./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label36.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label36.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 1f02632fff6230a332a62c3e19b9c0e1537cb9f813d08c30374ad65993036a6c --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 11:22:18,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 11:22:18,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 11:22:18,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 11:22:18,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 11:22:18,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 11:22:18,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 11:22:18,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 11:22:18,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 11:22:18,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 11:22:18,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 11:22:18,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 11:22:18,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 11:22:18,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 11:22:18,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 11:22:18,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 11:22:18,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 11:22:18,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 11:22:18,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 11:22:18,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 11:22:18,293 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 11:22:18,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 11:22:18,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 11:22:18,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 11:22:18,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 11:22:18,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 11:22:18,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 11:22:18,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 11:22:18,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 11:22:18,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 11:22:18,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 11:22:18,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 11:22:18,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 11:22:18,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 11:22:18,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 11:22:18,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 11:22:18,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 11:22:18,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 11:22:18,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 11:22:18,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 11:22:18,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 11:22:18,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 11:22:18,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 11:22:18,335 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 11:22:18,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 11:22:18,336 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 11:22:18,336 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 11:22:18,337 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 11:22:18,337 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 11:22:18,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 11:22:18,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 11:22:18,338 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 11:22:18,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 11:22:18,338 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 11:22:18,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 11:22:18,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 11:22:18,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 11:22:18,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 11:22:18,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 11:22:18,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 11:22:18,339 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 11:22:18,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 11:22:18,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 11:22:18,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 11:22:18,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 11:22:18,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 11:22:18,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 11:22:18,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 11:22:18,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 11:22:18,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 11:22:18,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 11:22:18,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 11:22:18,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 11:22:18,341 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 11:22:18,341 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 11:22:18,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 11:22:18,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f02632fff6230a332a62c3e19b9c0e1537cb9f813d08c30374ad65993036a6c [2022-07-22 11:22:18,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 11:22:18,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 11:22:18,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 11:22:18,570 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 11:22:18,570 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 11:22:18,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label36.c [2022-07-22 11:22:18,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2594f496/9eddacb9c1d7405189475856b974ba06/FLAGe80360c18 [2022-07-22 11:22:19,112 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 11:22:19,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label36.c [2022-07-22 11:22:19,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2594f496/9eddacb9c1d7405189475856b974ba06/FLAGe80360c18 [2022-07-22 11:22:19,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2594f496/9eddacb9c1d7405189475856b974ba06 [2022-07-22 11:22:19,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 11:22:19,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 11:22:19,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 11:22:19,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 11:22:19,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 11:22:19,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e1ef12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19, skipping insertion in model container [2022-07-22 11:22:19,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 11:22:19,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 11:22:19,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label36.c[18233,18246] [2022-07-22 11:22:19,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:22:19,472 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 11:22:19,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label36.c[18233,18246] [2022-07-22 11:22:19,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:22:19,598 INFO L208 MainTranslator]: Completed translation [2022-07-22 11:22:19,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19 WrapperNode [2022-07-22 11:22:19,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 11:22:19,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 11:22:19,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 11:22:19,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 11:22:19,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,662 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2022-07-22 11:22:19,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 11:22:19,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 11:22:19,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 11:22:19,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 11:22:19,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 11:22:19,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 11:22:19,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 11:22:19,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 