./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.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_3.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e741634054dd50a048146b108e465f8b335e64a 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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 03:13:24,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 03:13:24,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 03:13:24,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 03:13:24,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 03:13:24,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 03:13:24,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 03:13:24,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 03:13:24,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 03:13:24,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 03:13:24,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 03:13:24,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 03:13:24,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 03:13:24,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 03:13:24,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 03:13:24,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 03:13:24,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 03:13:24,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 03:13:24,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 03:13:24,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 03:13:24,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 03:13:24,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 03:13:24,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 03:13:24,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 03:13:24,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 03:13:24,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 03:13:24,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 03:13:24,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 03:13:24,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 03:13:24,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 03:13:24,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 03:13:24,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 03:13:24,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 03:13:24,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 03:13:24,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 03:13:24,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 03:13:24,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 03:13:24,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 03:13:24,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 03:13:24,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 03:13:24,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 03:13:24,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 03:13:24,187 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 03:13:24,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 03:13:24,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 03:13:24,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 03:13:24,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 03:13:24,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 03:13:24,192 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 03:13:24,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 03:13:24,192 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 03:13:24,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 03:13:24,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 03:13:24,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 03:13:24,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 03:13:24,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 03:13:24,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 03:13:24,194 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 03:13:24,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 03:13:24,194 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 03:13:24,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 03:13:24,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 03:13:24,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 03:13:24,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 03:13:24,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:13:24,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 03:13:24,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 03:13:24,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 03:13:24,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 03:13:24,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 03:13:24,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 03:13:24,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 03:13:24,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e741634054dd50a048146b108e465f8b335e64a [2021-08-29 03:13:24,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 03:13:24,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 03:13:24,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 03:13:24,478 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 03:13:24,479 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 03:13:24,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c [2021-08-29 03:13:24,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/799ff38a0/54e72b3b271243cba6da9200bfe36e3b/FLAGd887db1a8 [2021-08-29 03:13:24,931 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 03:13:24,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-1.c [2021-08-29 03:13:24,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/799ff38a0/54e72b3b271243cba6da9200bfe36e3b/FLAGd887db1a8 [2021-08-29 03:13:24,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/799ff38a0/54e72b3b271243cba6da9200bfe36e3b [2021-08-29 03:13:24,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 03:13:24,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 03:13:24,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 03:13:24,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 03:13:24,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 03:13:24,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:13:24" (1/1) ... [2021-08-29 03:13:24,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585e25fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:24, skipping insertion in model container [2021-08-29 03:13:24,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:13:24" (1/1) ... [2021-08-29 03:13:24,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 03:13:25,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 03:13:25,192 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_3.cil-1.c[36410,36423] [2021-08-29 03:13:25,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:13:25,201 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 03:13:25,256 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_3.cil-1.c[36410,36423] [2021-08-29 03:13:25,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:13:25,279 INFO L208 MainTranslator]: Completed translation [2021-08-29 03:13:25,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25 WrapperNode [2021-08-29 03:13:25,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 03:13:25,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 03:13:25,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 03:13:25,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 03:13:25,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2021-08-29 03:13:25,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2021-08-29 03:13:25,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 03:13:25,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 03:13:25,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 03:13:25,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 03:13:25,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2021-08-29 03:13:25,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2021-08-29 03:13:25,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2021-08-29 03:13:25,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2021-08-29 03:13:25,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2021-08-29 03:13:25,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2021-08-29 03:13:25,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2021-08-29 03:13:25,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 03:13:25,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 03:13:25,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 03:13:25,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 03:13:25,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (1/1) ... [2021-08-29 03:13:25,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:13:25,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:13:25,427 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 03:13:25,431 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 03:13:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 03:13:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 03:13:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 03:13:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 03:13:25,524 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-29 03:13:25,638 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-08-29 03:13:25,638 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-08-29 03:13:25,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 03:13:25,644 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 03:13:25,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:13:25 BoogieIcfgContainer [2021-08-29 03:13:25,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 03:13:25,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 03:13:25,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 03:13:25,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 03:13:25,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:13:24" (1/3) ... [2021-08-29 03:13:25,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202658ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:13:25, skipping insertion in model container [2021-08-29 03:13:25,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:13:25" (2/3) ... [2021-08-29 03:13:25,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202658ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:13:25, skipping insertion in model container [2021-08-29 03:13:25,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:13:25" (3/3) ... [2021-08-29 03:13:25,651 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-1.c [2021-08-29 03:13:25,655 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 03:13:25,655 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 03:13:25,687 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 03:13:25,692 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 03:13:25,692 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 03:13:25,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 122 states have (on average 1.7377049180327868) internal successors, (212), 123 states have internal predecessors, (212), 0 states have call successors, (0), 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 03:13:25,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 03:13:25,708 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:25,709 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 03:13:25,709 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:25,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:25,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2021-08-29 03:13:25,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:25,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969013272] [2021-08-29 03:13:25,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:25,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:25,910 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 03:13:25,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:25,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969013272] [2021-08-29 03:13:25,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969013272] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:25,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:25,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:25,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814589207] [2021-08-29 03:13:25,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:25,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:25,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:25,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:25,944 INFO L87 Difference]: Start difference. First operand has 124 states, 122 states have (on average 1.7377049180327868) internal successors, (212), 123 states have internal predecessors, (212), 0 states have call successors, (0), 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 03:13:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:26,325 INFO L93 Difference]: Finished difference Result 244 states and 419 transitions. [2021-08-29 03:13:26,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:26,327 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 03:13:26,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:26,333 INFO L225 Difference]: With dead ends: 244 [2021-08-29 03:13:26,333 INFO L226 Difference]: Without dead ends: 112 [2021-08-29 03:13:26,335 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,338 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 268.