./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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_clnt_2.cil-2.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 b4872de39e95e4bc5ccbeb0f1761dba68e05980d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 03:13:22,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 03:13:22,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 03:13:22,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 03:13:22,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 03:13:22,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 03:13:22,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 03:13:22,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 03:13:22,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 03:13:22,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 03:13:22,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 03:13:22,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 03:13:22,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 03:13:22,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 03:13:22,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 03:13:22,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 03:13:22,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 03:13:22,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 03:13:22,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 03:13:22,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 03:13:22,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 03:13:22,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 03:13:22,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 03:13:22,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 03:13:22,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 03:13:22,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 03:13:22,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 03:13:22,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 03:13:22,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 03:13:22,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 03:13:22,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 03:13:22,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 03:13:22,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 03:13:22,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 03:13:22,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 03:13:22,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 03:13:22,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 03:13:22,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 03:13:22,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 03:13:22,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 03:13:22,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 03:13:22,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 03:13:22,587 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 03:13:22,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 03:13:22,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 03:13:22,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 03:13:22,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 03:13:22,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 03:13:22,588 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 03:13:22,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 03:13:22,588 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 03:13:22,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 03:13:22,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 03:13:22,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 03:13:22,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 03:13:22,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 03:13:22,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 03:13:22,589 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 03:13:22,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 03:13:22,589 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 03:13:22,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 03:13:22,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 03:13:22,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 03:13:22,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 03:13:22,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:13:22,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 03:13:22,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 03:13:22,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 03:13:22,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 03:13:22,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 03:13:22,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 03:13:22,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 03:13:22,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4872de39e95e4bc5ccbeb0f1761dba68e05980d [2021-08-29 03:13:22,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 03:13:22,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 03:13:22,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 03:13:22,843 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 03:13:22,844 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 03:13:22,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2021-08-29 03:13:22,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6278739c/3ea95da135d64a00b7696bbc09ddc5e2/FLAGd9db3a2b4 [2021-08-29 03:13:23,275 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 03:13:23,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2021-08-29 03:13:23,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6278739c/3ea95da135d64a00b7696bbc09ddc5e2/FLAGd9db3a2b4 [2021-08-29 03:13:23,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6278739c/3ea95da135d64a00b7696bbc09ddc5e2 [2021-08-29 03:13:23,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 03:13:23,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 03:13:23,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 03:13:23,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 03:13:23,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 03:13:23,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb22920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23, skipping insertion in model container [2021-08-29 03:13:23,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 03:13:23,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 03:13:23,499 WARN L228 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_clnt_2.cil-2.c[35349,35362] [2021-08-29 03:13:23,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:13:23,546 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 03:13:23,588 WARN L228 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_clnt_2.cil-2.c[35349,35362] [2021-08-29 03:13:23,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:13:23,598 INFO L208 MainTranslator]: Completed translation [2021-08-29 03:13:23,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23 WrapperNode [2021-08-29 03:13:23,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 03:13:23,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 03:13:23,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 03:13:23,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 03:13:23,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 03:13:23,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 03:13:23,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 03:13:23,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 03:13:23,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 03:13:23,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 03:13:23,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 03:13:23,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 03:13:23,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23" (1/1) ... [2021-08-29 03:13:23,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:13:23,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:13:23,702 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) [2021-08-29 03:13:23,768 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 [2021-08-29 03:13:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 03:13:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 03:13:23,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 03:13:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 03:13:23,895 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-29 03:13:24,123 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-08-29 03:13:24,124 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-08-29 03:13:24,131 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 03:13:24,131 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 03:13:24,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:13:24 BoogieIcfgContainer [2021-08-29 03:13:24,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 03:13:24,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 03:13:24,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 03:13:24,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 03:13:24,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:13:23" (1/3) ... [2021-08-29 03:13:24,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25855051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:13:24, skipping insertion in model container [2021-08-29 03:13:24,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:23" (2/3) ... [2021-08-29 03:13:24,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25855051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:13:24, skipping insertion in model container [2021-08-29 03:13:24,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:13:24" (3/3) ... [2021-08-29 03:13:24,138 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-2.c [2021-08-29 03:13:24,141 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 03:13:24,141 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 03:13:24,170 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 03:13:24,175 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-29 03:13:24,175 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 03:13:24,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 126 states have (on average 1.7142857142857142) internal successors, (216), 127 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:24,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 03:13:24,196 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:24,196 INFO L513 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] [2021-08-29 03:13:24,197 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:24,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:24,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2021-08-29 03:13:24,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:24,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383613344] [2021-08-29 03:13:24,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:24,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:24,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:13:24,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:24,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383613344] [2021-08-29 03:13:24,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383613344] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:24,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:24,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:24,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040524009] [2021-08-29 03:13:24,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:24,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:24,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:24,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:24,453 INFO L87 Difference]: Start difference. First operand has 128 states, 126 states have (on average 1.7142857142857142) internal successors, (216), 127 states have internal predecessors, (216), 0 states have call successors, (0), 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 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:24,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:24,843 INFO L93 Difference]: Finished difference Result 252 states and 427 transitions. [2021-08-29 03:13:24,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:24,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2021-08-29 03:13:24,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:24,850 INFO L225 Difference]: With dead ends: 252 [2021-08-29 03:13:24,850 INFO L226 Difference]: Without dead ends: 115 [2021-08-29 03:13:24,858 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:24,860 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 270.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.22ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 348.61ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:24,861 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 416 Unknown, 0 Unchecked, 3.22ms Time], IncrementalHoareTripleChecker [1 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 348.61ms Time] [2021-08-29 03:13:24,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-08-29 03:13:24,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-08-29 03:13:24,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 114 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:24,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2021-08-29 03:13:24,890 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2021-08-29 03:13:24,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:24,890 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2021-08-29 03:13:24,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:24,890 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2021-08-29 03:13:24,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-29 03:13:24,893 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:24,893 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-08-29 03:13:24,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 03:13:24,894 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:24,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:24,896 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2021-08-29 03:13:24,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:24,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301341934] [2021-08-29 03:13:24,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:24,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:24,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:13:24,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:24,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301341934] [2021-08-29 03:13:24,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301341934] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:24,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:24,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:24,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255111534] [2021-08-29 03:13:24,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:24,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:24,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:24,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:24,944 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:25,167 INFO L93 Difference]: Finished difference Result 239 states and 362 transitions. [2021-08-29 03:13:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:25,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-08-29 03:13:25,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:25,172 INFO L225 Difference]: With dead ends: 239 [2021-08-29 03:13:25,172 INFO L226 Difference]: Without dead ends: 134 [2021-08-29 03:13:25,176 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:25,177 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 146.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.35ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 196.29ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:25,177 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 345 Unknown, 0 Unchecked, 3.35ms Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 196.29ms Time] [2021-08-29 03:13:25,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-08-29 03:13:25,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2021-08-29 03:13:25,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.4883720930232558) internal successors, (192), 129 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2021-08-29 03:13:25,191 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2021-08-29 03:13:25,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:25,192 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2021-08-29 03:13:25,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,192 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2021-08-29 03:13:25,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-29 03:13:25,193 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:25,193 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:25,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 03:13:25,193 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:25,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:25,194 INFO L82 PathProgramCache]: Analyzing trace with hash 684962052, now seen corresponding path program 1 times [2021-08-29 03:13:25,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:25,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464612097] [2021-08-29 03:13:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:25,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:25,279 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-29 03:13:25,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:25,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464612097] [2021-08-29 03:13:25,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464612097] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:25,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:25,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:25,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686258375] [2021-08-29 03:13:25,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:25,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:25,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:25,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:25,284 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:25,455 INFO L93 Difference]: Finished difference Result 271 states and 406 transitions. [2021-08-29 03:13:25,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:25,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 51 [2021-08-29 03:13:25,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:25,462 INFO L225 Difference]: With dead ends: 271 [2021-08-29 03:13:25,462 INFO L226 Difference]: Without dead ends: 151 [2021-08-29 03:13:25,465 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:25,469 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.73ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 159.45ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:25,471 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 362 Unknown, 0 Unchecked, 1.73ms Time], IncrementalHoareTripleChecker [9 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 159.45ms Time] [2021-08-29 03:13:25,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-08-29 03:13:25,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2021-08-29 03:13:25,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.4657534246575343) internal successors, (214), 146 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2021-08-29 03:13:25,486 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2021-08-29 03:13:25,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:25,488 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2021-08-29 03:13:25,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,489 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2021-08-29 03:13:25,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-29 03:13:25,491 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:25,491 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:25,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 03:13:25,491 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:25,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:25,493 INFO L82 PathProgramCache]: Analyzing trace with hash -184561774, now seen corresponding path program 1 times [2021-08-29 03:13:25,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:25,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123409781] [2021-08-29 03:13:25,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:25,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-29 03:13:25,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:25,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123409781] [2021-08-29 03:13:25,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123409781] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:25,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:25,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:25,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630320142] [2021-08-29 03:13:25,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:25,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:25,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:25,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:25,546 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:25,755 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2021-08-29 03:13:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:25,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 68 [2021-08-29 03:13:25,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:25,756 INFO L225 Difference]: With dead ends: 335 [2021-08-29 03:13:25,757 INFO L226 Difference]: Without dead ends: 197 [2021-08-29 03:13:25,757 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:25,758 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 158.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.03ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 198.02ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:25,758 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 384 Unknown, 0 Unchecked, 1.03ms Time], IncrementalHoareTripleChecker [33 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 198.02ms Time] [2021-08-29 03:13:25,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-08-29 03:13:25,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2021-08-29 03:13:25,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.411764705882353) internal successors, (264), 187 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2021-08-29 03:13:25,764 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2021-08-29 03:13:25,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:25,764 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2021-08-29 03:13:25,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,764 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2021-08-29 03:13:25,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-08-29 03:13:25,766 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:25,766 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:25,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 03:13:25,766 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:25,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:25,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1990000108, now seen corresponding path program 1 times [2021-08-29 03:13:25,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:25,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653034373] [2021-08-29 03:13:25,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:25,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:25,799 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-29 03:13:25,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:25,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653034373] [2021-08-29 03:13:25,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653034373] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:25,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:25,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:25,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363089310] [2021-08-29 03:13:25,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:25,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:25,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:25,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:25,801 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:25,962 INFO L93 Difference]: Finished difference Result 390 states and 555 transitions. [2021-08-29 03:13:25,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:25,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 68 [2021-08-29 03:13:25,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:25,963 INFO L225 Difference]: With dead ends: 390 [2021-08-29 03:13:25,963 INFO L226 Difference]: Without dead ends: 212 [2021-08-29 03:13:25,963 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:25,964 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 151.32ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:25,964 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 371 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [11 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 151.32ms Time] [2021-08-29 03:13:25,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-08-29 03:13:25,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2021-08-29 03:13:25,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.3980582524271845) internal successors, (288), 206 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2021-08-29 03:13:25,976 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2021-08-29 03:13:25,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:25,978 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2021-08-29 03:13:25,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:25,978 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2021-08-29 03:13:25,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-29 03:13:25,982 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:25,982 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:25,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 03:13:25,982 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:25,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:25,983 INFO L82 PathProgramCache]: Analyzing trace with hash -843012112, now seen corresponding path program 1 times [2021-08-29 03:13:25,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:25,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024387203] [2021-08-29 03:13:25,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:25,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-08-29 03:13:26,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:26,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024387203] [2021-08-29 03:13:26,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024387203] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:26,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:26,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:26,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544603889] [2021-08-29 03:13:26,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:26,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:26,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:26,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,050 INFO L87 Difference]: Start difference. First operand 207 states and 288 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) [2021-08-29 03:13:26,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:26,228 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2021-08-29 03:13:26,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:26,228 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 85 [2021-08-29 03:13:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:26,229 INFO L225 Difference]: With dead ends: 428 [2021-08-29 03:13:26,229 INFO L226 Difference]: Without dead ends: 231 [2021-08-29 03:13:26,230 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,230 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 127.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.83ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 167.86ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:26,231 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 374 Unknown, 0 Unchecked, 0.83ms Time], IncrementalHoareTripleChecker [13 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 167.86ms Time] [2021-08-29 03:13:26,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-08-29 03:13:26,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2021-08-29 03:13:26,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.3832599118942732) internal successors, (314), 227 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2021-08-29 03:13:26,235 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2021-08-29 03:13:26,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:26,235 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-08-29 03:13:26,235 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) [2021-08-29 03:13:26,235 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2021-08-29 03:13:26,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-08-29 03:13:26,236 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:26,236 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:26,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 03:13:26,236 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:26,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:26,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1725839848, now seen corresponding path program 1 times [2021-08-29 03:13:26,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:26,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595026111] [2021-08-29 03:13:26,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:26,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:26,264 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-08-29 03:13:26,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:26,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595026111] [2021-08-29 03:13:26,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595026111] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:26,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:26,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:26,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239609273] [2021-08-29 03:13:26,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:26,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:26,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,265 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:26,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:26,487 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2021-08-29 03:13:26,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:26,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 [2021-08-29 03:13:26,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:26,489 INFO L225 Difference]: With dead ends: 661 [2021-08-29 03:13:26,489 INFO L226 Difference]: Without dead ends: 443 [2021-08-29 03:13:26,490 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.20ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,490 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 125 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.07ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 206.49ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:26,490 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 0 Invalid, 386 Unknown, 0 Unchecked, 1.07ms Time], IncrementalHoareTripleChecker [5 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 206.49ms Time] [2021-08-29 03:13:26,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-08-29 03:13:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2021-08-29 03:13:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 1.3710407239819005) internal successors, (606), 442 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:26,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 606 transitions. [2021-08-29 03:13:26,498 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 606 transitions. Word has length 105 [2021-08-29 03:13:26,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:26,498 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 606 transitions. [2021-08-29 03:13:26,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:26,498 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 606 transitions. [2021-08-29 03:13:26,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-08-29 03:13:26,499 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:26,499 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:26,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 03:13:26,499 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:26,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:26,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1889855194, now seen corresponding path program 1 times [2021-08-29 03:13:26,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:26,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380671400] [2021-08-29 03:13:26,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:26,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-08-29 03:13:26,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:26,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380671400] [2021-08-29 03:13:26,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380671400] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:26,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:26,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:26,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21551227] [2021-08-29 03:13:26,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:26,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:26,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:26,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,539 INFO L87 Difference]: Start difference. First operand 443 states and 606 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) [2021-08-29 03:13:26,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:26,696 INFO L93 Difference]: Finished difference Result 897 states and 1226 transitions. [2021-08-29 03:13:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:26,697 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 105 [2021-08-29 03:13:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:26,698 INFO L225 Difference]: With dead ends: 897 [2021-08-29 03:13:26,698 INFO L226 Difference]: Without dead ends: 464 [2021-08-29 03:13:26,699 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,702 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.66ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.61ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:26,703 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 356 Unknown, 0 Unchecked, 0.66ms Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 145.61ms Time] [2021-08-29 03:13:26,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-08-29 03:13:26,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2021-08-29 03:13:26,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 463 states have (on average 1.367170626349892) internal successors, (633), 463 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:26,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 633 transitions. [2021-08-29 03:13:26,710 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 633 transitions. Word has length 105 [2021-08-29 03:13:26,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:26,710 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 633 transitions. [2021-08-29 03:13:26,710 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) [2021-08-29 03:13:26,710 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 633 transitions. [2021-08-29 03:13:26,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-08-29 03:13:26,711 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:26,711 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:26,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 03:13:26,711 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:26,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:26,712 INFO L82 PathProgramCache]: Analyzing trace with hash -810746188, now seen corresponding path program 1 times [2021-08-29 03:13:26,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:26,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332362868] [2021-08-29 03:13:26,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:26,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:26,734 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-08-29 03:13:26,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:26,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332362868] [2021-08-29 03:13:26,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332362868] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:26,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:26,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:26,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442887523] [2021-08-29 03:13:26,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:26,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:26,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:26,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,736 INFO L87 Difference]: Start difference. First operand 464 states and 633 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:26,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:26,894 INFO L93 Difference]: Finished difference Result 945 states and 1287 transitions. [2021-08-29 03:13:26,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:26,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 [2021-08-29 03:13:26,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:26,896 INFO L225 Difference]: With dead ends: 945 [2021-08-29 03:13:26,896 INFO L226 Difference]: Without dead ends: 491 [2021-08-29 03:13:26,897 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,898 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.14ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:26,898 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 328 Unknown, 0 Unchecked, 0.68ms Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 146.14ms Time] [2021-08-29 03:13:26,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-08-29 03:13:26,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2021-08-29 03:13:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.3612244897959183) internal successors, (667), 490 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 667 transitions. [2021-08-29 03:13:26,906 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 667 transitions. Word has length 106 [2021-08-29 03:13:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:26,906 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 667 transitions. [2021-08-29 03:13:26,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:26,906 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 667 transitions. [2021-08-29 03:13:26,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-08-29 03:13:26,907 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:26,907 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:26,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 03:13:26,907 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:26,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:26,908 INFO L82 PathProgramCache]: Analyzing trace with hash 625791090, now seen corresponding path program 1 times [2021-08-29 03:13:26,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:26,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529397996] [2021-08-29 03:13:26,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:26,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:26,952 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-08-29 03:13:26,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:26,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529397996] [2021-08-29 03:13:26,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529397996] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:26,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:26,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:26,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174465889] [2021-08-29 03:13:26,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:26,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:26,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:26,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,953 INFO L87 Difference]: Start difference. First operand 491 states and 667 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) [2021-08-29 03:13:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:27,170 INFO L93 Difference]: Finished difference Result 709 states and 967 transitions. [2021-08-29 03:13:27,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:27,170 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 107 [2021-08-29 03:13:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:27,172 INFO L225 Difference]: With dead ends: 709 [2021-08-29 03:13:27,172 INFO L226 Difference]: Without dead ends: 707 [2021-08-29 03:13:27,172 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,173 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 139 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 156.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.80ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 202.51ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:27,173 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 0 Invalid, 331 Unknown, 0 Unchecked, 0.80ms Time], IncrementalHoareTripleChecker [7 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 202.51ms Time] [2021-08-29 03:13:27,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-08-29 03:13:27,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2021-08-29 03:13:27,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 706 states have (on average 1.36685552407932) internal successors, (965), 706 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:27,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 965 transitions. [2021-08-29 03:13:27,186 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 965 transitions. Word has length 107 [2021-08-29 03:13:27,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:27,186 INFO L470 AbstractCegarLoop]: Abstraction has 707 states and 965 transitions. [2021-08-29 03:13:27,186 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) [2021-08-29 03:13:27,186 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 965 transitions. [2021-08-29 03:13:27,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-08-29 03:13:27,187 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:27,188 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 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] [2021-08-29 03:13:27,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 03:13:27,188 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:27,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:27,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1290635395, now seen corresponding path program 1 times [2021-08-29 03:13:27,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:27,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727293280] [2021-08-29 03:13:27,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:27,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:27,226 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-08-29 03:13:27,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:27,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727293280] [2021-08-29 03:13:27,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727293280] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:27,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:27,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:27,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785430013] [2021-08-29 03:13:27,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:27,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:27,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:27,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,227 INFO L87 Difference]: Start difference. First operand 707 states and 965 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:27,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:27,423 INFO L93 Difference]: Finished difference Result 1530 states and 2149 transitions. [2021-08-29 03:13:27,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:27,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2021-08-29 03:13:27,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:27,426 INFO L225 Difference]: With dead ends: 1530 [2021-08-29 03:13:27,426 INFO L226 Difference]: Without dead ends: 857 [2021-08-29 03:13:27,427 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.20ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,427 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 97 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.84ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181.10ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:27,427 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 0 Invalid, 349 Unknown, 0 Unchecked, 0.84ms Time], IncrementalHoareTripleChecker [43 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 181.10ms Time] [2021-08-29 03:13:27,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2021-08-29 03:13:27,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 824. [2021-08-29 03:13:27,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 823 states have (on average 1.402187120291616) internal successors, (1154), 823 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:27,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1154 transitions. [2021-08-29 03:13:27,440 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1154 transitions. Word has length 176 [2021-08-29 03:13:27,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:27,440 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1154 transitions. [2021-08-29 03:13:27,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:27,441 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1154 transitions. [2021-08-29 03:13:27,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-08-29 03:13:27,442 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:27,442 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:27,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 03:13:27,443 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:27,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:27,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1154586908, now seen corresponding path program 2 times [2021-08-29 03:13:27,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:27,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186509400] [2021-08-29 03:13:27,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:27,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-08-29 03:13:27,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:27,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186509400] [2021-08-29 03:13:27,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186509400] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:27,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:27,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:27,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057016056] [2021-08-29 03:13:27,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:27,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:27,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:27,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,480 INFO L87 Difference]: Start difference. First operand 824 states and 1154 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:27,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:27,681 INFO L93 Difference]: Finished difference Result 1892 states and 2730 transitions. [2021-08-29 03:13:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:27,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 189 [2021-08-29 03:13:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:27,684 INFO L225 Difference]: With dead ends: 1892 [2021-08-29 03:13:27,685 INFO L226 Difference]: Without dead ends: 1054 [2021-08-29 03:13:27,686 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,686 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 96 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 142.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.87ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 182.67ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:27,686 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 0 Invalid, 356 Unknown, 0 Unchecked, 0.87ms Time], IncrementalHoareTripleChecker [41 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 182.67ms Time] [2021-08-29 03:13:27,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2021-08-29 03:13:27,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1013. [2021-08-29 03:13:27,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1012 states have (on average 1.3893280632411067) internal successors, (1406), 1012 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:27,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1406 transitions. [2021-08-29 03:13:27,704 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1406 transitions. Word has length 189 [2021-08-29 03:13:27,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:27,704 INFO L470 AbstractCegarLoop]: Abstraction has 1013 states and 1406 transitions. [2021-08-29 03:13:27,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:27,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1406 transitions. [2021-08-29 03:13:27,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-08-29 03:13:27,706 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:27,706 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:27,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 03:13:27,707 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:27,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:27,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1143144718, now seen corresponding path program 1 times [2021-08-29 03:13:27,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:27,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214250200] [2021-08-29 03:13:27,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:27,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:27,739 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-08-29 03:13:27,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:27,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214250200] [2021-08-29 03:13:27,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214250200] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:27,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:27,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:27,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774519637] [2021-08-29 03:13:27,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:27,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:27,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:27,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,741 INFO L87 Difference]: Start difference. First operand 1013 states and 1406 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:27,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:27,938 INFO L93 Difference]: Finished difference Result 2148 states and 3007 transitions. [2021-08-29 03:13:27,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:27,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-08-29 03:13:27,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:27,942 INFO L225 Difference]: With dead ends: 2148 [2021-08-29 03:13:27,942 INFO L226 Difference]: Without dead ends: 1127 [2021-08-29 03:13:27,942 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,943 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 99 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.89ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 174.01ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:27,943 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 0 Invalid, 352 Unknown, 0 Unchecked, 0.89ms Time], IncrementalHoareTripleChecker [42 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 174.01ms Time] [2021-08-29 03:13:27,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2021-08-29 03:13:27,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1088. [2021-08-29 03:13:27,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1087 states have (on average 1.3817847286108556) internal successors, (1502), 1087 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:27,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1502 transitions. [2021-08-29 03:13:27,959 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1502 transitions. Word has length 210 [2021-08-29 03:13:27,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:27,960 INFO L470 AbstractCegarLoop]: Abstraction has 1088 states and 1502 transitions. [2021-08-29 03:13:27,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:27,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1502 transitions. [2021-08-29 03:13:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-08-29 03:13:27,962 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:27,962 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:27,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-29 03:13:27,962 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:27,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:27,963 INFO L82 PathProgramCache]: Analyzing trace with hash 455987487, now seen corresponding path program 1 times [2021-08-29 03:13:27,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:27,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741883697] [2021-08-29 03:13:27,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:27,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-08-29 03:13:27,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:27,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741883697] [2021-08-29 03:13:27,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741883697] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:27,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:27,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:27,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178444945] [2021-08-29 03:13:27,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:27,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:27,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:27,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,996 INFO L87 Difference]: Start difference. First operand 1088 states and 1502 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:28,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:28,219 INFO L93 Difference]: Finished difference Result 2298 states and 3196 transitions. [2021-08-29 03:13:28,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:28,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-08-29 03:13:28,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:28,223 INFO L225 Difference]: With dead ends: 2298 [2021-08-29 03:13:28,223 INFO L226 Difference]: Without dead ends: 1208 [2021-08-29 03:13:28,225 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:28,226 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 100 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 159.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.90ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 202.94ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:28,226 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 0 Invalid, 350 Unknown, 0 Unchecked, 0.90ms Time], IncrementalHoareTripleChecker [43 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 202.94ms Time] [2021-08-29 03:13:28,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2021-08-29 03:13:28,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1172. [2021-08-29 03:13:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1171 states have (on average 1.3774551665243382) internal successors, (1613), 1171 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1613 transitions. [2021-08-29 03:13:28,251 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1613 transitions. Word has length 234 [2021-08-29 03:13:28,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:28,251 INFO L470 AbstractCegarLoop]: Abstraction has 1172 states and 1613 transitions. [2021-08-29 03:13:28,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1613 transitions. [2021-08-29 03:13:28,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-08-29 03:13:28,253 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:28,253 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:28,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-29 03:13:28,254 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:28,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:28,254 INFO L82 PathProgramCache]: Analyzing trace with hash 574428961, now seen corresponding path program 1 times [2021-08-29 03:13:28,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:28,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818470879] [2021-08-29 03:13:28,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:28,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:28,286 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-08-29 03:13:28,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:28,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818470879] [2021-08-29 03:13:28,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818470879] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:28,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:28,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:28,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617520482] [2021-08-29 03:13:28,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:28,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:28,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:28,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:28,288 INFO L87 Difference]: Start difference. First operand 1172 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:28,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:28,491 INFO L93 Difference]: Finished difference Result 2466 states and 3421 transitions. [2021-08-29 03:13:28,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:28,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-08-29 03:13:28,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:28,495 INFO L225 Difference]: With dead ends: 2466 [2021-08-29 03:13:28,495 INFO L226 Difference]: Without dead ends: 1304 [2021-08-29 03:13:28,497 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:28,498 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 102 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 139.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.92ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181.62ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:28,498 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 0 Invalid, 348 Unknown, 0 Unchecked, 0.92ms Time], IncrementalHoareTripleChecker [45 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 181.62ms Time] [2021-08-29 03:13:28,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2021-08-29 03:13:28,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1265. [2021-08-29 03:13:28,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 1.3805379746835442) internal successors, (1745), 1264 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:28,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1745 transitions. [2021-08-29 03:13:28,520 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1745 transitions. Word has length 234 [2021-08-29 03:13:28,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:28,520 INFO L470 AbstractCegarLoop]: Abstraction has 1265 states and 1745 transitions. [2021-08-29 03:13:28,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:28,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1745 transitions. [2021-08-29 03:13:28,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-08-29 03:13:28,522 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:28,523 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:28,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-29 03:13:28,523 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:28,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:28,523 INFO L82 PathProgramCache]: Analyzing trace with hash 172133823, now seen corresponding path program 1 times [2021-08-29 03:13:28,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:28,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289936449] [2021-08-29 03:13:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:28,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:28,567 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2021-08-29 03:13:28,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:28,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289936449] [2021-08-29 03:13:28,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289936449] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:28,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:28,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:28,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604242991] [2021-08-29 03:13:28,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:28,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:28,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:28,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:28,569 INFO L87 Difference]: Start difference. First operand 1265 states and 1745 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) [2021-08-29 03:13:28,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:28,837 INFO L93 Difference]: Finished difference Result 3718 states and 5136 transitions. [2021-08-29 03:13:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:28,837 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 264 [2021-08-29 03:13:28,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:28,844 INFO L225 Difference]: With dead ends: 3718 [2021-08-29 03:13:28,844 INFO L226 Difference]: Without dead ends: 2490 [2021-08-29 03:13:28,845 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:28,845 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 127 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 186.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 240.13ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:28,845 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 0 Invalid, 490 Unknown, 0 Unchecked, 0.94ms Time], IncrementalHoareTripleChecker [0 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 240.13ms Time] [2021-08-29 03:13:28,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2021-08-29 03:13:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2488. [2021-08-29 03:13:28,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2487 states have (on average 1.3811821471652594) internal successors, (3435), 2487 states have internal predecessors, (3435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3435 transitions. [2021-08-29 03:13:28,900 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3435 transitions. Word has length 264 [2021-08-29 03:13:28,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:28,901 INFO L470 AbstractCegarLoop]: Abstraction has 2488 states and 3435 transitions. [2021-08-29 03:13:28,901 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) [2021-08-29 03:13:28,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3435 transitions. [2021-08-29 03:13:28,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-08-29 03:13:28,906 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:28,906 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:28,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-29 03:13:28,906 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:28,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:28,907 INFO L82 PathProgramCache]: Analyzing trace with hash 290575297, now seen corresponding path program 1 times [2021-08-29 03:13:28,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:28,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185966492] [2021-08-29 03:13:28,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:28,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:28,939 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-08-29 03:13:28,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:28,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185966492] [2021-08-29 03:13:28,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185966492] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:28,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:28,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:28,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477457465] [2021-08-29 03:13:28,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:28,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:28,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:28,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:28,942 INFO L87 Difference]: Start difference. First operand 2488 states and 3435 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:29,121 INFO L93 Difference]: Finished difference Result 5251 states and 7296 transitions. [2021-08-29 03:13:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:29,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 264 [2021-08-29 03:13:29,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:29,129 INFO L225 Difference]: With dead ends: 5251 [2021-08-29 03:13:29,129 INFO L226 Difference]: Without dead ends: 2770 [2021-08-29 03:13:29,132 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.05ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:29,132 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 117 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.79ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 150.40ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:29,132 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 0 Invalid, 330 Unknown, 0 Unchecked, 0.79ms Time], IncrementalHoareTripleChecker [49 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 150.40ms Time] [2021-08-29 03:13:29,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2021-08-29 03:13:29,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2698. [2021-08-29 03:13:29,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 2697 states have (on average 1.389321468298109) internal successors, (3747), 2697 states have internal predecessors, (3747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3747 transitions. [2021-08-29 03:13:29,186 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3747 transitions. Word has length 264 [2021-08-29 03:13:29,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:29,188 INFO L470 AbstractCegarLoop]: Abstraction has 2698 states and 3747 transitions. [2021-08-29 03:13:29,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3747 transitions. [2021-08-29 03:13:29,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-08-29 03:13:29,192 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:29,193 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:29,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-29 03:13:29,193 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:29,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:29,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1239310138, now seen corresponding path program 1 times [2021-08-29 03:13:29,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:29,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228070105] [2021-08-29 03:13:29,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:29,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:29,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-08-29 03:13:29,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:29,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228070105] [2021-08-29 03:13:29,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228070105] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:29,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:29,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:29,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915092393] [2021-08-29 03:13:29,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:29,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:29,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:29,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:29,234 INFO L87 Difference]: Start difference. First operand 2698 states and 3747 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:29,420 INFO L93 Difference]: Finished difference Result 5443 states and 7548 transitions. [2021-08-29 03:13:29,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:29,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 299 [2021-08-29 03:13:29,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:29,427 INFO L225 Difference]: With dead ends: 5443 [2021-08-29 03:13:29,427 INFO L226 Difference]: Without dead ends: 2764 [2021-08-29 03:13:29,430 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:29,430 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 122 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.85ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 153.04ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:29,430 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 0 Invalid, 324 Unknown, 0 Unchecked, 0.85ms Time], IncrementalHoareTripleChecker [51 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 153.04ms Time] [2021-08-29 03:13:29,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2021-08-29 03:13:29,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2692. [2021-08-29 03:13:29,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2691 states have (on average 1.379041248606466) internal successors, (3711), 2691 states have internal predecessors, (3711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3711 transitions. [2021-08-29 03:13:29,481 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3711 transitions. Word has length 299 [2021-08-29 03:13:29,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:29,481 INFO L470 AbstractCegarLoop]: Abstraction has 2692 states and 3711 transitions. [2021-08-29 03:13:29,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3711 transitions. [2021-08-29 03:13:29,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-08-29 03:13:29,486 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:29,486 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:29,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-29 03:13:29,486 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:29,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:29,486 INFO L82 PathProgramCache]: Analyzing trace with hash 918915254, now seen corresponding path program 1 times [2021-08-29 03:13:29,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:29,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945204593] [2021-08-29 03:13:29,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:29,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:29,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 663 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-08-29 03:13:29,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:29,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945204593] [2021-08-29 03:13:29,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945204593] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:29,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:29,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:29,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229677121] [2021-08-29 03:13:29,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:29,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:29,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:29,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:29,529 INFO L87 Difference]: Start difference. First operand 2692 states and 3711 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:29,753 INFO L93 Difference]: Finished difference Result 5407 states and 7446 transitions. [2021-08-29 03:13:29,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:29,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 322 [2021-08-29 03:13:29,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:29,761 INFO L225 Difference]: With dead ends: 5407 [2021-08-29 03:13:29,761 INFO L226 Difference]: Without dead ends: 2752 [2021-08-29 03:13:29,764 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:29,764 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 55 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 155.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.83ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 196.33ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:29,764 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 0 Invalid, 383 Unknown, 0 Unchecked, 0.83ms Time], IncrementalHoareTripleChecker [15 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 196.33ms Time] [2021-08-29 03:13:29,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2021-08-29 03:13:29,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2692. [2021-08-29 03:13:29,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2691 states have (on average 1.358974358974359) internal successors, (3657), 2691 states have internal predecessors, (3657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3657 transitions. [2021-08-29 03:13:29,809 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3657 transitions. Word has length 322 [2021-08-29 03:13:29,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:29,809 INFO L470 AbstractCegarLoop]: Abstraction has 2692 states and 3657 transitions. [2021-08-29 03:13:29,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3657 transitions. [2021-08-29 03:13:29,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-08-29 03:13:29,814 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:29,814 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:29,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-29 03:13:29,814 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:29,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:29,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1665023372, now seen corresponding path program 1 times [2021-08-29 03:13:29,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:29,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518668321] [2021-08-29 03:13:29,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:29,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:29,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-29 03:13:29,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:29,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518668321] [2021-08-29 03:13:29,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518668321] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:29,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:29,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:29,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252193838] [2021-08-29 03:13:29,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:29,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:29,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:29,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:29,872 INFO L87 Difference]: Start difference. First operand 2692 states and 3657 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:30,067 INFO L93 Difference]: Finished difference Result 5653 states and 7626 transitions. [2021-08-29 03:13:30,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:30,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 336 [2021-08-29 03:13:30,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:30,075 INFO L225 Difference]: With dead ends: 5653 [2021-08-29 03:13:30,075 INFO L226 Difference]: Without dead ends: 2998 [2021-08-29 03:13:30,078 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:30,079 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 130 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.82ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.38ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:30,079 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 0 Invalid, 294 Unknown, 0 Unchecked, 0.82ms Time], IncrementalHoareTripleChecker [48 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 162.38ms Time] [2021-08-29 03:13:30,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2021-08-29 03:13:30,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2782. [2021-08-29 03:13:30,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2781 states have (on average 1.3581445523193096) internal successors, (3777), 2781 states have internal predecessors, (3777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3777 transitions. [2021-08-29 03:13:30,131 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3777 transitions. Word has length 336 [2021-08-29 03:13:30,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:30,131 INFO L470 AbstractCegarLoop]: Abstraction has 2782 states and 3777 transitions. [2021-08-29 03:13:30,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3777 transitions. [2021-08-29 03:13:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-08-29 03:13:30,136 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:30,136 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:30,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-29 03:13:30,137 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:30,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:30,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1597112402, now seen corresponding path program 1 times [2021-08-29 03:13:30,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:30,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075439535] [2021-08-29 03:13:30,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:30,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:30,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2021-08-29 03:13:30,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:30,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075439535] [2021-08-29 03:13:30,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075439535] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:30,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:30,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:30,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658314200] [2021-08-29 03:13:30,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:30,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:30,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:30,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:30,176 INFO L87 Difference]: Start difference. First operand 2782 states and 3777 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:30,441 INFO L93 Difference]: Finished difference Result 7882 states and 10755 transitions. [2021-08-29 03:13:30,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:30,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2021-08-29 03:13:30,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:30,455 INFO L225 Difference]: With dead ends: 7882 [2021-08-29 03:13:30,455 INFO L226 Difference]: Without dead ends: 5137 [2021-08-29 03:13:30,458 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:30,459 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 84 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 179.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.88ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 223.88ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:30,459 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 0 Invalid, 456 Unknown, 0 Unchecked, 0.88ms Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 223.88ms Time] [2021-08-29 03:13:30,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2021-08-29 03:13:30,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5135. [2021-08-29 03:13:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 1.36482275029217) internal successors, (7007), 5134 states have internal predecessors, (7007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 7007 transitions. [2021-08-29 03:13:30,535 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 7007 transitions. Word has length 337 [2021-08-29 03:13:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:30,536 INFO L470 AbstractCegarLoop]: Abstraction has 5135 states and 7007 transitions. [2021-08-29 03:13:30,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 7007 transitions. [2021-08-29 03:13:30,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-08-29 03:13:30,543 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:30,543 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:30,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-29 03:13:30,543 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:30,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:30,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1354743787, now seen corresponding path program 1 times [2021-08-29 03:13:30,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:30,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265426629] [2021-08-29 03:13:30,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:30,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:30,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-08-29 03:13:30,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:30,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265426629] [2021-08-29 03:13:30,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265426629] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 03:13:30,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323400174] [2021-08-29 03:13:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:30,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 03:13:30,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:13:30,606 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) [2021-08-29 03:13:30,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 03:13:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:30,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 03:13:30,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:13:31,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-08-29 03:13:31,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:13:31,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-08-29 03:13:31,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323400174] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 03:13:31,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 03:13:31,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-08-29 03:13:31,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077372832] [2021-08-29 03:13:31,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:13:31,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:31,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:13:31,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:13:31,686 INFO L87 Difference]: Start difference. First operand 5135 states and 7007 transitions. Second operand has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:32,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:32,214 INFO L93 Difference]: Finished difference Result 10227 states and 13933 transitions. [2021-08-29 03:13:32,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 03:13:32,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 0 states have call successors, (0), 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 361 [2021-08-29 03:13:32,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:32,226 INFO L225 Difference]: With dead ends: 10227 [2021-08-29 03:13:32,226 INFO L226 Difference]: Without dead ends: 7740 [2021-08-29 03:13:32,229 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 14.68ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-29 03:13:32,230 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 422 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 344.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.77ms SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 438.22ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:32,230 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 0 Invalid, 1097 Unknown, 0 Unchecked, 2.77ms Time], IncrementalHoareTripleChecker [78 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 438.22ms Time] [2021-08-29 03:13:32,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7740 states. [2021-08-29 03:13:32,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7740 to 5669. [2021-08-29 03:13:32,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5669 states, 5668 states have (on average 1.3484474241354976) internal successors, (7643), 5668 states have internal predecessors, (7643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:32,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7643 transitions. [2021-08-29 03:13:32,336 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7643 transitions. Word has length 361 [2021-08-29 03:13:32,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:32,336 INFO L470 AbstractCegarLoop]: Abstraction has 5669 states and 7643 transitions. [2021-08-29 03:13:32,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:32,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7643 transitions. [2021-08-29 03:13:32,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-08-29 03:13:32,344 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:32,344 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:32,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 03:13:32,557 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,SelfDestructingSolverStorable21 [2021-08-29 03:13:32,558 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:32,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:32,558 INFO L82 PathProgramCache]: Analyzing trace with hash 290805068, now seen corresponding path program 2 times [2021-08-29 03:13:32,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:32,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582737378] [2021-08-29 03:13:32,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:32,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:32,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-29 03:13:32,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:32,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582737378] [2021-08-29 03:13:32,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582737378] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 03:13:32,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117243121] [2021-08-29 03:13:32,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-29 03:13:32,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 03:13:32,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:13:32,600 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) [2021-08-29 03:13:32,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-29 03:13:32,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-29 03:13:32,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-29 03:13:32,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 03:13:32,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:13:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-29 03:13:33,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:13:33,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-29 03:13:33,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117243121] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 03:13:33,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 03:13:33,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-08-29 03:13:33,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790435781] [2021-08-29 03:13:33,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:13:33,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:33,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:13:33,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:13:33,598 INFO L87 Difference]: Start difference. First operand 5669 states and 7643 transitions. Second operand has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:33,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:33,995 INFO L93 Difference]: Finished difference Result 12703 states and 17150 transitions. [2021-08-29 03:13:33,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 03:13:33,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 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 374 [2021-08-29 03:13:33,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:34,005 INFO L225 Difference]: With dead ends: 12703 [2021-08-29 03:13:34,006 INFO L226 Difference]: Without dead ends: 7058 [2021-08-29 03:13:34,014 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 752 GetRequests, 747 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 11.04ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 03:13:34,015 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 346 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 252.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.99ms SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 321.65ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:34,015 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 0 Invalid, 682 Unknown, 0 Unchecked, 1.99ms Time], IncrementalHoareTripleChecker [60 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 321.65ms Time] [2021-08-29 03:13:34,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2021-08-29 03:13:34,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 5789. [2021-08-29 03:13:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5789 states, 5788 states have (on average 1.3344851416724257) internal successors, (7724), 5788 states have internal predecessors, (7724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:34,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 7724 transitions. [2021-08-29 03:13:34,113 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 7724 transitions. Word has length 374 [2021-08-29 03:13:34,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:34,113 INFO L470 AbstractCegarLoop]: Abstraction has 5789 states and 7724 transitions. [2021-08-29 03:13:34,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:34,114 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 7724 transitions. [2021-08-29 03:13:34,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-08-29 03:13:34,119 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:34,120 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:34,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-08-29 03:13:34,336 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,SelfDestructingSolverStorable22 [2021-08-29 03:13:34,337 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:34,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:34,337 INFO L82 PathProgramCache]: Analyzing trace with hash -939951161, now seen corresponding path program 1 times [2021-08-29 03:13:34,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:34,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160160605] [2021-08-29 03:13:34,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:34,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-08-29 03:13:34,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:34,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160160605] [2021-08-29 03:13:34,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160160605] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:34,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:34,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:34,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839215536] [2021-08-29 03:13:34,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:34,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:34,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:34,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:34,383 INFO L87 Difference]: Start difference. First operand 5789 states and 7724 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) [2021-08-29 03:13:34,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:34,570 INFO L93 Difference]: Finished difference Result 11133 states and 14642 transitions. [2021-08-29 03:13:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:34,576 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 413 [2021-08-29 03:13:34,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:34,581 INFO L225 Difference]: With dead ends: 11133 [2021-08-29 03:13:34,581 INFO L226 Difference]: Without dead ends: 3109 [2021-08-29 03:13:34,586 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.06ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:34,587 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 39 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.63ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 148.96ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:34,587 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 0 Invalid, 379 Unknown, 0 Unchecked, 0.63ms Time], IncrementalHoareTripleChecker [4 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 148.96ms Time] [2021-08-29 03:13:34,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-08-29 03:13:34,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3043. [2021-08-29 03:13:34,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 3042 states have (on average 1.3356344510190663) internal successors, (4063), 3042 states have internal predecessors, (4063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:34,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4063 transitions. [2021-08-29 03:13:34,636 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4063 transitions. Word has length 413 [2021-08-29 03:13:34,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:34,636 INFO L470 AbstractCegarLoop]: Abstraction has 3043 states and 4063 transitions. [2021-08-29 03:13:34,636 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) [2021-08-29 03:13:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4063 transitions. [2021-08-29 03:13:34,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2021-08-29 03:13:34,640 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:34,641 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:34,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-29 03:13:34,641 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:34,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:34,642 INFO L82 PathProgramCache]: Analyzing trace with hash -826650578, now seen corresponding path program 1 times [2021-08-29 03:13:34,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:34,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396742168] [2021-08-29 03:13:34,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:34,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1648 proven. 14 refuted. 0 times theorem prover too weak. 1236 trivial. 0 not checked. [2021-08-29 03:13:34,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:34,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396742168] [2021-08-29 03:13:34,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396742168] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 03:13:34,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904413310] [2021-08-29 03:13:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:34,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 03:13:34,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:13:34,697 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) [2021-08-29 03:13:34,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-29 03:13:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:34,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 03:13:34,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:13:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1075 proven. 0 refuted. 0 times theorem prover too weak. 1823 trivial. 0 not checked. [2021-08-29 03:13:35,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 03:13:35,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904413310] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:35,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 03:13:35,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-29 03:13:35,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174773056] [2021-08-29 03:13:35,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:35,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:35,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:35,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:13:35,620 INFO L87 Difference]: Start difference. First operand 3043 states and 4063 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:35,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:35,773 INFO L93 Difference]: Finished difference Result 3068 states and 4093 transitions. [2021-08-29 03:13:35,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:35,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 511 [2021-08-29 03:13:35,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:35,777 INFO L225 Difference]: With dead ends: 3068 [2021-08-29 03:13:35,777 INFO L226 Difference]: Without dead ends: 2571 [2021-08-29 03:13:35,778 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.01ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:13:35,778 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 56 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 129.45ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:35,779 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 0 Invalid, 260 Unknown, 0 Unchecked, 0.45ms Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 129.45ms Time] [2021-08-29 03:13:35,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2021-08-29 03:13:35,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2548. [2021-08-29 03:13:35,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2547 states have (on average 1.3345111896348645) internal successors, (3399), 2547 states have internal predecessors, (3399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:35,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3399 transitions. [2021-08-29 03:13:35,814 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3399 transitions. Word has length 511 [2021-08-29 03:13:35,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:35,815 INFO L470 AbstractCegarLoop]: Abstraction has 2548 states and 3399 transitions. [2021-08-29 03:13:35,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:35,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3399 transitions. [2021-08-29 03:13:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2021-08-29 03:13:35,820 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:35,821 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 16, 16, 14, 14, 13, 13, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:35,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-29 03:13:36,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 03:13:36,038 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:36,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:36,039 INFO L82 PathProgramCache]: Analyzing trace with hash -301655084, now seen corresponding path program 1 times [2021-08-29 03:13:36,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:36,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042107015] [2021-08-29 03:13:36,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:36,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2784 backedges. 1623 proven. 14 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2021-08-29 03:13:36,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:36,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042107015] [2021-08-29 03:13:36,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042107015] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 03:13:36,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165447844] [2021-08-29 03:13:36,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:36,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 03:13:36,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:13:36,102 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) [2021-08-29 03:13:36,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-29 03:13:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:36,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 03:13:36,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:13:36,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2784 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 2506 trivial. 0 not checked. [2021-08-29 03:13:36,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 03:13:36,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165447844] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:36,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 03:13:36,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-29 03:13:36,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766665822] [2021-08-29 03:13:36,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:36,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:36,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:36,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:13:36,823 INFO L87 Difference]: Start difference. First operand 2548 states and 3399 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:37,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:37,005 INFO L93 Difference]: Finished difference Result 5167 states and 6909 transitions. [2021-08-29 03:13:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:37,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 512 [2021-08-29 03:13:37,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:37,009 INFO L225 Difference]: With dead ends: 5167 [2021-08-29 03:13:37,009 INFO L226 Difference]: Without dead ends: 2656 [2021-08-29 03:13:37,022 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.15ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:13:37,023 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 49 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 159.69ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:37,024 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 0 Invalid, 335 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [22 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 159.69ms Time] [2021-08-29 03:13:37,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2021-08-29 03:13:37,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2653. [2021-08-29 03:13:37,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2652 states have (on average 1.2861990950226245) internal successors, (3411), 2652 states have internal predecessors, (3411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:37,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 3411 transitions. [2021-08-29 03:13:37,051 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 3411 transitions. Word has length 512 [2021-08-29 03:13:37,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:37,051 INFO L470 AbstractCegarLoop]: Abstraction has 2653 states and 3411 transitions. [2021-08-29 03:13:37,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:37,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 3411 transitions. [2021-08-29 03:13:37,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2021-08-29 03:13:37,056 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:37,057 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:37,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-29 03:13:37,274 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,SelfDestructingSolverStorable25 [2021-08-29 03:13:37,275 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:37,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:37,275 INFO L82 PathProgramCache]: Analyzing trace with hash 44620561, now seen corresponding path program 2 times [2021-08-29 03:13:37,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:37,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677289895] [2021-08-29 03:13:37,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:37,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:37,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2021-08-29 03:13:37,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:37,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677289895] [2021-08-29 03:13:37,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677289895] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 03:13:37,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596076662] [2021-08-29 03:13:37,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-29 03:13:37,334 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 03:13:37,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:13:37,337 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) [2021-08-29 03:13:37,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-29 03:13:37,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-29 03:13:37,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-29 03:13:37,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 03:13:37,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:13:38,246 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2021-08-29 03:13:38,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:13:39,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2021-08-29 03:13:39,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596076662] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 03:13:39,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 03:13:39,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-08-29 03:13:39,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995579474] [2021-08-29 03:13:39,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:13:39,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:39,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:13:39,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:13:39,006 INFO L87 Difference]: Start difference. First operand 2653 states and 3411 transitions. Second operand has 6 states, 6 states have (on average 46.333333333333336) internal successors, (278), 6 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:39,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:39,238 INFO L93 Difference]: Finished difference Result 2888 states and 3708 transitions. [2021-08-29 03:13:39,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 03:13:39,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 46.333333333333336) internal successors, (278), 6 states have internal predecessors, (278), 0 states have call successors, (0), 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 623 [2021-08-29 03:13:39,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:39,239 INFO L225 Difference]: With dead ends: 2888 [2021-08-29 03:13:39,239 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 03:13:39,241 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1252 GetRequests, 1246 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.19ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-29 03:13:39,241 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 111 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 156.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.25ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 213.12ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:39,241 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 0 Invalid, 552 Unknown, 0 Unchecked, 1.25ms Time], IncrementalHoareTripleChecker [37 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 213.12ms Time] [2021-08-29 03:13:39,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 03:13:39,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 03:13:39,242 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) [2021-08-29 03:13:39,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 03:13:39,242 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 623 [2021-08-29 03:13:39,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:39,242 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 03:13:39,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.333333333333336) internal successors, (278), 6 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 03:13:39,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 03:13:39,244 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 03:13:39,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-29 03:13:39,462 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,SelfDestructingSolverStorable26 [2021-08-29 03:13:39,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 03:13:39,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:39,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:40,336 INFO L858 garLoopResultBuilder]: For program point L531(lines 531 535) no Hoare annotation was computed. [2021-08-29 03:13:40,336 INFO L858 garLoopResultBuilder]: For program point L433(lines 433 435) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 336) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L861 garLoopResultBuilder]: At program point L202(lines 201 489) the Hoare annotation is: true [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 499) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 510) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 521) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L854 garLoopResultBuilder]: At program point L170(lines 166 500) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-29 03:13:40,337 INFO L854 garLoopResultBuilder]: At program point L104(lines 103 521) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L468(lines 468 470) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 440) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L436-2(lines 436 440) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L337(lines 337 341) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 273) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L271-2(lines 203 486) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L172(lines 172 498) no Hoare annotation was computed. [2021-08-29 03:13:40,337 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 509) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 520) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L854 garLoopResultBuilder]: At program point L140(lines 136 510) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (< 4368 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L306(lines 306 308) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L240(lines 240 243) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L306-2(lines 203 486) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 408) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 375) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L854 garLoopResultBuilder]: At program point L208(lines 106 520) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 497) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 508) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 519) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L854 garLoopResultBuilder]: At program point L176(lines 172 498) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L474(lines 474 476) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L474-2(lines 474 476) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L861 garLoopResultBuilder]: At program point L541(lines 99 542) the Hoare annotation is: true [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L277(lines 277 281) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L277-2(lines 277 281) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L178(lines 178 496) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L145(lines 145 507) no Hoare annotation was computed. [2021-08-29 03:13:40,338 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 518) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L854 garLoopResultBuilder]: At program point L146(lines 142 508) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 215) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 215) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L181(lines 181 495) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L148(lines 148 506) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 517) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L479(lines 479 481) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 457) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L413(lines 413 427) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 413 427) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L446-2(lines 446 457) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L314(lines 314 317) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L854 garLoopResultBuilder]: At program point L182(lines 178 496) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse0) (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse0))) [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 548) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L546-2(lines 546 548) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L349(lines 349 351) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 494) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L151(lines 151 505) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 516) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L383(lines 383 385) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 03:13:40,339 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 221) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L854 garLoopResultBuilder]: At program point L152(lines 148 506) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 92) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L252(lines 252 258) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L451(lines 451 454) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 493) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 504) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 515) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L861 garLoopResultBuilder]: At program point L551(lines 12 553) the Hoare annotation is: true [2021-08-29 03:13:40,340 INFO L854 garLoopResultBuilder]: At program point L188(lines 184 494) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)))) [2021-08-29 03:13:40,340 INFO L854 garLoopResultBuilder]: At program point L122(lines 118 516) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (< ULTIMATE.start_ssl3_connect_~s__state~0 4400)) [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L89(lines 89 91) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L89-2(lines 86 92) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 298) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 257) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L288-2(lines 288 298) no Hoare annotation was computed. [2021-08-29 03:13:40,340 INFO L858 garLoopResultBuilder]: For program point L255-2(lines 203 486) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L854 garLoopResultBuilder]: At program point L487(lines 100 540) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse0 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse5 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse9 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse10 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse4 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse8 (not .cse2)) (.cse3 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse12 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse7 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse11 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse5) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4384) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1)) (and .cse6 .cse7 .cse4 .cse8) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse0 .cse4 .cse2) (and .cse9 .cse10 .cse11 .cse1 .cse2) (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2 .cse3 .cse5) (and .cse4 .cse2 .cse12) (and .cse9 .cse10 .cse4 .cse8 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse2 .cse3) (and .cse1 .cse12) (and .cse6 .cse7 .cse11 .cse1 .cse2)))) [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 324) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L190(lines 190 492) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 503) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 514) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L389(lines 389 393) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L854 garLoopResultBuilder]: At program point L323(lines 77 552) the Hoare annotation is: false [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L389-2(lines 203 486) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 235) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L224-2(lines 203 486) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 538) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L523(lines 523 537) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L358(lines 358 360) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 327) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L292(lines 292 294) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L226(lines 226 229) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L292-2(lines 290 298) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 491) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 502) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L127(lines 127 513) no Hoare annotation was computed. [2021-08-29 03:13:40,341 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 98) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 529) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L524-2(lines 523 537) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L854 garLoopResultBuilder]: At program point L194(lines 190 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (not .cse2)) (and .cse0 .cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2))) [2021-08-29 03:13:40,342 INFO L854 garLoopResultBuilder]: At program point L128(lines 124 514) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (< ULTIMATE.start_ssl3_connect_~s__state~0 4400) (< 4368 ULTIMATE.start_ssl3_connect_~s__state~0)) [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L95(lines 95 97) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 528) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 490) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L163(lines 163 501) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L130(lines 130 512) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 367) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L362-2(lines 362 367) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 233) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L854 garLoopResultBuilder]: At program point L197(lines 196 490) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (not .cse2) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)))) [2021-08-29 03:13:40,342 INFO L854 garLoopResultBuilder]: At program point L164(lines 154 504) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 550) no Hoare annotation was computed. [2021-08-29 03:13:40,342 INFO L858 garLoopResultBuilder]: For program point L462-1(lines 462 464) no Hoare annotation was computed. [2021-08-29 03:13:40,343 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 266) no Hoare annotation was computed. [2021-08-29 03:13:40,343 INFO L861 garLoopResultBuilder]: At program point L562(lines 554 564) the Hoare annotation is: true [2021-08-29 03:13:40,343 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 489) no Hoare annotation was computed. [2021-08-29 03:13:40,343 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 500) no Hoare annotation was computed. [2021-08-29 03:13:40,343 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 511) no Hoare annotation was computed. [2021-08-29 03:13:40,343 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 77 552) no Hoare annotation was computed. [2021-08-29 03:13:40,343 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 401) no Hoare annotation was computed. [2021-08-29 03:13:40,343 INFO L861 garLoopResultBuilder]: At program point L200(lines 199 489) the Hoare annotation is: true [2021-08-29 03:13:40,343 INFO L854 garLoopResultBuilder]: At program point L134(lines 130 512) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse2 (< 4368 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1 .cse2))) [2021-08-29 03:13:40,343 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-08-29 03:13:40,350 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 03:13:40,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:13:40 BoogieIcfgContainer [2021-08-29 03:13:40,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 03:13:40,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 03:13:40,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 03:13:40,377 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 03:13:40,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:13:24" (3/4) ... [2021-08-29 03:13:40,379 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 03:13:40,394 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 03:13:40,395 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 03:13:40,395 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 03:13:40,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 03:13:40,468 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 03:13:40,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 03:13:40,469 INFO L158 Benchmark]: Toolchain (without parser) took 17162.57ms. Allocated memory was 60.8MB in the beginning and 367.0MB in the end (delta: 306.2MB). Free memory was 40.0MB in the beginning and 270.6MB in the end (delta: -230.5MB). Peak memory consumption was 75.9MB. Max. memory is 16.1GB. [2021-08-29 03:13:40,469 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 60.8MB. Free memory was 42.3MB in the beginning and 42.3MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:13:40,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.90ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 40.6MB in the end (delta: -851.0kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-29 03:13:40,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.72ms. Allocated memory is still 60.8MB. Free memory was 40.4MB in the beginning and 37.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 03:13:40,469 INFO L158 Benchmark]: Boogie Preprocessor took 20.51ms. Allocated memory is still 60.8MB. Free memory was 37.7MB in the beginning and 35.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:13:40,470 INFO L158 Benchmark]: RCFGBuilder took 469.56ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.8MB in the beginning and 42.5MB in the end (delta: -6.7MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-08-29 03:13:40,470 INFO L158 Benchmark]: TraceAbstraction took 16242.14ms. Allocated memory was 73.4MB in the beginning and 367.0MB in the end (delta: 293.6MB). Free memory was 42.2MB in the beginning and 280.1MB in the end (delta: -237.9MB). Peak memory consumption was 237.5MB. Max. memory is 16.1GB. [2021-08-29 03:13:40,471 INFO L158 Benchmark]: Witness Printer took 91.87ms. Allocated memory is still 367.0MB. Free memory was 280.1MB in the beginning and 270.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 03:13:40,478 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 60.8MB. Free memory was 42.3MB in the beginning and 42.3MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.90ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 40.6MB in the end (delta: -851.0kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.72ms. Allocated memory is still 60.8MB. Free memory was 40.4MB in the beginning and 37.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.51ms. Allocated memory is still 60.8MB. Free memory was 37.7MB in the beginning and 35.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.56ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.8MB in the beginning and 42.5MB in the end (delta: -6.7MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * TraceAbstraction took 16242.14ms. Allocated memory was 73.4MB in the beginning and 367.0MB in the end (delta: 293.6MB). Free memory was 42.2MB in the beginning and 280.1MB in the end (delta: -237.9MB). Peak memory consumption was 237.5MB. Max. memory is 16.1GB. * Witness Printer took 91.87ms. Allocated memory is still 367.0MB. Free memory was 280.1MB in the beginning and 270.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 550]: 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, 128 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16180.98ms, OverallIterations: 27, TraceHistogramMax: 22, EmptinessCheckTime: 89.57ms, AutomataDifference: 6400.97ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 873.63ms, InitialAbstractionConstructionTime: 9.76ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2566 SdHoareTripleChecker+Valid, 5381.89ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2566 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 4160.59ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2724 mSDsCounter, 668 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10322 IncrementalHoareTripleChecker+Invalid, 10990 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 668 mSolverCounterUnsat, 0 mSDtfsCounter, 10322 mSolverCounterSat, 31.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3827 GetRequests, 3782 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 92.08ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5789occurred in iteration=23, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 832.47ms AutomataMinimizationTime, 27 MinimizatonAttempts, 4069 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 155 NumberOfFragments, 425 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9591 FormulaSimplificationTreeSizeReduction, 239.55ms HoareSimplificationTime, 22 FomulaSimplificationsInter, 2290 FormulaSimplificationTreeSizeReductionInter, 617.21ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 174.93ms SsaConstructionTime, 687.97ms SatisfiabilityAnalysisTime, 5497.09ms InterpolantComputationTime, 8796 NumberOfCodeBlocks, 8796 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 10119 ConstructedInterpolants, 0 QuantifiedInterpolants, 13441 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4093 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 35 InterpolantComputations, 24 PerfectInterpolantSequences, 46523/46638 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: 154]: Loop Invariant Derived loop invariant: ((s__state <= 4480 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: ((((s__state <= 4432 && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && 4368 < s__state) && blastFlag <= 4) || (((blastFlag == 2 && s__state <= 4432) && s__hit == 0) && 4368 < s__state) - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: ((s__state <= 4448 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: (blastFlag == 1 && s__state < 4400) && 4368 < s__state - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: blastFlag == 0 && s__state <= 4352 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((s__state <= 4432 && s__hit == 0) && 4368 < s__state) && blastFlag <= 4 - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: ((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: ((s__state <= 4512 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2) && !(s__hit == 0)) || ((((s__state <= 4560 && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: ((4432 <= s__state && s__state <= 4464) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: ((((((((((((((4400 == s__state && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4) || ((blastFlag == 2 && 4512 <= s__state) && s__state <= 4528)) || (s__state == 4384 && blastFlag == 1)) || (((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2) && !(s__hit == 0))) || (blastFlag == 0 && s__state == 4368)) || ((4400 == s__state && blastFlag == 2) && s__hit == 0)) || ((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528)) || ((blastFlag == 2 && s__hit == 0) && s__state <= 3)) || ((((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3)) || ((s__state == 4416 && s__hit == 0) && blastFlag <= 4)) || (s__s3__tmp__next_state___0 <= 4560 && s__state <= 3)) || ((((s__state <= 4560 && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 0) && s__state < 4400 - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4512 <= s__state) || (((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || (((s__state <= 4560 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4) - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: ((s__state <= 4512 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && 4512 <= s__state) && s__state <= 4528) || (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) RESULT: Ultimate proved your program to be correct! [2021-08-29 03:13:40,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...