11:22:19,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19" (1/1) ... [2022-07-22 11:22:19,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 11:22:19,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:22:19,769 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) [2022-07-22 11:22:19,773 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 [2022-07-22 11:22:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 11:22:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 11:22:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 11:22:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 11:22:19,838 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 11:22:19,839 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 11:22:20,525 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 11:22:20,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 11:22:20,534 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 11:22:20,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:22:20 BoogieIcfgContainer [2022-07-22 11:22:20,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 11:22:20,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 11:22:20,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 11:22:20,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 11:22:20,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:22:19" (1/3) ... [2022-07-22 11:22:20,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5499fd5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:22:20, skipping insertion in model container [2022-07-22 11:22:20,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:19" (2/3) ... [2022-07-22 11:22:20,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5499fd5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:22:20, skipping insertion in model container [2022-07-22 11:22:20,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:22:20" (3/3) ... [2022-07-22 11:22:20,543 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label36.c [2022-07-22 11:22:20,553 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 11:22:20,553 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 11:22:20,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 11:22:20,605 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@13eef32f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@67f97b8e [2022-07-22 11:22:20,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 11:22:20,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:20,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-22 11:22:20,631 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:20,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:20,632 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:20,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:20,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2059373479, now seen corresponding path program 1 times [2022-07-22 11:22:20,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:20,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763211399] [2022-07-22 11:22:20,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:20,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:20,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:22:20,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:20,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763211399] [2022-07-22 11:22:20,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763211399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:20,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:20,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 11:22:20,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361414054] [2022-07-22 11:22:20,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:20,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:20,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:21,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:21,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:21,009 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:21,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:21,496 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2022-07-22 11:22:21,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:21,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-07-22 11:22:21,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:21,505 INFO L225 Difference]: With dead ends: 528 [2022-07-22 11:22:21,505 INFO L226 Difference]: Without dead ends: 266 [2022-07-22 11:22:21,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:21,510 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 70 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:21,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 84 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 11:22:21,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-07-22 11:22:21,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-07-22 11:22:21,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:21,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2022-07-22 11:22:21,543 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 102 [2022-07-22 11:22:21,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:21,544 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2022-07-22 11:22:21,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:21,544 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2022-07-22 11:22:21,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-22 11:22:21,545 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:21,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:21,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 11:22:21,546 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:21,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:21,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1045586682, now seen corresponding path program 1 times [2022-07-22 11:22:21,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:21,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021366071] [2022-07-22 11:22:21,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:21,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:21,589 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:22:21,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:21,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021366071] [2022-07-22 11:22:21,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021366071] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:21,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:21,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 11:22:21,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977744526] [2022-07-22 11:22:21,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:21,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:21,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:21,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:21,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:21,592 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:21,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:21,900 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2022-07-22 11:22:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:21,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-07-22 11:22:21,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:21,903 INFO L225 Difference]: With dead ends: 792 [2022-07-22 11:22:21,903 INFO L226 Difference]: Without dead ends: 528 [2022-07-22 11:22:21,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:21,904 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:21,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 36 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 11:22:21,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-07-22 11:22:21,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-07-22 11:22:21,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3453510436432639) internal successors, (709), 527 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:21,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2022-07-22 11:22:21,924 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 108 [2022-07-22 