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.92ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 341.29ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:26,339 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 408 Unknown, 0 Unchecked, 3.92ms Time], IncrementalHoareTripleChecker [1 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 341.29ms Time] [2021-08-29 03:13:26,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-08-29 03:13:26,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-08-29 03:13:26,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.5225225225225225) internal successors, (169), 111 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:26,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2021-08-29 03:13:26,366 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2021-08-29 03:13:26,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:26,366 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2021-08-29 03:13:26,367 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 03:13:26,367 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2021-08-29 03:13:26,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-29 03:13:26,368 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:26,368 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] [2021-08-29 03:13:26,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 03:13:26,368 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:26,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:26,369 INFO L82 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2021-08-29 03:13:26,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:26,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683585526] [2021-08-29 03:13:26,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:26,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:26,408 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 03:13:26,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:26,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683585526] [2021-08-29 03:13:26,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683585526] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:26,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:26,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:26,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408542604] [2021-08-29 03:13:26,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:26,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:26,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:26,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,411 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 03:13:26,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:26,595 INFO L93 Difference]: Finished difference Result 232 states and 354 transitions. [2021-08-29 03:13:26,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:26,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-08-29 03:13:26,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:26,597 INFO L225 Difference]: With dead ends: 232 [2021-08-29 03:13:26,597 INFO L226 Difference]: Without dead ends: 130 [2021-08-29 03:13:26,598 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,599 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 164.55ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:26,599 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 339 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [7 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 164.55ms Time] [2021-08-29 03:13:26,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-08-29 03:13:26,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2021-08-29 03:13:26,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5) internal successors, (189), 126 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:26,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2021-08-29 03:13:26,608 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2021-08-29 03:13:26,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:26,609 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2021-08-29 03:13:26,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 03:13:26,609 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2021-08-29 03:13:26,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-29 03:13:26,610 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:26,611 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] [2021-08-29 03:13:26,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 03:13:26,611 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:26,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:26,612 INFO L82 PathProgramCache]: Analyzing trace with hash -114868729, now seen corresponding path program 1 times [2021-08-29 03:13:26,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:26,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6380843] [2021-08-29 03:13:26,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:26,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:26,656 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 03:13:26,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:26,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6380843] [2021-08-29 03:13:26,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6380843] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:26,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:26,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:26,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943099856] [2021-08-29 03:13:26,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:26,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:26,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:26,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,659 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 03:13:26,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:26,850 INFO L93 Difference]: Finished difference Result 266 states and 402 transitions. [2021-08-29 03:13:26,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:26,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 50 [2021-08-29 03:13:26,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:26,852 INFO L225 Difference]: With dead ends: 266 [2021-08-29 03:13:26,852 INFO L226 Difference]: Without dead ends: 149 [2021-08-29 03:13:26,853 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,853 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 137.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.08ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 180.60ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:26,854 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 356 Unknown, 0 Unchecked, 1.08ms Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 180.60ms Time] [2021-08-29 03:13:26,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-08-29 03:13:26,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 144. [2021-08-29 03:13:26,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4755244755244756) internal successors, (211), 143 states have internal predecessors, (211), 0 states have call successors, (0), 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 03:13:26,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2021-08-29 03:13:26,861 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2021-08-29 03:13:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:26,862 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2021-08-29 03:13:26,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 03:13:26,862 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2021-08-29 03:13:26,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-08-29 03:13:26,863 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:26,864 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] [2021-08-29 03:13:26,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 03:13:26,864 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:26,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:26,865 INFO L82 PathProgramCache]: Analyzing trace with hash -682645784, now seen corresponding path program 1 times [2021-08-29 03:13:26,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:26,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228979324] [2021-08-29 03:13:26,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:26,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:26,928 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 03:13:26,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:26,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228979324] [2021-08-29 03:13:26,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228979324] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:26,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:26,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:26,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636334411] [2021-08-29 03:13:26,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:26,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:26,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:26,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:26,931 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 03:13:27,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:27,153 INFO L93 Difference]: Finished difference Result 328 states and 496 transitions. [2021-08-29 03:13:27,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:27,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 67 [2021-08-29 03:13:27,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:27,156 INFO L225 Difference]: With dead ends: 328 [2021-08-29 03:13:27,156 INFO L226 Difference]: Without dead ends: 193 [2021-08-29 03:13:27,158 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,165 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 163.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.03ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 210.18ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:27,166 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 377 Unknown, 0 Unchecked, 1.03ms Time], IncrementalHoareTripleChecker [33 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 210.18ms Time] [2021-08-29 03:13:27,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-08-29 03:13:27,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 185. [2021-08-29 03:13:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.4184782608695652) internal successors, (261), 184 states have internal predecessors, (261), 0 states have call successors, (0), 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 03:13:27,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 261 transitions. [2021-08-29 03:13:27,183 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 261 transitions. Word has length 67 [2021-08-29 03:13:27,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:27,186 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 261 transitions. [2021-08-29 03:13:27,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 185 states and 261 transitions. [2021-08-29 03:13:27,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-08-29 03:13:27,190 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:27,190 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] [2021-08-29 03:13:27,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 03:13:27,191 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:27,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:27,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1806883178, now seen corresponding path program 1 times [2021-08-29 03:13:27,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:27,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477027753] [2021-08-29 03:13:27,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:27,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:27,265 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 03:13:27,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:27,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477027753] [2021-08-29 03:13:27,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477027753] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:27,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:27,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:27,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511493637] [2021-08-29 03:13:27,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:27,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:27,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:27,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,269 INFO L87 Difference]: Start difference. First operand 185 states and 261 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 03:13:27,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:27,457 INFO L93 Difference]: Finished difference Result 383 states and 548 transitions. [2021-08-29 03:13:27,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:27,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 67 [2021-08-29 03:13:27,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:27,459 INFO L225 Difference]: With dead ends: 383 [2021-08-29 03:13:27,459 INFO L226 Difference]: Without dead ends: 208 [2021-08-29 03:13:27,460 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,460 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 137.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 178.50ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:27,461 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 365 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [11 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 178.50ms Time] [2021-08-29 03:13:27,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-08-29 03:13:27,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2021-08-29 03:13:27,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 203 states have (on average 1.4039408866995073) internal successors, (285), 203 states have internal predecessors, (285), 0 states have call successors, (0), 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 03:13:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 285 transitions. [2021-08-29 03:13:27,468 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 285 transitions. Word has length 67 [2021-08-29 03:13:27,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:27,468 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 285 transitions. [2021-08-29 03:13:27,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 03:13:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 285 transitions. [2021-08-29 03:13:27,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-08-29 03:13:27,469 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:27,469 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] [2021-08-29 03:13:27,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 03:13:27,470 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:27,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:27,470 INFO L82 PathProgramCache]: Analyzing trace with hash 170492736, now seen corresponding path program 1 times [2021-08-29 03:13:27,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:27,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780971627] [2021-08-29 03:13:27,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:27,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:27,523 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 03:13:27,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:27,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780971627] [2021-08-29 03:13:27,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780971627] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:27,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:27,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:27,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619085784] [2021-08-29 03:13:27,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:27,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:27,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:27,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,525 INFO L87 Difference]: Start difference. First operand 204 states and 285 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 03:13:27,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:27,716 INFO L93 Difference]: Finished difference Result 422 states and 598 transitions. [2021-08-29 03:13:27,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:27,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 83 [2021-08-29 03:13:27,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:27,718 INFO L225 Difference]: With dead ends: 422 [2021-08-29 03:13:27,718 INFO L226 Difference]: Without dead ends: 228 [2021-08-29 03:13:27,719 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.29ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,719 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.75ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 175.07ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:27,720 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 368 Unknown, 0 Unchecked, 0.75ms Time], IncrementalHoareTripleChecker [13 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 175.07ms Time] [2021-08-29 03:13:27,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-08-29 03:13:27,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2021-08-29 03:13:27,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.3883928571428572) internal successors, (311), 224 states have internal predecessors, (311), 0 states have call