./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label02.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 c0f41b7d074691792fd10e7dba36f11652ac022c2313237070654cd8c5fa3312 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 03:24:24,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 03:24:24,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 03:24:24,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 03:24:24,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 03:24:24,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 03:24:24,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 03:24:24,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 03:24:24,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 03:24:24,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 03:24:24,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 03:24:24,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 03:24:24,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 03:24:24,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 03:24:24,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 03:24:24,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 03:24:24,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 03:24:24,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 03:24:24,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 03:24:24,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 03:24:24,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 03:24:24,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 03:24:24,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 03:24:24,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 03:24:24,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 03:24:24,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 03:24:24,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 03:24:24,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 03:24:24,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 03:24:24,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 03:24:24,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 03:24:24,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 03:24:24,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 03:24:24,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 03:24:24,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 03:24:24,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 03:24:24,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 03:24:24,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 03:24:24,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 03:24:24,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 03:24:24,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 03:24:24,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 03:24:24,453 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 03:24:24,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 03:24:24,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 03:24:24,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 03:24:24,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 03:24:24,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 03:24:24,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 03:24:24,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 03:24:24,459 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 03:24:24,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 03:24:24,460 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 03:24:24,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 03:24:24,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 03:24:24,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 03:24:24,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 03:24:24,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 03:24:24,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 03:24:24,461 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 03:24:24,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 03:24:24,462 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 03:24:24,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 03:24:24,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 03:24:24,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 03:24:24,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 03:24:24,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:24:24,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 03:24:24,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 03:24:24,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 03:24:24,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 03:24:24,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 03:24:24,464 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 03:24:24,464 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 03:24:24,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 03:24:24,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 03:24:24,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0f41b7d074691792fd10e7dba36f11652ac022c2313237070654cd8c5fa3312 [2021-12-17 03:24:24,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 03:24:24,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 03:24:24,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 03:24:24,738 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 03:24:24,738 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 03:24:24,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label02.c [2021-12-17 03:24:24,817 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25549fe67/196b41d8182048feb611b3eaf5a5d9c6/FLAGdf33ab43d [2021-12-17 03:24:25,283 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 03:24:25,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label02.c [2021-12-17 03:24:25,318 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25549fe67/196b41d8182048feb611b3eaf5a5d9c6/FLAGdf33ab43d [2021-12-17 03:24:25,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25549fe67/196b41d8182048feb611b3eaf5a5d9c6 [2021-12-17 03:24:25,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 03:24:25,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 03:24:25,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 03:24:25,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 03:24:25,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 03:24:25,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:24:25" (1/1) ... [2021-12-17 03:24:25,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17643e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:25, skipping insertion in model container [2021-12-17 03:24:25,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:24:25" (1/1) ... [2021-12-17 03:24:25,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 03:24:25,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 03:24:26,199 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_label02.c[16747,16760] [2021-12-17 03:24:26,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:24:26,246 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 03:24:26,290 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_label02.c[16747,16760] [2021-12-17 03:24:26,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 03:24:26,313 INFO L208 MainTranslator]: Completed translation [2021-12-17 03:24:26,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26 WrapperNode [2021-12-17 03:24:26,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 03:24:26,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 03:24:26,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 03:24:26,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 03:24:26,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26" (1/1) ... [2021-12-17 03:24:26,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26" (1/1) ... [2021-12-17 03:24:26,402 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2021-12-17 03:24:26,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 03:24:26,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 03:24:26,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 03:24:26,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 03:24:26,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26" (1/1) ... [2021-12-17 03:24:26,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26" (1/1) ... [2021-12-17 03:24:26,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26" (1/1) ... [2021-12-17 03:24:26,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26" (1/1) ... [2021-12-17 03:24:26,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26" (1/1) ... [2021-12-17 03:24:26,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26" (1/1) ... [2021-12-17 03:24:26,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26" (1/1) ... [2021-12-17 03:24:26,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 03:24:26,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 03:24:26,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 03:24:26,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 03:24:26,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26" (1/1) ... [2021-12-17 03:24:26,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 