11:22:21,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:21,924 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2022-07-22 11:22:21,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:21,924 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2022-07-22 11:22:21,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-22 11:22:21,926 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:21,927 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:21,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 11:22:21,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:21,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:21,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1471586822, now seen corresponding path program 1 times [2022-07-22 11:22:21,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:21,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563456438] [2022-07-22 11:22:21,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:21,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:22:22,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:22,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563456438] [2022-07-22 11:22:22,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563456438] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:22,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:22,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:22:22,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867890029] [2022-07-22 11:22:22,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:22,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 11:22:22,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:22,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 11:22:22,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 11:22:22,100 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:22,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:22,564 INFO L93 Difference]: Finished difference Result 1411 states and 1882 transitions. [2022-07-22 11:22:22,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 11:22:22,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-07-22 11:22:22,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:22,567 INFO L225 Difference]: With dead ends: 1411 [2022-07-22 11:22:22,567 INFO L226 Difference]: Without dead ends: 790 [2022-07-22 11:22:22,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 11:22:22,569 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 130 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:22,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 81 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 11:22:22,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-07-22 11:22:22,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2022-07-22 11:22:22,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.1634980988593155) internal successors, (918), 789 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:22,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 918 transitions. [2022-07-22 11:22:22,585 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 918 transitions. Word has length 109 [2022-07-22 11:22:22,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:22,585 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 918 transitions. [2022-07-22 11:22:22,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:22,585 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 918 transitions. [2022-07-22 11:22:22,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-22 11:22:22,587 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:22,587 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:22,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 11:22:22,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:22,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:22,588 INFO L85 PathProgramCache]: Analyzing trace with hash -157225395, now seen corresponding path program 1 times [2022-07-22 11:22:22,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:22,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736263398] [2022-07-22 11:22:22,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:22,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 11:22:22,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:22,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736263398] [2022-07-22 11:22:22,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736263398] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:22,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:22,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 11:22:22,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948749248] [2022-07-22 11:22:22,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:22,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:22,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:22,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:22,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:22,623 INFO L87 Difference]: Start difference. First operand 790 states and 918 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:22,884 INFO L93 Difference]: Finished difference Result 1578 states and 1859 transitions. [2022-07-22 11:22:22,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:22,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-22 11:22:22,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:22,887 INFO L225 Difference]: With dead ends: 1578 [2022-07-22 11:22:22,887 INFO L226 Difference]: Without dead ends: 921 [2022-07-22 11:22:22,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:22,889 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 129 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:22,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 45 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 11:22:22,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-07-22 11:22:22,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2022-07-22 11:22:22,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.1532608695652173) internal successors, (1061), 920 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:22,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1061 transitions. [2022-07-22 11:22:22,901 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1061 transitions. Word has length 114 [2022-07-22 11:22:22,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:22,901 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1061 transitions. [2022-07-22 11:22:22,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:22,902 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1061 transitions. [2022-07-22 11:22:22,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-22 11:22:22,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:22,904 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:22,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 11:22:22,904 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:22,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:22,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1991466069, now seen corresponding path program 1 times [2022-07-22 11:22:22,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:22,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062137369] [2022-07-22 11:22:22,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:22,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:22,946 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 11:22:22,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:22,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062137369] [2022-07-22 11:22:22,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062137369] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:22,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:22,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:22:22,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758691118] [2022-07-22 11:22:22,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:22,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:22,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:22,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:22,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:22,949 INFO L87 Difference]: Start difference. First operand 921 states and 1061 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:23,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:23,208 INFO L93 Difference]: Finished difference Result 2364 states and 2732 transitions. [2022-07-22 11:22:23,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:23,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-07-22 11:22:23,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:23,212 INFO L225 Difference]: With dead ends: 2364 [2022-07-22 11:22:23,212 INFO L226 Difference]: Without dead ends: 1576 [2022-07-22 11:22:23,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:23,214 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:23,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 19 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 11:22:23,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2022-07-22 11:22:23,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1183. [2022-07-22 11:22:23,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.1505922165820643) internal successors, (1360), 1182 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:23,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1360 transitions. [2022-07-22 11:22:23,231 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1360 transitions. Word has length 123 [2022-07-22 11:22:23,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:23,232 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1360 transitions. [2022-07-22 11:22:23,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:23,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1360 transitions. [2022-07-22 11:22:23,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-22 11:22:23,234 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:23,234 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:23,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 11:22:23,234 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:23,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:23,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1453681636, now seen corresponding path program 1 times [2022-07-22 11:22:23,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:23,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082893851] [2022-07-22 11:22:23,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:23,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:23,271 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 11:22:23,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:23,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082893851] [2022-07-22 11:22:23,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082893851] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:23,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:23,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:22:23,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530259419] [2022-07-22 11:22:23,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:23,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 11:22:23,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:23,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 11:22:23,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 11:22:23,274 INFO L87 Difference]: Start difference. First operand 1183 states and 1360 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:23,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:23,676 INFO L93 Difference]: Finished difference Result 2495 states and 2925 transitions. [2022-07-22 11:22:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 11:22:23,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-07-22 11:22:23,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:23,679 INFO L225 Difference]: With dead ends: 2495 [2022-07-22 11:22:23,679 INFO L226 Difference]: Without dead ends: 1445 [2022-07-22 11:22:23,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 11:22:23,681 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 262 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:23,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 34 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 11:22:23,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2022-07-22 11:22:23,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2022-07-22 11:22:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.144736842105263) internal successors, (1653), 1444 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1653 transitions. [2022-07-22 11:22:23,699 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1653 transitions. Word has length 129 [2022-07-22 11:22:23,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:23,699 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 1653 transitions. [2022-07-22 11:22:23,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1653 transitions. [2022-07-22 11:22:23,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-22 11:22:23,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:23,701 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:23,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 11:22:23,702 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:23,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:23,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1636914809, now seen corresponding path program 1 times [2022-07-22 11:22:23,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:23,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217313334] [2022-07-22 11:22:23,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:23,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:23,784 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 11:22:23,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:23,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217313334] [2022-07-22 11:22:23,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217313334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:23,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:23,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:22:23,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87809920] [2022-07-22 11:22:23,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:23,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 11:22:23,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:23,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 11:22:23,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 11:22:23,786 INFO L87 Difference]: Start difference. First operand 1445 states and 1653 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:24,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:24,198 INFO L93 Difference]: Finished difference Result 3281 states and 3775 transitions. [2022-07-22 11:22:24,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 11:22:24,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-07-22 11:22:24,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:24,203 INFO L225 Difference]: With dead ends: 3281 [2022-07-22 11:22:24,203 INFO L226 Difference]: Without dead ends: 1969 [2022-07-22 11:22:24,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 11:22:24,205 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 371 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:24,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 42 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 11:22:24,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2022-07-22 11:22:24,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2022-07-22 11:22:24,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.136091453456723) internal successors, (2087), 1837 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:24,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2087 transitions. [2022-07-22 11:22:24,231 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2087 transitions. Word has length 143 [2022-07-22 11:22:24,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:24,231 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 2087 transitions. [2022-07-22 11:22:24,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:24,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2087 transitions. [2022-07-22 11:22:24,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-07-22 11:22:24,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:24,234 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:24,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 11:22:24,234 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:24,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:24,234 INFO L85 PathProgramCache]: Analyzing trace with hash -359253316, now seen corresponding path program 1 times [2022-07-22 11:22:24,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:24,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642469232] [2022-07-22 11:22:24,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:24,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 11:22:24,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:24,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642469232] [2022-07-22 11:22:24,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642469232] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:24,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:24,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:22:24,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266058348] [2022-07-22 11:22:24,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:24,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 11:22:24,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:24,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 11:22:24,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 11:22:24,323 INFO L87 Difference]: Start difference. First operand 1838 states and 2087 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:24,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:24,680 INFO L93 Difference]: Finished difference Result 3805 states and 4312 transitions. [2022-07-22 11:22:24,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 11:22:24,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2022-07-22 11:22:24,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:24,686 INFO L225 Difference]: With dead ends: 3805 [2022-07-22 11:22:24,686 INFO L226 Difference]: Without dead ends: 2100 [2022-07-22 11:22:24,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 11:22:24,688 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 275 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:24,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 33 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 11:22:24,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-07-22 11:22:24,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2022-07-22 11:22:24,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1295590636908002) internal successors, (2075), 1837 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:24,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2075 transitions. [2022-07-22 11:22:24,713 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2075 transitions. Word has length 160 [2022-07-22 11:22:24,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:24,713 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 2075 transitions. [2022-07-22 11:22:24,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2075 transitions. [2022-07-22 11:22:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-22 11:22:24,716 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:24,716 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:24,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 11:22:24,716 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:24,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:24,717 INFO L85 PathProgramCache]: Analyzing trace with hash 21711964, now seen corresponding path program 1 times [2022-07-22 11:22:24,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:24,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724862357] [2022-07-22 11:22:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:24,767 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-22 11:22:24,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:24,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724862357] [2022-07-22 11:22:24,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724862357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:24,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:24,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:22:24,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022514835] [2022-07-22 11:22:24,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:24,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:24,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:24,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:24,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:24,769 INFO L87 Difference]: Start difference. First operand 1838 states and 2075 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:25,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:25,043 INFO L93 Difference]: Finished difference Result 3936 states and 4452 transitions. [2022-07-22 11:22:25,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:25,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2022-07-22 11:22:25,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:25,048 INFO L225 Difference]: With dead ends: 3936 [2022-07-22 11:22:25,049 INFO L226 Difference]: Without dead ends: 2231 [2022-07-22 11:22:25,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:25,051 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 86 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:25,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 180 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 11:22:25,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-07-22 11:22:25,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2100. [2022-07-22 11:22:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.120057170080991) internal successors, (2351), 2099 states have internal predecessors, (2351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:25,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2351 transitions. [2022-07-22 11:22:25,081 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2351 transitions. Word has length 203 [2022-07-22 11:22:25,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:25,081 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2351 transitions. [2022-07-22 11:22:25,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:25,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2351 transitions. [2022-07-22 11:22:25,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-22 11:22:25,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:25,084 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:25,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 11:22:25,085 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:25,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:25,085 INFO L85 PathProgramCache]: Analyzing trace with hash -908217879, now seen corresponding path program 1 times [2022-07-22 11:22:25,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:25,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089339181] [2022-07-22 11:22:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:25,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:25,276 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 57 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:22:25,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:25,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089339181] [2022-07-22 11:22:25,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089339181] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:22:25,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054292903] [2022-07-22 11:22:25,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:25,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:25,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:22:25,293 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) [2022-07-22 11:22:25,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 11:22:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:25,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 11:22:25,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:22:25,632 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-07-22 11:22:25,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 11:22:25,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054292903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:25,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 11:22:25,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-22 11:22:25,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726578117] [2022-07-22 11:22:25,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:25,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:25,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:25,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:25,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-22 11:22:25,634 INFO L87 Difference]: Start difference. First operand 2100 states and 2351 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:25,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:25,877 INFO L93 Difference]: Finished difference Result 4198 states and 4700 transitions. [2022-07-22 11:22:25,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:25,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2022-07-22 11:22:25,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:25,884 INFO L225 Difference]: With dead ends: 4198 [2022-07-22 11:22:25,884 INFO L226 Difference]: Without dead ends: 2100 [2022-07-22 11:22:25,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-22 11:22:25,887 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 42 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:25,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 170 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 11:22:25,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-07-22 11:22:25,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969. [2022-07-22 11:22:25,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.100609756097561) internal successors, (2166), 1968 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:25,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2166 transitions. [2022-07-22 11:22:25,920 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2166 transitions. Word has length 206 [2022-07-22 11:22:25,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:25,921 INFO L495 AbstractCegarLoop]: Abstraction has 1969 states and 2166 transitions. [2022-07-22 11:22:25,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2166 transitions. [2022-07-22 11:22:25,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-22 11:22:25,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:25,924 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:25,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 11:22:26,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 11:22:26,139 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:26,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:26,140 INFO L85 PathProgramCache]: Analyzing trace with hash -737855579, now seen corresponding path program 1 times [2022-07-22 11:22:26,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:26,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804885980] [2022-07-22 11:22:26,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:26,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 64 proven. 119 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-22 11:22:26,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:26,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804885980] [2022-07-22 11:22:26,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804885980] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:22:26,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589147213] [2022-07-22 11:22:26,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:26,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:26,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:22:26,280 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) [2022-07-22 11:22:26,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 11:22:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:26,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 11:22:26,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:22:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-22 11:22:26,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 11:22:26,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589147213] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:26,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 11:22:26,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-22 11:22:26,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280661247] [2022-07-22 11:22:26,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:26,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:26,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:26,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:26,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 11:22:26,548 INFO L87 Difference]: Start difference. First operand 1969 states and 2166 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:26,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:26,915 INFO L93 Difference]: Finished difference Result 4329 states and 4757 transitions. [2022-07-22 11:22:26,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:26,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2022-07-22 11:22:26,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:26,920 INFO L225 Difference]: With dead ends: 4329 [2022-07-22 11:22:26,920 INFO L226 Difference]: Without dead ends: 2231 [2022-07-22 11:22:26,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 11:22:26,922 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 32 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:26,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 184 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 11:22:26,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-07-22 11:22:26,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2100. [2022-07-22 11:22:26,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.0809909480705098) internal successors, (2269), 2099 states have internal predecessors, (2269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:26,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2269 transitions. [2022-07-22 11:22:26,963 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2269 transitions. Word has length 225 [2022-07-22 11:22:26,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:26,963 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2269 transitions. [2022-07-22 11:22:26,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:26,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2269 transitions. [2022-07-22 11:22:26,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-22 11:22:26,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:26,966 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:26,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-22 11:22:27,179 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,SelfDestructingSolverStorable10 [2022-07-22 11:22:27,179 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:27,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:27,180 INFO L85 PathProgramCache]: Analyzing trace with hash 326532960, now seen corresponding path program 1 times [2022-07-22 11:22:27,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:27,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93126216] [2022-07-22 11:22:27,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:27,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 67 proven. 122 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-22 11:22:27,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:27,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93126216] [2022-07-22 11:22:27,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93126216] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:22:27,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433582705] [2022-07-22 11:22:27,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:27,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:27,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:22:27,250 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) [2022-07-22 11:22:27,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 11:22:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:27,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 11:22:27,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:22:27,430 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-22 11:22:27,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 11:22:27,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433582705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:27,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 11:22:27,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-22 11:22:27,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775122094] [2022-07-22 11:22:27,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:27,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:27,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:27,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:27,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 11:22:27,432 INFO L87 Difference]: Start difference. First operand 2100 states and 2269 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:27,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:27,673 INFO L93 Difference]: Finished difference Result 4198 states and 4536 transitions. [2022-07-22 11:22:27,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:27,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 228 [2022-07-22 11:22:27,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:27,678 INFO L225 Difference]: With dead ends: 4198 [2022-07-22 11:22:27,678 INFO L226 Difference]: Without dead ends: 2100 [2022-07-22 11:22:27,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 11:22:27,681 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 38 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:27,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 172 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 11:22:27,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-07-22 11:22:27,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2022-07-22 11:22:27,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.0620577027762657) internal successors, (1951), 1837 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:27,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1951 transitions. [2022-07-22 11:22:27,707 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1951 transitions. Word has length 228 [2022-07-22 11:22:27,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:27,707 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 1951 transitions. [2022-07-22 11:22:27,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:27,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1951 transitions. [2022-07-22 11:22:27,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-07-22 11:22:27,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:27,710 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:27,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 11:22:27,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:27,928 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:27,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:27,929 INFO L85 PathProgramCache]: Analyzing trace with hash -799899186, now seen corresponding path program 1 times [2022-07-22 11:22:27,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:27,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136504237] [2022-07-22 11:22:27,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:27,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:28,028 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 86 proven. 141 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-22 11:22:28,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:28,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136504237] [2022-07-22 11:22:28,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136504237] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:22:28,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21688964] [2022-07-22 11:22:28,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:28,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:28,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:22:28,044 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) [2022-07-22 11:22:28,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 11:22:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:28,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 11:22:28,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:22:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-07-22 11:22:28,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 11:22:28,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21688964] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:28,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 11:22:28,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-22 11:22:28,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583808097] [2022-07-22 11:22:28,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:28,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:28,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:28,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:28,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 11:22:28,246 INFO L87 Difference]: Start difference. First operand 1838 states and 1951 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:28,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:28,495 INFO L93 Difference]: Finished difference Result 2231 states and 2360 transitions. [2022-07-22 11:22:28,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:28,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2022-07-22 11:22:28,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:28,496 INFO L225 Difference]: With dead ends: 2231 [2022-07-22 11:22:28,496 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 11:22:28,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 11:22:28,498 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 54 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:28,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 27 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 11:22:28,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 11:22:28,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 11:22:28,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:28,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 11:22:28,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 247 [2022-07-22 11:22:28,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:28,500 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 11:22:28,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:28,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 11:22:28,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 11:22:28,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 11:22:28,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 11:22:28,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:28,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 11:22:29,163 INFO L899 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2022-07-22 11:22:29,163 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-07-22 11:22:29,163 INFO L899 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2022-07-22 11:22:29,163 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2022-07-22 11:22:29,163 INFO L899 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2022-07-22 11:22:29,163 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2022-07-22 11:22:29,163 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2022-07-22 11:22:29,163 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2022-07-22 11:22:29,163 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,164 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2022-07-22 11:22:29,165 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,166 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,167 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,168 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L895 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse6 (<= 15 ~a8~0)) (.cse8 (<= 14 ~a8~0)) (.cse0 (<= ~a21~0 0)) (.cse4 (= ~a16~0 6)) (.cse7 (= ~a17~0 1)) (.cse2 (= ~a20~0 1)) (.cse3 (<= ~a20~0 0)) (.cse5 (= ~a21~0 1)) (.cse9 (<= ~a16~0 5)) (.cse1 (<= ~a16~0 4))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6) (and .cse5 .cse2 .cse6) (and .cse0 .cse7 .cse2) (and .cse3 .cse0 .cse7 .cse1) (and .cse3 .cse8 .cse5 .cse9) (and .cse8 .cse5 .cse9 .cse2) (and .cse4 .cse0 .cse2) (and .cse5 .cse1 .cse2) (and (= ~a12~0 8) .cse4 .cse5 .cse7 .cse2) (and .cse3 .cse5 .cse9 .cse1))) [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,169 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L902 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,170 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2022-07-22 11:22:29,171 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse6 (<= 15 ~a8~0)) (.cse8 (<= 14 ~a8~0)) (.cse0 (<= ~a21~0 0)) (.cse4 (= ~a16~0 6)) (.cse7 (= ~a17~0 1)) (.cse2 (= ~a20~0 1)) (.cse3 (<= ~a20~0 0)) (.cse5 (= ~a21~0 1)) (.cse9 (<= ~a16~0 5)) (.cse1 (<= ~a16~0 4))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6) (and .cse5 .cse2 .cse6) (and .cse0 .cse7 .cse2) (and .cse3 .cse0 .cse7 .cse1) (and .cse3 .cse8 .cse5 .cse9) (and .cse8 .cse5 .cse9 .cse2) (and .cse4 .cse0 .cse2) (and .cse5 .cse1 .cse2) (and (= ~a12~0 8) .cse4 .cse5 .cse7 .cse2) (and .cse3 .cse5 .cse9 .cse1))) [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,172 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 492) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2022-07-22 11:22:29,173 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2022-07-22 11:22:29,176 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:29,177 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 11:22:29,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 11:22:29 BoogieIcfgContainer [2022-07-22 11:22:29,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 11:22:29,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 11:22:29,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 11:22:29,190 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 11:22:29,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:22:20" (3/4) ... [2022-07-22 11:22:29,192 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 11:22:29,204 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-22 11:22:29,205 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-22 11:22:29,206 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 11:22:29,207 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 11:22:29,297 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 11:22:29,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 11:22:29,298 INFO L158 Benchmark]: Toolchain (without parser) took 10151.69ms. Allocated memory was 123.7MB in the beginning and 293.6MB in the end (delta: 169.9MB). Free memory was 97.8MB in the beginning and 127.3MB in the end (delta: -29.5MB). Peak memory consumption was 140.8MB. Max. memory is 16.1GB. [2022-07-22 11:22:29,298 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 11:22:29,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.28ms. Allocated memory is still 123.7MB. Free memory was 97.5MB in the beginning and 80.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-22 11:22:29,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.33ms. Allocated memory is still 123.7MB. Free memory was 80.7MB in the beginning and 75.0MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 11:22:29,298 INFO L158 Benchmark]: Boogie Preprocessor took 66.00ms. Allocated memory is still 123.7MB. Free memory was 75.0MB in the beginning and 70.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 11:22:29,299 INFO L158 Benchmark]: RCFGBuilder took 798.91ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 70.8MB in the beginning and 79.2MB in the end (delta: -8.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2022-07-22 11:22:29,299 INFO L158 Benchmark]: TraceAbstraction took 8651.84ms. Allocated memory was 151.0MB in the beginning and 293.6MB in the end (delta: 142.6MB). Free memory was 78.5MB in the beginning and 137.8MB in the end (delta: -59.3MB). Peak memory consumption was 83.0MB. Max. memory is 16.1GB. [2022-07-22 11:22:29,299 INFO L158 Benchmark]: Witness Printer took 107.62ms. Allocated memory is still 293.6MB. Free memory was 137.8MB in the beginning and 127.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 11:22:29,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.28ms. Allocated memory is still 123.7MB. Free memory was 97.5MB in the beginning and 80.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.33ms. Allocated memory is still 123.7MB. Free memory was 80.7MB in the beginning and 75.0MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.00ms. Allocated memory is still 123.7MB. Free memory was 75.0MB in the beginning and 70.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 798.91ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 70.8MB in the beginning and 79.2MB in the end (delta: -8.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8651.84ms. Allocated memory was 151.0MB in the beginning and 293.6MB in the end (delta: 142.6MB). Free memory was 78.5MB in the beginning and 137.8MB in the end (delta: -59.3MB). Peak memory consumption was 83.0MB. Max. memory is 16.1GB. * Witness Printer took 107.62ms. Allocated memory is still 293.6MB. Free memory was 137.8MB in the beginning and 127.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 492]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1766 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1766 mSDsluCounter, 1107 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 716 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4841 IncrementalHoareTripleChecker+Invalid, 5557 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 716 mSolverCounterUnsat, 1024 mSDtfsCounter, 4841 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 943 GetRequests, 914 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2100occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1441 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 265 HoareAnnotationTreeSize, 3 FomulaSimplifications, 300 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1950 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 3003 NumberOfCodeBlocks, 3003 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2986 ConstructedInterpolants, 0 QuantifiedInterpolants, 17389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1663 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 1632/2112 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((((a21 <= 0 && a16 <= 4) && a20 == 1) || (((a20 <= 0 && a16 == 6) && a21 == 1) && 15 <= a8)) || ((a21 == 1 && a20 == 1) && 15 <= a8)) || ((a21 <= 0 && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a21 <= 0) && a17 == 1) && a16 <= 4)) || (((a20 <= 0 && 14 <= a8) && a21 == 1) && a16 <= 5)) || (((14 <= a8 && a21 == 1) && a16 <= 5) && a20 == 1)) || ((a16 == 6 && a21 <= 0) && a20 == 1)) || ((a21 == 1 && a16 <= 4) && a20 == 1)) || ((((a12 == 8 && a16 == 6) && a21 == 1) && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a21 == 1) && a16 <= 5) && a16 <= 4) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((a21 <= 0 && a16 <= 4) && a20 == 1) || (((a20 <= 0 && a16 == 6) && a21 == 1) && 15 <= a8)) || ((a21 == 1 && a20 == 1) && 15 <= a8)) || ((a21 <= 0 && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a21 <= 0) && a17 == 1) && a16 <= 4)) || (((a20 <= 0 && 14 <= a8) && a21 == 1) && a16 <= 5)) || (((14 <= a8 && a21 == 1) && a16 <= 5) && a20 == 1)) || ((a16 == 6 && a21 <= 0) && a20 == 1)) || ((a21 == 1 && a16 <= 4) && a20 == 1)) || ((((a12 == 8 && a16 == 6) && a21 == 1) && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a21 == 1) && a16 <= 5) && a16 <= 4) RESULT: Ultimate proved your program to be correct! [2022-07-22 11:22:29,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE