./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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/openssl-simplified/s3_srvr_2.cil-1.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 dca428a91d61f16d984f5dd6898f66ec80371948e14839543a0c63f73de1fec4 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 11:44:14,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 11:44:14,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 11:44:14,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 11:44:14,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 11:44:14,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 11:44:14,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 11:44:14,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 11:44:14,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 11:44:14,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 11:44:14,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 11:44:14,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 11:44:14,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 11:44:14,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 11:44:14,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 11:44:14,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 11:44:14,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 11:44:14,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 11:44:14,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 11:44:14,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 11:44:14,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 11:44:14,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 11:44:14,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 11:44:14,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 11:44:14,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 11:44:14,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 11:44:14,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 11:44:14,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 11:44:14,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 11:44:14,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 11:44:14,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 11:44:14,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 11:44:14,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 11:44:14,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 11:44:14,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 11:44:14,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 11:44:14,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 11:44:14,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 11:44:14,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 11:44:14,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 11:44:14,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 11:44:14,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 11:44:14,454 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 11:44:14,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 11:44:14,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 11:44:14,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 11:44:14,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 11:44:14,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 11:44:14,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 11:44:14,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 11:44:14,459 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 11:44:14,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 11:44:14,460 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 11:44:14,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 11:44:14,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 11:44:14,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 11:44:14,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 11:44:14,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 11:44:14,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 11:44:14,461 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 11:44:14,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 11:44:14,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 11:44:14,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 11:44:14,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 11:44:14,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 11:44:14,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 11:44:14,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 11:44:14,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 11:44:14,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 11:44:14,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 11:44:14,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 11:44:14,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 11:44:14,463 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 11:44:14,463 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 11:44:14,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 11:44:14,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 11:44:14,464 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dca428a91d61f16d984f5dd6898f66ec80371948e14839543a0c63f73de1fec4 [2021-12-14 11:44:14,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 11:44:14,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 11:44:14,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 11:44:14,691 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 11:44:14,692 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 11:44:14,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-1.c [2021-12-14 11:44:14,741 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d6d1821/d44a79e345e94061856e0422b268e4ab/FLAGacfe8d768 [2021-12-14 11:44:15,133 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 11:44:15,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-1.c [2021-12-14 11:44:15,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d6d1821/d44a79e345e94061856e0422b268e4ab/FLAGacfe8d768 [2021-12-14 11:44:15,152 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d6d1821/d44a79e345e94061856e0422b268e4ab [2021-12-14 11:44:15,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 11:44:15,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 11:44:15,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 11:44:15,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 11:44:15,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 11:44:15,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f458cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15, skipping insertion in model container [2021-12-14 11:44:15,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 11:44:15,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 11:44:15,364 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/openssl-simplified/s3_srvr_2.cil-1.c[42877,42890] [2021-12-14 11:44:15,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 11:44:15,373 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 11:44:15,405 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/openssl-simplified/s3_srvr_2.cil-1.c[42877,42890] [2021-12-14 11:44:15,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 11:44:15,415 INFO L208 MainTranslator]: Completed translation [2021-12-14 11:44:15,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15 WrapperNode [2021-12-14 11:44:15,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 11:44:15,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 11:44:15,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 11:44:15,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 11:44:15,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,466 INFO L137 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 546 [2021-12-14 11:44:15,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 11:44:15,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 11:44:15,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 11:44:15,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 11:44:15,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 11:44:15,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 11:44:15,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 11:44:15,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 11:44:15,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15" (1/1) ... [2021-12-14 11:44:15,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 11:44:15,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:44:15,551 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) [2021-12-14 11:44:15,575 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 [2021-12-14 11:44:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 11:44:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 11:44:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 11:44:15,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 11:44:15,676 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 11:44:15,677 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 11:44:15,701 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:44:16,128 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-12-14 11:44:16,129 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-12-14 11:44:16,129 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 11:44:16,134 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 11:44:16,134 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 11:44:16,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:44:16 BoogieIcfgContainer [2021-12-14 11:44:16,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 11:44:16,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 11:44:16,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 11:44:16,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 11:44:16,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:44:15" (1/3) ... [2021-12-14 11:44:16,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76addc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:44:16, skipping insertion in model container [2021-12-14 11:44:16,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:44:15" (2/3) ... [2021-12-14 11:44:16,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76addc4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:44:16, skipping insertion in model container [2021-12-14 11:44:16,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:44:16" (3/3) ... [2021-12-14 11:44:16,141 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.cil-1.c [2021-12-14 11:44:16,145 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 11:44:16,145 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 11:44:16,187 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 11:44:16,192 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 [2021-12-14 11:44:16,192 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 11:44:16,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 139 states have (on average 1.7266187050359711) internal successors, (240), 140 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:16,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-14 11:44:16,213 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:16,214 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] [2021-12-14 11:44:16,214 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:16,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:16,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1632005994, now seen corresponding path program 1 times [2021-12-14 11:44:16,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:16,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878791795] [2021-12-14 11:44:16,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:16,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:16,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:44:16,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:16,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878791795] [2021-12-14 11:44:16,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878791795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:16,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:16,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:16,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336873352] [2021-12-14 11:44:16,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:16,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:16,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:16,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:16,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:16,470 INFO L87 Difference]: Start difference. First operand has 141 states, 139 states have (on average 1.7266187050359711) internal successors, (240), 140 states have internal predecessors, (240), 0 states have call successors, (0), 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 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:16,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:16,703 INFO L93 Difference]: Finished difference Result 328 states and 564 transitions. [2021-12-14 11:44:16,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:16,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2021-12-14 11:44:16,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:16,718 INFO L225 Difference]: With dead ends: 328 [2021-12-14 11:44:16,718 INFO L226 Difference]: Without dead ends: 175 [2021-12-14 11:44:16,721 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 [2021-12-14 11:44:16,724 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 170 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:16,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 190 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 11:44:16,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-12-14 11:44:16,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2021-12-14 11:44:16,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 169 states have (on average 1.6272189349112427) internal successors, (275), 169 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 275 transitions. [2021-12-14 11:44:16,778 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 275 transitions. Word has length 44 [2021-12-14 11:44:16,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:16,779 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 275 transitions. [2021-12-14 11:44:16,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:16,780 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 275 transitions. [2021-12-14 11:44:16,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-14 11:44:16,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:16,785 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] [2021-12-14 11:44:16,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 11:44:16,786 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:16,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:16,787 INFO L85 PathProgramCache]: Analyzing trace with hash -954576436, now seen corresponding path program 1 times [2021-12-14 11:44:16,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:16,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579525007] [2021-12-14 11:44:16,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:16,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:16,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:44:16,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:16,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579525007] [2021-12-14 11:44:16,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579525007] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:16,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:16,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:16,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473298429] [2021-12-14 11:44:16,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:16,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:16,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:16,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:16,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:16,889 INFO L87 Difference]: Start difference. First operand 170 states and 275 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:17,013 INFO L93 Difference]: Finished difference Result 380 states and 624 transitions. [2021-12-14 11:44:17,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:17,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2021-12-14 11:44:17,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:17,015 INFO L225 Difference]: With dead ends: 380 [2021-12-14 11:44:17,015 INFO L226 Difference]: Without dead ends: 216 [2021-12-14 11:44:17,016 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 [2021-12-14 11:44:17,017 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 129 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:17,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 142 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:17,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-12-14 11:44:17,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 211. [2021-12-14 11:44:17,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.6761904761904762) internal successors, (352), 210 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 352 transitions. [2021-12-14 11:44:17,025 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 352 transitions. Word has length 45 [2021-12-14 11:44:17,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:17,025 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 352 transitions. [2021-12-14 11:44:17,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,026 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 352 transitions. [2021-12-14 11:44:17,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-14 11:44:17,027 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:17,027 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:17,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 11:44:17,028 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:17,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:17,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2071968837, now seen corresponding path program 1 times [2021-12-14 11:44:17,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:17,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658210447] [2021-12-14 11:44:17,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:17,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:17,060 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:44:17,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:17,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658210447] [2021-12-14 11:44:17,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658210447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:17,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:17,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:17,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552754009] [2021-12-14 11:44:17,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:17,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:17,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:17,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:17,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:17,063 INFO L87 Difference]: Start difference. First operand 211 states and 352 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:17,167 INFO L93 Difference]: Finished difference Result 445 states and 750 transitions. [2021-12-14 11:44:17,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:17,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2021-12-14 11:44:17,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:17,168 INFO L225 Difference]: With dead ends: 445 [2021-12-14 11:44:17,168 INFO L226 Difference]: Without dead ends: 242 [2021-12-14 11:44:17,169 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 [2021-12-14 11:44:17,170 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 136 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:17,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 155 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:17,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-12-14 11:44:17,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-12-14 11:44:17,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 1.6929460580912863) internal successors, (408), 241 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 408 transitions. [2021-12-14 11:44:17,178 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 408 transitions. Word has length 72 [2021-12-14 11:44:17,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:17,179 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 408 transitions. [2021-12-14 11:44:17,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,179 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 408 transitions. [2021-12-14 11:44:17,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-14 11:44:17,180 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:17,180 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:17,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 11:44:17,181 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:17,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:17,181 INFO L85 PathProgramCache]: Analyzing trace with hash -947039589, now seen corresponding path program 1 times [2021-12-14 11:44:17,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:17,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170645295] [2021-12-14 11:44:17,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:17,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:17,208 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 11:44:17,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:17,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170645295] [2021-12-14 11:44:17,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170645295] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:17,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:17,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:17,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603828175] [2021-12-14 11:44:17,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:17,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:17,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:17,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:17,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:17,211 INFO L87 Difference]: Start difference. First operand 242 states and 408 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:17,289 INFO L93 Difference]: Finished difference Result 493 states and 832 transitions. [2021-12-14 11:44:17,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:17,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 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 84 [2021-12-14 11:44:17,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:17,290 INFO L225 Difference]: With dead ends: 493 [2021-12-14 11:44:17,290 INFO L226 Difference]: Without dead ends: 259 [2021-12-14 11:44:17,291 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 [2021-12-14 11:44:17,292 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 158 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:17,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 150 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:17,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-12-14 11:44:17,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 257. [2021-12-14 11:44:17,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.68359375) internal successors, (431), 256 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 431 transitions. [2021-12-14 11:44:17,299 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 431 transitions. Word has length 84 [2021-12-14 11:44:17,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:17,299 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 431 transitions. [2021-12-14 