successors, (0), 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 03:13:27,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 311 transitions. [2021-08-29 03:13:27,726 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 311 transitions. Word has length 83 [2021-08-29 03:13:27,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:27,726 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 311 transitions. [2021-08-29 03:13:27,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 03:13:27,726 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 311 transitions. [2021-08-29 03:13:27,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-08-29 03:13:27,727 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:27,727 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] [2021-08-29 03:13:27,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 03:13:27,728 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:27,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:27,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1976749000, now seen corresponding path program 1 times [2021-08-29 03:13:27,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:27,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657090412] [2021-08-29 03:13:27,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:27,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:27,770 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 03:13:27,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:27,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657090412] [2021-08-29 03:13:27,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657090412] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:27,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:27,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:27,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665193302] [2021-08-29 03:13:27,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:27,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:27,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:27,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:27,772 INFO L87 Difference]: Start difference. First operand 225 states and 311 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 03:13:28,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:28,001 INFO L93 Difference]: Finished difference Result 652 states and 903 transitions. [2021-08-29 03:13:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:28,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-08-29 03:13:28,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:28,003 INFO L225 Difference]: With dead ends: 652 [2021-08-29 03:13:28,003 INFO L226 Difference]: Without dead ends: 437 [2021-08-29 03:13:28,003 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 03:13:28,004 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 123 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 163.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.99ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 213.02ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:28,004 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 0 Invalid, 379 Unknown, 0 Unchecked, 0.99ms Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 213.02ms Time] [2021-08-29 03:13:28,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-08-29 03:13:28,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2021-08-29 03:13:28,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 436 states have (on average 1.3761467889908257) internal successors, (600), 436 states have internal predecessors, (600), 0 states have call successors, (0), 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 03:13:28,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 600 transitions. [2021-08-29 03:13:28,040 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 600 transitions. Word has length 103 [2021-08-29 03:13:28,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:28,040 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 600 transitions. [2021-08-29 03:13:28,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 03:13:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 600 transitions. [2021-08-29 03:13:28,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-08-29 03:13:28,041 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:28,042 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] [2021-08-29 03:13:28,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 03:13:28,042 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:28,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:28,042 INFO L82 PathProgramCache]: Analyzing trace with hash -102965200, now seen corresponding path program 1 times [2021-08-29 03:13:28,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:28,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943209363] [2021-08-29 03:13:28,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:28,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:28,104 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 03:13:28,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:28,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943209363] [2021-08-29 03:13:28,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943209363] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:28,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:28,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:28,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75505170] [2021-08-29 03:13:28,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:28,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:28,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:28,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:28,106 INFO L87 Difference]: Start difference. First operand 437 states and 600 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:28,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:28,272 INFO L93 Difference]: Finished difference Result 885 states and 1214 transitions. [2021-08-29 03:13:28,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:28,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-08-29 03:13:28,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:28,274 INFO L225 Difference]: With dead ends: 885 [2021-08-29 03:13:28,274 INFO L226 Difference]: Without dead ends: 458 [2021-08-29 03:13:28,275 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 03:13:28,276 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 154.15ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:28,276 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 350 Unknown, 0 Unchecked, 0.59ms Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 154.15ms Time] [2021-08-29 03:13:28,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-08-29 03:13:28,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2021-08-29 03:13:28,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 457 states have (on average 1.3719912472647702) internal successors, (627), 457 states have internal predecessors, (627), 0 states have call successors, (0), 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 03:13:28,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 627 transitions. [2021-08-29 03:13:28,291 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 627 transitions. Word has length 104 [2021-08-29 03:13:28,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:28,292 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 627 transitions. [2021-08-29 03:13:28,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:28,292 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 627 transitions. [2021-08-29 03:13:28,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-08-29 03:13:28,293 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:28,293 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] [2021-08-29 03:13:28,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 03:13:28,294 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:28,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:28,295 INFO L82 PathProgramCache]: Analyzing trace with hash 736068462, now seen corresponding path program 1 times [2021-08-29 03:13:28,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:28,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661031645] [2021-08-29 03:13:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:28,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:28,345 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 03:13:28,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:28,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661031645] [2021-08-29 03:13:28,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661031645] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:28,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:28,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:28,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775978442] [2021-08-29 03:13:28,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:28,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:28,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:28,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:28,348 INFO L87 Difference]: Start difference. First operand 458 states and 627 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 03:13:28,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:28,509 INFO L93 Difference]: Finished difference Result 932 states and 1274 transitions. [2021-08-29 03:13:28,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:28,509 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 104 [2021-08-29 03:13:28,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:28,511 INFO L225 Difference]: With dead ends: 932 [2021-08-29 03:13:28,511 INFO L226 Difference]: Without dead ends: 484 [2021-08-29 03:13:28,511 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 03:13:28,512 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.32ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 147.62ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:28,512 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 322 Unknown, 0 Unchecked, 1.32ms Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 147.62ms Time] [2021-08-29 03:13:28,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-08-29 03:13:28,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2021-08-29 03:13:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 483 states have (on average 1.3664596273291925) internal successors, (660), 483 states have internal predecessors, (660), 0 states have call successors, (0), 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 484 states to 484 states and 660 transitions. [2021-08-29 03:13:28,519 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 660 transitions. Word has length 104 [2021-08-29 03:13:28,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:28,519 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 660 transitions. [2021-08-29 03:13:28,520 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 03:13:28,520 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 660 transitions. [2021-08-29 03:13:28,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-08-29 03:13:28,521 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:28,521 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 03:13:28,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 03:13:28,521 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:28,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:28,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1108389378, now seen corresponding path program 1 times [2021-08-29 03:13:28,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:28,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504564422] [2021-08-29 03:13:28,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:28,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:28,550 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 03:13:28,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:28,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504564422] [2021-08-29 03:13:28,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504564422] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:28,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:28,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:28,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711377309] [2021-08-29 03:13:28,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:28,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:28,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:28,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:28,551 INFO L87 Difference]: Start difference. First operand 484 states and 660 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 03:13:28,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:28,758 INFO L93 Difference]: Finished difference Result 699 states and 957 transitions. [2021-08-29 03:13:28,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:28,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 03:13:28,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:28,760 INFO L225 Difference]: With dead ends: 699 [2021-08-29 03:13:28,760 INFO L226 Difference]: Without dead ends: 697 [2021-08-29 03:13:28,760 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 03:13:28,761 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 136 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.68ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 193.15ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:28,761 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 0 Invalid, 325 Unknown, 0 Unchecked, 0.68ms Time], IncrementalHoareTripleChecker [7 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 193.15ms Time] [2021-08-29 03:13:28,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2021-08-29 03:13:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2021-08-29 03:13:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 1.3721264367816093) internal successors, (955), 696 states have internal predecessors, (955), 0 states have call successors, (0), 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 03:13:28,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 955 transitions. [2021-08-29 03:13:28,780 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 955 transitions. Word has length 105 [2021-08-29 03:13:28,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:28,780 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 955 transitions. [2021-08-29 03:13:28,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 03:13:28,781 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 955 transitions. [2021-08-29 03:13:28,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-08-29 03:13:28,782 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:28,782 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 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] [2021-08-29 03:13:28,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 03:13:28,783 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:28,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:28,784 INFO L82 PathProgramCache]: Analyzing trace with hash -391134295, now seen corresponding path program 1 times [2021-08-29 03:13:28,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:28,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643969890] [2021-08-29 03:13:28,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:28,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:28,837 