03:24:26,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:24:26,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 03:24:26,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 03:24:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 03:24:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 03:24:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 03:24:26,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 03:24:26,586 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 03:24:26,587 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 03:24:27,321 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 03:24:27,331 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 03:24:27,332 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 03:24:27,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:24:27 BoogieIcfgContainer [2021-12-17 03:24:27,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 03:24:27,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 03:24:27,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 03:24:27,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 03:24:27,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:24:25" (1/3) ... [2021-12-17 03:24:27,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdf34d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:24:27, skipping insertion in model container [2021-12-17 03:24:27,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:24:26" (2/3) ... [2021-12-17 03:24:27,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdf34d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:24:27, skipping insertion in model container [2021-12-17 03:24:27,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:24:27" (3/3) ... [2021-12-17 03:24:27,345 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label02.c [2021-12-17 03:24:27,350 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 03:24:27,350 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 03:24:27,400 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 03:24:27,405 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 03:24:27,405 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 03:24:27,425 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) [2021-12-17 03:24:27,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-17 03:24:27,438 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:27,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:24:27,439 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:27,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash -776841673, now seen corresponding path program 1 times [2021-12-17 03:24:27,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:27,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280030776] [2021-12-17 03:24:27,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:27,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:27,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:24:27,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:27,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280030776] [2021-12-17 03:24:27,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280030776] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:27,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:24:27,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:24:27,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867540233] [2021-12-17 03:24:27,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:27,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:24:27,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:27,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:24:27,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:27,900 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 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:28,558 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-12-17 03:24:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:24:28,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 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 90 [2021-12-17 03:24:28,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:28,584 INFO L225 Difference]: With dead ends: 528 [2021-12-17 03:24:28,584 INFO L226 Difference]: Without dead ends: 266 [2021-12-17 03:24:28,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:28,591 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 98 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:28,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 51 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 03:24:28,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-12-17 03:24:28,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-12-17 03:24:28,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4566037735849056) internal successors, (386), 265 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:28,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 386 transitions. [2021-12-17 03:24:28,639 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 386 transitions. Word has length 90 [2021-12-17 03:24:28,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:28,640 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 386 transitions. [2021-12-17 03:24:28,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:28,641 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 386 transitions. [2021-12-17 03:24:28,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-17 03:24:28,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:28,644 INFO L514 BasicCegarLoop]: 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] [2021-12-17 03:24:28,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 03:24:28,645 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:28,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:28,646 INFO L85 PathProgramCache]: Analyzing trace with hash 904352266, now seen corresponding path program 1 times [2021-12-17 03:24:28,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:28,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768446089] [2021-12-17 03:24:28,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:28,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:28,692 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:24:28,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:28,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768446089] [2021-12-17 03:24:28,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768446089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:28,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:24:28,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:24:28,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994617743] [2021-12-17 03:24:28,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:28,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:24:28,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:28,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:24:28,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:28,696 INFO L87 Difference]: Start difference. First operand 266 states and 386 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:29,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:29,069 INFO L93 Difference]: Finished difference Result 661 states and 955 transitions. [2021-12-17 03:24:29,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:24:29,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 96 [2021-12-17 03:24:29,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:29,072 INFO L225 Difference]: With dead ends: 661 [2021-12-17 03:24:29,072 INFO L226 Difference]: Without dead ends: 397 [2021-12-17 03:24:29,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:29,075 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 145 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:29,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 17 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 03:24:29,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-12-17 03:24:29,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2021-12-17 03:24:29,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 1.4116161616161615) internal successors, (559), 396 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 559 transitions. [2021-12-17 03:24:29,094 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 559 transitions. Word has length 96 [2021-12-17 03:24:29,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:29,094 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 559 transitions. [2021-12-17 03:24:29,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:29,095 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 559 transitions. [2021-12-17 03:24:29,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-17 03:24:29,098 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:29,098 INFO L514 BasicCegarLoop]: 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] [2021-12-17 03:24:29,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 03:24:29,099 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:29,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:29,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1983827210, now seen corresponding path program 1 times [2021-12-17 03:24:29,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:29,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422167021] [2021-12-17 03:24:29,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:29,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:29,189 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-17 03:24:29,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:29,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422167021] [2021-12-17 03:24:29,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422167021] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:29,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:24:29,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:24:29,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230571540] [2021-12-17 03:24:29,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:29,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:24:29,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:29,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:24:29,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:29,192 INFO L87 Difference]: Start difference. First operand 397 states and 559 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:29,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:29,545 INFO L93 Difference]: Finished difference Result 1185 states and 1672 transitions. [2021-12-17 03:24:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:24:29,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 97 [2021-12-17 03:24:29,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:29,549 INFO L225 Difference]: With dead ends: 1185 [2021-12-17 03:24:29,549 INFO L226 Difference]: Without dead ends: 790 [2021-12-17 03:24:29,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:29,551 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 54 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:29,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 37 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:24:29,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2021-12-17 03:24:29,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 659. [2021-12-17 03:24:29,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.384498480243161) internal successors, (911), 658 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:29,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 911 transitions. [2021-12-17 03:24:29,573 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 911 transitions. Word has length 97 [2021-12-17 03:24:29,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:29,574 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 911 transitions. [2021-12-17 03:24:29,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:29,574 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 911 transitions. [2021-12-17 03:24:29,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-17 03:24:29,578 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:29,579 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:24:29,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 03:24:29,579 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:29,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:29,580 INFO L85 PathProgramCache]: Analyzing trace with hash -963864069, now seen corresponding path program 1 times [2021-12-17 03:24:29,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:29,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603702819] [2021-12-17 03:24:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:29,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:29,627 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:24:29,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:29,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603702819] [2021-12-17 03:24:29,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603702819] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:29,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:24:29,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:24:29,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532867216] [2021-12-17 03:24:29,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:29,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:24:29,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:29,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:24:29,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:29,630 INFO L87 Difference]: Start difference. First operand 659 states and 911 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:29,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:29,970 INFO L93 Difference]: Finished difference Result 1447 states and 1993 transitions. [2021-12-17 03:24:29,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:24:29,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 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 103 [2021-12-17 03:24:29,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:29,975 INFO L225 Difference]: With dead ends: 1447 [2021-12-17 03:24:29,975 INFO L226 Difference]: Without dead ends: 790 [2021-12-17 03:24:29,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:29,977 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 129 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:29,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 61 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:24:29,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2021-12-17 03:24:29,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2021-12-17 03:24:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.3130544993662865) internal successors, (1036), 789 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1036 transitions. [2021-12-17 03:24:30,002 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1036 transitions. Word has length 103 [2021-12-17 03:24:30,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:30,002 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 1036 transitions. [2021-12-17 03:24:30,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:30,003 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1036 transitions. [2021-12-17 03:24:30,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-17 03:24:30,006 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:30,006 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 03:24:30,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 03:24:30,007 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:30,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:30,007 INFO L85 PathProgramCache]: Analyzing trace with hash -2095190628, now seen corresponding path program 1 times [2021-12-17 03:24:30,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:30,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540735089] [2021-12-17 03:24:30,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:30,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:30,049 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-17 03:24:30,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:30,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540735089] [2021-12-17 03:24:30,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540735089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:30,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:24:30,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:24:30,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406288438] [2021-12-17 03:24:30,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:30,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:24:30,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:30,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:24:30,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:30,052 INFO L87 Difference]: Start difference. First operand 790 states and 1036 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:30,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:30,396 INFO L93 Difference]: Finished difference Result 1971 states and 2547 transitions. [2021-12-17 03:24:30,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:24:30,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-17 03:24:30,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:30,400 INFO L225 Difference]: With dead ends: 1971 [2021-12-17 03:24:30,401 INFO L226 Difference]: Without dead ends: 1183 [2021-12-17 03:24:30,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:30,403 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 121 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:30,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 74 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:24:30,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-12-17 03:24:30,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1052. [2021-12-17 03:24:30,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 1.2635585156993339) internal successors, (1328), 1051 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:30,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1328 transitions. [2021-12-17 03:24:30,430 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1328 transitions. Word has length 118 [2021-12-17 03:24:30,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:30,431 INFO L470 AbstractCegarLoop]: Abstraction has 1052 states and 1328 transitions. [2021-12-17 03:24:30,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:30,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1328 transitions. [2021-12-17 03:24:30,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-17 03:24:30,437 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:30,438 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:24:30,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 03:24:30,438 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:30,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:30,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1811589588, now seen corresponding path program 1 times [2021-12-17 03:24:30,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:30,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309512192] [2021-12-17 03:24:30,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:30,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:30,514 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-17 03:24:30,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:30,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309512192] [2021-12-17 03:24:30,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309512192] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:30,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:24:30,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:24:30,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20117534] [2021-12-17 03:24:30,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:30,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 03:24:30,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:30,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 03:24:30,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:24:30,517 INFO L87 Difference]: Start difference. First operand 1052 states and 1328 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:31,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:31,056 INFO L93 Difference]: Finished difference Result 2495 states and 3095 transitions. [2021-12-17 03:24:31,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 03:24:31,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 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 122 [2021-12-17 03:24:31,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:31,061 INFO L225 Difference]: With dead ends: 2495 [2021-12-17 03:24:31,061 INFO L226 Difference]: Without dead ends: 1445 [2021-12-17 03:24:31,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 03:24:31,065 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 386 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:31,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 71 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 03:24:31,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-12-17 03:24:31,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1314. [2021-12-17 03:24:31,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 1.2292460015232292) internal successors, (1614), 1313 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:31,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1614 transitions. [2021-12-17 03:24:31,104 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1614 transitions. Word has length 122 [2021-12-17 03:24:31,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:31,104 INFO L470 AbstractCegarLoop]: Abstraction has 1314 states and 1614 transitions. [2021-12-17 03:24:31,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:31,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1614 transitions. [2021-12-17 03:24:31,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-17 03:24:31,107 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:31,107 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:24:31,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 03:24:31,108 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:31,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:31,109 INFO L85 PathProgramCache]: Analyzing trace with hash 650221427, now seen corresponding path program 1 times [2021-12-17 03:24:31,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:31,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394243021] [2021-12-17 03:24:31,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:31,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-17 03:24:31,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:31,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394243021] [2021-12-17 03:24:31,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394243021] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:31,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:24:31,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 03:24:31,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886801606] [2021-12-17 03:24:31,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:31,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:24:31,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:31,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:24:31,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:31,200 INFO L87 Difference]: Start difference. First operand 1314 states and 1614 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:31,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:31,567 INFO L93 Difference]: Finished difference Result 3019 states and 3782 transitions. [2021-12-17 03:24:31,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:24:31,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 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 140 [2021-12-17 03:24:31,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:31,574 INFO L225 Difference]: With dead ends: 3019 [2021-12-17 03:24:31,574 INFO L226 Difference]: Without dead ends: 1707 [2021-12-17 03:24:31,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:31,577 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:31,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 60 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:24:31,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-12-17 03:24:31,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1576. [2021-12-17 03:24:31,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.2107936507936508) internal successors, (1907), 1575 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:31,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1907 transitions. [2021-12-17 03:24:31,611 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1907 transitions. Word has length 140 [2021-12-17 03:24:31,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:31,612 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 1907 transitions. [2021-12-17 03:24:31,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:31,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1907 transitions. [2021-12-17 03:24:31,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-17 03:24:31,616 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:31,616 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:24:31,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 03:24:31,617 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:31,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:31,618 INFO L85 PathProgramCache]: Analyzing trace with hash 5467784, now seen corresponding path program 1 times [2021-12-17 03:24:31,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:31,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693978973] [2021-12-17 03:24:31,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:31,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:31,726 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 03:24:31,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:31,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693978973] [2021-12-17 03:24:31,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693978973] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:31,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:24:31,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:24:31,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956392058] [2021-12-17 03:24:31,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:31,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:24:31,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:31,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:24:31,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:31,729 INFO L87 Difference]: Start difference. First operand 1576 states and 1907 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:32,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:32,052 INFO L93 Difference]: Finished difference Result 3805 states and 4648 transitions. [2021-12-17 03:24:32,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:24:32,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2021-12-17 03:24:32,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:32,060 INFO L225 Difference]: With dead ends: 3805 [2021-12-17 03:24:32,060 INFO L226 Difference]: Without dead ends: 2231 [2021-12-17 03:24:32,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:32,063 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 66 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:32,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 31 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:24:32,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-12-17 03:24:32,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1969. [2021-12-17 03:24:32,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.223069105691057) internal successors, (2407), 1968 states have internal predecessors, (2407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:32,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2407 transitions. [2021-12-17 03:24:32,098 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2407 transitions. Word has length 149 [2021-12-17 03:24:32,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:32,099 INFO L470 AbstractCegarLoop]: Abstraction has 1969 states and 2407 transitions. [2021-12-17 03:24:32,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:32,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2407 transitions. [2021-12-17 03:24:32,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-17 03:24:32,113 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:32,113 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:24:32,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 03:24:32,115 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:32,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:32,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1100002021, now seen corresponding path program 1 times [2021-12-17 03:24:32,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:32,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859500393] [2021-12-17 03:24:32,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:32,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-17 03:24:32,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:32,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859500393] [2021-12-17 03:24:32,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859500393] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:32,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:24:32,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:24:32,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444062959] [2021-12-17 03:24:32,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:32,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:24:32,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:32,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:24:32,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:32,205 INFO L87 Difference]: Start difference. First operand 1969 states and 2407 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:32,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:32,541 INFO L93 Difference]: Finished difference Result 4198 states and 5092 transitions. [2021-12-17 03:24:32,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:24:32,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 172 [2021-12-17 03:24:32,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:32,549 INFO L225 Difference]: With dead ends: 4198 [2021-12-17 03:24:32,549 INFO L226 Difference]: Without dead ends: 2231 [2021-12-17 03:24:32,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:32,554 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 93 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:32,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 49 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:24:32,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-12-17 03:24:32,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1969. [2021-12-17 03:24:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.2169715447154472) internal successors, (2395), 1968 states have internal predecessors, (2395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:32,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2395 transitions. [2021-12-17 03:24:32,591 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2395 transitions. Word has length 172 [2021-12-17 03:24:32,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:32,592 INFO L470 AbstractCegarLoop]: Abstraction has 1969 states and 2395 transitions. [2021-12-17 03:24:32,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:32,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2395 transitions. [2021-12-17 03:24:32,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-12-17 03:24:32,597 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:32,597 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 03:24:32,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 03:24:32,598 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:32,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:32,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2052679090, now seen corresponding path program 1 times [2021-12-17 03:24:32,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:32,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025754930] [2021-12-17 03:24:32,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:32,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 129 proven. 142 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-17 03:24:32,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:32,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025754930] [2021-12-17 03:24:32,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025754930] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:24:32,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830560546] [2021-12-17 03:24:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:32,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:24:32,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:24:32,791 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 03:24:32,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 03:24:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:32,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:24:32,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:24:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-12-17 03:24:33,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:24:33,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830560546] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:33,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:24:33,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-17 03:24:33,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455951085] [2021-12-17 03:24:33,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:33,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:24:33,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:33,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:24:33,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-17 03:24:33,392 INFO L87 Difference]: Start difference. First operand 1969 states and 2395 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:33,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:33,755 INFO L93 Difference]: Finished difference Result 4722 states and 5761 transitions. [2021-12-17 03:24:33,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:24:33,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 237 [2021-12-17 03:24:33,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:33,764 INFO L225 Difference]: With dead ends: 4722 [2021-12-17 03:24:33,764 INFO L226 Difference]: Without dead ends: 2755 [2021-12-17 03:24:33,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-17 03:24:33,767 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 56 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:33,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 174 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:24:33,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2021-12-17 03:24:33,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2755. [2021-12-17 03:24:33,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 1.1855482933914308) internal successors, (3265), 2754 states have internal predecessors, (3265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:33,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3265 transitions. [2021-12-17 03:24:33,818 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3265 transitions. Word has length 237 [2021-12-17 03:24:33,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:33,818 INFO L470 AbstractCegarLoop]: Abstraction has 2755 states and 3265 transitions. [2021-12-17 03:24:33,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:33,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3265 transitions. [2021-12-17 03:24:33,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-17 03:24:33,823 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:33,824 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 03:24:33,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 03:24:34,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-17 03:24:34,052 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:34,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:34,052 INFO L85 PathProgramCache]: Analyzing trace with hash 471134404, now seen corresponding path program 1 times [2021-12-17 03:24:34,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:34,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328601439] [2021-12-17 03:24:34,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:34,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:34,169 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 112 proven. 146 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-17 03:24:34,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:34,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328601439] [2021-12-17 03:24:34,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328601439] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 03:24:34,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382833214] [2021-12-17 03:24:34,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:34,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 03:24:34,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 03:24:34,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 03:24:34,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 03:24:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:34,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 03:24:34,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 03:24:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-12-17 03:24:34,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 03:24:34,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382833214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:34,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 03:24:34,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-17 03:24:34,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082073642] [2021-12-17 03:24:34,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:34,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:24:34,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:34,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:24:34,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:24:34,693 INFO L87 Difference]: Start difference. First operand 2755 states and 3265 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:35,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:35,049 INFO L93 Difference]: Finished difference Result 6032 states and 7215 transitions. [2021-12-17 03:24:35,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:24:35,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 241 [2021-12-17 03:24:35,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:35,062 INFO L225 Difference]: With dead ends: 6032 [2021-12-17 03:24:35,063 INFO L226 Difference]: Without dead ends: 3279 [2021-12-17 03:24:35,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 03:24:35,067 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 49 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:35,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 199 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:24:35,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2021-12-17 03:24:35,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3148. [2021-12-17 03:24:35,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.1776294884016523) internal successors, (3706), 3147 states have internal predecessors, (3706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:35,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3706 transitions. [2021-12-17 03:24:35,128 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3706 transitions. Word has length 241 [2021-12-17 03:24:35,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:35,129 INFO L470 AbstractCegarLoop]: Abstraction has 3148 states and 3706 transitions. [2021-12-17 03:24:35,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:35,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3706 transitions. [2021-12-17 03:24:35,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-12-17 03:24:35,135 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 03:24:35,135 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-17 03:24:35,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 03:24:35,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-17 03:24:35,351 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 03:24:35,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 03:24:35,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1324303861, now seen corresponding path program 1 times [2021-12-17 03:24:35,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 03:24:35,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651036817] [2021-12-17 03:24:35,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 03:24:35,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 03:24:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 03:24:35,435 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2021-12-17 03:24:35,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 03:24:35,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651036817] [2021-12-17 03:24:35,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651036817] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 03:24:35,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 03:24:35,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 03:24:35,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616027354] [2021-12-17 03:24:35,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 03:24:35,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 03:24:35,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 03:24:35,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 03:24:35,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:35,438 INFO L87 Difference]: Start difference. First operand 3148 states and 3706 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:35,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 03:24:35,742 INFO L93 Difference]: Finished difference Result 5113 states and 5941 transitions. [2021-12-17 03:24:35,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 03:24:35,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 271 [2021-12-17 03:24:35,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 03:24:35,744 INFO L225 Difference]: With dead ends: 5113 [2021-12-17 03:24:35,744 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 03:24:35,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 03:24:35,749 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 161 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 03:24:35,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 28 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 03:24:35,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 03:24:35,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 03:24:35,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:35,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 03:24:35,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 271 [2021-12-17 03:24:35,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 03:24:35,750 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 03:24:35,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 03:24:35,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 03:24:35,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 03:24:35,753 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 03:24:35,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 03:24:35,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 03:24:36,014 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-12-17 03:24:36,015 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-12-17 03:24:36,015 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-12-17 03:24:36,015 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-12-17 03:24:36,015 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-12-17 03:24:36,015 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-12-17 03:24:36,015 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-12-17 03:24:36,016 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-12-17 03:24:36,016 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,016 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,016 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,016 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,016 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-12-17 03:24:36,016 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,017 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,017 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-12-17 03:24:36,017 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-12-17 03:24:36,017 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-12-17 03:24:36,018 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-12-17 03:24:36,018 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-12-17 03:24:36,018 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-12-17 03:24:36,018 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-12-17 03:24:36,018 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-12-17 03:24:36,018 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-12-17 03:24:36,019 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-12-17 03:24:36,019 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-12-17 03:24:36,020 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-12-17 03:24:36,020 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,020 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,020 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,020 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,020 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,021 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-12-17 03:24:36,021 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,021 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-12-17 03:24:36,021 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-12-17 03:24:36,021 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-12-17 03:24:36,021 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-12-17 03:24:36,021 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-12-17 03:24:36,021 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-12-17 03:24:36,022 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-12-17 03:24:36,022 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-12-17 03:24:36,022 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-12-17 03:24:36,022 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-12-17 03:24:36,022 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-12-17 03:24:36,023 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-12-17 03:24:36,023 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-12-17 03:24:36,023 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-12-17 03:24:36,023 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,023 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,023 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,023 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,024 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,024 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,024 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-12-17 03:24:36,024 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-12-17 03:24:36,024 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-12-17 03:24:36,024 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-12-17 03:24:36,024 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-12-17 03:24:36,024 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-12-17 03:24:36,025 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-12-17 03:24:36,025 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-12-17 03:24:36,025 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-12-17 03:24:36,025 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-12-17 03:24:36,025 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-12-17 03:24:36,025 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-12-17 03:24:36,025 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,026 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,026 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,026 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,026 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,026 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,027 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-12-17 03:24:36,027 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-12-17 03:24:36,027 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-12-17 03:24:36,027 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-12-17 03:24:36,027 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-12-17 03:24:36,027 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-12-17 03:24:36,027 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-12-17 03:24:36,027 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-12-17 03:24:36,028 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-12-17 03:24:36,028 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-12-17 03:24:36,028 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,028 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,028 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,028 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,028 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,028 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,029 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-12-17 03:24:36,029 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-12-17 03:24:36,030 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-12-17 03:24:36,030 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-12-17 03:24:36,030 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-12-17 03:24:36,030 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-12-17 03:24:36,030 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-12-17 03:24:36,031 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-12-17 03:24:36,031 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-12-17 03:24:36,031 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-12-17 03:24:36,031 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-12-17 03:24:36,031 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-12-17 03:24:36,031 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-12-17 03:24:36,031 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-12-17 03:24:36,031 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-12-17 03:24:36,032 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,032 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,032 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,032 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,032 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,032 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 03:24:36,032 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-12-17 03:24:36,032 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-12-17 03:24:36,032 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-12-17 03:24:36,033 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-12-17 03:24:36,033 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-12-17 03:24:36,033 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-12-17 03:24:36,033 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-12-17 03:24:36,033 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-12-17 03:24:36,033 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-12-17 03:24:36,034 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse1 (= ~a20~0 1)) (.cse2 (not (= 1 ~a7~0))) (.cse0 (= ~a21~0 1)) (.cse3 (<= ~a20~0 0))) (or (and .cse0 .cse1 (= ~a17~0 1)) (and .cse0 .cse1 (<= 5 ~a16~0)) (<= ~a21~0 0) (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse0 .cse3 (<= ~a16~0 5)))) [2021-12-17 03:24:36,034 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,034 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,034 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,034 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,034 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,034 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-12-17 03:24:36,034 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-12-17 03:24:36,035 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-12-17 03:24:36,035 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-12-17 03:24:36,035 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-12-17 03:24:36,035 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-12-17 03:24:36,035 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-12-17 03:24:36,035 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-12-17 03:24:36,035 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-12-17 03:24:36,035 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-12-17 03:24:36,036 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-12-17 03:24:36,036 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-12-17 03:24:36,036 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 03:24:36,036 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-12-17 03:24:36,038 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-12-17 03:24:36,038 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,038 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,038 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,038 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,038 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,039 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-12-17 03:24:36,039 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-12-17 03:24:36,039 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-12-17 03:24:36,039 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-12-17 03:24:36,039 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-12-17 03:24:36,039 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-12-17 03:24:36,039 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-12-17 03:24:36,039 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-12-17 03:24:36,040 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-12-17 03:24:36,040 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 03:24:36,040 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,040 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,040 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,040 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,040 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-12-17 03:24:36,040 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,041 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-12-17 03:24:36,041 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-12-17 03:24:36,041 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-12-17 03:24:36,041 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-12-17 03:24:36,041 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-12-17 03:24:36,041 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-12-17 03:24:36,041 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-12-17 03:24:36,041 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-12-17 03:24:36,042 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-12-17 03:24:36,042 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-12-17 03:24:36,042 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-12-17 03:24:36,042 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-12-17 03:24:36,042 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-12-17 03:24:36,042 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,043 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse1 (= ~a20~0 1)) (.cse2 (not (= 1 ~a7~0))) (.cse0 (= ~a21~0 1)) (.cse3 (<= ~a20~0 0))) (or (and .cse0 .cse1 (= ~a17~0 1)) (and .cse0 .cse1 (<= 5 ~a16~0)) (<= ~a21~0 0) (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse0 .cse3 (<= ~a16~0 5)))) [2021-12-17 03:24:36,043 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,044 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,044 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,044 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,044 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-12-17 03:24:36,044 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 03:24:36,044 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 456) no Hoare annotation was computed. [2021-12-17 03:24:36,044 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-12-17 03:24:36,044 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-12-17 03:24:36,045 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-12-17 03:24:36,045 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-12-17 03:24:36,045 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-12-17 03:24:36,045 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-12-17 03:24:36,045 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-12-17 03:24:36,045 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,045 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,045 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,046 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,046 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-12-17 03:24:36,046 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-12-17 03:24:36,046 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-12-17 03:24:36,046 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-12-17 03:24:36,046 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-12-17 03:24:36,049 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 03:24:36,052 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 03:24:36,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:24:36 BoogieIcfgContainer [2021-12-17 03:24:36,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 03:24:36,079 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 03:24:36,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 03:24:36,079 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 03:24:36,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:24:27" (3/4) ... [2021-12-17 03:24:36,082 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 03:24:36,105 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 03:24:36,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 03:24:36,107 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 03:24:36,107 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 03:24:36,202 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 03:24:36,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 03:24:36,203 INFO L158 Benchmark]: Toolchain (without parser) took 10384.42ms. Allocated memory was 109.1MB in the beginning and 209.7MB in the end (delta: 100.7MB). Free memory was 74.8MB in the beginning and 91.0MB in the end (delta: -16.1MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2021-12-17 03:24:36,203 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 32.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 03:24:36,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.86ms. Allocated memory is still 109.1MB. Free memory was 74.6MB in the beginning and 69.4MB in the end (delta: 5.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 03:24:36,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.08ms. Allocated memory is still 109.1MB. Free memory was 69.4MB in the beginning and 63.6MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 03:24:36,204 INFO L158 Benchmark]: Boogie Preprocessor took 65.98ms. Allocated memory is still 109.1MB. Free memory was 63.1MB in the beginning and 58.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 03:24:36,204 INFO L158 Benchmark]: RCFGBuilder took 864.13ms. Allocated memory is still 109.1MB. Free memory was 58.9MB in the beginning and 49.9MB in the end (delta: 9.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-17 03:24:36,205 INFO L158 Benchmark]: TraceAbstraction took 8740.44ms. Allocated memory was 109.1MB in the beginning and 209.7MB in the end (delta: 100.7MB). Free memory was 49.3MB in the beginning and 105.6MB in the end (delta: -56.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2021-12-17 03:24:36,205 INFO L158 Benchmark]: Witness Printer took 123.40ms. Allocated memory is still 209.7MB. Free memory was 105.6MB in the beginning and 91.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 03:24:36,207 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 32.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.86ms. Allocated memory is still 109.1MB. Free memory was 74.6MB in the beginning and 69.4MB in the end (delta: 5.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.08ms. Allocated memory is still 109.1MB. Free memory was 69.4MB in the beginning and 63.6MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.98ms. Allocated memory is still 109.1MB. Free memory was 63.1MB in the beginning and 58.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 864.13ms. Allocated memory is still 109.1MB. Free memory was 58.9MB in the beginning and 49.9MB in the end (delta: 9.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8740.44ms. Allocated memory was 109.1MB in the beginning and 209.7MB in the end (delta: 100.7MB). Free memory was 49.3MB in the beginning and 105.6MB in the end (delta: -56.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 123.40ms. Allocated memory is still 209.7MB. Free memory was 105.6MB in the beginning and 91.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 456]: 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: 8.7s, OverallIterations: 12, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1464 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1464 mSDsluCounter, 852 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 734 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4213 IncrementalHoareTripleChecker+Invalid, 4947 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 734 mSolverCounterUnsat, 786 mSDtfsCounter, 4213 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 509 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3148occurred in iteration=11, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 1179 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 35 NumberOfFragments, 113 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1540 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2314 NumberOfCodeBlocks, 2314 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2300 ConstructedInterpolants, 0 QuantifiedInterpolants, 7064 SizeOfPredicates, 0 NumberOfNonLiveVariables, 935 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 1784/2072 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 == 1 && a20 == 1) && a17 == 1) || ((a21 == 1 && a20 == 1) && 5 <= a16)) || a21 <= 0) || ((a21 == 1 && a20 == 1) && !(1 == a7))) || ((a21 == 1 && a20 <= 0) && !(1 == a7))) || ((a21 == 1 && a20 <= 0) && a16 <= 5) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((a21 == 1 && a20 == 1) && a17 == 1) || ((a21 == 1 && a20 == 1) && 5 <= a16)) || a21 <= 0) || ((a21 == 1 && a20 == 1) && !(1 == a7))) || ((a21 == 1 && a20 <= 0) && !(1 == a7))) || ((a21 == 1 && a20 <= 0) && a16 <= 5) RESULT: Ultimate proved your program to be correct! [2021-12-17 03:24:36,254 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