11:44:17,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,299 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 431 transitions. [2021-12-14 11:44:17,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-14 11:44:17,300 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:17,300 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:17,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 11:44:17,301 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:17,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:17,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1168944985, now seen corresponding path program 1 times [2021-12-14 11:44:17,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:17,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110588377] [2021-12-14 11:44:17,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:17,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:44:17,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:17,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110588377] [2021-12-14 11:44:17,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110588377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:17,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:17,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:17,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692519515] [2021-12-14 11:44:17,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:17,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:17,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:17,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:17,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:17,348 INFO L87 Difference]: Start difference. First operand 257 states and 431 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:17,445 INFO L93 Difference]: Finished difference Result 552 states and 931 transitions. [2021-12-14 11:44:17,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:17,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-12-14 11:44:17,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:17,448 INFO L225 Difference]: With dead ends: 552 [2021-12-14 11:44:17,448 INFO L226 Difference]: Without dead ends: 303 [2021-12-14 11:44:17,448 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 [2021-12-14 11:44:17,452 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 133 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:17,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 144 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:17,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-12-14 11:44:17,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2021-12-14 11:44:17,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.6946308724832215) internal successors, (505), 298 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 505 transitions. [2021-12-14 11:44:17,461 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 505 transitions. Word has length 84 [2021-12-14 11:44:17,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:17,461 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 505 transitions. [2021-12-14 11:44:17,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,462 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 505 transitions. [2021-12-14 11:44:17,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-14 11:44:17,462 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:17,462 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:17,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 11:44:17,463 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:17,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:17,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2129818626, now seen corresponding path program 1 times [2021-12-14 11:44:17,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:17,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51150257] [2021-12-14 11:44:17,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:17,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:17,488 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 11:44:17,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:17,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51150257] [2021-12-14 11:44:17,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51150257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:17,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:17,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:17,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282674704] [2021-12-14 11:44:17,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:17,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:17,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:17,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:17,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:17,490 INFO L87 Difference]: Start difference. First operand 299 states and 505 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:17,602 INFO L93 Difference]: Finished difference Result 592 states and 1000 transitions. [2021-12-14 11:44:17,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:17,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 85 [2021-12-14 11:44:17,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:17,604 INFO L225 Difference]: With dead ends: 592 [2021-12-14 11:44:17,604 INFO L226 Difference]: Without dead ends: 301 [2021-12-14 11:44:17,604 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 [2021-12-14 11:44:17,605 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 157 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:17,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 138 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:17,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-12-14 11:44:17,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2021-12-14 11:44:17,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.6812080536912752) internal successors, (501), 298 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 501 transitions. [2021-12-14 11:44:17,610 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 501 transitions. Word has length 85 [2021-12-14 11:44:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:17,610 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 501 transitions. [2021-12-14 11:44:17,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,611 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 501 transitions. [2021-12-14 11:44:17,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-14 11:44:17,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:17,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:17,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 11:44:17,612 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:17,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:17,612 INFO L85 PathProgramCache]: Analyzing trace with hash -122958423, now seen corresponding path program 1 times [2021-12-14 11:44:17,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:17,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770817298] [2021-12-14 11:44:17,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:17,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:44:17,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:17,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770817298] [2021-12-14 11:44:17,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770817298] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:17,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:17,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:17,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010513827] [2021-12-14 11:44:17,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:17,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:17,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:17,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:17,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:17,673 INFO L87 Difference]: Start difference. First operand 299 states and 501 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:17,787 INFO L93 Difference]: Finished difference Result 594 states and 995 transitions. [2021-12-14 11:44:17,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:17,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-12-14 11:44:17,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:17,790 INFO L225 Difference]: With dead ends: 594 [2021-12-14 11:44:17,790 INFO L226 Difference]: Without dead ends: 301 [2021-12-14 11:44:17,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:17,795 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 130 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:17,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 143 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:17,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-12-14 11:44:17,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 297. [2021-12-14 11:44:17,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.6756756756756757) internal successors, (496), 296 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 496 transitions. [2021-12-14 11:44:17,817 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 496 transitions. Word has length 85 [2021-12-14 11:44:17,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:17,817 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 496 transitions. [2021-12-14 11:44:17,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,817 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 496 transitions. [2021-12-14 11:44:17,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-14 11:44:17,818 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:17,818 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:17,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 11:44:17,818 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:17,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:17,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1553184093, now seen corresponding path program 1 times [2021-12-14 11:44:17,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:17,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573527484] [2021-12-14 11:44:17,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:17,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:17,838 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-14 11:44:17,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:17,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573527484] [2021-12-14 11:44:17,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573527484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:17,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:17,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:17,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259289263] [2021-12-14 11:44:17,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:17,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:17,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:17,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:17,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:17,840 INFO L87 Difference]: Start difference. First operand 297 states and 496 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:17,903 INFO L93 Difference]: Finished difference Result 595 states and 992 transitions. [2021-12-14 11:44:17,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:17,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 [2021-12-14 11:44:17,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:17,905 INFO L225 Difference]: With dead ends: 595 [2021-12-14 11:44:17,905 INFO L226 Difference]: Without dead ends: 306 [2021-12-14 11:44:17,905 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 [2021-12-14 11:44:17,906 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 162 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:17,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 149 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:17,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-12-14 11:44:17,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2021-12-14 11:44:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.6459016393442623) internal successors, (502), 305 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 502 transitions. [2021-12-14 11:44:17,913 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 502 transitions. Word has length 97 [2021-12-14 11:44:17,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:17,913 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 502 transitions. [2021-12-14 11:44:17,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:17,913 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 502 transitions. [2021-12-14 11:44:17,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-14 11:44:17,914 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:17,914 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-14 11:44:17,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 11:44:17,914 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:17,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:17,915 INFO L85 PathProgramCache]: Analyzing trace with hash -2083521026, now seen corresponding path program 1 times [2021-12-14 11:44:17,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:17,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927986211] [2021-12-14 11:44:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:17,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:17,935 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 11:44:17,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:17,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927986211] [2021-12-14 11:44:17,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927986211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:17,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:17,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:17,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668870302] [2021-12-14 11:44:17,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:17,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:17,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:17,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:17,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:17,937 INFO L87 Difference]: Start difference. First operand 306 states and 502 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:18,040 INFO L93 Difference]: Finished difference Result 635 states and 1045 transitions. [2021-12-14 11:44:18,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:18,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 98 [2021-12-14 11:44:18,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:18,042 INFO L225 Difference]: With dead ends: 635 [2021-12-14 11:44:18,042 INFO L226 Difference]: Without dead ends: 337 [2021-12-14 11:44:18,042 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 [2021-12-14 11:44:18,043 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 141 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:18,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 141 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:18,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-12-14 11:44:18,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2021-12-14 11:44:18,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.6437125748502994) internal successors, (549), 334 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 549 transitions. [2021-12-14 11:44:18,050 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 549 transitions. Word has length 98 [2021-12-14 11:44:18,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:18,051 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 549 transitions. [2021-12-14 11:44:18,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,051 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 549 transitions. [2021-12-14 11:44:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-14 11:44:18,052 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:18,052 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-14 11:44:18,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 11:44:18,052 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:18,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:18,053 INFO L85 PathProgramCache]: Analyzing trace with hash -102460539, now seen corresponding path program 1 times [2021-12-14 11:44:18,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:18,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590490740] [2021-12-14 11:44:18,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:18,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 11:44:18,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:18,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590490740] [2021-12-14 11:44:18,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590490740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:18,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:18,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:18,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402334760] [2021-12-14 11:44:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:18,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:18,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:18,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:18,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:18,075 INFO L87 Difference]: Start difference. First operand 335 states and 549 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:18,157 INFO L93 Difference]: Finished difference Result 664 states and 1088 transitions. [2021-12-14 11:44:18,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:18,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 99 [2021-12-14 11:44:18,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:18,159 INFO L225 Difference]: With dead ends: 664 [2021-12-14 11:44:18,159 INFO L226 Difference]: Without dead ends: 337 [2021-12-14 11:44:18,160 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 [2021-12-14 11:44:18,160 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 140 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:18,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 141 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:18,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-12-14 11:44:18,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2021-12-14 11:44:18,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.6317365269461077) internal successors, (545), 334 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 545 transitions. [2021-12-14 11:44:18,179 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 545 transitions. Word has length 99 [2021-12-14 11:44:18,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:18,180 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 545 transitions. [2021-12-14 11:44:18,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,181 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 545 transitions. [2021-12-14 11:44:18,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-14 11:44:18,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:18,182 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:18,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 11:44:18,182 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:18,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:18,183 INFO L85 PathProgramCache]: Analyzing trace with hash -651386898, now seen corresponding path program 1 times [2021-12-14 11:44:18,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:18,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100124635] [2021-12-14 11:44:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:18,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:18,206 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 11:44:18,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:18,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100124635] [2021-12-14 11:44:18,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100124635] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:18,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:18,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:18,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184632344] [2021-12-14 11:44:18,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:18,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:18,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:18,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:18,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:18,209 INFO L87 Difference]: Start difference. First operand 335 states and 545 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:18,292 INFO L93 Difference]: Finished difference Result 697 states and 1138 transitions. [2021-12-14 11:44:18,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:18,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 100 [2021-12-14 11:44:18,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:18,294 INFO L225 Difference]: With dead ends: 697 [2021-12-14 11:44:18,294 INFO L226 Difference]: Without dead ends: 370 [2021-12-14 11:44:18,295 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 [2021-12-14 11:44:18,295 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 143 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:18,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 149 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:18,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-12-14 11:44:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 362. [2021-12-14 11:44:18,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 361 states have (on average 1.626038781163435) internal successors, (587), 361 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 587 transitions. [2021-12-14 11:44:18,304 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 587 transitions. Word has length 100 [2021-12-14 11:44:18,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:18,305 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 587 transitions. [2021-12-14 11:44:18,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,305 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 587 transitions. [2021-12-14 11:44:18,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-14 11:44:18,306 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:18,306 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:18,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 11:44:18,307 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:18,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:18,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1258189035, now seen corresponding path program 1 times [2021-12-14 11:44:18,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:18,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204358439] [2021-12-14 11:44:18,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:18,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:18,332 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 11:44:18,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:18,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204358439] [2021-12-14 11:44:18,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204358439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:18,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:18,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:18,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311009729] [2021-12-14 11:44:18,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:18,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:18,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:18,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:18,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:18,334 INFO L87 Difference]: Start difference. First operand 362 states and 587 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:18,418 INFO L93 Difference]: Finished difference Result 724 states and 1175 transitions. [2021-12-14 11:44:18,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:18,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 101 [2021-12-14 11:44:18,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:18,420 INFO L225 Difference]: With dead ends: 724 [2021-12-14 11:44:18,420 INFO L226 Difference]: Without dead ends: 370 [2021-12-14 11:44:18,421 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 [2021-12-14 11:44:18,421 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 142 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:18,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 149 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:18,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-12-14 11:44:18,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 362. [2021-12-14 11:44:18,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 361 states have (on average 1.6121883656509695) internal successors, (582), 361 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 582 transitions. [2021-12-14 11:44:18,429 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 582 transitions. Word has length 101 [2021-12-14 11:44:18,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:18,430 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 582 transitions. [2021-12-14 11:44:18,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,430 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 582 transitions. [2021-12-14 11:44:18,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-14 11:44:18,431 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:18,431 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:18,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 11:44:18,431 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:18,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:18,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1027805126, now seen corresponding path program 1 times [2021-12-14 11:44:18,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:18,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793431450] [2021-12-14 11:44:18,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:18,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:18,449 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-14 11:44:18,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:18,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793431450] [2021-12-14 11:44:18,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793431450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:18,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:18,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:18,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456776602] [2021-12-14 11:44:18,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:18,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:18,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:18,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:18,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:18,451 INFO L87 Difference]: Start difference. First operand 362 states and 582 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:18,528 INFO L93 Difference]: Finished difference Result 742 states and 1195 transitions. [2021-12-14 11:44:18,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:18,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-12-14 11:44:18,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:18,530 INFO L225 Difference]: With dead ends: 742 [2021-12-14 11:44:18,530 INFO L226 Difference]: Without dead ends: 388 [2021-12-14 11:44:18,531 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 [2021-12-14 11:44:18,531 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 149 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:18,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 146 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:18,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-12-14 11:44:18,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2021-12-14 11:44:18,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.5994764397905759) internal successors, (611), 382 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 611 transitions. [2021-12-14 11:44:18,540 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 611 transitions. Word has length 105 [2021-12-14 11:44:18,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:18,541 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 611 transitions. [2021-12-14 11:44:18,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,541 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 611 transitions. [2021-12-14 11:44:18,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-14 11:44:18,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:18,542 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:18,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 11:44:18,543 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:18,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:18,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1570072403, now seen corresponding path program 1 times [2021-12-14 11:44:18,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:18,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140470142] [2021-12-14 11:44:18,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:18,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-14 11:44:18,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:18,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140470142] [2021-12-14 11:44:18,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140470142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:18,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:18,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:18,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107818958] [2021-12-14 11:44:18,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:18,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:18,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:18,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:18,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:18,563 INFO L87 Difference]: Start difference. First operand 383 states and 611 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:18,637 INFO L93 Difference]: Finished difference Result 763 states and 1218 transitions. [2021-12-14 11:44:18,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:18,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-14 11:44:18,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:18,639 INFO L225 Difference]: With dead ends: 763 [2021-12-14 11:44:18,639 INFO L226 Difference]: Without dead ends: 388 [2021-12-14 11:44:18,639 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 [2021-12-14 11:44:18,640 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 148 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:18,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 146 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-12-14 11:44:18,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2021-12-14 11:44:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.5837696335078535) internal successors, (605), 382 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 605 transitions. [2021-12-14 11:44:18,660 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 605 transitions. Word has length 106 [2021-12-14 11:44:18,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:18,660 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 605 transitions. [2021-12-14 11:44:18,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,660 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 605 transitions. [2021-12-14 11:44:18,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-14 11:44:18,661 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:18,662 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:18,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 11:44:18,662 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:18,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:18,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1383340250, now seen corresponding path program 1 times [2021-12-14 11:44:18,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:18,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459241707] [2021-12-14 11:44:18,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:18,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 11:44:18,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:18,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459241707] [2021-12-14 11:44:18,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459241707] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:18,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:18,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:18,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652170305] [2021-12-14 11:44:18,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:18,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:18,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:18,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:18,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:18,698 INFO L87 Difference]: Start difference. First operand 383 states and 605 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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) [2021-12-14 11:44:18,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:18,728 INFO L93 Difference]: Finished difference Result 1127 states and 1785 transitions. [2021-12-14 11:44:18,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:18,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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 121 [2021-12-14 11:44:18,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:18,731 INFO L225 Difference]: With dead ends: 1127 [2021-12-14 11:44:18,731 INFO L226 Difference]: Without dead ends: 752 [2021-12-14 11:44:18,731 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 [2021-12-14 11:44:18,732 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 133 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:18,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 539 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:44:18,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2021-12-14 11:44:18,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2021-12-14 11:44:18,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 751 states have (on average 1.5805592543275633) internal successors, (1187), 751 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1187 transitions. [2021-12-14 11:44:18,749 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1187 transitions. Word has length 121 [2021-12-14 11:44:18,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:18,749 INFO L470 AbstractCegarLoop]: Abstraction has 752 states and 1187 transitions. [2021-12-14 11:44:18,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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) [2021-12-14 11:44:18,750 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1187 transitions. [2021-12-14 11:44:18,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-14 11:44:18,751 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:18,751 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:18,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 11:44:18,751 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:18,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:18,751 INFO L85 PathProgramCache]: Analyzing trace with hash 485946972, now seen corresponding path program 1 times [2021-12-14 11:44:18,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:18,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962989993] [2021-12-14 11:44:18,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:18,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-14 11:44:18,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:18,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962989993] [2021-12-14 11:44:18,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962989993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:18,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:18,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:18,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012376841] [2021-12-14 11:44:18,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:18,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:18,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:18,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:18,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:18,774 INFO L87 Difference]: Start difference. First operand 752 states and 1187 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:18,808 INFO L93 Difference]: Finished difference Result 1825 states and 2885 transitions. [2021-12-14 11:44:18,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:18,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-12-14 11:44:18,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:18,811 INFO L225 Difference]: With dead ends: 1825 [2021-12-14 11:44:18,811 INFO L226 Difference]: Without dead ends: 1081 [2021-12-14 11:44:18,812 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 [2021-12-14 11:44:18,813 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 135 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:18,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 543 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:44:18,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2021-12-14 11:44:18,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1081. [2021-12-14 11:44:18,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1080 states have (on average 1.5787037037037037) internal successors, (1705), 1080 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1705 transitions. [2021-12-14 11:44:18,838 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1705 transitions. Word has length 121 [2021-12-14 11:44:18,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:18,838 INFO L470 AbstractCegarLoop]: Abstraction has 1081 states and 1705 transitions. [2021-12-14 11:44:18,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1705 transitions. [2021-12-14 11:44:18,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-14 11:44:18,840 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:18,840 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:18,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-14 11:44:18,840 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:18,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:18,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1941217889, now seen corresponding path program 1 times [2021-12-14 11:44:18,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:18,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111698432] [2021-12-14 11:44:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:18,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:18,862 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-14 11:44:18,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:18,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111698432] [2021-12-14 11:44:18,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111698432] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:18,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:18,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:18,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838398945] [2021-12-14 11:44:18,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:18,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:18,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:18,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:18,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:18,864 INFO L87 Difference]: Start difference. First operand 1081 states and 1705 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:18,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:18,971 INFO L93 Difference]: Finished difference Result 2277 states and 3596 transitions. [2021-12-14 11:44:18,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:18,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 121 [2021-12-14 11:44:18,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:18,975 INFO L225 Difference]: With dead ends: 2277 [2021-12-14 11:44:18,976 INFO L226 Difference]: Without dead ends: 1204 [2021-12-14 11:44:18,983 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 [2021-12-14 11:44:18,983 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 129 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:18,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 145 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:18,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2021-12-14 11:44:19,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1195. [2021-12-14 11:44:19,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 1194 states have (on average 1.5770519262981575) internal successors, (1883), 1194 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1883 transitions. [2021-12-14 11:44:19,009 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1883 transitions. Word has length 121 [2021-12-14 11:44:19,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:19,009 INFO L470 AbstractCegarLoop]: Abstraction has 1195 states and 1883 transitions. [2021-12-14 11:44:19,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1883 transitions. [2021-12-14 11:44:19,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-14 11:44:19,011 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:19,011 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:19,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-14 11:44:19,011 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:19,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:19,011 INFO L85 PathProgramCache]: Analyzing trace with hash 56372730, now seen corresponding path program 1 times [2021-12-14 11:44:19,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:19,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209996752] [2021-12-14 11:44:19,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:19,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:19,028 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-14 11:44:19,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:19,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209996752] [2021-12-14 11:44:19,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209996752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:19,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:19,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:19,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584897886] [2021-12-14 11:44:19,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:19,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:19,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:19,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:19,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:19,030 INFO L87 Difference]: Start difference. First operand 1195 states and 1883 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:19,071 INFO L93 Difference]: Finished difference Result 2788 states and 4398 transitions. [2021-12-14 11:44:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:19,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 [2021-12-14 11:44:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:19,076 INFO L225 Difference]: With dead ends: 2788 [2021-12-14 11:44:19,076 INFO L226 Difference]: Without dead ends: 1601 [2021-12-14 11:44:19,078 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 [2021-12-14 11:44:19,078 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:19,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 546 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:44:19,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2021-12-14 11:44:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2021-12-14 11:44:19,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1600 states have (on average 1.576875) internal successors, (2523), 1600 states have internal predecessors, (2523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2523 transitions. [2021-12-14 11:44:19,114 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2523 transitions. Word has length 122 [2021-12-14 11:44:19,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:19,114 INFO L470 AbstractCegarLoop]: Abstraction has 1601 states and 2523 transitions. [2021-12-14 11:44:19,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2523 transitions. [2021-12-14 11:44:19,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-14 11:44:19,116 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:19,116 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:19,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 11:44:19,117 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:19,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:19,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1445666744, now seen corresponding path program 1 times [2021-12-14 11:44:19,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:19,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525943] [2021-12-14 11:44:19,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:19,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:19,138 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-14 11:44:19,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:19,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525943] [2021-12-14 11:44:19,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:19,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:19,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:19,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798971331] [2021-12-14 11:44:19,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:19,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:19,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:19,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:19,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:19,140 INFO L87 Difference]: Start difference. First operand 1601 states and 2523 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:19,186 INFO L93 Difference]: Finished difference Result 3583 states and 5649 transitions. [2021-12-14 11:44:19,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:19,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 [2021-12-14 11:44:19,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:19,192 INFO L225 Difference]: With dead ends: 3583 [2021-12-14 11:44:19,192 INFO L226 Difference]: Without dead ends: 1990 [2021-12-14 11:44:19,201 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 [2021-12-14 11:44:19,202 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 170 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:19,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 389 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:44:19,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2021-12-14 11:44:19,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2021-12-14 11:44:19,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1989 states have (on average 1.5751633986928104) internal successors, (3133), 1989 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 3133 transitions. [2021-12-14 11:44:19,248 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 3133 transitions. Word has length 122 [2021-12-14 11:44:19,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:19,248 INFO L470 AbstractCegarLoop]: Abstraction has 1990 states and 3133 transitions. [2021-12-14 11:44:19,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 3133 transitions. [2021-12-14 