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-08-29 03:13:28,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:28,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643969890] [2021-08-29 03:13:28,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643969890] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:28,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:28,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:28,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294218734] [2021-08-29 03:13:28,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:28,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:28,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:28,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:28,840 INFO L87 Difference]: Start difference. First operand 697 states and 955 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:29,004 INFO L93 Difference]: Finished difference Result 1508 states and 2127 transitions. [2021-08-29 03:13:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:29,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2021-08-29 03:13:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:29,007 INFO L225 Difference]: With dead ends: 1508 [2021-08-29 03:13:29,007 INFO L226 Difference]: Without dead ends: 844 [2021-08-29 03:13:29,008 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 03:13:29,009 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 94 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 149.41ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:29,009 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 0 Invalid, 343 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [43 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 149.41ms Time] [2021-08-29 03:13:29,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-08-29 03:13:29,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 814. [2021-08-29 03:13:29,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 1.4071340713407134) internal successors, (1144), 813 states have internal predecessors, (1144), 0 states have call successors, (0), 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 03:13:29,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1144 transitions. [2021-08-29 03:13:29,022 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1144 transitions. Word has length 159 [2021-08-29 03:13:29,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:29,022 INFO L470 AbstractCegarLoop]: Abstraction has 814 states and 1144 transitions. [2021-08-29 03:13:29,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,022 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1144 transitions. [2021-08-29 03:13:29,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-08-29 03:13:29,024 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:29,024 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, 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 03:13:29,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 03:13:29,024 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:29,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:29,027 INFO L82 PathProgramCache]: Analyzing trace with hash -408594384, now seen corresponding path program 1 times [2021-08-29 03:13:29,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:29,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441906553] [2021-08-29 03:13:29,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:29,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:29,074 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-08-29 03:13:29,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:29,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441906553] [2021-08-29 03:13:29,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441906553] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:29,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:29,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:29,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549640462] [2021-08-29 03:13:29,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:29,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:29,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:29,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:29,077 INFO L87 Difference]: Start difference. First operand 814 states and 1144 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 03:13:29,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:29,240 INFO L93 Difference]: Finished difference Result 1870 states and 2708 transitions. [2021-08-29 03:13:29,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:29,240 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 185 [2021-08-29 03:13:29,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:29,243 INFO L225 Difference]: With dead ends: 1870 [2021-08-29 03:13:29,243 INFO L226 Difference]: Without dead ends: 1041 [2021-08-29 03:13:29,244 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 03:13:29,245 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 93 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 115.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.74ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 143.67ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:29,245 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 0 Invalid, 351 Unknown, 0 Unchecked, 0.74ms Time], IncrementalHoareTripleChecker [41 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 143.67ms Time] [2021-08-29 03:13:29,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2021-08-29 03:13:29,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1003. [2021-08-29 03:13:29,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1002 states have (on average 1.3932135728542914) internal successors, (1396), 1002 states have internal predecessors, (1396), 0 states have call successors, (0), 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 03:13:29,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1396 transitions. [2021-08-29 03:13:29,262 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1396 transitions. Word has length 185 [2021-08-29 03:13:29,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:29,262 INFO L470 AbstractCegarLoop]: Abstraction has 1003 states and 1396 transitions. [2021-08-29 03:13:29,263 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 03:13:29,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1396 transitions. [2021-08-29 03:13:29,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-08-29 03:13:29,265 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:29,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:13:29,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 03:13:29,265 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:29,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:29,266 INFO L82 PathProgramCache]: Analyzing trace with hash -585141096, now seen corresponding path program 1 times [2021-08-29 03:13:29,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:29,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046136172] [2021-08-29 03:13:29,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:29,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:29,299 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 402 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-08-29 03:13:29,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:29,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046136172] [2021-08-29 03:13:29,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046136172] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:29,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:29,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:29,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707885573] [2021-08-29 03:13:29,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:29,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:29,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:29,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:29,301 INFO L87 Difference]: Start difference. First operand 1003 states and 1396 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:29,481 INFO L93 Difference]: Finished difference Result 2126 states and 2985 transitions. [2021-08-29 03:13:29,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:29,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2021-08-29 03:13:29,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:29,484 INFO L225 Difference]: With dead ends: 2126 [2021-08-29 03:13:29,484 INFO L226 Difference]: Without dead ends: 1114 [2021-08-29 03:13:29,485 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:29,486 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 96 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 161.77ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:29,486 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 0 Invalid, 347 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [42 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 161.77ms Time] [2021-08-29 03:13:29,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2021-08-29 03:13:29,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1078. [2021-08-29 03:13:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1077 states have (on average 1.3853296193129063) internal successors, (1492), 1077 states have internal predecessors, (1492), 0 states have call successors, (0), 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 03:13:29,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1492 transitions. [2021-08-29 03:13:29,503 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1492 transitions. Word has length 206 [2021-08-29 03:13:29,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:29,503 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 1492 transitions. [2021-08-29 03:13:29,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:29,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1492 transitions. [2021-08-29 03:13:29,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-08-29 03:13:29,506 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:29,506 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, 1, 1, 1, 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 03:13:29,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-29 03:13:29,506 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:29,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:29,507 INFO L82 PathProgramCache]: Analyzing trace with hash 2110600453, now seen corresponding path program 1 times [2021-08-29 03:13:29,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:29,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552018960] [2021-08-29 03:13:29,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:29,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:29,545 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-08-29 03:13:29,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:29,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552018960] [2021-08-29 03:13:29,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552018960] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:29,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:29,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:29,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759477901] [2021-08-29 03:13:29,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:29,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:29,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:29,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:29,547 INFO L87 Difference]: Start difference. First operand 1078 states and 1492 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 03:13:29,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:29,715 INFO L93 Difference]: Finished difference Result 2276 states and 3174 transitions. [2021-08-29 03:13:29,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:29,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 230 [2021-08-29 03:13:29,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:29,719 INFO L225 Difference]: With dead ends: 2276 [2021-08-29 03:13:29,719 INFO L226 Difference]: Without dead ends: 1195 [2021-08-29 03:13:29,720 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 03:13:29,721 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 97 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.80ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 148.76ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:29,721 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 0 Invalid, 345 Unknown, 0 Unchecked, 0.80ms Time], IncrementalHoareTripleChecker [43 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 148.76ms Time] [2021-08-29 03:13:29,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2021-08-29 03:13:29,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1162. [2021-08-29 03:13:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1161 states have (on average 1.3807062876830318) internal successors, (1603), 1161 states have internal predecessors, (1603), 0 states have call successors, (0), 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 03:13:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1603 transitions. [2021-08-29 03:13:29,756 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1603 transitions. Word has length 230 [2021-08-29 03:13:29,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:29,757 INFO L470 AbstractCegarLoop]: Abstraction has 1162 states and 1603 transitions. [2021-08-29 03:13:29,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 03:13:29,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1603 transitions. [2021-08-29 03:13:29,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-08-29 03:13:29,759 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:29,759 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, 1, 1, 1, 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 03:13:29,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-29 03:13:29,760 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:29,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:29,760 INFO L82 PathProgramCache]: Analyzing trace with hash 77206407, now seen corresponding path program 1 times [2021-08-29 03:13:29,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:29,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088949485] [2021-08-29 03:13:29,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:29,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-08-29 03:13:29,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:29,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088949485] [2021-08-29 03:13:29,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088949485] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:29,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:29,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:29,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235183455] [2021-08-29 03:13:29,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:29,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:29,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:29,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:29,799 INFO L87 Difference]: Start difference. First operand 1162 states and 1603 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 03:13:29,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:29,972 INFO L93 Difference]: Finished difference Result 2444 states and 3399 transitions. [2021-08-29 03:13:29,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:29,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 230 [2021-08-29 03:13:29,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:29,976 INFO L225 Difference]: With dead ends: 2444 [2021-08-29 03:13:29,976 INFO L226 Difference]: Without dead ends: 1291 [2021-08-29 03:13:29,979 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 03:13:29,979 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 99 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.83ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 152.96ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:29,980 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 0 Invalid, 343 Unknown, 0 Unchecked, 0.83ms Time], IncrementalHoareTripleChecker [45 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 152.96ms Time] [2021-08-29 03:13:29,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2021-08-29 03:13:30,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1255. [2021-08-29 03:13:30,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.3835725677830941) internal successors, (1735), 1254 states have internal predecessors, (1735), 0 states have call successors, (0), 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 03:13:30,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1735 transitions. [2021-08-29 03:13:30,022 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1735 transitions. Word has length 230 [2021-08-29 03:13:30,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:30,023 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1735 transitions. [2021-08-29 03:13:30,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 03:13:30,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1735 transitions. [2021-08-29 03:13:30,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-08-29 03:13:30,026 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:30,026 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:30,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-29 03:13:30,026 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:30,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:30,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1837554521, now seen corresponding path program 1 times [2021-08-29 03:13:30,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:30,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453681554] [2021-08-29 03:13:30,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:30,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:30,065 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-08-29 03:13:30,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:30,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453681554] [2021-08-29 03:13:30,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453681554] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:30,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:30,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:30,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030049118] [2021-08-29 03:13:30,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:30,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:30,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:30,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:30,067 INFO L87 Difference]: Start difference. First operand 1255 states and 1735 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:30,239 INFO L93 Difference]: Finished difference Result 2627 states and 3657 transitions. [2021-08-29 03:13:30,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:30,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 260 [2021-08-29 03:13:30,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:30,243 INFO L225 Difference]: With dead ends: 2627 [2021-08-29 03:13:30,243 INFO L226 Difference]: Without dead ends: 1393 [2021-08-29 03:13:30,244 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 03:13:30,244 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 114 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.63ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 153.82ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:30,245 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 0 Invalid, 326 Unknown, 0 Unchecked, 0.63ms Time], IncrementalHoareTripleChecker [49 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 153.82ms Time] [2021-08-29 03:13:30,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2021-08-29 03:13:30,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1360. [2021-08-29 03:13:30,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1359 states have (on average 1.3914643119941132) internal successors, (1891), 1359 states have internal predecessors, (1891), 0 states have call successors, (0), 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 03:13:30,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1891 transitions. [2021-08-29 03:13:30,264 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1891 transitions. Word has length 260 [2021-08-29 03:13:30,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:30,264 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 1891 transitions. [2021-08-29 03:13:30,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1891 transitions. [2021-08-29 03:13:30,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-08-29 03:13:30,267 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:30,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:30,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-29 03:13:30,267 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:30,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:30,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1040904442, now seen corresponding path program 1 times [2021-08-29 03:13:30,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:30,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540401298] [2021-08-29 03:13:30,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:30,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-08-29 03:13:30,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:30,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540401298] [2021-08-29 03:13:30,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540401298] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:30,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:30,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:30,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684256555] [2021-08-29 03:13:30,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:30,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:30,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:30,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:30,308 INFO L87 Difference]: Start difference. First operand 1360 states and 1891 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:30,479 INFO L93 Difference]: Finished difference Result 2723 states and 3783 transitions. [2021-08-29 03:13:30,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:30,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 295 [2021-08-29 03:13:30,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:30,483 INFO L225 Difference]: With dead ends: 2723 [2021-08-29 03:13:30,483 INFO L226 Difference]: Without dead ends: 1390 [2021-08-29 03:13:30,484 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 03:13:30,484 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 119 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.59ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 153.10ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:30,484 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 0 Invalid, 320 Unknown, 0 Unchecked, 0.59ms Time], IncrementalHoareTripleChecker [51 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 153.10ms Time] [2021-08-29 03:13:30,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2021-08-29 03:13:30,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1357. [2021-08-29 03:13:30,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1356 states have (on average 1.381268436578171) internal successors, (1873), 1356 states have internal predecessors, (1873), 0 states have call successors, (0), 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 03:13:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1873 transitions. [2021-08-29 03:13:30,504 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1873 transitions. Word has length 295 [2021-08-29 03:13:30,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:30,505 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 1873 transitions. [2021-08-29 03:13:30,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1873 transitions. [2021-08-29 03:13:30,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-08-29 03:13:30,507 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:30,508 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:30,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-29 03:13:30,508 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:30,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:30,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1037565840, now seen corresponding path program 1 times [2021-08-29 03:13:30,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:30,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369663355] [2021-08-29 03:13:30,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:30,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:30,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1174 backedges. 561 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-08-29 03:13:30,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:30,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369663355] [2021-08-29 03:13:30,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369663355] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:30,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:30,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:30,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638193603] [2021-08-29 03:13:30,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:30,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:30,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:30,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:30,550 INFO L87 Difference]: Start difference. First operand 1357 states and 1873 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:30,735 INFO L93 Difference]: Finished difference Result 2705 states and 3732 transitions. [2021-08-29 03:13:30,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:30,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2021-08-29 03:13:30,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:30,739 INFO L225 Difference]: With dead ends: 2705 [2021-08-29 03:13:30,739 INFO L226 Difference]: Without dead ends: 1384 [2021-08-29 03:13:30,740 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.47ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:30,754 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 51 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 133.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.86ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 166.71ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:30,754 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 0 Invalid, 377 Unknown, 0 Unchecked, 0.86ms Time], IncrementalHoareTripleChecker [15 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 166.71ms Time] [2021-08-29 03:13:30,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2021-08-29 03:13:30,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1357. [2021-08-29 03:13:30,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1356 states have (on average 1.3613569321533923) internal successors, (1846), 1356 states have internal predecessors, (1846), 0 states have call successors, (0), 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 03:13:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1846 transitions. [2021-08-29 03:13:30,774 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1846 transitions. Word has length 305 [2021-08-29 03:13:30,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:30,774 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 1846 transitions. [2021-08-29 03:13:30,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:30,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1846 transitions. [2021-08-29 03:13:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-08-29 03:13:30,777 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:30,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:30,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-29 03:13:30,778 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:30,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:30,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1729384344, now seen corresponding path program 1 times [2021-08-29 03:13:30,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:30,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406734490] [2021-08-29 03:13:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:30,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:30,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 729 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-29 03:13:30,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:30,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406734490] [2021-08-29 03:13:30,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406734490] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:30,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:30,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:30,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129060080] [2021-08-29 03:13:30,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:30,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:30,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:30,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:30,833 INFO L87 Difference]: Start difference. First operand 1357 states and 1846 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:31,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:31,002 INFO L93 Difference]: Finished difference Result 2828 states and 3822 transitions. [2021-08-29 03:13:31,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:31,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2021-08-29 03:13:31,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:31,007 INFO L225 Difference]: With dead ends: 2828 [2021-08-29 03:13:31,007 INFO L226 Difference]: Without dead ends: 1507 [2021-08-29 03:13:31,008 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 03:13:31,010 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 127 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.22ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 149.83ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:31,010 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 0 Invalid, 290 Unknown, 0 Unchecked, 1.22ms Time], IncrementalHoareTripleChecker [48 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 149.83ms Time] [2021-08-29 03:13:31,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2021-08-29 03:13:31,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1402. [2021-08-29 03:13:31,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 1.3604568165596003) internal successors, (1906), 1401 states have internal predecessors, (1906), 0 states have call successors, (0), 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 03:13:31,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1906 transitions. [2021-08-29 03:13:31,030 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1906 transitions. Word has length 332 [2021-08-29 03:13:31,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:31,031 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 1906 transitions. [2021-08-29 03:13:31,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:13:31,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1906 transitions. [2021-08-29 03:13:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-08-29 03:13:31,034 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:31,034 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:31,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-29 03:13:31,034 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:31,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:31,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1837144220, now seen corresponding path program 1 times [2021-08-29 03:13:31,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:31,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581324040] [2021-08-29 03:13:31,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:31,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:31,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2021-08-29 03:13:31,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:31,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581324040] [2021-08-29 03:13:31,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581324040] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:31,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:31,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:31,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782871863] [2021-08-29 03:13:31,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:31,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:31,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:31,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:31,092 INFO L87 Difference]: Start difference. First operand 1402 states and 1906 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 03:13:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:31,325 INFO L93 Difference]: Finished difference Result 3939 states and 5384 transitions. [2021-08-29 03:13:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:31,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 333 [2021-08-29 03:13:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:31,331 INFO L225 Difference]: With dead ends: 3939 [2021-08-29 03:13:31,331 INFO L226 Difference]: Without dead ends: 2573 [2021-08-29 03:13:31,333 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.21ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:31,333 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 82 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 162.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 207.11ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:31,334 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 0 Invalid, 448 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 207.11ms Time] [2021-08-29 03:13:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2021-08-29 03:13:31,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 2571. [2021-08-29 03:13:31,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2570 states have (on average 1.367704280155642) internal successors, (3515), 2570 states have internal predecessors, (3515), 0 states have call successors, (0), 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 03:13:31,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3515 transitions. [2021-08-29 03:13:31,393 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3515 transitions. Word has length 333 [2021-08-29 03:13:31,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:31,394 INFO L470 AbstractCegarLoop]: Abstraction has 2571 states and 3515 transitions. [2021-08-29 03:13:31,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 03:13:31,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3515 transitions. [2021-08-29 03:13:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-08-29 03:13:31,398 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:31,399 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:31,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-29 03:13:31,399 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:31,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:31,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1564055932, now seen corresponding path program 1 times [2021-08-29 03:13:31,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:31,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766934042] [2021-08-29 03:13:31,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:31,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-08-29 03:13:31,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:31,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766934042] [2021-08-29 03:13:31,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766934042] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 03:13:31,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728177691] [2021-08-29 03:13:31,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:31,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 03:13:31,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:13:31,467 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 03:13:31,468 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 03:13:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:31,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 03:13:31,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:13:32,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-08-29 03:13:32,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:13:32,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-08-29 03:13:32,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728177691] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 03:13:32,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 03:13:32,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-08-29 03:13:32,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974436132] [2021-08-29 03:13:32,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:13:32,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:32,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:13:32,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:13:32,669 INFO L87 Difference]: Start difference. First operand 2571 states and 3515 transitions. Second operand has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 0 states have call successors, (0), 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 03:13:33,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:33,224 INFO L93 Difference]: Finished difference Result 5099 states and 6965 transitions. [2021-08-29 03:13:33,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 03:13:33,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 0 states have call successors, (0), 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 343 [2021-08-29 03:13:33,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:33,233 INFO L225 Difference]: With dead ends: 5099 [2021-08-29 03:13:33,233 INFO L226 Difference]: Without dead ends: 3862 [2021-08-29 03:13:33,235 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 16.80ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-29 03:13:33,235 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 355 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 387.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.23ms SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 494.20ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:33,235 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 0 Invalid, 1204 Unknown, 0 Unchecked, 2.23ms Time], IncrementalHoareTripleChecker [68 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 494.20ms Time] [2021-08-29 03:13:33,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3862 states. [2021-08-29 03:13:33,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3862 to 2835. [2021-08-29 03:13:33,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2834 states have (on average 1.3514467184191954) internal successors, (3830), 2834 states have internal predecessors, (3830), 0 states have call successors, (0), 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 03:13:33,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 3830 transitions. [2021-08-29 03:13:33,280 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 3830 transitions. Word has length 343 [2021-08-29 03:13:33,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:33,280 INFO L470 AbstractCegarLoop]: Abstraction has 2835 states and 3830 transitions. [2021-08-29 03:13:33,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 0 states have call successors, (0), 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 03:13:33,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 3830 transitions. [2021-08-29 03:13:33,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2021-08-29 03:13:33,285 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:33,285 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:33,322 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 03:13:33,502 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,SelfDestructingSolverStorable20 [2021-08-29 03:13:33,502 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:33,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:33,503 INFO L82 PathProgramCache]: Analyzing trace with hash 61848643, now seen corresponding path program 1 times [2021-08-29 03:13:33,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:33,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052582698] [2021-08-29 03:13:33,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:33,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:33,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 953 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-29 03:13:33,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:33,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052582698] [2021-08-29 03:13:33,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052582698] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 03:13:33,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795928659] [2021-08-29 03:13:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:33,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 03:13:33,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:13:33,549 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 03:13:33,578 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 03:13:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:33,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 03:13:33,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:13:34,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 953 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-29 03:13:34,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:13:34,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 953 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-08-29 03:13:34,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795928659] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 03:13:34,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 03:13:34,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-08-29 03:13:34,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859523100] [2021-08-29 03:13:34,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:13:34,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:34,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:13:34,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:13:34,796 INFO L87 Difference]: Start difference. First operand 2835 states and 3830 transitions. Second operand has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 0 states have call successors, (0), 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 03:13:35,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:35,178 INFO L93 Difference]: Finished difference Result 6504 states and 8791 transitions. [2021-08-29 03:13:35,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 03:13:35,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 0 states have call successors, (0), 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 369 [2021-08-29 03:13:35,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:35,187 INFO L225 Difference]: With dead ends: 6504 [2021-08-29 03:13:35,187 INFO L226 Difference]: Without dead ends: 3698 [2021-08-29 03:13:35,190 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 737 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.99ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 03:13:35,191 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 460 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 258.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.87ms SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 328.63ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:35,191 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [460 Valid, 0 Invalid, 652 Unknown, 0 Unchecked, 1.87ms Time], IncrementalHoareTripleChecker [110 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 328.63ms Time] [2021-08-29 03:13:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2021-08-29 03:13:35,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 2972. [2021-08-29 03:13:35,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 2971 states have (on average 1.3382699427802087) internal successors, (3976), 2971 states have internal predecessors, (3976), 0 states have call successors, (0), 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 03:13:35,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 3976 transitions. [2021-08-29 03:13:35,233 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 3976 transitions. Word has length 369 [2021-08-29 03:13:35,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:35,233 INFO L470 AbstractCegarLoop]: Abstraction has 2972 states and 3976 transitions. [2021-08-29 03:13:35,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 0 states have call successors, (0), 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 03:13:35,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 3976 transitions. [2021-08-29 03:13:35,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-08-29 03:13:35,238 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:35,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:35,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-29 03:13:35,455 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,SelfDestructingSolverStorable21 [2021-08-29 03:13:35,456 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:35,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:35,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1613450848, now seen corresponding path program 1 times [2021-08-29 03:13:35,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:35,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762924100] [2021-08-29 03:13:35,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:35,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1968 backedges. 883 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-08-29 03:13:35,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:35,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762924100] [2021-08-29 03:13:35,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762924100] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:13:35,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:13:35,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:13:35,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072351282] [2021-08-29 03:13:35,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:13:35,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:35,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:13:35,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:13:35,503 INFO L87 Difference]: Start difference. First operand 2972 states and 3976 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 03:13:35,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:35,711 INFO L93 Difference]: Finished difference Result 5654 states and 7451 transitions. [2021-08-29 03:13:35,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:13:35,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 408 [2021-08-29 03:13:35,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:35,727 INFO L225 Difference]: With dead ends: 5654 [2021-08-29 03:13:35,727 INFO L226 Difference]: Without dead ends: 1598 [2021-08-29 03:13:35,730 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 03:13:35,731 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 39 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 133.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.48ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 187.85ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:35,731 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 0 Invalid, 372 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [4 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 187.85ms Time] [2021-08-29 03:13:35,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2021-08-29 03:13:35,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1532. [2021-08-29 03:13:35,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.3383409536250817) internal successors, (2049), 1531 states have internal predecessors, (2049), 0 states have call successors, (0), 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 03:13:35,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 2049 transitions. [2021-08-29 03:13:35,758 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 2049 transitions. Word has length 408 [2021-08-29 03:13:35,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:35,758 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 2049 transitions. [2021-08-29 03:13:35,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 03:13:35,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 2049 transitions. [2021-08-29 03:13:35,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2021-08-29 03:13:35,761 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:13:35,761 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:35,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-29 03:13:35,762 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 03:13:35,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:13:35,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1952423320, now seen corresponding path program 1 times [2021-08-29 03:13:35,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:13:35,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747630149] [2021-08-29 03:13:35,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:35,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:13:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:35,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2709 backedges. 1570 proven. 14 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2021-08-29 03:13:35,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:13:35,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747630149] [2021-08-29 03:13:35,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747630149] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 03:13:35,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976951375] [2021-08-29 03:13:35,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:13:35,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 03:13:35,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:13:35,809 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 03:13:35,811 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 03:13:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:13:35,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 03:13:35,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:13:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2709 backedges. 1570 proven. 14 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2021-08-29 03:13:36,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:13:37,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2709 backedges. 1570 proven. 14 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2021-08-29 03:13:37,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976951375] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 03:13:37,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 03:13:37,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-08-29 03:13:37,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818266559] [2021-08-29 03:13:37,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:13:37,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:13:37,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:13:37,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:13:37,277 INFO L87 Difference]: Start difference. First operand 1532 states and 2049 transitions. Second operand has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 0 states have call successors, (0), 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 03:13:37,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:13:37,591 INFO L93 Difference]: Finished difference Result 1865 states and 2499 transitions. [2021-08-29 03:13:37,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 03:13:37,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 0 states have call successors, (0), 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 492 [2021-08-29 03:13:37,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:13:37,592 INFO L225 Difference]: With dead ends: 1865 [2021-08-29 03:13:37,592 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 03:13:37,593 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 990 GetRequests, 984 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 15.39ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-29 03:13:37,594 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 98 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 236.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.27ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 295.93ms IncrementalHoareTripleChecker+Time [2021-08-29 03:13:37,594 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 0 Invalid, 786 Unknown, 0 Unchecked, 1.27ms Time], IncrementalHoareTripleChecker [35 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 295.93ms Time] [2021-08-29 03:13:37,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 03:13:37,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 03:13:37,594 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 03:13:37,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 03:13:37,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 492 [2021-08-29 03:13:37,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:13:37,594 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 03:13:37,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 0 states have call successors, (0), 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 03:13:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 03:13:37,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 03:13:37,596 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 03:13:37,632 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 03:13:37,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 03:13:37,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 03:13:37,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:37,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 03:13:38,607 INFO L854 garLoopResultBuilder]: At program point L531(lines 96 597) the Hoare annotation is: (let ((.cse0 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse4 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse5 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse3 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse12 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse7 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse8 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse9 (<= 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)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse6 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse10 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse11 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4384) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1)) (and .cse7 .cse8 .cse6) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse0 .cse6 .cse2) (and .cse4 .cse5 .cse9 .cse1 .cse2) (and .cse10 .cse2 .cse3 .cse11) (and .cse6 .cse2 .cse12) (and (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse2 .cse3) (and .cse1 .cse12) (and .cse7 .cse8 .cse9 .cse1 .cse2) (and .cse6 .cse10 .cse11))) [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 543) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L135(lines 135 554) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 565) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L861 garLoopResultBuilder]: At program point L598(lines 95 599) the Hoare annotation is: true [2021-08-29 03:13:38,607 INFO L854 garLoopResultBuilder]: At program point L136(lines 132 555) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (< 4384 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 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 372) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L368-2(lines 368 372) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L567(lines 567 595) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 542) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L138(lines 138 553) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 564) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L568(lines 568 592) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L502-1(lines 200 530) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L337(lines 337 342) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L304-1(lines 304 318) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L854 garLoopResultBuilder]: At program point L205(lines 102 565) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) [2021-08-29 03:13:38,607 INFO L854 garLoopResultBuilder]: At program point L172(lines 168 543) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L602(lines 602 606) no Hoare annotation was computed. [2021-08-29 03:13:38,607 INFO L858 garLoopResultBuilder]: For program point L569(lines 569 578) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L602-2(lines 602 606) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L569-2(lines 568 590) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 276) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 541) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 552) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L108(lines 108 563) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 575) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 444) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L854 garLoopResultBuilder]: At program point L142(lines 138 553) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 84) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 477) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 312) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 306 318) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L507-1(lines 507 511) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 412) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 214) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 540) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 551) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 200 530) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L111(lines 111 562) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L854 garLoopResultBuilder]: At program point L178(lines 174 541) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 83) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L79-2(lines 76 84) no Hoare annotation was computed. [2021-08-29 03:13:38,608 INFO L861 garLoopResultBuilder]: At program point L609(lines 9 611) the Hoare annotation is: true [2021-08-29 03:13:38,608 INFO L858 garLoopResultBuilder]: For program point L246(lines 246 251) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 539) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 550) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 561) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 482) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L478-2(lines 478 482) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L854 garLoopResultBuilder]: At program point L148(lines 144 551) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)))) [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 384) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 351) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 289) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L854 garLoopResultBuilder]: At program point L348(lines 62 610) the Hoare annotation is: false [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 538) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 549) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 560) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L580(lines 580 586) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L514(lines 514 518) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L514-2(lines 514 518) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L854 garLoopResultBuilder]: At program point L184(lines 180 539) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (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)) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2021-08-29 03:13:38,609 INFO L854 garLoopResultBuilder]: At program point L118(lines 114 561) 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 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L449(lines 449 453) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L284(lines 284 288) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L284-2(lines 200 530) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 94) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 537) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 548) no Hoare annotation was computed. [2021-08-29 03:13:38,609 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 559) no Hoare annotation was computed. [2021-08-29 03:13:38,610 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2021-08-29 03:13:38,614 INFO L858 garLoopResultBuilder]: For program point L352(lines 352 356) no Hoare annotation was computed. [2021-08-29 03:13:38,614 INFO L858 garLoopResultBuilder]: For program point L486-1(lines 486 498) no Hoare annotation was computed. [2021-08-29 03:13:38,614 INFO L858 garLoopResultBuilder]: For program point L420(lines 420 424) no Hoare annotation was computed. [2021-08-29 03:13:38,614 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 239) no Hoare annotation was computed. [2021-08-29 03:13:38,614 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 536) no Hoare annotation was computed. [2021-08-29 03:13:38,614 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 547) no Hoare annotation was computed. [2021-08-29 03:13:38,614 INFO L858 garLoopResultBuilder]: For program point L222-2(lines 200 530) no Hoare annotation was computed. [2021-08-29 03:13:38,614 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 558) no Hoare annotation was computed. [2021-08-29 03:13:38,614 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 03:13:38,614 INFO L854 garLoopResultBuilder]: At program point L190(lines 186 537) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (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) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2021-08-29 03:13:38,614 INFO L854 garLoopResultBuilder]: At program point L124(lines 120 559) the Hoare annotation is: (and (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (< ULTIMATE.start_ssl3_connect_~s__state~0 4400)) [2021-08-29 03:13:38,614 INFO L861 garLoopResultBuilder]: At program point L620(lines 612 622) the Hoare annotation is: true [2021-08-29 03:13:38,614 INFO L858 garLoopResultBuilder]: For program point L521(lines 521 525) no Hoare annotation was computed. [2021-08-29 03:13:38,614 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 229) no Hoare annotation was computed. [2021-08-29 03:13:38,615 INFO L858 garLoopResultBuilder]: For program point L489(lines 489 494) no Hoare annotation was computed. [2021-08-29 03:13:38,615 INFO L858 garLoopResultBuilder]: For program point L456(lines 456 467) no Hoare annotation was computed. [2021-08-29 03:13:38,615 INFO L858 garLoopResultBuilder]: For program point L456-1(lines 456 467) no Hoare annotation was computed. [2021-08-29 03:13:38,615 INFO L858 garLoopResultBuilder]: For program point L192(lines 192 535) no Hoare annotation was computed. [2021-08-29 03:13:38,615 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 546) no Hoare annotation was computed. [2021-08-29 03:13:38,615 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 557) no Hoare annotation was computed. [2021-08-29 03:13:38,615 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 395) no Hoare annotation was computed. [2021-08-29 03:13:38,615 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2021-08-29 03:13:38,615 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 200 530) no Hoare annotation was computed. [2021-08-29 03:13:38,615 INFO L854 garLoopResultBuilder]: At program point L193(lines 192 535) the Hoare annotation is: (let ((.cse0 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3)) (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) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2021-08-29 03:13:38,616 INFO L854 garLoopResultBuilder]: At program point L160(lines 150 549) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)))) [2021-08-29 03:13:38,616 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 03:13:38,616 INFO L858 garLoopResultBuilder]: For program point L458(lines 458 464) no Hoare annotation was computed. [2021-08-29 03:13:38,616 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 264) no Hoare annotation was computed. [2021-08-29 03:13:38,616 INFO L858 garLoopResultBuilder]: For program point L260-2(lines 200 530) no Hoare annotation was computed. [2021-08-29 03:13:38,616 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 534) no Hoare annotation was computed. [2021-08-29 03:13:38,616 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 545) no Hoare annotation was computed. [2021-08-29 03:13:38,616 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 556) no Hoare annotation was computed. [2021-08-29 03:13:38,616 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 62 610) no Hoare annotation was computed. [2021-08-29 03:13:38,616 INFO L858 garLoopResultBuilder]: For program point L295(lines 295 299) no Hoare annotation was computed. [2021-08-29 03:13:38,617 INFO L858 garLoopResultBuilder]: For program point L295-2(lines 295 299) no Hoare annotation was computed. [2021-08-29 03:13:38,617 INFO L861 garLoopResultBuilder]: At program point L196(lines 195 534) the Hoare annotation is: true [2021-08-29 03:13:38,617 INFO L854 garLoopResultBuilder]: At program point L130(lines 126 557) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (< 4384 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1 .cse2))) [2021-08-29 03:13:38,617 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-08-29 03:13:38,617 INFO L858 garLoopResultBuilder]: For program point L428(lines 428 432) no Hoare annotation was computed. [2021-08-29 03:13:38,617 INFO L858 garLoopResultBuilder]: For program point L428-2(lines 200 530) no Hoare annotation was computed. [2021-08-29 03:13:38,617 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 235) no Hoare annotation was computed. [2021-08-29 03:13:38,617 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 03:13:38,617 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 608) no Hoare annotation was computed. [2021-08-29 03:13:38,617 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 367) no Hoare annotation was computed. [2021-08-29 03:13:38,618 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 544) no Hoare annotation was computed. [2021-08-29 03:13:38,618 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 555) no Hoare annotation was computed. [2021-08-29 03:13:38,618 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 566) no Hoare annotation was computed. [2021-08-29 03:13:38,618 INFO L858 garLoopResultBuilder]: For program point L397(lines 397 402) no Hoare annotation was computed. [2021-08-29 03:13:38,618 INFO L858 garLoopResultBuilder]: For program point L397-2(lines 397 402) no Hoare annotation was computed. [2021-08-29 03:13:38,618 INFO L861 garLoopResultBuilder]: At program point L199(lines 198 533) the Hoare annotation is: true [2021-08-29 03:13:38,618 INFO L854 garLoopResultBuilder]: At program point L166(lines 162 545) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2021-08-29 03:13:38,618 INFO L854 garLoopResultBuilder]: At program point L100(lines 99 566) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2021-08-29 03:13:38,623 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 03:13:38,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:13:38 BoogieIcfgContainer [2021-08-29 03:13:38,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 03:13:38,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 03:13:38,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 03:13:38,646 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 03:13:38,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:13:25" (3/4) ... [2021-08-29 03:13:38,648 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 03:13:38,661 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 03:13:38,662 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 03:13:38,662 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 03:13:38,662 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 03:13:38,724 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 03:13:38,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 03:13:38,724 INFO L158 Benchmark]: Toolchain (without parser) took 13766.90ms. Allocated memory was 48.2MB in the beginning and 203.4MB in the end (delta: 155.2MB). Free memory was 23.2MB in the beginning and 166.6MB in the end (delta: -143.5MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-08-29 03:13:38,724 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 48.2MB. Free memory was 30.1MB in the beginning and 30.1MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:13:38,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.88ms. Allocated memory was 48.2MB in the beginning and 65.0MB in the end (delta: 16.8MB). Free memory was 23.0MB in the beginning and 46.4MB in the end (delta: -23.5MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2021-08-29 03:13:38,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.18ms. Allocated memory is still 65.0MB. Free memory was 46.4MB in the beginning and 43.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:13:38,726 INFO L158 Benchmark]: Boogie Preprocessor took 46.82ms. Allocated memory is still 65.0MB. Free memory was 43.9MB in the beginning and 42.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:13:38,726 INFO L158 Benchmark]: RCFGBuilder took 256.13ms. Allocated memory is still 65.0MB. Free memory was 42.1MB in the beginning and 39.0MB in the end (delta: 3.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-29 03:13:38,726 INFO L158 Benchmark]: TraceAbstraction took 12998.92ms. Allocated memory was 65.0MB in the beginning and 203.4MB in the end (delta: 138.4MB). Free memory was 38.8MB in the beginning and 175.0MB in the end (delta: -136.2MB). Peak memory consumption was 124.5MB. Max. memory is 16.1GB. [2021-08-29 03:13:38,726 INFO L158 Benchmark]: Witness Printer took 77.79ms. Allocated memory is still 203.4MB. Free memory was 175.0MB in the beginning and 166.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 03:13:38,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 48.2MB. Free memory was 30.1MB in the beginning and 30.1MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.88ms. Allocated memory was 48.2MB in the beginning and 65.0MB in the end (delta: 16.8MB). Free memory was 23.0MB in the beginning and 46.4MB in the end (delta: -23.5MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.18ms. Allocated memory is still 65.0MB. Free memory was 46.4MB in the beginning and 43.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.82ms. Allocated memory is still 65.0MB. Free memory was 43.9MB in the beginning and 42.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 256.13ms. Allocated memory is still 65.0MB. Free memory was 42.1MB in the beginning and 39.0MB in the end (delta: 3.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 12998.92ms. Allocated memory was 65.0MB in the beginning and 203.4MB in the end (delta: 138.4MB). Free memory was 38.8MB in the beginning and 175.0MB in the end (delta: -136.2MB). Peak memory consumption was 124.5MB. Max. memory is 16.1GB. * Witness Printer took 77.79ms. Allocated memory is still 203.4MB. Free memory was 175.0MB in the beginning and 166.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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: 608]: 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, 124 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12937.20ms, OverallIterations: 24, TraceHistogramMax: 19, EmptinessCheckTime: 58.39ms, AutomataDifference: 5592.19ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 797.27ms, InitialAbstractionConstructionTime: 8.47ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2331 SdHoareTripleChecker+Valid, 4851.90ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2331 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3803.82ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2580 mSDsCounter, 684 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9409 IncrementalHoareTripleChecker+Invalid, 10093 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 684 mSolverCounterUnsat, 0 mSDtfsCounter, 9409 mSolverCounterSat, 26.03ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2487 GetRequests, 2449 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 77.82ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2972occurred in iteration=22, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 507.79ms AutomataMinimizationTime, 24 MinimizatonAttempts, 2215 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 107 NumberOfFragments, 464 HoareAnnotationTreeSize, 22 FomulaSimplifications, 5052 FormulaSimplificationTreeSizeReduction, 157.90ms HoareSimplificationTime, 22 FomulaSimplificationsInter, 1586 FormulaSimplificationTreeSizeReductionInter, 630.54ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 103.72ms SsaConstructionTime, 466.96ms SatisfiabilityAnalysisTime, 4422.44ms InterpolantComputationTime, 6094 NumberOfCodeBlocks, 6094 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 7268 ConstructedInterpolants, 0 QuantifiedInterpolants, 9050 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2004 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 30 InterpolantComputations, 21 PerfectInterpolantSequences, 29234/29327 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: 198]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 612]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: ((s__state <= 4480 && blastFlag == 2) && 4432 <= s__state) || (((s__state <= 4480 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: ((((((((((((((4400 == s__state && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4) || (((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && s__s3__tmp__next_state___0 <= 3)) || (s__state == 4384 && blastFlag == 1)) || ((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2)) || (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)) || ((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)) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: (((4352 <= s__state && s__state <= 4352) && blastFlag == 2) && s__s3__tmp__next_state___0 <= 3) || ((((4352 <= s__state && s__state <= 4352) && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: (((s__state <= 4512 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4) || ((blastFlag == 2 && s__state <= 4512) && 4432 <= s__state) - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: (((s__state <= 4512 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4) || ((blastFlag == 2 && s__state <= 4512) && 4432 <= s__state) - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: blastFlag == 0 && s__state <= 4352 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 0) && s__state < 4400 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: ((((s__state <= 4432 && 4384 < s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && blastFlag <= 4) || (((blastFlag == 2 && s__state <= 4432) && 4384 < s__state) && s__hit == 0) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: ((s__state <= 4560 && 4560 <= s__state) && blastFlag == 2) || ((((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: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4528) || ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4528) - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && 4432 <= s__state) && s__state <= 4464) || (((4432 <= s__state && s__state <= 4464) && s__hit == 0) && blastFlag <= 4) - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: (4352 <= s__state && blastFlag == 1) && s__state < 4400 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: ((s__state <= 4432 && 4384 < s__state) && s__hit == 0) && blastFlag <= 4 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: (((s__state <= 4448 && 4432 <= s__state) && s__hit == 0) && blastFlag <= 4) || ((blastFlag == 2 && s__state <= 4448) && 4432 <= s__state) - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: ((((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)) || ((s__state <= 4560 && blastFlag == 2) && 4432 <= s__state) RESULT: Ultimate proved your program to be correct! [2021-08-29 03:13:38,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...