2021-12-17 04:26:55,392 INFO L78 Accepts]: Start accepts. Automaton has 18647 states and 20573 transitions. Word has length 670 [2021-12-17 04:26:55,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:55,392 INFO L470 AbstractCegarLoop]: Abstraction has 18647 states and 20573 transitions. [2021-12-17 04:26:55,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2021-12-17 04:26:55,392 INFO L276 IsEmpty]: Start isEmpty. Operand 18647 states and 20573 transitions. [2021-12-17 04:26:55,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2021-12-17 04:26:55,411 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:55,412 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, 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, 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 04:26:55,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 04:26:55,412 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:55,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:55,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2057566227, now seen corresponding path program 1 times [2021-12-17 04:26:55,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:55,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033455181] [2021-12-17 04:26:55,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:55,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 859 proven. 8 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-12-17 04:26:55,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:55,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033455181] [2021-12-17 04:26:55,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033455181] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:26:55,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026283892] [2021-12-17 04:26:55,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:55,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:26:55,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:26:55,799 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) [2021-12-17 04:26:55,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 04:26:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:56,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-17 04:26:56,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:26:58,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 746 proven. 121 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-12-17 04:26:58,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 04:27:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 746 proven. 121 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-12-17 04:27:03,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026283892] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 04:27:03,065 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 04:27:03,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2021-12-17 04:27:03,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663964681] [2021-12-17 04:27:03,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 04:27:03,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-17 04:27:03,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:27:03,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-17 04:27:03,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-12-17 04:27:03,068 INFO L87 Difference]: Start difference. First operand 18647 states and 20573 transitions. Second operand has 11 states, 11 states have (on average 90.0909090909091) internal successors, (991), 10 states have internal predecessors, (991), 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) [2021-12-17 04:27:07,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:27:07,338 INFO L93 Difference]: Finished difference Result 43530 states and 47864 transitions. [2021-12-17 04:27:07,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-17 04:27:07,339 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 90.0909090909091) internal successors, (991), 10 states have internal predecessors, (991), 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 672 [2021-12-17 04:27:07,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:27:07,370 INFO L225 Difference]: With dead ends: 43530 [2021-12-17 04:27:07,370 INFO L226 Difference]: Without dead ends: 25243 [2021-12-17 04:27:07,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1375 GetRequests, 1340 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=363, Invalid=969, Unknown=0, NotChecked=0, Total=1332 [2021-12-17 04:27:07,387 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 1275 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 4794 mSolverCounterSat, 897 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 5691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 897 IncrementalHoareTripleChecker+Valid, 4794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:27:07,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1275 Valid, 251 Invalid, 5691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [897 Valid, 4794 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-17 04:27:07,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25243 states. [2021-12-17 04:27:07,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25243 to 18460. [2021-12-17 04:27:07,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18460 states, 18459 states have (on average 1.0714014843707675) internal successors, (19777), 18459 states have internal predecessors, (19777), 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) [2021-12-17 04:27:07,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18460 states to 18460 states and 19777 transitions. [2021-12-17 04:27:07,696 INFO L78 Accepts]: Start accepts. Automaton has 18460 states and 19777 transitions. Word has length 672 [2021-12-17 04:27:07,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:27:07,697 INFO L470 AbstractCegarLoop]: Abstraction has 18460 states and 19777 transitions. [2021-12-17 04:27:07,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.0909090909091) internal successors, (991), 10 states have internal predecessors, (991), 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) [2021-12-17 04:27:07,697 INFO L276 IsEmpty]: Start isEmpty. Operand 18460 states and 19777 transitions. [2021-12-17 04:27:07,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2021-12-17 04:27:07,721 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:27:07,722 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:27:07,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 04:27:07,946 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,SelfDestructingSolverStorable20 [2021-12-17 04:27:07,946 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:27:07,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:27:07,947 INFO L85 PathProgramCache]: Analyzing trace with hash -896075539, now seen corresponding path program 1 times [2021-12-17 04:27:07,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:27:07,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199328248] [2021-12-17 04:27:07,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:27:07,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:27:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:27:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1436 backedges. 1039 proven. 64 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-17 04:27:08,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:27:08,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199328248] [2021-12-17 04:27:08,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199328248] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:27:08,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487960616] [2021-12-17 04:27:08,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:27:08,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:27:08,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:27:08,267 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) [2021-12-17 04:27:08,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 04:27:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:27:08,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:27:08,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:27:09,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1436 backedges. 1103 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2021-12-17 04:27:09,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:27:09,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487960616] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:27:09,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:27:09,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:27:09,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503720278] [2021-12-17 04:27:09,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:27:09,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:27:09,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:27:09,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:27:09,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:27:09,372 INFO L87 Difference]: Start difference. First operand 18460 states and 19777 transitions. Second operand has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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) [2021-12-17 04:27:09,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:27:09,974 INFO L93 Difference]: Finished difference Result 37481 states and 40169 transitions. [2021-12-17 04:27:09,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:27:09,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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 687 [2021-12-17 04:27:09,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:27:10,000 INFO L225 Difference]: With dead ends: 37481 [2021-12-17 04:27:10,001 INFO L226 Difference]: Without dead ends: 20863 [2021-12-17 04:27:10,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:27:10,014 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 78 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:27:10,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 326 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:27:10,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20863 states. [2021-12-17 04:27:10,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20863 to 18644. [2021-12-17 04:27:10,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18644 states, 18643 states have (on average 1.0698385452985035) internal successors, (19945), 18643 states have internal predecessors, (19945), 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) [2021-12-17 04:27:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18644 states to 18644 states and 19945 transitions. [2021-12-17 04:27:10,269 INFO L78 Accepts]: Start accepts. Automaton has 18644 states and 19945 transitions. Word has length 687 [2021-12-17 04:27:10,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:27:10,270 INFO L470 AbstractCegarLoop]: Abstraction has 18644 states and 19945 transitions. [2021-12-17 04:27:10,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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) [2021-12-17 04:27:10,271 INFO L276 IsEmpty]: Start isEmpty. Operand 18644 states and 19945 transitions. [2021-12-17 04:27:10,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 751 [2021-12-17 04:27:10,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:27:10,296 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 04:27:10,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 04:27:10,508 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,SelfDestructingSolverStorable21 [2021-12-17 04:27:10,509 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:27:10,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:27:10,509 INFO L85 PathProgramCache]: Analyzing trace with hash -207250752, now seen corresponding path program 1 times [2021-12-17 04:27:10,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:27:10,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465949597] [2021-12-17 04:27:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:27:10,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:27:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:27:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1751 backedges. 1292 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2021-12-17 04:27:10,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:27:10,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465949597] [2021-12-17 04:27:10,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465949597] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:27:10,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:27:10,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:27:10,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676683705] [2021-12-17 04:27:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:27:10,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:27:10,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:27:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:27:10,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:27:10,778 INFO L87 Difference]: Start difference. First operand 18644 states and 19945 transitions. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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) [2021-12-17 04:27:11,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:27:11,476 INFO L93 Difference]: Finished difference Result 35626 states and 38103 transitions. [2021-12-17 04:27:11,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:27:11,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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 750 [2021-12-17 04:27:11,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:27:11,493 INFO L225 Difference]: With dead ends: 35626 [2021-12-17 04:27:11,493 INFO L226 Difference]: Without dead ends: 17352 [2021-12-17 04:27:11,503 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 [2021-12-17 04:27:11,504 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 70 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:27:11,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 268 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:27:11,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17352 states. [2021-12-17 04:27:11,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17352 to 14590. [2021-12-17 04:27:11,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14590 states, 14589 states have (on average 1.0662142710261155) internal successors, (15555), 14589 states have internal predecessors, (15555), 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) [2021-12-17 04:27:11,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14590 states to 14590 states and 15555 transitions. [2021-12-17 04:27:11,644 INFO L78 Accepts]: Start accepts. Automaton has 14590 states and 15555 transitions. Word has length 750 [2021-12-17 04:27:11,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:27:11,644 INFO L470 AbstractCegarLoop]: Abstraction has 14590 states and 15555 transitions. [2021-12-17 04:27:11,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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) [2021-12-17 04:27:11,644 INFO L276 IsEmpty]: Start isEmpty. Operand 14590 states and 15555 transitions. [2021-12-17 04:27:11,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2021-12-17 04:27:11,657 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:27:11,657 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, 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, 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 04:27:11,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-17 04:27:11,658 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:27:11,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:27:11,658 INFO L85 PathProgramCache]: Analyzing trace with hash 82690771, now seen corresponding path program 1 times [2021-12-17 04:27:11,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:27:11,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113658111] [2021-12-17 04:27:11,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:27:11,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:27:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:27:11,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 919 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2021-12-17 04:27:11,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:27:11,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113658111] [2021-12-17 04:27:11,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113658111] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:27:11,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:27:11,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:27:11,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68912390] [2021-12-17 04:27:11,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:27:11,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:27:11,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:27:11,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:27:11,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:27:11,846 INFO L87 Difference]: Start difference. First operand 14590 states and 15555 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 2 states have internal predecessors, (300), 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) [2021-12-17 04:27:12,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:27:12,160 INFO L93 Difference]: Finished difference Result 27702 states and 29567 transitions. [2021-12-17 04:27:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:27:12,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 2 states have internal predecessors, (300), 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 755 [2021-12-17 04:27:12,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:27:12,173 INFO L225 Difference]: With dead ends: 27702 [2021-12-17 04:27:12,173 INFO L226 Difference]: Without dead ends: 14586 [2021-12-17 04:27:12,180 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 [2021-12-17 04:27:12,181 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 165 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 04:27:12,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 35 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 04:27:12,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14586 states. [2021-12-17 04:27:12,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14586 to 14586. [2021-12-17 04:27:12,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14586 states, 14585 states have (on average 1.0659581762084334) internal successors, (15547), 14585 states have internal predecessors, (15547), 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) [2021-12-17 04:27:12,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14586 states to 14586 states and 15547 transitions. [2021-12-17 04:27:12,312 INFO L78 Accepts]: Start accepts. Automaton has 14586 states and 15547 transitions. Word has length 755 [2021-12-17 04:27:12,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:27:12,312 INFO L470 AbstractCegarLoop]: Abstraction has 14586 states and 15547 transitions. [2021-12-17 04:27:12,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 2 states have internal predecessors, (300), 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) [2021-12-17 04:27:12,313 INFO L276 IsEmpty]: Start isEmpty. Operand 14586 states and 15547 transitions. [2021-12-17 04:27:12,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2021-12-17 04:27:12,326 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:27:12,327 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, 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, 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 04:27:12,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-17 04:27:12,327 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:27:12,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:27:12,328 INFO L85 PathProgramCache]: Analyzing trace with hash 840171689, now seen corresponding path program 1 times [2021-12-17 04:27:12,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:27:12,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368540690] [2021-12-17 04:27:12,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:27:12,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:27:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:27:12,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 1286 proven. 166 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2021-12-17 04:27:12,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:27:12,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368540690] [2021-12-17 04:27:12,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368540690] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:27:12,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657626534] [2021-12-17 04:27:12,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:27:12,593 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:27:12,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:27:12,594 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) [2021-12-17 04:27:12,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 04:27:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:27:12,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:27:12,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:27:13,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 1244 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2021-12-17 04:27:13,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:27:13,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657626534] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:27:13,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:27:13,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-17 04:27:13,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462720983] [2021-12-17 04:27:13,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:27:13,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:27:13,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:27:13,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:27:13,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:27:13,627 INFO L87 Difference]: Start difference. First operand 14586 states and 15547 transitions. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2021-12-17 04:27:14,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:27:14,117 INFO L93 Difference]: Finished difference Result 27329 states and 29178 transitions. [2021-12-17 04:27:14,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:27:14,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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 771 [2021-12-17 04:27:14,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:27:14,130 INFO L225 Difference]: With dead ends: 27329 [2021-12-17 04:27:14,130 INFO L226 Difference]: Without dead ends: 14217 [2021-12-17 04:27:14,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 772 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:27:14,138 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 145 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:27:14,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 280 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:27:14,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14217 states. [2021-12-17 04:27:14,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14217 to 13659. [2021-12-17 04:27:14,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13659 states, 13658 states have (on average 1.0661883145409283) internal successors, (14562), 13658 states have internal predecessors, (14562), 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) [2021-12-17 04:27:14,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13659 states to 13659 states and 14562 transitions. [2021-12-17 04:27:14,266 INFO L78 Accepts]: Start accepts. Automaton has 13659 states and 14562 transitions. Word has length 771 [2021-12-17 04:27:14,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:27:14,266 INFO L470 AbstractCegarLoop]: Abstraction has 13659 states and 14562 transitions. [2021-12-17 04:27:14,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2021-12-17 04:27:14,266 INFO L276 IsEmpty]: Start isEmpty. Operand 13659 states and 14562 transitions. [2021-12-17 04:27:14,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2021-12-17 04:27:14,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:27:14,279 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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] [2021-12-17 04:27:14,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 04:27:14,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:27:14,480 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:27:14,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:27:14,481 INFO L85 PathProgramCache]: Analyzing trace with hash 178315433, now seen corresponding path program 1 times [2021-12-17 04:27:14,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:27:14,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467380993] [2021-12-17 04:27:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:27:14,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:27:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:27:14,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2293 backedges. 1525 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2021-12-17 04:27:14,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:27:14,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467380993] [2021-12-17 04:27:14,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467380993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:27:14,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:27:14,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:27:14,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749832651] [2021-12-17 04:27:14,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:27:14,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:27:14,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:27:14,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:27:14,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:27:14,717 INFO L87 Difference]: Start difference. First operand 13659 states and 14562 transitions. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2021-12-17 04:27:15,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:27:15,256 INFO L93 Difference]: Finished difference Result 27871 states and 29748 transitions. [2021-12-17 04:27:15,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:27:15,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 810 [2021-12-17 04:27:15,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:27:15,272 INFO L225 Difference]: With dead ends: 27871 [2021-12-17 04:27:15,272 INFO L226 Difference]: Without dead ends: 14950 [2021-12-17 04:27:15,282 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 [2021-12-17 04:27:15,283 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 114 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:27:15,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:27:15,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14950 states. [2021-12-17 04:27:15,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14950 to 12555. [2021-12-17 04:27:15,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12555 states, 12554 states have (on average 1.0642823004620041) internal successors, (13361), 12554 states have internal predecessors, (13361), 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) [2021-12-17 04:27:15,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12555 states to 12555 states and 13361 transitions. [2021-12-17 04:27:15,427 INFO L78 Accepts]: Start accepts. Automaton has 12555 states and 13361 transitions. Word has length 810 [2021-12-17 04:27:15,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:27:15,428 INFO L470 AbstractCegarLoop]: Abstraction has 12555 states and 13361 transitions. [2021-12-17 04:27:15,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2021-12-17 04:27:15,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12555 states and 13361 transitions. [2021-12-17 04:27:15,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 866 [2021-12-17 04:27:15,440 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:27:15,440 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:27:15,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-17 04:27:15,441 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:27:15,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:27:15,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1449975006, now seen corresponding path program 1 times [2021-12-17 04:27:15,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:27:15,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525159897] [2021-12-17 04:27:15,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:27:15,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:27:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:27:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2529 backedges. 2006 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2021-12-17 04:27:15,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:27:15,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525159897] [2021-12-17 04:27:15,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525159897] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:27:15,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:27:15,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 04:27:15,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250291119] [2021-12-17 04:27:15,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:27:15,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:27:15,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:27:15,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:27:15,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:27:15,732 INFO L87 Difference]: Start difference. First operand 12555 states and 13361 transitions. Second operand has 4 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 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) [2021-12-17 04:27:16,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:27:16,601 INFO L93 Difference]: Finished difference Result 26958 states and 28785 transitions. [2021-12-17 04:27:16,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:27:16,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 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 865 [2021-12-17 04:27:16,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:27:16,616 INFO L225 Difference]: With dead ends: 26958 [2021-12-17 04:27:16,616 INFO L226 Difference]: Without dead ends: 15693 [2021-12-17 04:27:16,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:27:16,626 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 185 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 04:27:16,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 100 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 04:27:16,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15693 states. [2021-12-17 04:27:16,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15693 to 14401. [2021-12-17 04:27:16,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14401 states, 14400 states have (on average 1.0679166666666666) internal successors, (15378), 14400 states have internal predecessors, (15378), 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) [2021-12-17 04:27:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 15378 transitions. [2021-12-17 04:27:16,774 INFO L78 Accepts]: Start accepts. Automaton has 14401 states and 15378 transitions. Word has length 865 [2021-12-17 04:27:16,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:27:16,775 INFO L470 AbstractCegarLoop]: Abstraction has 14401 states and 15378 transitions. [2021-12-17 04:27:16,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 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) [2021-12-17 04:27:16,775 INFO L276 IsEmpty]: Start isEmpty. Operand 14401 states and 15378 transitions. [2021-12-17 04:27:16,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 873 [2021-12-17 04:27:16,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:27:16,787 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:27:16,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-17 04:27:16,788 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:27:16,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:27:16,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1227757454, now seen corresponding path program 1 times [2021-12-17 04:27:16,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:27:16,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798057476] [2021-12-17 04:27:16,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:27:16,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:27:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:27:17,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2032 backedges. 1524 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-12-17 04:27:17,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:27:17,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798057476] [2021-12-17 04:27:17,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798057476] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:27:17,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:27:17,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 04:27:17,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949269474] [2021-12-17 04:27:17,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:27:17,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:27:17,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:27:17,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:27:17,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:27:17,063 INFO L87 Difference]: Start difference. First operand 14401 states and 15378 transitions. Second operand has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 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) [2021-12-17 04:27:17,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:27:17,986 INFO L93 Difference]: Finished difference Result 27881 states and 29772 transitions. [2021-12-17 04:27:17,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:27:17,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 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 872 [2021-12-17 04:27:17,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:27:17,999 INFO L225 Difference]: With dead ends: 27881 [2021-12-17 04:27:17,999 INFO L226 Difference]: Without dead ends: 14034 [2021-12-17 04:27:18,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:27:18,007 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 229 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 04:27:18,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 70 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 04:27:18,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14034 states. [2021-12-17 04:27:18,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14034 to 9791. [2021-12-17 04:27:18,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9791 states, 9790 states have (on average 1.0674157303370786) internal successors, (10450), 9790 states have internal predecessors, (10450), 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) [2021-12-17 04:27:18,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9791 states to 9791 states and 10450 transitions. [2021-12-17 04:27:18,110 INFO L78 Accepts]: Start accepts. Automaton has 9791 states and 10450 transitions. Word has length 872 [2021-12-17 04:27:18,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:27:18,110 INFO L470 AbstractCegarLoop]: Abstraction has 9791 states and 10450 transitions. [2021-12-17 04:27:18,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 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) [2021-12-17 04:27:18,111 INFO L276 IsEmpty]: Start isEmpty. Operand 9791 states and 10450 transitions. [2021-12-17 04:27:18,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2021-12-17 04:27:18,121 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:27:18,121 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:27:18,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-17 04:27:18,122 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:27:18,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:27:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1572492702, now seen corresponding path program 1 times [2021-12-17 04:27:18,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:27:18,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662816259] [2021-12-17 04:27:18,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:27:18,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:27:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:27:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2151 backedges. 1525 proven. 0 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2021-12-17 04:27:18,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:27:18,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662816259] [2021-12-17 04:27:18,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662816259] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:27:18,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:27:18,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:27:18,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909463066] [2021-12-17 04:27:18,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:27:18,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:27:18,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:27:18,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:27:18,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:27:18,400 INFO L87 Difference]: Start difference. First operand 9791 states and 10450 transitions. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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) [2021-12-17 04:27:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:27:18,926 INFO L93 Difference]: Finished difference Result 16254 states and 17272 transitions. [2021-12-17 04:27:18,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:27:18,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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 896 [2021-12-17 04:27:18,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:27:18,927 INFO L225 Difference]: With dead ends: 16254 [2021-12-17 04:27:18,927 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 04:27:18,933 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 [2021-12-17 04:27:18,934 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 92 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:27:18,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 27 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:27:18,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 04:27:18,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 04:27:18,935 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) [2021-12-17 04:27:18,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 04:27:18,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 896 [2021-12-17 04:27:18,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:27:18,935 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 04:27:18,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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) [2021-12-17 04:27:18,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 04:27:18,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 04:27:18,938 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 04:27:18,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-17 04:27:18,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 04:27:39,435 WARN L227 SmtUtils]: Spent 20.49s on a formula simplification. DAG size of input: 1376 DAG size of output: 1293 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-17 04:27:59,230 WARN L227 SmtUtils]: Spent 19.79s on a formula simplification. DAG size of input: 1373 DAG size of output: 1293 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-17 04:28:05,190 WARN L227 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 1293 DAG size of output: 126 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-17 04:28:11,764 WARN L227 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 1293 DAG size of output: 126 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-17 04:28:11,768 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-12-17 04:28:11,768 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,768 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-12-17 04:28:11,768 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,768 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,768 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,768 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,768 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,768 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,769 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-12-17 04:28:11,769 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-12-17 04:28:11,769 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-12-17 04:28:11,769 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,769 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,769 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,769 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,769 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,770 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse23 (+ ~a23~0 43))) (let ((.cse0 (<= ~a23~0 312)) (.cse19 (<= 260 ~a29~0)) (.cse18 (<= (+ ~a23~0 55) 0)) (.cse20 (<= ~a29~0 245)) (.cse14 (<= ~a25~0 10)) (.cse5 (= ~a25~0 13)) (.cse1 (< 0 .cse23)) (.cse16 (<= ~a29~0 130)) (.cse17 (<= 0 (+ ~a29~0 28553))) (.cse11 (<= ~a29~0 274)) (.cse15 (<= 141 ~a29~0)) (.cse9 (or (not (= 12 ~a25~0)) (<= ~a23~0 306) (<= ~a29~0 277))) (.cse6 (< 306 ~a23~0)) (.cse12 (<= 246 ~a29~0)) (.cse7 (<= ~a23~0 600000)) (.cse10 (= ~a25~0 12)) (.cse22 (<= ~a23~0 138)) (.cse2 (= ~a4~0 1)) (.cse8 (< 277 ~a29~0)) (.cse21 (<= .cse23 0)) (.cse13 (<= ~a4~0 0)) (.cse3 (<= ~a25~0 9)) (.cse4 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse4 .cse7) (and .cse8 .cse0 .cse5 .cse2 .cse4) (and .cse9 .cse0 .cse10 .cse2 .cse4) (and .cse11 .cse10 .cse12 .cse13 .cse4) (and .cse11 .cse14 .cse15 .cse2 .cse4) (and .cse16 .cse17 .cse13 .cse4 .cse18) (and (= ~a25~0 10) .cse2 .cse4 .cse7) (and (<= ~a29~0 275) .cse10 .cse19 .cse13 .cse4) (and (or (and (< ~a29~0 276) .cse14 (= ~a3~0 1) .cse19 .cse2) (and .cse5 .cse20 .cse15 .cse2)) .cse4) (and .cse10 .cse16 .cse13 .cse4 .cse18) (and .cse20 .cse21 .cse13 .cse3 .cse4) (and .cse11 .cse10 .cse15 .cse13 .cse4 .cse7) (and (or .cse1 (not (= 9 ~a25~0)) (< 140 ~a29~0)) (or (and (<= 130 ~a29~0) .cse22 .cse2) (and .cse22 .cse14 .cse2))) (and .cse5 .cse1 .cse16 .cse17 .cse2 .cse4 .cse7) (and .cse11 .cse15 .cse2 .cse4 .cse7) (and .cse9 .cse6 .cse12 .cse2 .cse4 .cse7) (and .cse10 .cse22 .cse2) (and .cse8 .cse21 .cse13 .cse3 .cse4)))) [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,771 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-12-17 04:28:11,772 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse23 (+ ~a23~0 43))) (let ((.cse0 (<= ~a23~0 312)) (.cse18 (<= (+ ~a23~0 55) 0)) (.cse21 (<= 260 ~a29~0)) (.cse19 (<= ~a29~0 245)) (.cse5 (= ~a25~0 13)) (.cse16 (<= ~a29~0 130)) (.cse17 (<= 0 (+ ~a29~0 28553))) (.cse11 (<= ~a29~0 274)) (.cse15 (<= 141 ~a29~0)) (.cse1 (< 0 .cse23)) (.cse14 (<= ~a25~0 10)) (.cse9 (or (not (= 12 ~a25~0)) (<= ~a23~0 306) (<= ~a29~0 277))) (.cse6 (< 306 ~a23~0)) (.cse12 (<= 246 ~a29~0)) (.cse7 (<= ~a23~0 600000)) (.cse10 (= ~a25~0 12)) (.cse22 (<= ~a23~0 138)) (.cse2 (= ~a4~0 1)) (.cse8 (< 277 ~a29~0)) (.cse20 (<= .cse23 0)) (.cse13 (<= ~a4~0 0)) (.cse3 (<= ~a25~0 9)) (.cse4 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse4 .cse7) (and .cse8 .cse0 .cse5 .cse2 .cse4) (and .cse9 .cse0 .cse10 .cse2 .cse4) (and .cse11 .cse10 .cse12 .cse13 .cse4) (and .cse11 .cse14 .cse15 .cse2 .cse4) (and .cse16 .cse17 .cse13 .cse4 .cse18) (and (= ~a25~0 10) .cse2 .cse4 .cse7) (and .cse19 .cse20 .cse13 .cse3 .cse4) (and (<= ~a29~0 275) .cse10 .cse21 .cse13 .cse4) (and .cse10 .cse16 .cse13 .cse4 .cse18) (and (or (and (< ~a29~0 276) .cse14 (= ~a3~0 1) .cse21 .cse2) (and .cse5 .cse19 .cse15 .cse2)) .cse4) (and .cse11 .cse10 .cse15 .cse13 .cse4 .cse7) (and .cse5 .cse1 .cse16 .cse17 .cse2 .cse4 .cse7) (and .cse11 .cse15 .cse2 .cse4 .cse7) (and (or .cse1 (not (= 9 ~a25~0)) (< 140 ~a29~0)) (or (and (<= 130 ~a29~0) .cse22 .cse2) (and .cse22 .cse14 .cse2))) (and .cse9 .cse6 .cse12 .cse2 .cse4 .cse7) (and .cse10 .cse22 .cse2) (and .cse8 .cse20 .cse13 .cse3 .cse4)))) [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,773 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,774 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,774 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,774 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,774 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,774 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-12-17 04:28:11,774 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-12-17 04:28:11,774 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-12-17 04:28:11,774 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-12-17 04:28:11,775 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-12-17 04:28:11,775 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-12-17 04:28:11,775 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-12-17 04:28:11,775 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,775 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,775 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,775 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,775 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,776 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,776 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,776 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,776 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,776 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,776 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 04:28:11,776 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-12-17 04:28:11,776 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-12-17 04:28:11,777 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-12-17 04:28:11,777 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-12-17 04:28:11,777 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,777 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,777 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,777 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,777 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,777 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-12-17 04:28:11,778 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-12-17 04:28:11,778 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-12-17 04:28:11,778 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,778 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,778 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,778 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,778 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-12-17 04:28:11,778 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-12-17 04:28:11,779 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,779 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,779 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,779 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,779 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,779 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,779 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-12-17 04:28:11,779 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-12-17 04:28:11,780 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,780 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,780 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-17 04:28:11,780 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-12-17 04:28:11,780 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-12-17 04:28:11,780 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 04:28:11,780 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2021-12-17 04:28:11,781 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,781 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,781 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,781 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,781 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,781 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,781 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,781 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-12-17 04:28:11,782 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-12-17 04:28:11,782 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-12-17 04:28:11,782 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-12-17 04:28:11,782 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-12-17 04:28:11,782 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-12-17 04:28:11,782 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-12-17 04:28:11,782 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,782 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,783 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-12-17 04:28:11,783 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-12-17 04:28:11,783 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,783 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,783 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,783 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,783 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,783 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-12-17 04:28:11,784 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-17 04:28:11,784 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-12-17 04:28:11,784 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,784 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,784 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,784 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,784 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,784 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,785 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-12-17 04:28:11,785 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-12-17 04:28:11,785 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-17 04:28:11,785 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,785 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,785 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,785 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,785 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,786 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,786 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,786 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,786 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-12-17 04:28:11,786 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-12-17 04:28:11,786 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-12-17 04:28:11,786 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,786 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-12-17 04:28:11,787 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-17 04:28:11,788 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-17 04:28:11,788 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-12-17 04:28:11,788 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,788 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,788 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,788 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,788 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,788 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,788 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,788 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-12-17 04:28:11,788 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-12-17 04:28:11,789 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-17 04:28:11,789 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,789 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,789 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,789 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-12-17 04:28:11,789 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-12-17 04:28:11,789 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,789 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,789 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,789 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,789 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,790 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-12-17 04:28:11,790 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-12-17 04:28:11,790 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,790 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,790 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-12-17 04:28:11,790 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-12-17 04:28:11,790 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,790 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 04:28:11,791 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,791 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,791 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,791 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,791 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,791 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-12-17 04:28:11,791 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-12-17 04:28:11,791 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-12-17 04:28:11,792 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-12-17 04:28:11,792 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,792 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,792 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,792 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,792 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,792 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,792 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,793 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,793 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-12-17 04:28:11,793 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-12-17 04:28:11,793 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-12-17 04:28:11,793 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-12-17 04:28:11,793 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-12-17 04:28:11,793 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-12-17 04:28:11,793 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,794 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,794 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,794 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,794 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,794 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,794 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,794 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-17 04:28:11,795 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-12-17 04:28:11,795 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 04:28:11,795 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,795 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,795 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,795 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,795 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,795 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,796 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-12-17 04:28:11,796 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-17 04:28:11,796 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,796 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,796 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,796 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,796 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,796 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,797 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,797 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-12-17 04:28:11,797 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:28:11,797 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,797 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,797 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-17 04:28:11,797 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-12-17 04:28:11,797 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-12-17 04:28:11,798 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-12-17 04:28:11,800 INFO L732 BasicCegarLoop]: Path program 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] [2021-12-17 04:28:11,801 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 04:28:11,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 04:28:11 BoogieIcfgContainer [2021-12-17 04:28:11,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 04:28:11,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 04:28:11,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 04:28:11,834 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 04:28:11,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:26:26" (3/4) ... [2021-12-17 04:28:11,841 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 04:28:11,865 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 04:28:11,867 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 04:28:11,868 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 04:28:11,869 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 04:28:11,997 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 04:28:11,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 04:28:11,998 INFO L158 Benchmark]: Toolchain (without parser) took 107621.72ms. Allocated memory was 98.6MB in the beginning and 5.1GB in the end (delta: 5.0GB). Free memory was 67.2MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2021-12-17 04:28:11,999 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory was 57.4MB in the beginning and 57.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 04:28:11,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 723.45ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 66.9MB in the beginning and 74.9MB in the end (delta: -8.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-17 04:28:12,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.01ms. Allocated memory is still 132.1MB. Free memory was 74.9MB in the beginning and 92.4MB in the end (delta: -17.5MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2021-12-17 04:28:12,001 INFO L158 Benchmark]: Boogie Preprocessor took 118.05ms. Allocated memory is still 132.1MB. Free memory was 92.4MB in the beginning and 83.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 04:28:12,002 INFO L158 Benchmark]: RCFGBuilder took 1538.14ms. Allocated memory is still 132.1MB. Free memory was 83.2MB in the beginning and 67.8MB in the end (delta: 15.4MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2021-12-17 04:28:12,006 INFO L158 Benchmark]: TraceAbstraction took 104931.80ms. Allocated memory was 132.1MB in the beginning and 5.1GB in the end (delta: 5.0GB). Free memory was 67.8MB in the beginning and 2.9GB in the end (delta: -2.9GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. [2021-12-17 04:28:12,007 INFO L158 Benchmark]: Witness Printer took 163.97ms. Allocated memory is still 5.1GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-17 04:28:12,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory was 57.4MB in the beginning and 57.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 723.45ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 66.9MB in the beginning and 74.9MB in the end (delta: -8.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.01ms. Allocated memory is still 132.1MB. Free memory was 74.9MB in the beginning and 92.4MB in the end (delta: -17.5MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.05ms. Allocated memory is still 132.1MB. Free memory was 92.4MB in the beginning and 83.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1538.14ms. Allocated memory is still 132.1MB. Free memory was 83.2MB in the beginning and 67.8MB in the end (delta: 15.4MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. * TraceAbstraction took 104931.80ms. Allocated memory was 132.1MB in the beginning and 5.1GB in the end (delta: 5.0GB). Free memory was 67.8MB in the beginning and 2.9GB in the end (delta: -2.9GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. * Witness Printer took 163.97ms. Allocated memory is still 5.1GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. 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: 139]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 104.8s, OverallIterations: 29, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 29.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 52.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6644 SdHoareTripleChecker+Valid, 24.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6644 mSDsluCounter, 5635 SdHoareTripleChecker+Invalid, 19.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 949 mSDsCounter, 4217 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24928 IncrementalHoareTripleChecker+Invalid, 29145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4217 mSolverCounterUnsat, 4686 mSDtfsCounter, 24928 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2931 GetRequests, 2842 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28240occurred in iteration=15, InterpolantAutomatonStates: 136, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.9s AutomataMinimizationTime, 29 MinimizatonAttempts, 50062 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 119 NumberOfFragments, 755 HoareAnnotationTreeSize, 3 FomulaSimplifications, 252488 FormulaSimplificationTreeSizeReduction, 40.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 605472 FormulaSimplificationTreeSizeReductionInter, 12.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 12.5s InterpolantComputationTime, 15838 NumberOfCodeBlocks, 15838 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 16477 ConstructedInterpolants, 0 QuantifiedInterpolants, 48780 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2776 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 33 InterpolantComputations, 28 PerfectInterpolantSequences, 30780/31260 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: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a23 <= 312 && 0 < a23 + 43) && a4 == 1) && a25 <= 9) && a8 == 15) || ((((a25 == 13 && 306 < a23) && a4 == 1) && a8 == 15) && a23 <= 600000)) || ((((277 < a29 && a23 <= 312) && a25 == 13) && a4 == 1) && a8 == 15)) || ((((((!(12 == a25) || a23 <= 306) || a29 <= 277) && a23 <= 312) && a25 == 12) && a4 == 1) && a8 == 15)) || ((((a29 <= 274 && a25 == 12) && 246 <= a29) && a4 <= 0) && a8 == 15)) || ((((a29 <= 274 && a25 <= 10) && 141 <= a29) && a4 == 1) && a8 == 15)) || ((((a29 <= 130 && 0 <= a29 + 28553) && a4 <= 0) && a8 == 15) && a23 + 55 <= 0)) || (((a25 == 10 && a4 == 1) && a8 == 15) && a23 <= 600000)) || ((((a29 <= 245 && a23 + 43 <= 0) && a4 <= 0) && a25 <= 9) && a8 == 15)) || ((((a29 <= 275 && a25 == 12) && 260 <= a29) && a4 <= 0) && a8 == 15)) || ((((a25 == 12 && a29 <= 130) && a4 <= 0) && a8 == 15) && a23 + 55 <= 0)) || ((((((a29 < 276 && a25 <= 10) && a3 == 1) && 260 <= a29) && a4 == 1) || (((a25 == 13 && a29 <= 245) && 141 <= a29) && a4 == 1)) && a8 == 15)) || (((((a29 <= 274 && a25 == 12) && 141 <= a29) && a4 <= 0) && a8 == 15) && a23 <= 600000)) || ((((((a25 == 13 && 0 < a23 + 43) && a29 <= 130) && 0 <= a29 + 28553) && a4 == 1) && a8 == 15) && a23 <= 600000)) || ((((a29 <= 274 && 141 <= a29) && a4 == 1) && a8 == 15) && a23 <= 600000)) || (((0 < a23 + 43 || !(9 == a25)) || 140 < a29) && (((130 <= a29 && a23 <= 138) && a4 == 1) || ((a23 <= 138 && a25 <= 10) && a4 == 1)))) || (((((((!(12 == a25) || a23 <= 306) || a29 <= 277) && 306 < a23) && 246 <= a29) && a4 == 1) && a8 == 15) && a23 <= 600000)) || ((a25 == 12 && a23 <= 138) && a4 == 1)) || ((((277 < a29 && a23 + 43 <= 0) && a4 <= 0) && a25 <= 9) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a23 <= 312 && 0 < a23 + 43) && a4 == 1) && a25 <= 9) && a8 == 15) || ((((a25 == 13 && 306 < a23) && a4 == 1) && a8 == 15) && a23 <= 600000)) || ((((277 < a29 && a23 <= 312) && a25 == 13) && a4 == 1) && a8 == 15)) || ((((((!(12 == a25) || a23 <= 306) || a29 <= 277) && a23 <= 312) && a25 == 12) && a4 == 1) && a8 == 15)) || ((((a29 <= 274 && a25 == 12) && 246 <= a29) && a4 <= 0) && a8 == 15)) || ((((a29 <= 274 && a25 <= 10) && 141 <= a29) && a4 == 1) && a8 == 15)) || ((((a29 <= 130 && 0 <= a29 + 28553) && a4 <= 0) && a8 == 15) && a23 + 55 <= 0)) || (((a25 == 10 && a4 == 1) && a8 == 15) && a23 <= 600000)) || ((((a29 <= 275 && a25 == 12) && 260 <= a29) && a4 <= 0) && a8 == 15)) || ((((((a29 < 276 && a25 <= 10) && a3 == 1) && 260 <= a29) && a4 == 1) || (((a25 == 13 && a29 <= 245) && 141 <= a29) && a4 == 1)) && a8 == 15)) || ((((a25 == 12 && a29 <= 130) && a4 <= 0) && a8 == 15) && a23 + 55 <= 0)) || ((((a29 <= 245 && a23 + 43 <= 0) && a4 <= 0) && a25 <= 9) && a8 == 15)) || (((((a29 <= 274 && a25 == 12) && 141 <= a29) && a4 <= 0) && a8 == 15) && a23 <= 600000)) || (((0 < a23 + 43 || !(9 == a25)) || 140 < a29) && (((130 <= a29 && a23 <= 138) && a4 == 1) || ((a23 <= 138 && a25 <= 10) && a4 == 1)))) || ((((((a25 == 13 && 0 < a23 + 43) && a29 <= 130) && 0 <= a29 + 28553) && a4 == 1) && a8 == 15) && a23 <= 600000)) || ((((a29 <= 274 && 141 <= a29) && a4 == 1) && a8 == 15) && a23 <= 600000)) || (((((((!(12 == a25) || a23 <= 306) || a29 <= 277) && 306 < a23) && 246 <= a29) && a4 == 1) && a8 == 15) && a23 <= 600000)) || ((a25 == 12 && a23 <= 138) && a4 == 1)) || ((((277 < a29 && a23 + 43 <= 0) && a4 <= 0) && a25 <= 9) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-17 04:28:12,058 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