./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/AllInterval-006.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/xcsp/AllInterval-006.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 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 07:42:04,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:42:04,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:42:04,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:42:04,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:42:04,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:42:04,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:42:04,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:42:04,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:42:04,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:42:04,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:42:04,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:42:04,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:42:04,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:42:04,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:42:04,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:42:04,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:42:04,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:42:04,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:42:04,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:42:04,162 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:42:04,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:42:04,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:42:04,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:42:04,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:42:04,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:42:04,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:42:04,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:42:04,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:42:04,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:42:04,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:42:04,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:42:04,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:42:04,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:42:04,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:42:04,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:42:04,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:42:04,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:42:04,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:42:04,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:42:04,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:42:04,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:42:04,178 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:42:04,209 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:42:04,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:42:04,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:42:04,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:42:04,211 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:42:04,211 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:42:04,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:42:04,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:42:04,212 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:42:04,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:42:04,213 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:42:04,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:42:04,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:42:04,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:42:04,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:42:04,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:42:04,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:42:04,214 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:42:04,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:42:04,215 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:42:04,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:42:04,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:42:04,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:42:04,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:42:04,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:42:04,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:42:04,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:42:04,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:42:04,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:42:04,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:42:04,217 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:42:04,217 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:42:04,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:42:04,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f [2022-07-12 07:42:04,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:42:04,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:42:04,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:42:04,441 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:42:04,442 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:42:04,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-006.c [2022-07-12 07:42:04,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce78c752d/1864af8f4863443f9c0f9fed3683472c/FLAG447f4cb6c [2022-07-12 07:42:04,877 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:42:04,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-006.c [2022-07-12 07:42:04,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce78c752d/1864af8f4863443f9c0f9fed3683472c/FLAG447f4cb6c [2022-07-12 07:42:04,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce78c752d/1864af8f4863443f9c0f9fed3683472c [2022-07-12 07:42:04,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:42:04,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:42:04,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:42:04,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:42:04,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:42:04,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:42:04" (1/1) ... [2022-07-12 07:42:04,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cb794c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:04, skipping insertion in model container [2022-07-12 07:42:04,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:42:04" (1/1) ... [2022-07-12 07:42:04,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:42:04,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:42:05,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-006.c[3098,3111] [2022-07-12 07:42:05,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:42:05,083 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:42:05,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-006.c[3098,3111] [2022-07-12 07:42:05,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:42:05,112 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:42:05,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05 WrapperNode [2022-07-12 07:42:05,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:42:05,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:42:05,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:42:05,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:42:05,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05" (1/1) ... [2022-07-12 07:42:05,139 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05" (1/1) ... [2022-07-12 07:42:05,158 INFO L137 Inliner]: procedures = 13, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 144 [2022-07-12 07:42:05,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:42:05,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:42:05,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:42:05,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:42:05,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05" (1/1) ... [2022-07-12 07:42:05,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05" (1/1) ... [2022-07-12 07:42:05,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05" (1/1) ... [2022-07-12 07:42:05,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05" (1/1) ... [2022-07-12 07:42:05,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05" (1/1) ... [2022-07-12 07:42:05,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05" (1/1) ... [2022-07-12 07:42:05,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05" (1/1) ... [2022-07-12 07:42:05,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:42:05,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:42:05,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:42:05,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:42:05,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05" (1/1) ... [2022-07-12 07:42:05,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:42:05,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:42:05,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 07:42:05,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 07:42:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:42:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:42:05,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:42:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:42:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-07-12 07:42:05,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-07-12 07:42:05,328 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:42:05,333 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:42:05,480 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:42:05,493 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:42:05,494 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 07:42:05,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:42:05 BoogieIcfgContainer [2022-07-12 07:42:05,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:42:05,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:42:05,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:42:05,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:42:05,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:42:04" (1/3) ... [2022-07-12 07:42:05,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b9752a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:42:05, skipping insertion in model container [2022-07-12 07:42:05,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:42:05" (2/3) ... [2022-07-12 07:42:05,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b9752a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:42:05, skipping insertion in model container [2022-07-12 07:42:05,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:42:05" (3/3) ... [2022-07-12 07:42:05,516 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2022-07-12 07:42:05,535 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:42:05,536 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 07:42:05,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:42:05,607 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@65670af5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6db4d66a [2022-07-12 07:42:05,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 07:42:05,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-07-12 07:42:05,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-12 07:42:05,641 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:42:05,642 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:42:05,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:42:05,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:42:05,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1899664910, now seen corresponding path program 1 times [2022-07-12 07:42:05,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:42:05,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478018050] [2022-07-12 07:42:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:42:05,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:42:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:05,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 07:42:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:05,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 07:42:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:05,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 07:42:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:05,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 07:42:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:05,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 07:42:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:05,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 07:42:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 07:42:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:05,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 07:42:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:05,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 07:42:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:05,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 07:42:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 07:42:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 07:42:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 07:42:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:42:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:42:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 07:42:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 07:42:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 07:42:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 07:42:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 07:42:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 07:42:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 07:42:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 07:42:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 07:42:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 07:42:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 07:42:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 07:42:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 07:42:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 07:42:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 07:42:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 07:42:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 07:42:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 07:42:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 07:42:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 07:42:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 07:42:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 07:42:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 07:42:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-12 07:42:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-12 07:42:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 07:42:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 07:42:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-12 07:42:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-12 07:42:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 07:42:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-12 07:42:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-12 07:42:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-12 07:42:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-12 07:42:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-12 07:42:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 07:42:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 07:42:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2022-07-12 07:42:06,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:42:06,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478018050] [2022-07-12 07:42:06,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478018050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:42:06,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:42:06,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 07:42:06,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826915097] [2022-07-12 07:42:06,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:42:06,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 07:42:06,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:42:06,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 07:42:06,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 07:42:06,253 INFO L87 Difference]: Start difference. First operand has 89 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-12 07:42:06,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:42:06,311 INFO L93 Difference]: Finished difference Result 172 states and 336 transitions. [2022-07-12 07:42:06,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 07:42:06,315 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) Word has length 289 [2022-07-12 07:42:06,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:42:06,324 INFO L225 Difference]: With dead ends: 172 [2022-07-12 07:42:06,325 INFO L226 Difference]: Without dead ends: 86 [2022-07-12 07:42:06,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 07:42:06,342 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:42:06,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:42:06,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-07-12 07:42:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-07-12 07:42:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 32 states have (on average 1.15625) internal successors, (37), 32 states have internal predecessors, (37), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-07-12 07:42:06,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 141 transitions. [2022-07-12 07:42:06,389 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 141 transitions. Word has length 289 [2022-07-12 07:42:06,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:42:06,390 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 141 transitions. [2022-07-12 07:42:06,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-12 07:42:06,390 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 141 transitions. [2022-07-12 07:42:06,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-12 07:42:06,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:42:06,395 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:42:06,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:42:06,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:42:06,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:42:06,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1263147558, now seen corresponding path program 1 times [2022-07-12 07:42:06,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:42:06,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637014232] [2022-07-12 07:42:06,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:42:06,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:42:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 07:42:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 07:42:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 07:42:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 07:42:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 07:42:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 07:42:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 07:42:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 07:42:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 07:42:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 07:42:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 07:42:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 07:42:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 07:42:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:42:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:42:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 07:42:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 07:42:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 07:42:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 07:42:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 07:42:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 07:42:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 07:42:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 07:42:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 07:42:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 07:42:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 07:42:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 07:42:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 07:42:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 07:42:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 07:42:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 07:42:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 07:42:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 07:42:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 07:42:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 07:42:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 07:42:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 07:42:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 07:42:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-12 07:42:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-12 07:42:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 07:42:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 07:42:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-12 07:42:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-12 07:42:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 07:42:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-12 07:42:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-12 07:42:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-12 07:42:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-12 07:42:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-12 07:42:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 07:42:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 07:42:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,171 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 684 proven. 576 refuted. 0 times theorem prover too weak. 4044 trivial. 0 not checked. [2022-07-12 07:42:08,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:42:08,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637014232] [2022-07-12 07:42:08,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637014232] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 07:42:08,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664422162] [2022-07-12 07:42:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:42:08,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:42:08,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:42:08,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 07:42:08,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 07:42:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:08,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 82 conjunts are in the unsatisfiable core [2022-07-12 07:42:08,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 07:42:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 981 proven. 543 refuted. 0 times theorem prover too weak. 3780 trivial. 0 not checked. [2022-07-12 07:42:09,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 07:42:11,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 777 proven. 576 refuted. 0 times theorem prover too weak. 3951 trivial. 0 not checked. [2022-07-12 07:42:11,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664422162] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 07:42:11,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 07:42:11,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 27] total 67 [2022-07-12 07:42:11,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681880931] [2022-07-12 07:42:11,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 07:42:11,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-07-12 07:42:11,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:42:11,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-07-12 07:42:11,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=420, Invalid=4002, Unknown=0, NotChecked=0, Total=4422 [2022-07-12 07:42:11,667 INFO L87 Difference]: Start difference. First operand 86 states and 141 transitions. Second operand has 67 states, 52 states have (on average 1.5769230769230769) internal successors, (82), 47 states have internal predecessors, (82), 40 states have call successors, (142), 2 states have call predecessors, (142), 3 states have return successors, (143), 37 states have call predecessors, (143), 40 states have call successors, (143) [2022-07-12 07:42:16,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:42:16,652 INFO L93 Difference]: Finished difference Result 160 states and 234 transitions. [2022-07-12 07:42:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-07-12 07:42:16,653 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 52 states have (on average 1.5769230769230769) internal successors, (82), 47 states have internal predecessors, (82), 40 states have call successors, (142), 2 states have call predecessors, (142), 3 states have return successors, (143), 37 states have call predecessors, (143), 40 states have call successors, (143) Word has length 289 [2022-07-12 07:42:16,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:42:16,655 INFO L225 Difference]: With dead ends: 160 [2022-07-12 07:42:16,656 INFO L226 Difference]: Without dead ends: 152 [2022-07-12 07:42:16,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 649 SyntacticMatches, 3 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1954 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1935, Invalid=7571, Unknown=0, NotChecked=0, Total=9506 [2022-07-12 07:42:16,659 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 539 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 3510 mSolverCounterSat, 640 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 4150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 3510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:42:16,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1024 Invalid, 4150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 3510 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 07:42:16,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-07-12 07:42:16,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 102. [2022-07-12 07:42:16,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 44 states have internal predecessors, (52), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-07-12 07:42:16,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 164 transitions. [2022-07-12 07:42:16,689 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 164 transitions. Word has length 289 [2022-07-12 07:42:16,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:42:16,691 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 164 transitions. [2022-07-12 07:42:16,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 52 states have (on average 1.5769230769230769) internal successors, (82), 47 states have internal predecessors, (82), 40 states have call successors, (142), 2 states have call predecessors, (142), 3 states have return successors, (143), 37 states have call predecessors, (143), 40 states have call successors, (143) [2022-07-12 07:42:16,693 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 164 transitions. [2022-07-12 07:42:16,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-12 07:42:16,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:42:16,699 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:42:16,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 07:42:16,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:42:16,907 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:42:16,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:42:16,908 INFO L85 PathProgramCache]: Analyzing trace with hash 453800932, now seen corresponding path program 1 times [2022-07-12 07:42:16,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:42:16,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13076697] [2022-07-12 07:42:16,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:42:16,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:42:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 07:42:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 07:42:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 07:42:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 07:42:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 07:42:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 07:42:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 07:42:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 07:42:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 07:42:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 07:42:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 07:42:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 07:42:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 07:42:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:42:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:42:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 07:42:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 07:42:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 07:42:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 07:42:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 07:42:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 07:42:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 07:42:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 07:42:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 07:42:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 07:42:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 07:42:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 07:42:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 07:42:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 07:42:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 07:42:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 07:42:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 07:42:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 07:42:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 07:42:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 07:42:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 07:42:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 07:42:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 07:42:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-12 07:42:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-12 07:42:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 07:42:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 07:42:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-12 07:42:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-12 07:42:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 07:42:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-12 07:42:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-12 07:42:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-12 07:42:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-12 07:42:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-12 07:42:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 07:42:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 07:42:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,630 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 927 proven. 513 refuted. 0 times theorem prover too weak. 3864 trivial. 0 not checked. [2022-07-12 07:42:18,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:42:18,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13076697] [2022-07-12 07:42:18,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13076697] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 07:42:18,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251216729] [2022-07-12 07:42:18,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:42:18,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:42:18,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:42:18,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 07:42:18,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 07:42:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:18,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 80 conjunts are in the unsatisfiable core [2022-07-12 07:42:18,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 07:42:20,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 1113 proven. 495 refuted. 0 times theorem prover too weak. 3696 trivial. 0 not checked. [2022-07-12 07:42:20,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 07:42:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 909 proven. 531 refuted. 0 times theorem prover too weak. 3864 trivial. 0 not checked. [2022-07-12 07:42:22,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251216729] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 07:42:22,125 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 07:42:22,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 25, 27] total 70 [2022-07-12 07:42:22,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727988175] [2022-07-12 07:42:22,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 07:42:22,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-07-12 07:42:22,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:42:22,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-07-12 07:42:22,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=4499, Unknown=0, NotChecked=0, Total=4830 [2022-07-12 07:42:22,130 INFO L87 Difference]: Start difference. First operand 102 states and 164 transitions. Second operand has 70 states, 51 states have (on average 1.588235294117647) internal successors, (81), 47 states have internal predecessors, (81), 39 states have call successors, (141), 2 states have call predecessors, (141), 3 states have return successors, (142), 36 states have call predecessors, (142), 39 states have call successors, (142) [2022-07-12 07:42:34,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:42:34,558 INFO L93 Difference]: Finished difference Result 156 states and 229 transitions. [2022-07-12 07:42:34,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-07-12 07:42:34,559 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 51 states have (on average 1.588235294117647) internal successors, (81), 47 states have internal predecessors, (81), 39 states have call successors, (141), 2 states have call predecessors, (141), 3 states have return successors, (142), 36 states have call predecessors, (142), 39 states have call successors, (142) Word has length 289 [2022-07-12 07:42:34,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:42:34,561 INFO L225 Difference]: With dead ends: 156 [2022-07-12 07:42:34,561 INFO L226 Difference]: Without dead ends: 144 [2022-07-12 07:42:34,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 651 SyntacticMatches, 2 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2390 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=2655, Invalid=10685, Unknown=0, NotChecked=0, Total=13340 [2022-07-12 07:42:34,564 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 416 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 5090 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 5659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 5090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:42:34,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1154 Invalid, 5659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 5090 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-12 07:42:34,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-07-12 07:42:34,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 98. [2022-07-12 07:42:34,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 41 states have (on average 1.170731707317073) internal successors, (48), 41 states have internal predecessors, (48), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-07-12 07:42:34,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 158 transitions. [2022-07-12 07:42:34,584 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 158 transitions. Word has length 289 [2022-07-12 07:42:34,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:42:34,584 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 158 transitions. [2022-07-12 07:42:34,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 51 states have (on average 1.588235294117647) internal successors, (81), 47 states have internal predecessors, (81), 39 states have call successors, (141), 2 states have call predecessors, (141), 3 states have return successors, (142), 36 states have call predecessors, (142), 39 states have call successors, (142) [2022-07-12 07:42:34,585 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 158 transitions. [2022-07-12 07:42:34,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-12 07:42:34,587 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:42:34,587 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:42:34,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 07:42:34,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-12 07:42:34,798 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:42:34,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:42:34,798 INFO L85 PathProgramCache]: Analyzing trace with hash 242079204, now seen corresponding path program 1 times [2022-07-12 07:42:34,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:42:34,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153582483] [2022-07-12 07:42:34,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:42:34,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:42:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 07:42:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 07:42:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 07:42:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 07:42:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 07:42:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 07:42:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 07:42:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 07:42:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 07:42:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 07:42:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 07:42:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 07:42:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 07:42:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:42:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:42:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 07:42:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 07:42:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 07:42:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 07:42:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 07:42:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 07:42:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 07:42:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 07:42:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 07:42:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 07:42:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 07:42:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 07:42:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 07:42:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 07:42:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 07:42:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 07:42:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 07:42:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 07:42:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 07:42:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 07:42:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 07:42:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 07:42:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 07:42:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-12 07:42:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-12 07:42:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 07:42:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 07:42:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-12 07:42:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-12 07:42:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 07:42:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-12 07:42:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-12 07:42:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-12 07:42:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-12 07:42:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-12 07:42:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 07:42:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 07:42:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:35,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 762 proven. 591 refuted. 0 times theorem prover too weak. 3951 trivial. 0 not checked. [2022-07-12 07:42:35,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:42:35,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153582483] [2022-07-12 07:42:35,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153582483] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 07:42:35,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338927105] [2022-07-12 07:42:35,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:42:35,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:42:35,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:42:35,904 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) [2022-07-12 07:42:35,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 07:42:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:42:36,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 76 conjunts are in the unsatisfiable core [2022-07-12 07:42:36,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 07:42:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 1276 proven. 411 refuted. 0 times theorem prover too weak. 3617 trivial. 0 not checked. [2022-07-12 07:42:38,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 07:42:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 876 proven. 477 refuted. 0 times theorem prover too weak. 3951 trivial. 0 not checked. [2022-07-12 07:42:39,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338927105] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 07:42:39,963 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 07:42:39,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 23, 23] total 57 [2022-07-12 07:42:39,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087271955] [2022-07-12 07:42:39,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 07:42:39,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-07-12 07:42:39,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:42:39,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-07-12 07:42:39,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=2937, Unknown=0, NotChecked=0, Total=3192 [2022-07-12 07:42:39,966 INFO L87 Difference]: Start difference. First operand 98 states and 158 transitions. Second operand has 57 states, 38 states have (on average 1.868421052631579) internal successors, (71), 35 states have internal predecessors, (71), 33 states have call successors, (134), 2 states have call predecessors, (134), 3 states have return successors, (136), 29 states have call predecessors, (136), 33 states have call successors, (136) [2022-07-12 07:42:47,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:42:47,742 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2022-07-12 07:42:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-07-12 07:42:47,742 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 38 states have (on average 1.868421052631579) internal successors, (71), 35 states have internal predecessors, (71), 33 states have call successors, (134), 2 states have call predecessors, (134), 3 states have return successors, (136), 29 states have call predecessors, (136), 33 states have call successors, (136) Word has length 289 [2022-07-12 07:42:47,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:42:47,744 INFO L225 Difference]: With dead ends: 147 [2022-07-12 07:42:47,744 INFO L226 Difference]: Without dead ends: 131 [2022-07-12 07:42:47,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 752 GetRequests, 658 SyntacticMatches, 1 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1193 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=1747, Invalid=7183, Unknown=0, NotChecked=0, Total=8930 [2022-07-12 07:42:47,746 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 381 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 3006 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 3640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 3006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 207 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:42:47,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1059 Invalid, 3640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 3006 Invalid, 0 Unknown, 207 Unchecked, 1.7s Time] [2022-07-12 07:42:47,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-07-12 07:42:47,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 94. [2022-07-12 07:42:47,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 38 states have internal predecessors, (44), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-07-12 07:42:47,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 152 transitions. [2022-07-12 07:42:47,764 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 152 transitions. Word has length 289 [2022-07-12 07:42:47,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:42:47,765 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 152 transitions. [2022-07-12 07:42:47,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 38 states have (on average 1.868421052631579) internal successors, (71), 35 states have internal predecessors, (71), 33 states have call successors, (134), 2 states have call predecessors, (134), 3 states have return successors, (136), 29 states have call predecessors, (136), 33 states have call successors, (136) [2022-07-12 07:42:47,765 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 152 transitions. [2022-07-12 07:42:47,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-12 07:42:47,771 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:42:47,771 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:42:47,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 07:42:47,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:42:47,972 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:42:47,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:42:47,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1129134052, now seen corresponding path program 1 times [2022-07-12 07:42:47,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:42:47,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823191841] [2022-07-12 07:42:47,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:42:47,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:42:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 07:43:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 07:43:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 07:43:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 07:43:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 07:43:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 07:43:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 07:43:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 07:43:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 07:43:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 07:43:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 07:43:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 07:43:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 07:43:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:43:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:43:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 07:43:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 07:43:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 07:43:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 07:43:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 07:43:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 07:43:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 07:43:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 07:43:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 07:43:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:06,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 07:43:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 07:43:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 07:43:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 07:43:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 07:43:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 07:43:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 07:43:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 07:43:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 07:43:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 07:43:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 07:43:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 07:43:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 07:43:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 07:43:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-12 07:43:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-12 07:43:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 07:43:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 07:43:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-12 07:43:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-12 07:43:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 07:43:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-12 07:43:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-12 07:43:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-12 07:43:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-12 07:43:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-12 07:43:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 07:43:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-12 07:43:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 1233 proven. 720 refuted. 0 times theorem prover too weak. 3351 trivial. 0 not checked. [2022-07-12 07:43:07,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:43:07,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823191841] [2022-07-12 07:43:07,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823191841] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 07:43:07,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319108457] [2022-07-12 07:43:07,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:43:07,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:43:07,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:43:07,671 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 07:43:07,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 07:43:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:07,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 162 conjunts are in the unsatisfiable core [2022-07-12 07:43:07,790 INFO L286 TraceCheckSpWp]: Computing forward predicates...