11:44:19,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-14 11:44:19,252 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:19,252 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:19,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-14 11:44:19,253 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:19,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:19,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1809319208, now seen corresponding path program 1 times [2021-12-14 11:44:19,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:19,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745657654] [2021-12-14 11:44:19,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:19,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:19,286 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-14 11:44:19,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:19,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745657654] [2021-12-14 11:44:19,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745657654] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:19,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:19,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:19,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868898754] [2021-12-14 11:44:19,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:19,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:19,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:19,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:19,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:19,288 INFO L87 Difference]: Start difference. First operand 1990 states and 3133 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:19,406 INFO L93 Difference]: Finished difference Result 4022 states and 6314 transitions. [2021-12-14 11:44:19,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:19,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 199 [2021-12-14 11:44:19,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:19,412 INFO L225 Difference]: With dead ends: 4022 [2021-12-14 11:44:19,412 INFO L226 Difference]: Without dead ends: 2040 [2021-12-14 11:44:19,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:19,415 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 50 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:19,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 297 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:19,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2021-12-14 11:44:19,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 1990. [2021-12-14 11:44:19,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1989 states have (on average 1.5409753645047763) internal successors, (3065), 1989 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 3065 transitions. [2021-12-14 11:44:19,493 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 3065 transitions. Word has length 199 [2021-12-14 11:44:19,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:19,494 INFO L470 AbstractCegarLoop]: Abstraction has 1990 states and 3065 transitions. [2021-12-14 11:44:19,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 3065 transitions. [2021-12-14 11:44:19,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-14 11:44:19,498 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:19,498 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:19,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-14 11:44:19,499 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:19,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:19,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1550608766, now seen corresponding path program 1 times [2021-12-14 11:44:19,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:19,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454984124] [2021-12-14 11:44:19,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:19,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-14 11:44:19,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:19,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454984124] [2021-12-14 11:44:19,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454984124] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:19,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:19,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:19,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158045440] [2021-12-14 11:44:19,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:19,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:19,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:19,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:19,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:19,529 INFO L87 Difference]: Start difference. First operand 1990 states and 3065 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:19,670 INFO L93 Difference]: Finished difference Result 4039 states and 6195 transitions. [2021-12-14 11:44:19,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:19,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2021-12-14 11:44:19,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:19,676 INFO L225 Difference]: With dead ends: 4039 [2021-12-14 11:44:19,676 INFO L226 Difference]: Without dead ends: 2057 [2021-12-14 11:44:19,678 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 [2021-12-14 11:44:19,679 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 152 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:19,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 163 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:19,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2021-12-14 11:44:19,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 1990. [2021-12-14 11:44:19,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1989 states have (on average 1.497737556561086) internal successors, (2979), 1989 states have internal predecessors, (2979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2979 transitions. [2021-12-14 11:44:19,723 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2979 transitions. Word has length 213 [2021-12-14 11:44:19,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:19,723 INFO L470 AbstractCegarLoop]: Abstraction has 1990 states and 2979 transitions. [2021-12-14 11:44:19,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2979 transitions. [2021-12-14 11:44:19,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-14 11:44:19,727 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:19,727 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:19,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-14 11:44:19,728 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:19,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:19,728 INFO L85 PathProgramCache]: Analyzing trace with hash -832668616, now seen corresponding path program 1 times [2021-12-14 11:44:19,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:19,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084319753] [2021-12-14 11:44:19,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:19,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-12-14 11:44:19,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:19,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084319753] [2021-12-14 11:44:19,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084319753] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:19,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:19,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:19,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172258702] [2021-12-14 11:44:19,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:19,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:19,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:19,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:19,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:19,757 INFO L87 Difference]: Start difference. First operand 1990 states and 2979 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:19,904 INFO L93 Difference]: Finished difference Result 4217 states and 6306 transitions. [2021-12-14 11:44:19,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:19,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 [2021-12-14 11:44:19,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:19,911 INFO L225 Difference]: With dead ends: 4217 [2021-12-14 11:44:19,911 INFO L226 Difference]: Without dead ends: 2110 [2021-12-14 11:44:19,913 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 [2021-12-14 11:44:19,913 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 47 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:19,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 288 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:19,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2021-12-14 11:44:19,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 2060. [2021-12-14 11:44:19,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 2059 states have (on average 1.473530840213696) internal successors, (3034), 2059 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 3034 transitions. [2021-12-14 11:44:19,957 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 3034 transitions. Word has length 241 [2021-12-14 11:44:19,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:19,957 INFO L470 AbstractCegarLoop]: Abstraction has 2060 states and 3034 transitions. [2021-12-14 11:44:19,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:19,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 3034 transitions. [2021-12-14 11:44:19,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-14 11:44:19,961 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:19,962 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-14 11:44:19,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-14 11:44:19,962 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:19,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:19,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1153610059, now seen corresponding path program 1 times [2021-12-14 11:44:19,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:19,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337993821] [2021-12-14 11:44:19,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:19,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:19,994 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-14 11:44:19,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:19,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337993821] [2021-12-14 11:44:19,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337993821] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 11:44:19,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392073049] [2021-12-14 11:44:19,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:19,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:44:19,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:44:19,997 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) [2021-12-14 11:44:20,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 11:44:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:20,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 11:44:20,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:44:20,430 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-14 11:44:20,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:44:20,688 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-14 11:44:20,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392073049] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:44:20,688 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 11:44:20,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-14 11:44:20,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914145086] [2021-12-14 11:44:20,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 11:44:20,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 11:44:20,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:20,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 11:44:20,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 11:44:20,703 INFO L87 Difference]: Start difference. First operand 2060 states and 3034 transitions. Second operand has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:21,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:21,362 INFO L93 Difference]: Finished difference Result 8989 states and 13226 transitions. [2021-12-14 11:44:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 11:44:21,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2021-12-14 11:44:21,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:21,380 INFO L225 Difference]: With dead ends: 8989 [2021-12-14 11:44:21,381 INFO L226 Difference]: Without dead ends: 6937 [2021-12-14 11:44:21,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-12-14 11:44:21,386 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 462 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:21,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 1570 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-14 11:44:21,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6937 states. [2021-12-14 11:44:21,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6937 to 2845. [2021-12-14 11:44:21,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2845 states, 2844 states have (on average 1.3463431786216595) internal successors, (3829), 2844 states have internal predecessors, (3829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:21,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2845 states to 2845 states and 3829 transitions. [2021-12-14 11:44:21,471 INFO L78 Accepts]: Start accepts. Automaton has 2845 states and 3829 transitions. Word has length 253 [2021-12-14 11:44:21,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:21,471 INFO L470 AbstractCegarLoop]: Abstraction has 2845 states and 3829 transitions. [2021-12-14 11:44:21,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:21,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2845 states and 3829 transitions. [2021-12-14 11:44:21,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-14 11:44:21,476 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:21,476 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-14 11:44:21,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 11:44:21,697 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,SelfDestructingSolverStorable22 [2021-12-14 11:44:21,697 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:21,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:21,698 INFO L85 PathProgramCache]: Analyzing trace with hash -864790669, now seen corresponding path program 1 times [2021-12-14 11:44:21,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:21,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071887120] [2021-12-14 11:44:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:21,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:21,727 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-12-14 11:44:21,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:21,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071887120] [2021-12-14 11:44:21,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071887120] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:21,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:21,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:21,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601158144] [2021-12-14 11:44:21,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:21,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:21,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:21,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:21,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:21,730 INFO L87 Difference]: Start difference. First operand 2845 states and 3829 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:21,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:21,799 INFO L93 Difference]: Finished difference Result 8058 states and 10910 transitions. [2021-12-14 11:44:21,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:21,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 253 [2021-12-14 11:44:21,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:21,818 INFO L225 Difference]: With dead ends: 8058 [2021-12-14 11:44:21,818 INFO L226 Difference]: Without dead ends: 5221 [2021-12-14 11:44:21,822 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 [2021-12-14 11:44:21,822 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 132 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:21,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 543 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:44:21,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2021-12-14 11:44:21,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5219. [2021-12-14 11:44:21,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 1.3566500574932925) internal successors, (7079), 5218 states have internal predecessors, (7079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:21,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 7079 transitions. [2021-12-14 11:44:21,980 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 7079 transitions. Word has length 253 [2021-12-14 11:44:21,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:21,981 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 7079 transitions. [2021-12-14 11:44:21,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 7079 transitions. [2021-12-14 11:44:21,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-12-14 11:44:21,990 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:21,990 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:21,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-14 11:44:21,991 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:21,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:21,991 INFO L85 PathProgramCache]: Analyzing trace with hash 52349753, now seen corresponding path program 1 times [2021-12-14 11:44:21,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:21,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380330276] [2021-12-14 11:44:21,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:21,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-12-14 11:44:22,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:22,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380330276] [2021-12-14 11:44:22,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380330276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:22,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:22,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:22,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320189537] [2021-12-14 11:44:22,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:22,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:22,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:22,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:22,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:22,022 INFO L87 Difference]: Start difference. First operand 5219 states and 7079 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:22,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:22,170 INFO L93 Difference]: Finished difference Result 10530 states and 14266 transitions. [2021-12-14 11:44:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:22,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 256 [2021-12-14 11:44:22,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:22,179 INFO L225 Difference]: With dead ends: 10530 [2021-12-14 11:44:22,179 INFO L226 Difference]: Without dead ends: 5319 [2021-12-14 11:44:22,184 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 [2021-12-14 11:44:22,185 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 150 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:22,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 184 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:22,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5319 states. [2021-12-14 11:44:22,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5319 to 5219. [2021-12-14 11:44:22,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 1.3363357608279034) internal successors, (6973), 5218 states have internal predecessors, (6973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 6973 transitions. [2021-12-14 11:44:22,308 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 6973 transitions. Word has length 256 [2021-12-14 11:44:22,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:22,308 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 6973 transitions. [2021-12-14 11:44:22,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:22,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 6973 transitions. [2021-12-14 11:44:22,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-12-14 11:44:22,317 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:22,317 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:22,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-14 11:44:22,318 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:22,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:22,318 INFO L85 PathProgramCache]: Analyzing trace with hash 212492165, now seen corresponding path program 1 times [2021-12-14 11:44:22,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:22,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886896524] [2021-12-14 11:44:22,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:22,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:22,354 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 518 proven. 5 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-12-14 11:44:22,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:22,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886896524] [2021-12-14 11:44:22,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886896524] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 11:44:22,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514316312] [2021-12-14 11:44:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:22,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:44:22,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:44:22,357 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) [2021-12-14 11:44:22,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 11:44:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:22,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 11:44:22,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:44:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2021-12-14 11:44:22,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 11:44:22,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514316312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:22,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 11:44:22,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-14 11:44:22,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815409662] [2021-12-14 11:44:22,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:22,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:22,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:22,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:22,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:44:22,714 INFO L87 Difference]: Start difference. First operand 5219 states and 6973 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:22,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:22,872 INFO L93 Difference]: Finished difference Result 9731 states and 13058 transitions. [2021-12-14 11:44:22,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:22,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2021-12-14 11:44:22,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:22,880 INFO L225 Difference]: With dead ends: 9731 [2021-12-14 11:44:22,880 INFO L226 Difference]: Without dead ends: 5559 [2021-12-14 11:44:22,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:44:22,885 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 111 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:22,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 250 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:22,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5559 states. [2021-12-14 11:44:22,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5559 to 5239. [2021-12-14 11:44:22,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 1.3323787705231005) internal successors, (6979), 5238 states have internal predecessors, (6979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:22,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 6979 transitions. [2021-12-14 11:44:22,976 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 6979 transitions. Word has length 282 [2021-12-14 11:44:22,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:22,976 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 6979 transitions. [2021-12-14 11:44:22,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:22,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 6979 transitions. [2021-12-14 11:44:22,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-12-14 11:44:22,983 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:22,983 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-14 11:44:23,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 11:44:23,199 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,SelfDestructingSolverStorable25 [2021-12-14 11:44:23,199 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:23,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:23,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1760130215, now seen corresponding path program 1 times [2021-12-14 11:44:23,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:23,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266677650] [2021-12-14 11:44:23,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:23,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:23,249 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 518 proven. 5 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-12-14 11:44:23,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:23,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266677650] [2021-12-14 11:44:23,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266677650] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 11:44:23,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041759398] [2021-12-14 11:44:23,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:23,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:44:23,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:44:23,251 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:44:23,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 11:44:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:23,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 11:44:23,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:44:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 421 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2021-12-14 11:44:23,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 11:44:23,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041759398] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:23,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 11:44:23,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-14 11:44:23,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902757115] [2021-12-14 11:44:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:23,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:23,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:23,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:23,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:44:23,668 INFO L87 Difference]: Start difference. First operand 5239 states and 6979 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:23,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:23,791 INFO L93 Difference]: Finished difference Result 10470 states and 13946 transitions. [2021-12-14 11:44:23,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:23,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 283 [2021-12-14 11:44:23,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:23,803 INFO L225 Difference]: With dead ends: 10470 [2021-12-14 11:44:23,803 INFO L226 Difference]: Without dead ends: 5239 [2021-12-14 11:44:23,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:44:23,811 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 4 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:23,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 305 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:23,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5239 states. [2021-12-14 11:44:23,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5239 to 5239. [2021-12-14 11:44:23,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 1.3304696449026345) internal successors, (6969), 5238 states have internal predecessors, (6969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:23,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 6969 transitions. [2021-12-14 11:44:23,928 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 6969 transitions. Word has length 283 [2021-12-14 11:44:23,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:23,928 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 6969 transitions. [2021-12-14 11:44:23,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 6969 transitions. [2021-12-14 11:44:23,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-12-14 11:44:23,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:23,935 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:23,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 11:44:24,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:44:24,152 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:24,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:24,152 INFO L85 PathProgramCache]: Analyzing trace with hash 228335597, now seen corresponding path program 1 times [2021-12-14 11:44:24,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:24,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885007597] [2021-12-14 11:44:24,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:24,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:24,195 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 526 proven. 6 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-12-14 11:44:24,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:24,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885007597] [2021-12-14 11:44:24,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885007597] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 11:44:24,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752905949] [2021-12-14 11:44:24,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:24,196 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:44:24,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:44:24,197 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:44:24,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 11:44:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:24,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 11:44:24,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:44:24,572 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 526 proven. 6 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-12-14 11:44:24,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:44:24,903 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 526 proven. 6 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-12-14 11:44:24,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752905949] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:44:24,903 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 11:44:24,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-14 11:44:24,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213890063] [2021-12-14 11:44:24,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 11:44:24,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 11:44:24,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:24,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 11:44:24,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 11:44:24,905 INFO L87 Difference]: Start difference. First operand 5239 states and 6969 transitions. Second operand has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:25,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:25,173 INFO L93 Difference]: Finished difference Result 11481 states and 15154 transitions. [2021-12-14 11:44:25,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 11:44:25,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 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 283 [2021-12-14 11:44:25,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:25,184 INFO L225 Difference]: With dead ends: 11481 [2021-12-14 11:44:25,184 INFO L226 Difference]: Without dead ends: 6168 [2021-12-14 11:44:25,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-14 11:44:25,190 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 513 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:25,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [513 Valid, 490 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 11:44:25,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6168 states. [2021-12-14 11:44:25,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6168 to 4204. [2021-12-14 11:44:25,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4204 states, 4203 states have (on average 1.3043064477753985) internal successors, (5482), 4203 states have internal predecessors, (5482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 5482 transitions. [2021-12-14 11:44:25,315 INFO L78 Accepts]: Start accepts. Automaton has 4204 states and 5482 transitions. Word has length 283 [2021-12-14 11:44:25,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:25,316 INFO L470 AbstractCegarLoop]: Abstraction has 4204 states and 5482 transitions. [2021-12-14 11:44:25,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:25,316 INFO L276 IsEmpty]: Start isEmpty. Operand 4204 states and 5482 transitions. [2021-12-14 11:44:25,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-12-14 11:44:25,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:25,321 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:25,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-14 11:44:25,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-12-14 11:44:25,535 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:25,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:25,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1511923228, now seen corresponding path program 1 times [2021-12-14 11:44:25,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:25,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105404576] [2021-12-14 11:44:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:25,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:25,583 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2021-12-14 11:44:25,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:25,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105404576] [2021-12-14 11:44:25,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105404576] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:25,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:25,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:25,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373785873] [2021-12-14 11:44:25,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:25,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:25,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:25,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:25,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:25,585 INFO L87 Difference]: Start difference. First operand 4204 states and 5482 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:25,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:25,688 INFO L93 Difference]: Finished difference Result 7084 states and 9168 transitions. [2021-12-14 11:44:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:25,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 321 [2021-12-14 11:44:25,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:25,693 INFO L225 Difference]: With dead ends: 7084 [2021-12-14 11:44:25,694 INFO L226 Difference]: Without dead ends: 2245 [2021-12-14 11:44:25,699 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 [2021-12-14 11:44:25,699 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 11 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:25,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 287 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:44:25,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2245 states. [2021-12-14 11:44:25,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2245 to 2245. [2021-12-14 11:44:25,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2245 states, 2244 states have (on average 1.2932263814616756) internal successors, (2902), 2244 states have internal predecessors, (2902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:25,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 2902 transitions. [2021-12-14 11:44:25,739 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 2902 transitions. Word has length 321 [2021-12-14 11:44:25,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:25,739 INFO L470 AbstractCegarLoop]: Abstraction has 2245 states and 2902 transitions. [2021-12-14 11:44:25,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:25,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 2902 transitions. [2021-12-14 11:44:25,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-12-14 11:44:25,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:25,743 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:25,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-14 11:44:25,744 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:25,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:25,744 INFO L85 PathProgramCache]: Analyzing trace with hash 765784792, now seen corresponding path program 1 times [2021-12-14 11:44:25,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:25,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601788269] [2021-12-14 11:44:25,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:25,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2021-12-14 11:44:25,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:25,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601788269] [2021-12-14 11:44:25,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601788269] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:25,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:25,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:25,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317231681] [2021-12-14 11:44:25,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:25,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:25,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:25,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:25,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:25,774 INFO L87 Difference]: Start difference. First operand 2245 states and 2902 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:25,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:25,866 INFO L93 Difference]: Finished difference Result 4571 states and 5904 transitions. [2021-12-14 11:44:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:25,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 323 [2021-12-14 11:44:25,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:25,870 INFO L225 Difference]: With dead ends: 4571 [2021-12-14 11:44:25,870 INFO L226 Difference]: Without dead ends: 2334 [2021-12-14 11:44:25,872 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 [2021-12-14 11:44:25,873 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 13 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:25,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 294 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:25,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2334 states. [2021-12-14 11:44:25,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2334 to 2314. [2021-12-14 11:44:25,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2313 states have (on average 1.2909641158668397) internal successors, (2986), 2313 states have internal predecessors, (2986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:25,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2986 transitions. [2021-12-14 11:44:25,937 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2986 transitions. Word has length 323 [2021-12-14 11:44:25,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:25,937 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 2986 transitions. [2021-12-14 11:44:25,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:25,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2986 transitions. [2021-12-14 11:44:25,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-12-14 11:44:25,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:25,941 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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] [2021-12-14 11:44:25,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-14 11:44:25,941 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:25,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:25,941 INFO L85 PathProgramCache]: Analyzing trace with hash 2092257525, now seen corresponding path program 1 times [2021-12-14 11:44:25,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:25,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252745585] [2021-12-14 11:44:25,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:25,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:25,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2021-12-14 11:44:25,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:25,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252745585] [2021-12-14 11:44:25,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252745585] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:25,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:25,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:25,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52812016] [2021-12-14 11:44:25,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:25,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:25,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:25,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:25,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:25,978 INFO L87 Difference]: Start difference. First operand 2314 states and 2986 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:26,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:26,069 INFO L93 Difference]: Finished difference Result 4810 states and 6230 transitions. [2021-12-14 11:44:26,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:26,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 344 [2021-12-14 11:44:26,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:26,074 INFO L225 Difference]: With dead ends: 4810 [2021-12-14 11:44:26,074 INFO L226 Difference]: Without dead ends: 2504 [2021-12-14 11:44:26,076 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 [2021-12-14 11:44:26,076 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 29 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:26,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 294 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:26,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2504 states. [2021-12-14 11:44:26,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2504 to 2439. [2021-12-14 11:44:26,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2438 states have (on average 1.2863002461033635) internal successors, (3136), 2438 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:26,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3136 transitions. [2021-12-14 11:44:26,117 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3136 transitions. Word has length 344 [2021-12-14 11:44:26,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:26,117 INFO L470 AbstractCegarLoop]: Abstraction has 2439 states and 3136 transitions. [2021-12-14 11:44:26,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:26,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3136 transitions. [2021-12-14 11:44:26,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-12-14 11:44:26,121 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:26,121 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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] [2021-12-14 11:44:26,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-14 11:44:26,122 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:26,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:26,122 INFO L85 PathProgramCache]: Analyzing trace with hash 245519722, now seen corresponding path program 1 times [2021-12-14 11:44:26,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:26,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812301920] [2021-12-14 11:44:26,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:26,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2021-12-14 11:44:26,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:26,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812301920] [2021-12-14 11:44:26,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812301920] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:26,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:26,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:26,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744565867] [2021-12-14 11:44:26,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:26,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:26,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:26,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:26,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:26,158 INFO L87 Difference]: Start difference. First operand 2439 states and 3136 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:26,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:26,255 INFO L93 Difference]: Finished difference Result 4910 states and 6325 transitions. [2021-12-14 11:44:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:26,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 370 [2021-12-14 11:44:26,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:26,259 INFO L225 Difference]: With dead ends: 4910 [2021-12-14 11:44:26,260 INFO L226 Difference]: Without dead ends: 2479 [2021-12-14 11:44:26,262 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 [2021-12-14 11:44:26,263 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 19 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:26,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 293 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:26,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2021-12-14 11:44:26,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2439. [2021-12-14 11:44:26,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2438 states have (on average 1.2760459392945036) internal successors, (3111), 2438 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:26,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3111 transitions. [2021-12-14 11:44:26,304 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3111 transitions. Word has length 370 [2021-12-14 11:44:26,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:26,304 INFO L470 AbstractCegarLoop]: Abstraction has 2439 states and 3111 transitions. [2021-12-14 11:44:26,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:26,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3111 transitions. [2021-12-14 11:44:26,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-12-14 11:44:26,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:26,308 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2021-12-14 11:44:26,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-14 11:44:26,308 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:26,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:26,309 INFO L85 PathProgramCache]: Analyzing trace with hash 35349519, now seen corresponding path program 1 times [2021-12-14 11:44:26,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:26,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373358400] [2021-12-14 11:44:26,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:26,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 1011 proven. 26 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2021-12-14 11:44:26,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:26,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373358400] [2021-12-14 11:44:26,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373358400] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 11:44:26,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78071883] [2021-12-14 11:44:26,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:26,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:44:26,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:44:26,373 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:44:26,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 11:44:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:26,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 11:44:26,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:44:26,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1588 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2021-12-14 11:44:26,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 11:44:26,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78071883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:26,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 11:44:26,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-14 11:44:26,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258764229] [2021-12-14 11:44:26,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:26,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:26,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:26,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:26,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:44:26,947 INFO L87 Difference]: Start difference. First operand 2439 states and 3111 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:26,981 INFO L93 Difference]: Finished difference Result 3046 states and 3899 transitions. [2021-12-14 11:44:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:26,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 393 [2021-12-14 11:44:26,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:26,985 INFO L225 Difference]: With dead ends: 3046 [2021-12-14 11:44:26,986 INFO L226 Difference]: Without dead ends: 2954 [2021-12-14 11:44:26,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:44:26,987 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 90 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:26,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 449 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:44:26,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2021-12-14 11:44:27,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2349. [2021-12-14 11:44:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 2348 states have (on average 1.2819420783645656) internal successors, (3010), 2348 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:27,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3010 transitions. [2021-12-14 11:44:27,028 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3010 transitions. Word has length 393 [2021-12-14 11:44:27,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:27,029 INFO L470 AbstractCegarLoop]: Abstraction has 2349 states and 3010 transitions. [2021-12-14 11:44:27,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:27,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3010 transitions. [2021-12-14 11:44:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-12-14 11:44:27,033 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:27,034 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:27,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 11:44:27,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-12-14 11:44:27,249 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:27,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:27,250 INFO L85 PathProgramCache]: Analyzing trace with hash 431667755, now seen corresponding path program 1 times [2021-12-14 11:44:27,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:27,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655149442] [2021-12-14 11:44:27,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:27,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3139 backedges. 1686 proven. 26 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2021-12-14 11:44:27,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:27,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655149442] [2021-12-14 11:44:27,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655149442] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 11:44:27,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055434437] [2021-12-14 11:44:27,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:27,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:44:27,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:44:27,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:44:27,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 11:44:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:27,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 11:44:27,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:44:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3139 backedges. 1686 proven. 26 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2021-12-14 11:44:28,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:44:28,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3139 backedges. 1686 proven. 26 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2021-12-14 11:44:28,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055434437] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:44:28,605 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 11:44:28,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-14 11:44:28,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711461120] [2021-12-14 11:44:28,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 11:44:28,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 11:44:28,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:28,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 11:44:28,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 11:44:28,609 INFO L87 Difference]: Start difference. First operand 2349 states and 3010 transitions. Second operand has 6 states, 6 states have (on average 43.666666666666664) internal successors, (262), 6 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:28,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:28,951 INFO L93 Difference]: Finished difference Result 5862 states and 7496 transitions. [2021-12-14 11:44:28,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 11:44:28,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 43.666666666666664) internal successors, (262), 6 states have internal predecessors, (262), 0 states have call successors, (0), 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 533 [2021-12-14 11:44:28,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:28,956 INFO L225 Difference]: With dead ends: 5862 [2021-12-14 11:44:28,956 INFO L226 Difference]: Without dead ends: 3451 [2021-12-14 11:44:28,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1072 GetRequests, 1066 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-14 11:44:28,959 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 303 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:28,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 525 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 11:44:28,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3451 states. [2021-12-14 11:44:29,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3451 to 2374. [2021-12-14 11:44:29,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2374 states, 2373 states have (on average 1.2747576906868943) internal successors, (3025), 2373 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:29,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 3025 transitions. [2021-12-14 11:44:29,005 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 3025 transitions. Word has length 533 [2021-12-14 11:44:29,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:29,006 INFO L470 AbstractCegarLoop]: Abstraction has 2374 states and 3025 transitions. [2021-12-14 11:44:29,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.666666666666664) internal successors, (262), 6 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:29,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 3025 transitions. [2021-12-14 11:44:29,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2021-12-14 11:44:29,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:29,010 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 17, 17, 15, 15, 13, 13, 11, 11, 11, 11, 10, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-14 11:44:29,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-14 11:44:29,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:44:29,230 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:29,230 INFO L85 PathProgramCache]: Analyzing trace with hash -32232603, now seen corresponding path program 1 times [2021-12-14 11:44:29,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:29,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988936059] [2021-12-14 11:44:29,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:29,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:29,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4036 backedges. 1616 proven. 0 refuted. 0 times theorem prover too weak. 2420 trivial. 0 not checked. [2021-12-14 11:44:29,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:29,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988936059] [2021-12-14 11:44:29,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988936059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:29,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:29,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:29,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424066008] [2021-12-14 11:44:29,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:29,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:29,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:29,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:29,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:29,283 INFO L87 Difference]: Start difference. First operand 2374 states and 3025 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:29,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:29,367 INFO L93 Difference]: Finished difference Result 4750 states and 6048 transitions. [2021-12-14 11:44:29,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:29,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 595 [2021-12-14 11:44:29,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:29,371 INFO L225 Difference]: With dead ends: 4750 [2021-12-14 11:44:29,371 INFO L226 Difference]: Without dead ends: 2384 [2021-12-14 11:44:29,373 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 [2021-12-14 11:44:29,373 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 11 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:29,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 292 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:29,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2021-12-14 11:44:29,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2374. [2021-12-14 11:44:29,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2374 states, 2373 states have (on average 1.2642225031605563) internal successors, (3000), 2373 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:29,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 3000 transitions. [2021-12-14 11:44:29,417 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 3000 transitions. Word has length 595 [2021-12-14 11:44:29,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:29,418 INFO L470 AbstractCegarLoop]: Abstraction has 2374 states and 3000 transitions. [2021-12-14 11:44:29,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:29,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 3000 transitions. [2021-12-14 11:44:29,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2021-12-14 11:44:29,423 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:29,423 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 19, 19, 17, 17, 15, 15, 13, 13, 13, 13, 10, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:29,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-14 11:44:29,424 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:29,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:29,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1381913185, now seen corresponding path program 1 times [2021-12-14 11:44:29,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:29,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024594757] [2021-12-14 11:44:29,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:29,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:29,518 INFO L134 CoverageAnalysis]: Checked inductivity of 4971 backedges. 2404 proven. 0 refuted. 0 times theorem prover too weak. 2567 trivial. 0 not checked. [2021-12-14 11:44:29,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:29,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024594757] [2021-12-14 11:44:29,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024594757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:44:29,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:44:29,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:44:29,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542268550] [2021-12-14 11:44:29,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:44:29,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:44:29,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:29,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:44:29,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:44:29,520 INFO L87 Difference]: Start difference. First operand 2374 states and 3000 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:29,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:29,609 INFO L93 Difference]: Finished difference Result 4920 states and 6228 transitions. [2021-12-14 11:44:29,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:44:29,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 661 [2021-12-14 11:44:29,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:29,613 INFO L225 Difference]: With dead ends: 4920 [2021-12-14 11:44:29,613 INFO L226 Difference]: Without dead ends: 2554 [2021-12-14 11:44:29,615 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 [2021-12-14 11:44:29,616 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 11 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:29,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 290 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:44:29,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2021-12-14 11:44:29,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2544. [2021-12-14 11:44:29,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 2543 states have (on average 1.256390090444357) internal successors, (3195), 2543 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:29,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3195 transitions. [2021-12-14 11:44:29,655 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3195 transitions. Word has length 661 [2021-12-14 11:44:29,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:29,656 INFO L470 AbstractCegarLoop]: Abstraction has 2544 states and 3195 transitions. [2021-12-14 11:44:29,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:29,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3195 transitions. [2021-12-14 11:44:29,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2021-12-14 11:44:29,661 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:44:29,662 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 21, 21, 19, 19, 17, 17, 15, 15, 15, 15, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:29,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-14 11:44:29,662 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:44:29,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:44:29,662 INFO L85 PathProgramCache]: Analyzing trace with hash -372840571, now seen corresponding path program 1 times [2021-12-14 11:44:29,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:44:29,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714932752] [2021-12-14 11:44:29,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:29,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:44:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:29,739 INFO L134 CoverageAnalysis]: Checked inductivity of 6056 backedges. 3605 proven. 16 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2021-12-14 11:44:29,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:44:29,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714932752] [2021-12-14 11:44:29,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714932752] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 11:44:29,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761540968] [2021-12-14 11:44:29,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:44:29,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:44:29,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:44:29,741 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:44:29,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 11:44:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:44:29,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 11:44:29,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:44:30,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6056 backedges. 3605 proven. 16 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2021-12-14 11:44:30,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:44:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 6056 backedges. 3605 proven. 16 refuted. 0 times theorem prover too weak. 2435 trivial. 0 not checked. [2021-12-14 11:44:31,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761540968] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:44:31,388 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 11:44:31,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-12-14 11:44:31,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936259287] [2021-12-14 11:44:31,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 11:44:31,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 11:44:31,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:44:31,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 11:44:31,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-14 11:44:31,390 INFO L87 Difference]: Start difference. First operand 2544 states and 3195 transitions. Second operand has 8 states, 8 states have (on average 40.75) internal successors, (326), 8 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:31,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:44:31,618 INFO L93 Difference]: Finished difference Result 3638 states and 4573 transitions. [2021-12-14 11:44:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 11:44:31,618 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 40.75) internal successors, (326), 8 states have internal predecessors, (326), 0 states have call successors, (0), 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 723 [2021-12-14 11:44:31,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:44:31,619 INFO L225 Difference]: With dead ends: 3638 [2021-12-14 11:44:31,619 INFO L226 Difference]: Without dead ends: 0 [2021-12-14 11:44:31,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1452 GetRequests, 1444 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-14 11:44:31,621 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 74 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 11:44:31,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 872 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 11:44:31,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-14 11:44:31,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-14 11:44:31,622 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) [2021-12-14 11:44:31,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-14 11:44:31,622 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 723 [2021-12-14 11:44:31,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:44:31,622 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 11:44:31,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.75) internal successors, (326), 8 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:44:31,622 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-14 11:44:31,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-14 11:44:31,624 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-14 11:44:31,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-14 11:44:31,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:44:31,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-14 11:44:41,763 INFO L858 garLoopResultBuilder]: For program point L531(lines 531 535) no Hoare annotation was computed. [2021-12-14 11:44:41,763 INFO L858 garLoopResultBuilder]: For program point L531-2(lines 531 535) no Hoare annotation was computed. [2021-12-14 11:44:41,764 INFO L854 garLoopResultBuilder]: At program point L366(lines 342 384) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse2 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse3 (not (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse4 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse5 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse6 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse2 .cse3 .cse4 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse5 .cse6))) [2021-12-14 11:44:41,764 INFO L854 garLoopResultBuilder]: At program point L201(lines 197 562) the Hoare annotation is: (let ((.cse6 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse7 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse8 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8481))) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8657))) (.cse3 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672))) (.cse9 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse0 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse10 (not (= 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse11 (not (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse12 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8480))) (.cse4 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656))) (.cse1 (not (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|))) (.cse13 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse5 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0) .cse1) (and (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse2 .cse3 .cse0 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse3 .cse9 .cse0 .cse10 .cse11 .cse12 .cse4 .cse13 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse3 .cse9 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640) .cse0 .cse10 .cse11 .cse12 .cse4 .cse1 .cse13 .cse5))) [2021-12-14 11:44:41,764 INFO L854 garLoopResultBuilder]: At program point L168(lines 164 573) the Hoare annotation is: (let ((.cse0 (not (= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8481))) (.cse3 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse4 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse5 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8480))) (.cse6 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse7 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse3 .cse4 .cse5 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse6 .cse7))) [2021-12-14 11:44:41,764 INFO L854 garLoopResultBuilder]: At program point L135(lines 134 583) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8481))) (.cse3 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse4 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (.cse5 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) (.cse6 (not (= 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse7 (not (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse8 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8480))) (.cse9 (<= 8480 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse10 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 .cse2 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0) .cse10))) [2021-12-14 11:44:41,765 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 104) no Hoare annotation was computed. [2021-12-14 11:44:41,765 INFO L858 garLoopResultBuilder]: For program point L433(lines 433 435) no Hoare annotation was computed. [2021-12-14 11:44:41,765 INFO L854 garLoopResultBuilder]: At program point L400(lines 391 423) the Hoare annotation is: (let ((.cse0 (not (= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8481))) (.cse3 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse4 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse5 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8480))) (.cse6 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse7 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse3 .cse4 .cse5 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse6 .cse7))) [2021-12-14 11:44:41,765 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 303) no Hoare annotation was computed. [2021-12-14 11:44:41,765 INFO L858 garLoopResultBuilder]: For program point L301-2(lines 219 553) no Hoare annotation was computed. [2021-12-14 11:44:41,765 INFO L861 garLoopResultBuilder]: At program point L632(lines 623 634) the Hoare annotation is: true [2021-12-14 11:44:41,765 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 370) no Hoare annotation was computed. [2021-12-14 11:44:41,765 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 560) no Hoare annotation was computed. [2021-12-14 11:44:41,765 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 571) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L137(lines 137 582) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L600(lines 600 604) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L336(lines 336 340) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 272) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L336-2(lines 219 553) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 248) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L237-2(lines 219 553) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L403(lines 403 421) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 506) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 410) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 242) no Hoare annotation was computed. [2021-12-14 11:44:41,766 INFO L858 garLoopResultBuilder]: For program point L206(lines 206 559) no Hoare annotation was computed. [2021-12-14 11:44:41,767 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 570) no Hoare annotation was computed. [2021-12-14 11:44:41,767 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 581) no Hoare annotation was computed. [2021-12-14 11:44:41,767 INFO L854 garLoopResultBuilder]: At program point L207(lines 203 560) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (.cse2 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse3 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (.cse4 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672))) (or (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse0 .cse1 .cse2 .cse3 .cse4) (and (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse0 .cse1 .cse2 .cse4) (and .cse0 .cse1 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640) .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0) (not .cse3) .cse4))) [2021-12-14 11:44:41,767 INFO L854 garLoopResultBuilder]: At program point L174(lines 170 571) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse1 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse2 (not (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse3 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse4 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576))) (or (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse1 .cse2 .cse3 .cse4) (and .cse0 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse1 .cse2 .cse3 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse4))) [2021-12-14 11:44:41,767 INFO L858 garLoopResultBuilder]: For program point L472(lines 472 474) no Hoare annotation was computed. [2021-12-14 11:44:41,767 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 312) no Hoare annotation was computed. [2021-12-14 11:44:41,767 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2021-12-14 11:44:41,767 INFO L858 garLoopResultBuilder]: For program point L209(lines 209 558) no Hoare annotation was computed. [2021-12-14 11:44:41,767 INFO L858 garLoopResultBuilder]: For program point L176(lines 176 569) no Hoare annotation was computed. [2021-12-14 11:44:41,767 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 580) no Hoare annotation was computed. [2021-12-14 11:44:41,767 INFO L854 garLoopResultBuilder]: At program point L110-2(lines 110 609) the Hoare annotation is: (let ((.cse17 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|))) (let ((.cse25 (<= 8480 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse23 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672))) (.cse26 (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse20 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse21 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse24 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) (.cse16 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8657))) (.cse4 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640)) (.cse0 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse3 (not .cse17)) (.cse18 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse8 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse9 (< 8496 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse10 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse11 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (.cse12 (not (= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse13 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8481))) (.cse22 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse14 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8496)) (.cse15 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8480))) (.cse19 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 3)) (.cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0)) (.cse7 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (.cse5 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448)) (.cse27 (= 3 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse6 (<= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 8640 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) .cse4 .cse5 .cse6 .cse3) (and .cse4 .cse0 .cse1 .cse3) (and .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse12 .cse13 .cse14 .cse15 .cse6 .cse2) (and .cse16 .cse7 .cse0 .cse17 .cse18) (and .cse4 .cse19) (and .cse20 .cse21 .cse13 .cse22 .cse16 .cse23 .cse24 .cse15 .cse17 .cse25 .cse18) (and .cse20 .cse21 .cse13 .cse7 .cse24 .cse15 .cse25 .cse11) (and (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse26 .cse18) (and .cse7 .cse5 .cse9 .cse6 .cse10) (and .cse12 .cse13 .cse7 .cse14 .cse15 .cse6) (and .cse22 .cse16 .cse23 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) .cse0 .cse18) (and .cse22 .cse19) (and .cse26 .cse5 .cse27 .cse17 .cse6) (and .cse7 .cse19) (and .cse22 .cse5 .cse9 .cse17 .cse6 .cse10) (and .cse20 .cse21 .cse7 .cse24 .cse1 .cse8) (and .cse16 .cse4 .cse0 .cse2 .cse3 .cse18) (and .cse22 .cse8 .cse9 .cse17 .cse10 .cse11) (and .cse12 .cse13 .cse22 .cse14 .cse15 .cse17 .cse6) (and .cse19 .cse2) (and .cse7 .cse5 .cse27 .cse17 .cse6)))) [2021-12-14 11:44:41,767 INFO L858 garLoopResultBuilder]: For program point L441-1(lines 441 449) no Hoare annotation was computed. [2021-12-14 11:44:41,767 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 246) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L854 garLoopResultBuilder]: At program point L177(lines 176 569) the Hoare annotation is: (let ((.cse4 (< 8496 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse5 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse3 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (.cse0 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448)) (.cse6 (= 3 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse2 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|)) (.cse1 (<= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (or (and (<= 8640 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640) .cse0 .cse1 (not .cse2)) (and .cse3 .cse0 .cse4 .cse1 .cse5) (and (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse0 .cse6 .cse2 .cse1) (and (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse0 .cse4 .cse2 .cse1 .cse5) (and .cse3 .cse0 .cse6 .cse2 .cse1))) [2021-12-14 11:44:41,768 INFO L854 garLoopResultBuilder]: At program point L144(lines 137 582) the Hoare annotation is: (let ((.cse0 (not (= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8481))) (.cse2 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8496)) (.cse3 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8480))) (.cse4 (<= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0)) (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse2 .cse3 .cse4) (and .cse0 .cse1 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse2 .cse3 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse4))) [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 547) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 510) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 541 547) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 219 553) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 557) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 568) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 579) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 590) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L444(lines 444 447) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 383) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L854 garLoopResultBuilder]: At program point L213(lines 209 558) the Hoare annotation is: (let ((.cse0 (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse1 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 16384)) (.cse2 (not (= 12292 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse3 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|))) (or (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse1 .cse2 .cse3) (and .cse0 (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse1 .cse2) (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640) .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0) (not .cse3)))) [2021-12-14 11:44:41,768 INFO L854 garLoopResultBuilder]: At program point L114(lines 113 590) the Hoare annotation is: false [2021-12-14 11:44:41,768 INFO L861 garLoopResultBuilder]: At program point L610(lines 109 611) the Hoare annotation is: true [2021-12-14 11:44:41,768 INFO L858 garLoopResultBuilder]: For program point L544(lines 544 546) no Hoare annotation was computed. [2021-12-14 11:44:41,768 INFO L854 garLoopResultBuilder]: At program point L412(lines 403 421) the Hoare annotation is: (let ((.cse0 (not (= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8481))) (.cse3 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse4 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse5 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8480))) (.cse6 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse7 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse3 .cse4 .cse5 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse6 .cse7))) [2021-12-14 11:44:41,769 INFO L858 garLoopResultBuilder]: For program point L215(lines 215 556) no Hoare annotation was computed. [2021-12-14 11:44:41,769 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 567) no Hoare annotation was computed. [2021-12-14 11:44:41,769 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 578) no Hoare annotation was computed. [2021-12-14 11:44:41,769 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 589) no Hoare annotation was computed. [2021-12-14 11:44:41,769 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 382) no Hoare annotation was computed. [2021-12-14 11:44:41,769 INFO L858 garLoopResultBuilder]: For program point L348-1(lines 348 382) no Hoare annotation was computed. [2021-12-14 11:44:41,769 INFO L854 garLoopResultBuilder]: At program point L216(lines 215 556) the Hoare annotation is: (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) [2021-12-14 11:44:41,769 INFO L854 garLoopResultBuilder]: At program point L183(lines 179 568) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse2 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse3 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (.cse4 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) (.cse5 (not (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse6 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse7 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse2 .cse3 .cse4 .cse5 .cse6 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse7))) [2021-12-14 11:44:41,769 INFO L854 garLoopResultBuilder]: At program point L150(lines 146 579) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse2 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8481))) (.cse3 (not (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse4 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8480))) (.cse5 (<= 8480 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse6 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse7 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576))) (or (and .cse0 .cse1 .cse2 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse3 .cse4 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse7))) [2021-12-14 11:44:41,769 INFO L858 garLoopResultBuilder]: For program point L481(lines 481 483) no Hoare annotation was computed. [2021-12-14 11:44:41,769 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 417) no Hoare annotation was computed. [2021-12-14 11:44:41,769 INFO L858 garLoopResultBuilder]: For program point L349(lines 349 379) no Hoare annotation was computed. [2021-12-14 11:44:41,769 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-14 11:44:41,769 INFO L854 garLoopResultBuilder]: At program point L218(lines 217 556) the Hoare annotation is: (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) [2021-12-14 11:44:41,769 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 566) no Hoare annotation was computed. [2021-12-14 11:44:41,770 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 577) no Hoare annotation was computed. [2021-12-14 11:44:41,770 INFO L858 garLoopResultBuilder]: For program point L119(lines 119 588) no Hoare annotation was computed. [2021-12-14 11:44:41,770 INFO L858 garLoopResultBuilder]: For program point L615(lines 615 617) no Hoare annotation was computed. [2021-12-14 11:44:41,770 INFO L858 garLoopResultBuilder]: For program point L615-2(lines 615 617) no Hoare annotation was computed. [2021-12-14 11:44:41,770 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 519) no Hoare annotation was computed. [2021-12-14 11:44:41,770 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 287) no Hoare annotation was computed. [2021-12-14 11:44:41,770 INFO L858 garLoopResultBuilder]: For program point L285-2(lines 219 553) no Hoare annotation was computed. [2021-12-14 11:44:41,770 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 326) no Hoare annotation was computed. [2021-12-14 11:44:41,770 INFO L858 garLoopResultBuilder]: For program point L319-2(lines 319 326) no Hoare annotation was computed. [2021-12-14 11:44:41,770 INFO L858 garLoopResultBuilder]: For program point L254(lines 254 264) no Hoare annotation was computed. [2021-12-14 11:44:41,771 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 565) no Hoare annotation was computed. [2021-12-14 11:44:41,771 INFO L858 garLoopResultBuilder]: For program point L155(lines 155 576) no Hoare annotation was computed. [2021-12-14 11:44:41,771 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 587) no Hoare annotation was computed. [2021-12-14 11:44:41,771 INFO L858 garLoopResultBuilder]: For program point L354(lines 354 377) no Hoare annotation was computed. [2021-12-14 11:44:41,771 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 258) no Hoare annotation was computed. [2021-12-14 11:44:41,771 INFO L854 garLoopResultBuilder]: At program point L222(lines 116 589) the Hoare annotation is: false [2021-12-14 11:44:41,771 INFO L854 garLoopResultBuilder]: At program point L189(lines 185 566) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse2 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse3 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (.cse4 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) (.cse5 (not (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse6 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse7 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse2 .cse3 .cse4 .cse5 .cse6 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse7))) [2021-12-14 11:44:41,771 INFO L854 garLoopResultBuilder]: At program point L156(lines 152 577) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse2 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse3 (not (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse4 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse5 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse6 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse2 .cse3 .cse4 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse5 .cse6))) [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-14 11:44:41,772 INFO L861 garLoopResultBuilder]: At program point L620(lines 22 622) the Hoare annotation is: true [2021-12-14 11:44:41,772 INFO L854 garLoopResultBuilder]: At program point L554(lines 110 609) the Hoare annotation is: (let ((.cse13 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|))) (let ((.cse23 (<= 8480 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse20 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672))) (.cse24 (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse16 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse17 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse21 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse1 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) (.cse12 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8657))) (.cse4 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8640)) (.cse0 (<= 8640 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse3 (not .cse13)) (.cse14 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse8 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse9 (< 8496 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse10 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 8576)) (.cse11 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576)) (.cse25 (not (= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse18 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8481))) (.cse19 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|)) (.cse26 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8496)) (.cse22 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8480))) (.cse15 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 3)) (.cse2 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0)) (.cse7 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)) (.cse5 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448)) (.cse27 (= 3 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|)) (.cse6 (<= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 8640 |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1|) .cse4 .cse5 .cse6 .cse3) (and .cse4 .cse0 .cse1 .cse3) (and .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse12 .cse7 .cse0 .cse13 .cse14) (and .cse4 .cse15) (and .cse16 .cse17 .cse18 .cse19 .cse12 .cse20 .cse21 .cse22 .cse13 .cse23 .cse14) (and .cse16 .cse17 .cse18 .cse7 .cse21 .cse22 .cse23 .cse11) (and (<= 8672 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse24 .cse14) (and .cse7 .cse5 .cse9 .cse6 .cse10) (and .cse25 .cse18 .cse7 .cse26 .cse22 .cse6) (and .cse19 .cse12 .cse20 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) .cse0 .cse14) (and .cse19 .cse15) (and .cse24 .cse5 .cse27 .cse13 .cse6) (and .cse7 .cse15) (and .cse19 .cse5 .cse9 .cse13 .cse6 .cse10) (and .cse16 .cse17 .cse7 .cse21 .cse1 .cse8) (and .cse12 .cse4 .cse0 .cse2 .cse3 .cse14) (and .cse19 .cse8 .cse9 .cse13 .cse10 .cse11) (and .cse25 .cse18 .cse19 .cse26 .cse22 .cse13 .cse6) (and .cse15 .cse2) (and .cse7 .cse5 .cse27 .cse13 .cse6)))) [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point L455(lines 455 457) no Hoare annotation was computed. [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point L323(lines 323 325) no Hoare annotation was computed. [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point L191(lines 191 564) no Hoare annotation was computed. [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 575) no Hoare annotation was computed. [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point L125(lines 125 586) no Hoare annotation was computed. [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 361) no Hoare annotation was computed. [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point L357-2(lines 357 361) no Hoare annotation was computed. [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point L490(lines 490 492) no Hoare annotation was computed. [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 423) no Hoare annotation was computed. [2021-12-14 11:44:41,772 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 526) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L458(lines 458 467) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 398) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 229) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 563) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 574) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L227-2(lines 227 229) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 585) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 607) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L854 garLoopResultBuilder]: At program point L525(lines 83 621) the Hoare annotation is: false [2021-12-14 11:44:41,773 INFO L854 garLoopResultBuilder]: At program point L195(lines 191 564) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse2 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse3 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (.cse4 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640)) (.cse5 (not (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse6 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse7 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse2 .cse3 .cse4 .cse5 .cse6 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse7))) [2021-12-14 11:44:41,773 INFO L854 garLoopResultBuilder]: At program point L162(lines 158 575) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8561))) (.cse1 (not (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8545))) (.cse2 (not (= 8497 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse3 (not (= 8544 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse4 (< 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (.cse5 (not (= 8560 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (.cse6 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8576))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) .cse2 .cse3 .cse4 (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|) .cse5 .cse6))) [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 98) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L96-2(lines 93 99) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L592(lines 592 606) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L493-2(lines 493 497) no Hoare annotation was computed. [2021-12-14 11:44:41,773 INFO L858 garLoopResultBuilder]: For program point L593(lines 593 598) no Hoare annotation was computed. [2021-12-14 11:44:41,774 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 529) no Hoare annotation was computed. [2021-12-14 11:44:41,774 INFO L858 garLoopResultBuilder]: For program point L593-2(lines 592 606) no Hoare annotation was computed. [2021-12-14 11:44:41,774 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 562) no Hoare annotation was computed. [2021-12-14 11:44:41,774 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 573) no Hoare annotation was computed. [2021-12-14 11:44:41,774 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 584) no Hoare annotation was computed. [2021-12-14 11:44:41,774 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-14 11:44:41,774 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 619) no Hoare annotation was computed. [2021-12-14 11:44:41,774 INFO L858 garLoopResultBuilder]: For program point L462(lines 462 464) no Hoare annotation was computed. [2021-12-14 11:44:41,774 INFO L854 garLoopResultBuilder]: At program point L132(lines 128 585) the Hoare annotation is: false [2021-12-14 11:44:41,775 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 597) no Hoare annotation was computed. [2021-12-14 11:44:41,775 INFO L858 garLoopResultBuilder]: For program point L298(lines 298 304) no Hoare annotation was computed. [2021-12-14 11:44:41,775 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2021-12-14 11:44:41,775 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 373) no Hoare annotation was computed. [2021-12-14 11:44:41,775 INFO L858 garLoopResultBuilder]: For program point L200(lines 200 561) no Hoare annotation was computed. [2021-12-14 11:44:41,775 INFO L858 garLoopResultBuilder]: For program point L167(lines 167 572) no Hoare annotation was computed. [2021-12-14 11:44:41,775 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 583) no Hoare annotation was computed. [2021-12-14 11:44:41,775 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-12-14 11:44:41,775 INFO L858 garLoopResultBuilder]: For program point L101-1(lines 83 621) no Hoare annotation was computed. [2021-12-14 11:44:41,777 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:44:41,779 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 11:44:41,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:44:41 BoogieIcfgContainer [2021-12-14 11:44:41,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 11:44:41,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 11:44:41,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 11:44:41,804 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 11:44:41,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:44:16" (3/4) ... [2021-12-14 11:44:41,806 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-14 11:44:41,817 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-14 11:44:41,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-14 11:44:41,819 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-14 11:44:41,819 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-14 11:44:41,880 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 11:44:41,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 11:44:41,881 INFO L158 Benchmark]: Toolchain (without parser) took 26724.54ms. Allocated memory was 102.8MB in the beginning and 687.9MB in the end (delta: 585.1MB). Free memory was 76.0MB in the beginning and 407.9MB in the end (delta: -331.9MB). Peak memory consumption was 254.2MB. Max. memory is 16.1GB. [2021-12-14 11:44:41,881 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 11:44:41,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.74ms. Allocated memory is still 102.8MB. Free memory was 75.7MB in the beginning and 76.1MB in the end (delta: -408.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 11:44:41,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.93ms. Allocated memory is still 102.8MB. Free memory was 75.7MB in the beginning and 73.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 11:44:41,881 INFO L158 Benchmark]: Boogie Preprocessor took 47.80ms. Allocated memory is still 102.8MB. Free memory was 72.7MB in the beginning and 71.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 11:44:41,882 INFO L158 Benchmark]: RCFGBuilder took 620.15ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 71.0MB in the beginning and 110.9MB in the end (delta: -39.9MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2021-12-14 11:44:41,882 INFO L158 Benchmark]: TraceAbstraction took 25666.04ms. Allocated memory was 140.5MB in the beginning and 687.9MB in the end (delta: 547.4MB). Free memory was 110.9MB in the beginning and 419.4MB in the end (delta: -308.5MB). Peak memory consumption was 436.7MB. Max. memory is 16.1GB. [2021-12-14 11:44:41,882 INFO L158 Benchmark]: Witness Printer took 77.05ms. Allocated memory is still 687.9MB. Free memory was 419.4MB in the beginning and 407.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-14 11:44:41,883 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.74ms. Allocated memory is still 102.8MB. Free memory was 75.7MB in the beginning and 76.1MB in the end (delta: -408.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.93ms. Allocated memory is still 102.8MB. Free memory was 75.7MB in the beginning and 73.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.80ms. Allocated memory is still 102.8MB. Free memory was 72.7MB in the beginning and 71.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 620.15ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 71.0MB in the beginning and 110.9MB in the end (delta: -39.9MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * TraceAbstraction took 25666.04ms. Allocated memory was 140.5MB in the beginning and 687.9MB in the end (delta: 547.4MB). Free memory was 110.9MB in the beginning and 419.4MB in the end (delta: -308.5MB). Peak memory consumption was 436.7MB. Max. memory is 16.1GB. * Witness Printer took 77.05ms. Allocated memory is still 687.9MB. Free memory was 419.4MB in the beginning and 407.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. 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: 619]: 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, 141 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.6s, OverallIterations: 37, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4941 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4941 mSDsluCounter, 11931 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4565 mSDsCounter, 1100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4975 IncrementalHoareTripleChecker+Invalid, 6075 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1100 mSolverCounterUnsat, 7366 mSDtfsCounter, 4975 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4669 GetRequests, 4602 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5239occurred in iteration=26, InterpolantAutomatonStates: 127, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 37 MinimizatonAttempts, 8533 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 192 NumberOfFragments, 2160 HoareAnnotationTreeSize, 28 FomulaSimplifications, 46842 FormulaSimplificationTreeSizeReduction, 3.9s HoareSimplificationTime, 28 FomulaSimplificationsInter, 152697 FormulaSimplificationTreeSizeReductionInter, 6.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 11088 NumberOfCodeBlocks, 11088 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 12832 ConstructedInterpolants, 0 QuantifiedInterpolants, 16772 SizeOfPredicates, 4 NumberOfNonLiveVariables, 4555 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 48 InterpolantComputations, 33 PerfectInterpolantSequences, 54520/54748 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: 83]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: ((((((((!(8448 == s__state) && !(s__state == 8561)) && !(s__state == 8481)) && blastFlag == 1) && !(8497 == s__state)) && 8496 < s__state) && !(s__state == 8480)) && !(8560 == s__state)) && s__state <= 8576) || (((((((((!(8448 == s__state) && !(s__state == 8561)) && !(s__state == 8481)) && 2 == blastFlag) && !(8497 == s__state)) && 8496 < s__state) && !(s__state == 8480)) && 0 == s__hit) && !(8560 == s__state)) && s__state <= 8576) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((((((((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && !(8497 == s__state)) && !(s__state == 8640)) && s__s3__tmp__next_state___0 <= 8640) && s__state <= 8640) && !(8496 == s__state)) && !(8544 == s__state)) && !(s__state == 8480)) && 8480 <= s__state) && !(8560 == s__state)) || (((((((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && 2 == blastFlag) && !(8497 == s__state)) && !(s__state == 8640)) && s__state <= 8640) && !(8496 == s__state)) && !(8544 == s__state)) && !(s__state == 8480)) && 8480 <= s__state) && !(8560 == s__state))) || (((((((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && blastFlag == 1) && !(8497 == s__state)) && !(s__state == 8640)) && s__state <= 8640) && !(8496 == s__state)) && !(8544 == s__state)) && !(s__state == 8480)) && 8480 <= s__state) && !(8560 == s__state))) || (((((((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && !(8497 == s__state)) && !(s__state == 8640)) && s__state <= 8640) && !(8496 == s__state)) && !(8544 == s__state)) && !(s__state == 8480)) && 8480 <= s__state) && blastFlag == 0) && !(8560 == s__state)) - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: !(s__state == 8672) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: ((((((blastFlag == 1 && !(s__state == 8672)) && !(s__state == 8640)) && 8640 <= s__state) && 0 == s__hit) && s__state <= 8672) || ((((2 == blastFlag && !(s__state == 8672)) && !(s__state == 8640)) && 8640 <= s__state) && s__state <= 8672)) || ((((((!(s__state == 8672) && !(s__state == 8640)) && s__s3__tmp__next_state___0 <= 8640) && 8640 <= s__state) && blastFlag == 0) && !(0 == s__hit)) && s__state <= 8672) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: ((((((((!(s__state == 8561) && !(s__state == 8545)) && blastFlag == 1) && !(8497 == s__state)) && !(s__state == 8640)) && s__state <= 8640) && !(8544 == s__state)) && 8496 < s__state) && !(8560 == s__state)) || (((((((((!(s__state == 8561) && !(s__state == 8545)) && 2 == blastFlag) && !(8497 == s__state)) && !(s__state == 8640)) && s__state <= 8640) && !(8544 == s__state)) && 8496 < s__state) && 0 == s__hit) && !(8560 == s__state)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((((!(8448 == s__state) && !(s__state == 8481)) && s__state < 8496) && !(s__state == 8480)) && 8448 <= s__state) && blastFlag == 0) || (((((!(8448 == s__state) && !(s__state == 8481)) && blastFlag == 1) && s__state < 8496) && !(s__state == 8480)) && 8448 <= s__state)) || ((((((!(8448 == s__state) && !(s__state == 8481)) && 2 == blastFlag) && s__state < 8496) && !(s__state == 8480)) && 0 == s__hit) && 8448 <= s__state) - InvariantResult [Line: 391]: Loop Invariant Derived loop invariant: ((((((((!(8448 == s__state) && !(s__state == 8561)) && !(s__state == 8481)) && blastFlag == 1) && !(8497 == s__state)) && 8496 < s__state) && !(s__state == 8480)) && !(8560 == s__state)) && s__state <= 8576) || (((((((((!(8448 == s__state) && !(s__state == 8561)) && !(s__state == 8481)) && 2 == blastFlag) && !(8497 == s__state)) && 8496 < s__state) && !(s__state == 8480)) && 0 == s__hit) && !(8560 == s__state)) && s__state <= 8576) - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: !(s__state == 8672) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((8640 <= s__state && s__state <= 8640) && blastFlag == 0) && !(0 == s__hit)) || ((((8640 <= s__s3__tmp__next_state___0 && s__s3__tmp__next_state___0 <= 8640) && s__state <= 8448) && 8448 <= s__state) && !(0 == s__hit))) || (((s__s3__tmp__next_state___0 <= 8640 && 8640 <= s__state) && s__state <= 8640) && !(0 == s__hit))) || ((((blastFlag == 1 && 8496 < s__state) && 8496 < s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8576) && s__state <= 8576)) || (((((!(8448 == s__state) && !(s__state == 8481)) && s__state < 8496) && !(s__state == 8480)) && 8448 <= s__state) && blastFlag == 0)) || ((((!(s__state == 8657) && blastFlag == 1) && 8640 <= s__state) && 0 == s__hit) && s__state <= 8672)) || (s__s3__tmp__next_state___0 <= 8640 && s__state == 3)) || ((((((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && 2 == blastFlag) && !(s__state == 8657)) && !(s__state == 8672)) && !(8497 == s__state)) && !(s__state == 8480)) && 0 == s__hit) && 8480 <= s__state) && s__state <= 8672)) || (((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && blastFlag == 1) && !(8497 == s__state)) && !(s__state == 8480)) && 8480 <= s__state) && s__state <= 8576)) || ((8672 <= s__state && 3 == blastFlag) && s__state <= 8672)) || ((((blastFlag == 1 && s__state <= 8448) && 8496 < s__s3__tmp__next_state___0) && 8448 <= s__state) && s__s3__tmp__next_state___0 <= 8576)) || (((((!(8448 == s__state) && !(s__state == 8481)) && blastFlag == 1) && s__state < 8496) && !(s__state == 8480)) && 8448 <= s__state)) || (((((2 == blastFlag && !(s__state == 8657)) && !(s__state == 8672)) && !(s__state == 8640)) && 8640 <= s__state) && s__state <= 8672)) || (2 == blastFlag && s__state == 3)) || ((((3 == blastFlag && s__state <= 8448) && 3 == s__s3__tmp__next_state___0) && 0 == s__hit) && 8448 <= s__state)) || (blastFlag == 1 && s__state == 3)) || (((((2 == blastFlag && s__state <= 8448) && 8496 < s__s3__tmp__next_state___0) && 0 == s__hit) && 8448 <= s__state) && s__s3__tmp__next_state___0 <= 8576)) || (((((!(s__state == 8561) && !(s__state == 8545)) && blastFlag == 1) && !(8497 == s__state)) && s__state <= 8640) && 8496 < s__state)) || (((((!(s__state == 8657) && s__s3__tmp__next_state___0 <= 8640) && 8640 <= s__state) && blastFlag == 0) && !(0 == s__hit)) && s__state <= 8672)) || (((((2 == blastFlag && 8496 < s__state) && 8496 < s__s3__tmp__next_state___0) && 0 == s__hit) && s__s3__tmp__next_state___0 <= 8576) && s__state <= 8576)) || ((((((!(8448 == s__state) && !(s__state == 8481)) && 2 == blastFlag) && s__state < 8496) && !(s__state == 8480)) && 0 == s__hit) && 8448 <= s__state)) || (s__state == 3 && blastFlag == 0)) || ((((blastFlag == 1 && s__state <= 8448) && 3 == s__s3__tmp__next_state___0) && 0 == s__hit) && 8448 <= s__state) - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: (((((((!(s__state == 8561) && !(s__state == 8545)) && blastFlag == 1) && !(8497 == s__state)) && !(8544 == s__state)) && 8496 < s__state) && !(8560 == s__state)) && s__state <= 8576) || ((((((((!(s__state == 8561) && !(s__state == 8545)) && 2 == blastFlag) && !(8497 == s__state)) && !(8544 == s__state)) && 8496 < s__state) && 0 == s__hit) && !(8560 == s__state)) && s__state <= 8576) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((((((8640 <= s__s3__tmp__next_state___0 && s__s3__tmp__next_state___0 <= 8640) && s__state <= 8448) && 8448 <= s__state) && !(0 == s__hit)) || ((((blastFlag == 1 && s__state <= 8448) && 8496 < s__s3__tmp__next_state___0) && 8448 <= s__state) && s__s3__tmp__next_state___0 <= 8576)) || ((((3 == blastFlag && s__state <= 8448) && 3 == s__s3__tmp__next_state___0) && 0 == s__hit) && 8448 <= s__state)) || (((((2 == blastFlag && s__state <= 8448) && 8496 < s__s3__tmp__next_state___0) && 0 == s__hit) && 8448 <= s__state) && s__s3__tmp__next_state___0 <= 8576)) || ((((blastFlag == 1 && s__state <= 8448) && 3 == s__s3__tmp__next_state___0) && 0 == s__hit) && 8448 <= s__state) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((((((((!(s__state == 8561) && !(s__state == 8545)) && blastFlag == 1) && !(8497 == s__state)) && !(s__state == 8640)) && s__state <= 8640) && !(8544 == s__state)) && 8496 < s__state) && !(8560 == s__state)) || (((((((((!(s__state == 8561) && !(s__state == 8545)) && 2 == blastFlag) && !(8497 == s__state)) && !(s__state == 8640)) && s__state <= 8640) && !(8544 == s__state)) && 8496 < s__state) && 0 == s__hit) && !(8560 == s__state)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 403]: Loop Invariant Derived loop invariant: ((((((((!(8448 == s__state) && !(s__state == 8561)) && !(s__state == 8481)) && blastFlag == 1) && !(8497 == s__state)) && 8496 < s__state) && !(s__state == 8480)) && !(8560 == s__state)) && s__state <= 8576) || (((((((((!(8448 == s__state) && !(s__state == 8561)) && !(s__state == 8481)) && 2 == blastFlag) && !(8497 == s__state)) && 8496 < s__state) && !(s__state == 8480)) && 0 == s__hit) && !(8560 == s__state)) && s__state <= 8576) - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: (((((8672 <= s__state && blastFlag == 1) && s__state < 16384) && !(12292 == s__state)) && 0 == s__hit) || (((8672 <= s__state && 3 == blastFlag) && s__state < 16384) && !(12292 == s__state))) || (((((8672 <= s__state && s__s3__tmp__next_state___0 <= 8640) && s__state < 16384) && !(12292 == s__state)) && blastFlag == 0) && !(0 == s__hit)) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: (((((((!(s__state == 8561) && !(s__state == 8545)) && blastFlag == 1) && !(8497 == s__state)) && !(8544 == s__state)) && 8496 < s__state) && !(8560 == s__state)) && s__state <= 8576) || ((((((((!(s__state == 8561) && !(s__state == 8545)) && 2 == blastFlag) && !(8497 == s__state)) && !(8544 == s__state)) && 8496 < s__state) && 0 == s__hit) && !(8560 == s__state)) && s__state <= 8576) - InvariantResult [Line: 623]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (((((!(s__state == 8545) && blastFlag == 1) && !(8497 == s__state)) && !(8544 == s__state)) && 8496 < s__state) && s__state <= 8576) || ((((((!(s__state == 8545) && 2 == blastFlag) && !(8497 == s__state)) && !(8544 == s__state)) && 8496 < s__state) && 0 == s__hit) && s__state <= 8576) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((((((((!(s__state == 8561) && !(s__state == 8545)) && blastFlag == 1) && !(8497 == s__state)) && !(s__state == 8640)) && s__state <= 8640) && !(8544 == s__state)) && 8496 < s__state) && !(8560 == s__state)) || (((((((((!(s__state == 8561) && !(s__state == 8545)) && 2 == blastFlag) && !(8497 == s__state)) && !(s__state == 8640)) && s__state <= 8640) && !(8544 == s__state)) && 8496 < s__state) && 0 == s__hit) && !(8560 == s__state)) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && 2 == blastFlag) && !(8544 == s__state)) && !(s__state == 8480)) && 0 == s__hit) && 8480 <= s__state) && !(8560 == s__state)) && s__state <= 8576) || ((((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && blastFlag == 1) && !(8544 == s__state)) && !(s__state == 8480)) && 8480 <= s__state) && !(8560 == s__state)) && s__state <= 8576) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: (((((8640 <= s__state && s__state <= 8640) && blastFlag == 0) && !(0 == s__hit)) || (((((2 == blastFlag && !(s__state == 8657)) && !(s__state == 8672)) && 8640 <= s__state) && !(s__state == 8656)) && s__state <= 8672)) || (((((((((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && !(s__state == 8657)) && blastFlag == 1) && !(s__state == 8672)) && !(8497 == s__state)) && 8640 <= s__state) && !(8496 == s__state)) && !(8544 == s__state)) && !(s__state == 8480)) && !(s__state == 8656)) && !(8560 == s__state)) && s__state <= 8672)) || ((((((((((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && !(s__state == 8657)) && !(s__state == 8672)) && !(8497 == s__state)) && s__s3__tmp__next_state___0 <= 8640) && 8640 <= s__state) && !(8496 == s__state)) && !(8544 == s__state)) && !(s__state == 8480)) && !(s__state == 8656)) && !(0 == s__hit)) && !(8560 == s__state)) && s__state <= 8672) - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: (((((((!(s__state == 8561) && !(s__state == 8545)) && blastFlag == 1) && !(8497 == s__state)) && !(8544 == s__state)) && 8496 < s__state) && !(8560 == s__state)) && s__state <= 8576) || ((((((((!(s__state == 8561) && !(s__state == 8545)) && 2 == blastFlag) && !(8497 == s__state)) && !(8544 == s__state)) && 8496 < s__state) && 0 == s__hit) && !(8560 == s__state)) && s__state <= 8576) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((8640 <= s__state && s__state <= 8640) && blastFlag == 0) && !(0 == s__hit)) || ((((8640 <= s__s3__tmp__next_state___0 && s__s3__tmp__next_state___0 <= 8640) && s__state <= 8448) && 8448 <= s__state) && !(0 == s__hit))) || (((s__s3__tmp__next_state___0 <= 8640 && 8640 <= s__state) && s__state <= 8640) && !(0 == s__hit))) || ((((blastFlag == 1 && 8496 < s__state) && 8496 < s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 8576) && s__state <= 8576)) || ((((!(s__state == 8657) && blastFlag == 1) && 8640 <= s__state) && 0 == s__hit) && s__state <= 8672)) || (s__s3__tmp__next_state___0 <= 8640 && s__state == 3)) || ((((((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && 2 == blastFlag) && !(s__state == 8657)) && !(s__state == 8672)) && !(8497 == s__state)) && !(s__state == 8480)) && 0 == s__hit) && 8480 <= s__state) && s__state <= 8672)) || (((((((!(s__state == 8561) && !(s__state == 8545)) && !(s__state == 8481)) && blastFlag == 1) && !(8497 == s__state)) && !(s__state == 8480)) && 8480 <= s__state) && s__state <= 8576)) || ((8672 <= s__state && 3 == blastFlag) && s__state <= 8672)) || ((((blastFlag == 1 && s__state <= 8448) && 8496 < s__s3__tmp__next_state___0) && 8448 <= s__state) && s__s3__tmp__next_state___0 <= 8576)) || (((((!(8448 == s__state) && !(s__state == 8481)) && blastFlag == 1) && s__state < 8496) && !(s__state == 8480)) && 8448 <= s__state)) || (((((2 == blastFlag && !(s__state == 8657)) && !(s__state == 8672)) && !(s__state == 8640)) && 8640 <= s__state) && s__state <= 8672)) || (2 == blastFlag && s__state == 3)) || ((((3 == blastFlag && s__state <= 8448) && 3 == s__s3__tmp__next_state___0) && 0 == s__hit) && 8448 <= s__state)) || (blastFlag == 1 && s__state == 3)) || (((((2 == blastFlag && s__state <= 8448) && 8496 < s__s3__tmp__next_state___0) && 0 == s__hit) && 8448 <= s__state) && s__s3__tmp__next_state___0 <= 8576)) || (((((!(s__state == 8561) && !(s__state == 8545)) && blastFlag == 1) && !(8497 == s__state)) && s__state <= 8640) && 8496 < s__state)) || (((((!(s__state == 8657) && s__s3__tmp__next_state___0 <= 8640) && 8640 <= s__state) && blastFlag == 0) && !(0 == s__hit)) && s__state <= 8672)) || (((((2 == blastFlag && 8496 < s__state) && 8496 < s__s3__tmp__next_state___0) && 0 == s__hit) && s__s3__tmp__next_state___0 <= 8576) && s__state <= 8576)) || ((((((!(8448 == s__state) && !(s__state == 8481)) && 2 == blastFlag) && s__state < 8496) && !(s__state == 8480)) && 0 == s__hit) && 8448 <= s__state)) || (s__state == 3 && blastFlag == 0)) || ((((blastFlag == 1 && s__state <= 8448) && 3 == s__s3__tmp__next_state___0) && 0 == s__hit) && 8448 <= s__state) RESULT: Ultimate proved your program to be correct! [2021-12-14 11:44:41,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE