./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer --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 51c32a91c699292d3a71549ca427833cc8b88f69 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:27:51,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:27:51,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:27:52,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:27:52,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:27:52,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:27:52,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:27:52,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:27:52,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:27:52,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:27:52,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:27:52,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:27:52,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:27:52,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:27:52,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:27:52,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:27:52,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:27:52,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:27:52,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:27:52,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:27:52,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:27:52,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:27:52,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:27:52,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:27:52,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:27:52,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:27:52,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:27:52,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:27:52,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:27:52,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:27:52,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:27:52,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:27:52,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:27:52,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:27:52,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:27:52,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:27:52,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:27:52,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:27:52,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:27:52,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:27:52,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:27:52,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:27:52,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:27:52,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:27:52,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:27:52,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:27:52,191 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:27:52,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:27:52,192 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:27:52,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:27:52,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:27:52,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:27:52,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:27:52,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:27:52,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:27:52,196 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:27:52,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:27:52,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:27:52,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:27:52,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:27:52,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:27:52,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:27:52,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:27:52,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:27:52,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:27:52,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:27:52,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:27:52,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:27:52,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:27:52,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:27:52,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:27:52,202 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:/tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51c32a91c699292d3a71549ca427833cc8b88f69 [2020-11-29 23:27:52,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:27:52,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:27:52,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:27:52,629 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:27:52,630 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:27:52,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c [2020-11-29 23:27:52,744 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/data/09c93a87f/fc3718175bc345869520e516e62b8ef4/FLAGf2159e2db [2020-11-29 23:27:53,404 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:27:53,405 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/sv-benchmarks/c/openssl-simplified/s3_clnt_4.cil-1.c [2020-11-29 23:27:53,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/data/09c93a87f/fc3718175bc345869520e516e62b8ef4/FLAGf2159e2db [2020-11-29 23:27:53,738 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/data/09c93a87f/fc3718175bc345869520e516e62b8ef4 [2020-11-29 23:27:53,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:27:53,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:27:53,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:27:53,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:27:53,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:27:53,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:27:53" (1/1) ... [2020-11-29 23:27:53,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6c39f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:53, skipping insertion in model container [2020-11-29 23:27:53,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:27:53" (1/1) ... [2020-11-29 23:27:53,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:27:53,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:27:54,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:27:54,261 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:27:54,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:27:54,346 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:27:54,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54 WrapperNode [2020-11-29 23:27:54,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:27:54,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:27:54,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:27:54,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:27:54,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54" (1/1) ... [2020-11-29 23:27:54,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54" (1/1) ... [2020-11-29 23:27:54,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:27:54,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:27:54,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:27:54,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:27:54,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54" (1/1) ... [2020-11-29 23:27:54,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54" (1/1) ... [2020-11-29 23:27:54,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54" (1/1) ... [2020-11-29 23:27:54,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54" (1/1) ... [2020-11-29 23:27:54,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54" (1/1) ... [2020-11-29 23:27:54,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54" (1/1) ... [2020-11-29 23:27:54,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54" (1/1) ... [2020-11-29 23:27:54,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:27:54,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:27:54,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:27:54,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:27:54,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:27:54,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:27:54,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:27:54,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:27:54,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:27:54,804 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 23:27:55,962 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-11-29 23:27:55,962 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-11-29 23:27:55,972 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:27:55,973 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 23:27:55,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:27:55 BoogieIcfgContainer [2020-11-29 23:27:55,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:27:55,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:27:55,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:27:55,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:27:55,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:27:53" (1/3) ... [2020-11-29 23:27:55,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dc2e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:27:55, skipping insertion in model container [2020-11-29 23:27:55,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:27:54" (2/3) ... [2020-11-29 23:27:55,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dc2e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:27:55, skipping insertion in model container [2020-11-29 23:27:55,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:27:55" (3/3) ... [2020-11-29 23:27:55,987 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-1.c [2020-11-29 23:27:56,001 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:27:56,007 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:27:56,022 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:27:56,065 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:27:56,069 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:27:56,069 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:27:56,070 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:27:56,071 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:27:56,071 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:27:56,071 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:27:56,071 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:27:56,099 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-11-29 23:27:56,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 23:27:56,114 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:56,115 INFO L422 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] [2020-11-29 23:27:56,116 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:56,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:56,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2020-11-29 23:27:56,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:56,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346514424] [2020-11-29 23:27:56,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:27:56,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346514424] [2020-11-29 23:27:56,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:27:56,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:27:56,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337515232] [2020-11-29 23:27:56,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:27:56,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:56,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:27:56,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:56,473 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2020-11-29 23:27:56,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:56,950 INFO L93 Difference]: Finished difference Result 253 states and 428 transitions. [2020-11-29 23:27:56,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:27:56,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-29 23:27:56,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:56,975 INFO L225 Difference]: With dead ends: 253 [2020-11-29 23:27:56,975 INFO L226 Difference]: Without dead ends: 115 [2020-11-29 23:27:56,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:57,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-29 23:27:57,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-29 23:27:57,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-29 23:27:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2020-11-29 23:27:57,076 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2020-11-29 23:27:57,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:57,078 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2020-11-29 23:27:57,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:27:57,078 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2020-11-29 23:27:57,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-29 23:27:57,084 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:57,119 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:57,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:27:57,120 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:57,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:57,125 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2020-11-29 23:27:57,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:57,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087778483] [2020-11-29 23:27:57,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:57,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:27:57,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087778483] [2020-11-29 23:27:57,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:27:57,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:27:57,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028600778] [2020-11-29 23:27:57,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:27:57,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:57,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:27:57,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:57,326 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand 3 states. [2020-11-29 23:27:57,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:57,629 INFO L93 Difference]: Finished difference Result 238 states and 360 transitions. [2020-11-29 23:27:57,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:27:57,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-29 23:27:57,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:57,632 INFO L225 Difference]: With dead ends: 238 [2020-11-29 23:27:57,635 INFO L226 Difference]: Without dead ends: 133 [2020-11-29 23:27:57,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:57,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-11-29 23:27:57,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2020-11-29 23:27:57,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-29 23:27:57,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2020-11-29 23:27:57,656 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2020-11-29 23:27:57,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:57,657 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2020-11-29 23:27:57,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:27:57,657 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2020-11-29 23:27:57,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 23:27:57,660 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:57,660 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:57,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:27:57,661 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:57,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:57,662 INFO L82 PathProgramCache]: Analyzing trace with hash 356453796, now seen corresponding path program 1 times [2020-11-29 23:27:57,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:57,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835245227] [2020-11-29 23:27:57,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 23:27:57,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835245227] [2020-11-29 23:27:57,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:27:57,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:27:57,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811942057] [2020-11-29 23:27:57,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:27:57,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:57,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:27:57,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:57,758 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand 3 states. [2020-11-29 23:27:58,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:58,036 INFO L93 Difference]: Finished difference Result 271 states and 406 transitions. [2020-11-29 23:27:58,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:27:58,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-29 23:27:58,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:58,039 INFO L225 Difference]: With dead ends: 271 [2020-11-29 23:27:58,039 INFO L226 Difference]: Without dead ends: 151 [2020-11-29 23:27:58,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:58,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-11-29 23:27:58,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2020-11-29 23:27:58,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-11-29 23:27:58,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2020-11-29 23:27:58,056 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2020-11-29 23:27:58,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:58,056 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2020-11-29 23:27:58,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:27:58,057 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2020-11-29 23:27:58,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-29 23:27:58,060 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:58,060 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:58,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 23:27:58,060 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:58,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:58,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1231505257, now seen corresponding path program 1 times [2020-11-29 23:27:58,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:58,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304343823] [2020-11-29 23:27:58,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-29 23:27:58,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304343823] [2020-11-29 23:27:58,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:27:58,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:27:58,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151267409] [2020-11-29 23:27:58,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:27:58,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:58,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:27:58,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:58,229 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand 3 states. [2020-11-29 23:27:58,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:58,563 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2020-11-29 23:27:58,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:27:58,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-29 23:27:58,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:58,566 INFO L225 Difference]: With dead ends: 335 [2020-11-29 23:27:58,567 INFO L226 Difference]: Without dead ends: 197 [2020-11-29 23:27:58,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:58,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-11-29 23:27:58,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2020-11-29 23:27:58,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-11-29 23:27:58,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2020-11-29 23:27:58,587 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2020-11-29 23:27:58,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:58,588 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2020-11-29 23:27:58,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:27:58,589 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2020-11-29 23:27:58,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-29 23:27:58,593 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:58,593 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:58,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 23:27:58,594 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:58,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:58,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1258023705, now seen corresponding path program 1 times [2020-11-29 23:27:58,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:58,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572284822] [2020-11-29 23:27:58,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:58,679 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-29 23:27:58,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572284822] [2020-11-29 23:27:58,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:27:58,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:27:58,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299365024] [2020-11-29 23:27:58,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:27:58,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:58,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:27:58,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:58,683 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand 3 states. [2020-11-29 23:27:58,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:58,896 INFO L93 Difference]: Finished difference Result 391 states and 557 transitions. [2020-11-29 23:27:58,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:27:58,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-29 23:27:58,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:58,898 INFO L225 Difference]: With dead ends: 391 [2020-11-29 23:27:58,899 INFO L226 Difference]: Without dead ends: 213 [2020-11-29 23:27:58,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:58,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-11-29 23:27:58,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 207. [2020-11-29 23:27:58,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-11-29 23:27:58,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2020-11-29 23:27:58,923 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2020-11-29 23:27:58,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:58,924 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2020-11-29 23:27:58,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:27:58,925 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2020-11-29 23:27:58,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-29 23:27:58,927 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:58,928 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:58,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 23:27:58,928 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:58,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:58,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1378844437, now seen corresponding path program 1 times [2020-11-29 23:27:58,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:58,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397892972] [2020-11-29 23:27:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-29 23:27:59,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397892972] [2020-11-29 23:27:59,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:27:59,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:27:59,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308245482] [2020-11-29 23:27:59,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:27:59,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:59,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:27:59,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:59,070 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand 3 states. [2020-11-29 23:27:59,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:59,325 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2020-11-29 23:27:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:27:59,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-11-29 23:27:59,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:59,328 INFO L225 Difference]: With dead ends: 428 [2020-11-29 23:27:59,328 INFO L226 Difference]: Without dead ends: 231 [2020-11-29 23:27:59,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:59,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-11-29 23:27:59,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2020-11-29 23:27:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-11-29 23:27:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2020-11-29 23:27:59,355 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2020-11-29 23:27:59,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:59,356 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2020-11-29 23:27:59,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:27:59,356 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2020-11-29 23:27:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-29 23:27:59,359 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:59,359 INFO L422 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] [2020-11-29 23:27:59,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 23:27:59,359 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:59,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:59,360 INFO L82 PathProgramCache]: Analyzing trace with hash 311084899, now seen corresponding path program 1 times [2020-11-29 23:27:59,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:59,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345805293] [2020-11-29 23:27:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:59,507 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-29 23:27:59,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345805293] [2020-11-29 23:27:59,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:27:59,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:27:59,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752751320] [2020-11-29 23:27:59,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:27:59,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:59,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:27:59,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:59,516 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand 3 states. [2020-11-29 23:27:59,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:59,570 INFO L93 Difference]: Finished difference Result 660 states and 910 transitions. [2020-11-29 23:27:59,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:27:59,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-29 23:27:59,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:59,575 INFO L225 Difference]: With dead ends: 660 [2020-11-29 23:27:59,575 INFO L226 Difference]: Without dead ends: 442 [2020-11-29 23:27:59,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:59,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-11-29 23:27:59,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-11-29 23:27:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-11-29 23:27:59,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 605 transitions. [2020-11-29 23:27:59,599 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 605 transitions. Word has length 105 [2020-11-29 23:27:59,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:59,600 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 605 transitions. [2020-11-29 23:27:59,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:27:59,600 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 605 transitions. [2020-11-29 23:27:59,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-29 23:27:59,605 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:59,613 INFO L422 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] [2020-11-29 23:27:59,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 23:27:59,613 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:59,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:59,614 INFO L82 PathProgramCache]: Analyzing trace with hash 990357153, now seen corresponding path program 1 times [2020-11-29 23:27:59,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:59,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262685327] [2020-11-29 23:27:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:59,678 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-11-29 23:27:59,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262685327] [2020-11-29 23:27:59,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:27:59,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:27:59,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4112778] [2020-11-29 23:27:59,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:27:59,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:59,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:27:59,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:59,681 INFO L87 Difference]: Start difference. First operand 442 states and 605 transitions. Second operand 3 states. [2020-11-29 23:27:59,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:59,745 INFO L93 Difference]: Finished difference Result 895 states and 1224 transitions. [2020-11-29 23:27:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:27:59,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-29 23:27:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:59,751 INFO L225 Difference]: With dead ends: 895 [2020-11-29 23:27:59,751 INFO L226 Difference]: Without dead ends: 463 [2020-11-29 23:27:59,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:59,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-11-29 23:27:59,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2020-11-29 23:27:59,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-11-29 23:27:59,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 632 transitions. [2020-11-29 23:27:59,775 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 632 transitions. Word has length 105 [2020-11-29 23:27:59,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:59,777 INFO L481 AbstractCegarLoop]: Abstraction has 463 states and 632 transitions. [2020-11-29 23:27:59,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:27:59,778 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 632 transitions. [2020-11-29 23:27:59,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-29 23:27:59,782 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:59,782 INFO L422 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] [2020-11-29 23:27:59,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 23:27:59,782 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:59,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:59,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1829390815, now seen corresponding path program 1 times [2020-11-29 23:27:59,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:59,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389252346] [2020-11-29 23:27:59,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:27:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-11-29 23:27:59,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389252346] [2020-11-29 23:27:59,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:27:59,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:27:59,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020361723] [2020-11-29 23:27:59,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:27:59,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:27:59,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:27:59,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:59,858 INFO L87 Difference]: Start difference. First operand 463 states and 632 transitions. Second operand 3 states. [2020-11-29 23:27:59,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:27:59,894 INFO L93 Difference]: Finished difference Result 943 states and 1285 transitions. [2020-11-29 23:27:59,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:27:59,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-29 23:27:59,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:27:59,897 INFO L225 Difference]: With dead ends: 943 [2020-11-29 23:27:59,897 INFO L226 Difference]: Without dead ends: 490 [2020-11-29 23:27:59,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:27:59,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-11-29 23:27:59,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2020-11-29 23:27:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-11-29 23:27:59,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 666 transitions. [2020-11-29 23:27:59,927 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 666 transitions. Word has length 105 [2020-11-29 23:27:59,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:27:59,927 INFO L481 AbstractCegarLoop]: Abstraction has 490 states and 666 transitions. [2020-11-29 23:27:59,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:27:59,927 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 666 transitions. [2020-11-29 23:27:59,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-11-29 23:27:59,929 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:27:59,929 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:27:59,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 23:27:59,930 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:27:59,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:27:59,931 INFO L82 PathProgramCache]: Analyzing trace with hash -915547054, now seen corresponding path program 1 times [2020-11-29 23:27:59,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:27:59,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104789091] [2020-11-29 23:27:59,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:27:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,039 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-29 23:28:00,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104789091] [2020-11-29 23:28:00,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:00,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:00,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737699028] [2020-11-29 23:28:00,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:00,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:00,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:00,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:00,049 INFO L87 Difference]: Start difference. First operand 490 states and 666 transitions. Second operand 3 states. [2020-11-29 23:28:00,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:00,115 INFO L93 Difference]: Finished difference Result 708 states and 966 transitions. [2020-11-29 23:28:00,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:00,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-11-29 23:28:00,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:00,123 INFO L225 Difference]: With dead ends: 708 [2020-11-29 23:28:00,123 INFO L226 Difference]: Without dead ends: 706 [2020-11-29 23:28:00,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:00,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-11-29 23:28:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-11-29 23:28:00,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-11-29 23:28:00,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 964 transitions. [2020-11-29 23:28:00,155 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 964 transitions. Word has length 107 [2020-11-29 23:28:00,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:00,156 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 964 transitions. [2020-11-29 23:28:00,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:00,156 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 964 transitions. [2020-11-29 23:28:00,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-11-29 23:28:00,159 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:00,160 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 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] [2020-11-29 23:28:00,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 23:28:00,160 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:00,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:00,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1430305885, now seen corresponding path program 1 times [2020-11-29 23:28:00,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:00,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084299305] [2020-11-29 23:28:00,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,277 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-29 23:28:00,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084299305] [2020-11-29 23:28:00,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:00,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:00,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966034055] [2020-11-29 23:28:00,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:00,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:00,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:00,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:00,282 INFO L87 Difference]: Start difference. First operand 706 states and 964 transitions. Second operand 3 states. [2020-11-29 23:28:00,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:00,572 INFO L93 Difference]: Finished difference Result 1528 states and 2147 transitions. [2020-11-29 23:28:00,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:00,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-11-29 23:28:00,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:00,580 INFO L225 Difference]: With dead ends: 1528 [2020-11-29 23:28:00,580 INFO L226 Difference]: Without dead ends: 856 [2020-11-29 23:28:00,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:00,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2020-11-29 23:28:00,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 823. [2020-11-29 23:28:00,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-11-29 23:28:00,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1153 transitions. [2020-11-29 23:28:00,613 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1153 transitions. Word has length 147 [2020-11-29 23:28:00,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:00,614 INFO L481 AbstractCegarLoop]: Abstraction has 823 states and 1153 transitions. [2020-11-29 23:28:00,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:00,614 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1153 transitions. [2020-11-29 23:28:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-29 23:28:00,618 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:00,618 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 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] [2020-11-29 23:28:00,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 23:28:00,619 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:00,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:00,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1346631412, now seen corresponding path program 1 times [2020-11-29 23:28:00,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:00,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379891402] [2020-11-29 23:28:00,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:00,724 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-11-29 23:28:00,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379891402] [2020-11-29 23:28:00,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:00,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:00,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624040973] [2020-11-29 23:28:00,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:00,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:00,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:00,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:00,728 INFO L87 Difference]: Start difference. First operand 823 states and 1153 transitions. Second operand 3 states. [2020-11-29 23:28:00,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:00,945 INFO L93 Difference]: Finished difference Result 1689 states and 2365 transitions. [2020-11-29 23:28:00,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:00,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-11-29 23:28:00,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:00,953 INFO L225 Difference]: With dead ends: 1689 [2020-11-29 23:28:00,953 INFO L226 Difference]: Without dead ends: 903 [2020-11-29 23:28:00,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:00,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-11-29 23:28:00,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 892. [2020-11-29 23:28:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 892 states. [2020-11-29 23:28:00,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1237 transitions. [2020-11-29 23:28:00,986 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1237 transitions. Word has length 183 [2020-11-29 23:28:00,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:00,987 INFO L481 AbstractCegarLoop]: Abstraction has 892 states and 1237 transitions. [2020-11-29 23:28:00,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:00,987 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1237 transitions. [2020-11-29 23:28:00,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-11-29 23:28:00,991 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:00,992 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:28:00,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 23:28:00,992 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:00,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:00,993 INFO L82 PathProgramCache]: Analyzing trace with hash 880338370, now seen corresponding path program 1 times [2020-11-29 23:28:00,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:00,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945236580] [2020-11-29 23:28:00,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,099 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2020-11-29 23:28:01,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945236580] [2020-11-29 23:28:01,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:01,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:01,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821974248] [2020-11-29 23:28:01,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:01,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:01,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:01,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:01,103 INFO L87 Difference]: Start difference. First operand 892 states and 1237 transitions. Second operand 3 states. [2020-11-29 23:28:01,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:01,354 INFO L93 Difference]: Finished difference Result 1831 states and 2546 transitions. [2020-11-29 23:28:01,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:01,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-11-29 23:28:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:01,363 INFO L225 Difference]: With dead ends: 1831 [2020-11-29 23:28:01,363 INFO L226 Difference]: Without dead ends: 976 [2020-11-29 23:28:01,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:01,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2020-11-29 23:28:01,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 967. [2020-11-29 23:28:01,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2020-11-29 23:28:01,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1327 transitions. [2020-11-29 23:28:01,403 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1327 transitions. Word has length 204 [2020-11-29 23:28:01,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:01,404 INFO L481 AbstractCegarLoop]: Abstraction has 967 states and 1327 transitions. [2020-11-29 23:28:01,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:01,404 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1327 transitions. [2020-11-29 23:28:01,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-11-29 23:28:01,409 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:01,409 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:28:01,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 23:28:01,410 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:01,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:01,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1998340689, now seen corresponding path program 1 times [2020-11-29 23:28:01,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:01,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230929418] [2020-11-29 23:28:01,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:01,587 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-11-29 23:28:01,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230929418] [2020-11-29 23:28:01,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:01,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:01,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413129033] [2020-11-29 23:28:01,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:01,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:01,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:01,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:01,594 INFO L87 Difference]: Start difference. First operand 967 states and 1327 transitions. Second operand 3 states. [2020-11-29 23:28:01,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:01,850 INFO L93 Difference]: Finished difference Result 1987 states and 2735 transitions. [2020-11-29 23:28:01,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:01,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2020-11-29 23:28:01,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:01,861 INFO L225 Difference]: With dead ends: 1987 [2020-11-29 23:28:01,861 INFO L226 Difference]: Without dead ends: 1057 [2020-11-29 23:28:01,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:01,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2020-11-29 23:28:01,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1051. [2020-11-29 23:28:01,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2020-11-29 23:28:01,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1426 transitions. [2020-11-29 23:28:01,904 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1426 transitions. Word has length 228 [2020-11-29 23:28:01,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:01,904 INFO L481 AbstractCegarLoop]: Abstraction has 1051 states and 1426 transitions. [2020-11-29 23:28:01,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:01,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1426 transitions. [2020-11-29 23:28:01,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-11-29 23:28:01,910 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:01,911 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:28:01,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 23:28:01,911 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:01,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:01,912 INFO L82 PathProgramCache]: Analyzing trace with hash -967299791, now seen corresponding path program 1 times [2020-11-29 23:28:01,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:01,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874169010] [2020-11-29 23:28:01,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:02,059 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-11-29 23:28:02,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874169010] [2020-11-29 23:28:02,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:02,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:02,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185216643] [2020-11-29 23:28:02,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:02,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:02,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:02,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:02,063 INFO L87 Difference]: Start difference. First operand 1051 states and 1426 transitions. Second operand 3 states. [2020-11-29 23:28:02,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:02,317 INFO L93 Difference]: Finished difference Result 2167 states and 2960 transitions. [2020-11-29 23:28:02,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:02,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2020-11-29 23:28:02,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:02,327 INFO L225 Difference]: With dead ends: 2167 [2020-11-29 23:28:02,327 INFO L226 Difference]: Without dead ends: 1153 [2020-11-29 23:28:02,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:02,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2020-11-29 23:28:02,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1144. [2020-11-29 23:28:02,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1144 states. [2020-11-29 23:28:02,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1534 transitions. [2020-11-29 23:28:02,372 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1534 transitions. Word has length 228 [2020-11-29 23:28:02,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:02,372 INFO L481 AbstractCegarLoop]: Abstraction has 1144 states and 1534 transitions. [2020-11-29 23:28:02,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:02,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1534 transitions. [2020-11-29 23:28:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-11-29 23:28:02,378 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:02,379 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:28:02,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 23:28:02,380 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:02,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:02,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1465419185, now seen corresponding path program 1 times [2020-11-29 23:28:02,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:02,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417670803] [2020-11-29 23:28:02,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:02,538 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 530 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2020-11-29 23:28:02,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417670803] [2020-11-29 23:28:02,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:02,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:02,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134432930] [2020-11-29 23:28:02,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:02,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:02,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:02,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:02,544 INFO L87 Difference]: Start difference. First operand 1144 states and 1534 transitions. Second operand 3 states. [2020-11-29 23:28:02,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:02,602 INFO L93 Difference]: Finished difference Result 3355 states and 4503 transitions. [2020-11-29 23:28:02,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:02,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 258 [2020-11-29 23:28:02,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:02,619 INFO L225 Difference]: With dead ends: 3355 [2020-11-29 23:28:02,619 INFO L226 Difference]: Without dead ends: 2248 [2020-11-29 23:28:02,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:02,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2020-11-29 23:28:02,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2246. [2020-11-29 23:28:02,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-11-29 23:28:02,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 3013 transitions. [2020-11-29 23:28:02,704 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 3013 transitions. Word has length 258 [2020-11-29 23:28:02,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:02,705 INFO L481 AbstractCegarLoop]: Abstraction has 2246 states and 3013 transitions. [2020-11-29 23:28:02,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:02,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 3013 transitions. [2020-11-29 23:28:02,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-11-29 23:28:02,713 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:02,713 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:28:02,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 23:28:02,714 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:02,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:02,715 INFO L82 PathProgramCache]: Analyzing trace with hash -434378287, now seen corresponding path program 1 times [2020-11-29 23:28:02,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:02,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118745660] [2020-11-29 23:28:02,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:02,883 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-11-29 23:28:02,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118745660] [2020-11-29 23:28:02,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:02,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:02,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201863733] [2020-11-29 23:28:02,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:02,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:02,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:02,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:02,887 INFO L87 Difference]: Start difference. First operand 2246 states and 3013 transitions. Second operand 3 states. [2020-11-29 23:28:03,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:03,174 INFO L93 Difference]: Finished difference Result 4680 states and 6329 transitions. [2020-11-29 23:28:03,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:03,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 258 [2020-11-29 23:28:03,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:03,192 INFO L225 Difference]: With dead ends: 4680 [2020-11-29 23:28:03,192 INFO L226 Difference]: Without dead ends: 2471 [2020-11-29 23:28:03,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:03,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2020-11-29 23:28:03,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2459. [2020-11-29 23:28:03,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2459 states. [2020-11-29 23:28:03,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 3256 transitions. [2020-11-29 23:28:03,286 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 3256 transitions. Word has length 258 [2020-11-29 23:28:03,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:03,286 INFO L481 AbstractCegarLoop]: Abstraction has 2459 states and 3256 transitions. [2020-11-29 23:28:03,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:03,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 3256 transitions. [2020-11-29 23:28:03,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-11-29 23:28:03,330 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:03,330 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2020-11-29 23:28:03,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 23:28:03,331 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:03,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:03,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1948571271, now seen corresponding path program 1 times [2020-11-29 23:28:03,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:03,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799598000] [2020-11-29 23:28:03,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:03,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 555 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2020-11-29 23:28:03,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799598000] [2020-11-29 23:28:03,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:03,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:03,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793677812] [2020-11-29 23:28:03,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:03,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:03,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:03,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:03,538 INFO L87 Difference]: Start difference. First operand 2459 states and 3256 transitions. Second operand 3 states. [2020-11-29 23:28:03,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:03,846 INFO L93 Difference]: Finished difference Result 4992 states and 6632 transitions. [2020-11-29 23:28:03,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:03,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2020-11-29 23:28:03,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:03,866 INFO L225 Difference]: With dead ends: 4992 [2020-11-29 23:28:03,866 INFO L226 Difference]: Without dead ends: 2570 [2020-11-29 23:28:03,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:03,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2020-11-29 23:28:04,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2558. [2020-11-29 23:28:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2558 states. [2020-11-29 23:28:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3370 transitions. [2020-11-29 23:28:04,019 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3370 transitions. Word has length 282 [2020-11-29 23:28:04,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:04,019 INFO L481 AbstractCegarLoop]: Abstraction has 2558 states and 3370 transitions. [2020-11-29 23:28:04,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:04,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3370 transitions. [2020-11-29 23:28:04,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-11-29 23:28:04,029 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:04,029 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:28:04,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 23:28:04,030 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:04,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:04,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1124753462, now seen corresponding path program 1 times [2020-11-29 23:28:04,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:04,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641539495] [2020-11-29 23:28:04,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:04,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 442 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2020-11-29 23:28:04,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641539495] [2020-11-29 23:28:04,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:04,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:04,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46519050] [2020-11-29 23:28:04,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:04,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:04,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:04,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:04,178 INFO L87 Difference]: Start difference. First operand 2558 states and 3370 transitions. Second operand 3 states. [2020-11-29 23:28:04,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:04,515 INFO L93 Difference]: Finished difference Result 5379 states and 7220 transitions. [2020-11-29 23:28:04,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:04,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 293 [2020-11-29 23:28:04,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:04,571 INFO L225 Difference]: With dead ends: 5379 [2020-11-29 23:28:04,572 INFO L226 Difference]: Without dead ends: 2858 [2020-11-29 23:28:04,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:04,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2020-11-29 23:28:04,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2798. [2020-11-29 23:28:04,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2798 states. [2020-11-29 23:28:04,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3652 transitions. [2020-11-29 23:28:04,684 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3652 transitions. Word has length 293 [2020-11-29 23:28:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:04,684 INFO L481 AbstractCegarLoop]: Abstraction has 2798 states and 3652 transitions. [2020-11-29 23:28:04,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3652 transitions. [2020-11-29 23:28:04,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-11-29 23:28:04,694 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:04,695 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:28:04,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 23:28:04,695 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:04,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:04,696 INFO L82 PathProgramCache]: Analyzing trace with hash 495610836, now seen corresponding path program 1 times [2020-11-29 23:28:04,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:04,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319677587] [2020-11-29 23:28:04,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:04,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 631 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-11-29 23:28:04,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319677587] [2020-11-29 23:28:04,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:04,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:04,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553475998] [2020-11-29 23:28:04,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:04,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:04,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:04,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:04,839 INFO L87 Difference]: Start difference. First operand 2798 states and 3652 transitions. Second operand 3 states. [2020-11-29 23:28:05,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:05,199 INFO L93 Difference]: Finished difference Result 5643 states and 7358 transitions. [2020-11-29 23:28:05,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:05,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2020-11-29 23:28:05,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:05,219 INFO L225 Difference]: With dead ends: 5643 [2020-11-29 23:28:05,219 INFO L226 Difference]: Without dead ends: 2864 [2020-11-29 23:28:05,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:05,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2020-11-29 23:28:05,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 2792. [2020-11-29 23:28:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2792 states. [2020-11-29 23:28:05,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 3616 transitions. [2020-11-29 23:28:05,330 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 3616 transitions. Word has length 301 [2020-11-29 23:28:05,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:05,331 INFO L481 AbstractCegarLoop]: Abstraction has 2792 states and 3616 transitions. [2020-11-29 23:28:05,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:05,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 3616 transitions. [2020-11-29 23:28:05,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-11-29 23:28:05,342 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:05,342 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:28:05,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 23:28:05,342 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:05,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:05,343 INFO L82 PathProgramCache]: Analyzing trace with hash -870156213, now seen corresponding path program 1 times [2020-11-29 23:28:05,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:05,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571383828] [2020-11-29 23:28:05,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 657 proven. 14 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2020-11-29 23:28:05,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571383828] [2020-11-29 23:28:05,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440700114] [2020-11-29 23:28:05,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:28:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:05,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:28:05,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:28:06,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 657 proven. 14 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2020-11-29 23:28:06,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:28:06,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 23:28:06,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579209936] [2020-11-29 23:28:06,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:28:06,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:06,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:28:06,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:28:06,138 INFO L87 Difference]: Start difference. First operand 2792 states and 3616 transitions. Second operand 4 states. [2020-11-29 23:28:07,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:07,047 INFO L93 Difference]: Finished difference Result 8410 states and 10878 transitions. [2020-11-29 23:28:07,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:28:07,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 332 [2020-11-29 23:28:07,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:07,109 INFO L225 Difference]: With dead ends: 8410 [2020-11-29 23:28:07,109 INFO L226 Difference]: Without dead ends: 5649 [2020-11-29 23:28:07,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:28:07,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5649 states. [2020-11-29 23:28:07,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5649 to 3680. [2020-11-29 23:28:07,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3680 states. [2020-11-29 23:28:07,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 4716 transitions. [2020-11-29 23:28:07,283 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 4716 transitions. Word has length 332 [2020-11-29 23:28:07,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:07,284 INFO L481 AbstractCegarLoop]: Abstraction has 3680 states and 4716 transitions. [2020-11-29 23:28:07,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:28:07,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 4716 transitions. [2020-11-29 23:28:07,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-11-29 23:28:07,296 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:07,297 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:28:07,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-11-29 23:28:07,522 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:07,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:07,523 INFO L82 PathProgramCache]: Analyzing trace with hash -734234391, now seen corresponding path program 1 times [2020-11-29 23:28:07,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:07,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509180850] [2020-11-29 23:28:07,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 770 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2020-11-29 23:28:07,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509180850] [2020-11-29 23:28:07,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:07,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:07,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422628210] [2020-11-29 23:28:07,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:07,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:07,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:07,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:07,783 INFO L87 Difference]: Start difference. First operand 3680 states and 4716 transitions. Second operand 3 states. [2020-11-29 23:28:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:07,911 INFO L93 Difference]: Finished difference Result 9682 states and 12466 transitions. [2020-11-29 23:28:07,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:07,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 333 [2020-11-29 23:28:07,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:07,927 INFO L225 Difference]: With dead ends: 9682 [2020-11-29 23:28:07,927 INFO L226 Difference]: Without dead ends: 6039 [2020-11-29 23:28:07,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:07,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6039 states. [2020-11-29 23:28:08,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6039 to 5695. [2020-11-29 23:28:08,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5695 states. [2020-11-29 23:28:08,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5695 states to 5695 states and 7327 transitions. [2020-11-29 23:28:08,181 INFO L78 Accepts]: Start accepts. Automaton has 5695 states and 7327 transitions. Word has length 333 [2020-11-29 23:28:08,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:08,182 INFO L481 AbstractCegarLoop]: Abstraction has 5695 states and 7327 transitions. [2020-11-29 23:28:08,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:08,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5695 states and 7327 transitions. [2020-11-29 23:28:08,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-11-29 23:28:08,196 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:08,196 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:28:08,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-29 23:28:08,197 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:08,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:08,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1600541490, now seen corresponding path program 1 times [2020-11-29 23:28:08,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:08,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52676444] [2020-11-29 23:28:08,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 733 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-29 23:28:08,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52676444] [2020-11-29 23:28:08,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:08,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:08,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591795662] [2020-11-29 23:28:08,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:08,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:08,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:08,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:08,394 INFO L87 Difference]: Start difference. First operand 5695 states and 7327 transitions. Second operand 3 states. [2020-11-29 23:28:08,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:08,779 INFO L93 Difference]: Finished difference Result 11959 states and 15320 transitions. [2020-11-29 23:28:08,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:08,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 338 [2020-11-29 23:28:08,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:08,796 INFO L225 Difference]: With dead ends: 11959 [2020-11-29 23:28:08,796 INFO L226 Difference]: Without dead ends: 6301 [2020-11-29 23:28:08,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:08,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6301 states. [2020-11-29 23:28:09,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6301 to 5869. [2020-11-29 23:28:09,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5869 states. [2020-11-29 23:28:09,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5869 states to 5869 states and 7561 transitions. [2020-11-29 23:28:09,030 INFO L78 Accepts]: Start accepts. Automaton has 5869 states and 7561 transitions. Word has length 338 [2020-11-29 23:28:09,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:09,031 INFO L481 AbstractCegarLoop]: Abstraction has 5869 states and 7561 transitions. [2020-11-29 23:28:09,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:09,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5869 states and 7561 transitions. [2020-11-29 23:28:09,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-11-29 23:28:09,048 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:09,048 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:28:09,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-29 23:28:09,049 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:09,050 INFO L82 PathProgramCache]: Analyzing trace with hash 296800678, now seen corresponding path program 1 times [2020-11-29 23:28:09,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:09,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771019550] [2020-11-29 23:28:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:09,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1651 backedges. 957 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-29 23:28:09,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771019550] [2020-11-29 23:28:09,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351350051] [2020-11-29 23:28:09,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:28:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:09,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:28:09,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:28:09,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1651 backedges. 957 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-29 23:28:09,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:28:09,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 23:28:09,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657376366] [2020-11-29 23:28:09,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:28:09,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:09,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:28:09,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:28:09,827 INFO L87 Difference]: Start difference. First operand 5869 states and 7561 transitions. Second operand 4 states. [2020-11-29 23:28:10,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:10,486 INFO L93 Difference]: Finished difference Result 13204 states and 16946 transitions. [2020-11-29 23:28:10,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:28:10,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 376 [2020-11-29 23:28:10,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:10,508 INFO L225 Difference]: With dead ends: 13204 [2020-11-29 23:28:10,508 INFO L226 Difference]: Without dead ends: 7359 [2020-11-29 23:28:10,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:28:10,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7359 states. [2020-11-29 23:28:10,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7359 to 5989. [2020-11-29 23:28:10,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5989 states. [2020-11-29 23:28:10,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5989 states to 5989 states and 7642 transitions. [2020-11-29 23:28:10,764 INFO L78 Accepts]: Start accepts. Automaton has 5989 states and 7642 transitions. Word has length 376 [2020-11-29 23:28:10,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:10,765 INFO L481 AbstractCegarLoop]: Abstraction has 5989 states and 7642 transitions. [2020-11-29 23:28:10,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:28:10,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5989 states and 7642 transitions. [2020-11-29 23:28:10,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2020-11-29 23:28:10,786 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:10,787 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:28:11,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-11-29 23:28:11,014 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:11,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:11,015 INFO L82 PathProgramCache]: Analyzing trace with hash -2142183135, now seen corresponding path program 1 times [2020-11-29 23:28:11,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:11,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429936983] [2020-11-29 23:28:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:11,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1972 backedges. 887 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-11-29 23:28:11,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429936983] [2020-11-29 23:28:11,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:28:11,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:28:11,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694774680] [2020-11-29 23:28:11,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:28:11,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:11,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:28:11,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:11,359 INFO L87 Difference]: Start difference. First operand 5989 states and 7642 transitions. Second operand 3 states. [2020-11-29 23:28:11,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:11,675 INFO L93 Difference]: Finished difference Result 11539 states and 14488 transitions. [2020-11-29 23:28:11,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:28:11,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 415 [2020-11-29 23:28:11,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:11,684 INFO L225 Difference]: With dead ends: 11539 [2020-11-29 23:28:11,684 INFO L226 Difference]: Without dead ends: 3293 [2020-11-29 23:28:11,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:28:11,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2020-11-29 23:28:11,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 3227. [2020-11-29 23:28:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3227 states. [2020-11-29 23:28:11,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 4073 transitions. [2020-11-29 23:28:11,783 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 4073 transitions. Word has length 415 [2020-11-29 23:28:11,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:11,783 INFO L481 AbstractCegarLoop]: Abstraction has 3227 states and 4073 transitions. [2020-11-29 23:28:11,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:28:11,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 4073 transitions. [2020-11-29 23:28:11,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2020-11-29 23:28:11,800 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:28:11,801 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 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, 1] [2020-11-29 23:28:11,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-29 23:28:11,801 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:28:11,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:28:11,802 INFO L82 PathProgramCache]: Analyzing trace with hash -2025530628, now seen corresponding path program 1 times [2020-11-29 23:28:11,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:28:11,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820739888] [2020-11-29 23:28:11,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:28:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:12,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2503 backedges. 1481 proven. 14 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2020-11-29 23:28:12,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820739888] [2020-11-29 23:28:12,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128445035] [2020-11-29 23:28:12,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:28:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:28:12,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:28:12,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:28:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2503 backedges. 1481 proven. 14 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2020-11-29 23:28:12,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:28:12,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 23:28:12,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220987170] [2020-11-29 23:28:12,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:28:12,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:28:12,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:28:12,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:28:12,605 INFO L87 Difference]: Start difference. First operand 3227 states and 4073 transitions. Second operand 4 states. [2020-11-29 23:28:12,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:28:12,951 INFO L93 Difference]: Finished difference Result 3861 states and 4882 transitions. [2020-11-29 23:28:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:28:12,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 482 [2020-11-29 23:28:12,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:28:12,953 INFO L225 Difference]: With dead ends: 3861 [2020-11-29 23:28:12,953 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:28:12,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:28:12,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:28:12,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:28:12,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:28:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:28:12,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 482 [2020-11-29 23:28:12,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:28:12,959 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:28:12,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:28:12,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:28:12,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:28:13,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-11-29 23:28:13,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:28:13,708 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 76 [2020-11-29 23:28:14,015 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 17 [2020-11-29 23:28:14,145 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2020-11-29 23:28:14,270 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 16 [2020-11-29 23:28:14,457 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 17 [2020-11-29 23:28:14,599 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 17 [2020-11-29 23:28:15,123 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-11-29 23:28:15,328 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 17 [2020-11-29 23:28:15,449 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 17 [2020-11-29 23:28:15,453 INFO L274 CegarLoopResult]: For program point L531(lines 531 535) no Hoare annotation was computed. [2020-11-29 23:28:15,453 INFO L274 CegarLoopResult]: For program point L267(lines 267 269) no Hoare annotation was computed. [2020-11-29 23:28:15,453 INFO L274 CegarLoopResult]: For program point L267-2(lines 203 486) no Hoare annotation was computed. [2020-11-29 23:28:15,453 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 23:28:15,453 INFO L274 CegarLoopResult]: For program point L433(lines 433 435) no Hoare annotation was computed. [2020-11-29 23:28:15,453 INFO L274 CegarLoopResult]: For program point L334(lines 334 336) no Hoare annotation was computed. [2020-11-29 23:28:15,454 INFO L277 CegarLoopResult]: At program point L202(lines 201 489) the Hoare annotation is: true [2020-11-29 23:28:15,454 INFO L274 CegarLoopResult]: For program point L169(lines 169 499) no Hoare annotation was computed. [2020-11-29 23:28:15,454 INFO L274 CegarLoopResult]: For program point L136(lines 136 510) no Hoare annotation was computed. [2020-11-29 23:28:15,454 INFO L274 CegarLoopResult]: For program point L103(lines 103 521) no Hoare annotation was computed. [2020-11-29 23:28:15,454 INFO L270 CegarLoopResult]: At program point L170(lines 166 500) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-29 23:28:15,455 INFO L270 CegarLoopResult]: At program point L104(lines 103 521) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-29 23:28:15,455 INFO L274 CegarLoopResult]: For program point L468(lines 468 470) no Hoare annotation was computed. [2020-11-29 23:28:15,455 INFO L274 CegarLoopResult]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2020-11-29 23:28:15,455 INFO L274 CegarLoopResult]: For program point L436(lines 436 440) no Hoare annotation was computed. [2020-11-29 23:28:15,455 INFO L274 CegarLoopResult]: For program point L436-2(lines 436 440) no Hoare annotation was computed. [2020-11-29 23:28:15,455 INFO L274 CegarLoopResult]: For program point L337(lines 337 341) no Hoare annotation was computed. [2020-11-29 23:28:15,455 INFO L274 CegarLoopResult]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2020-11-29 23:28:15,456 INFO L274 CegarLoopResult]: For program point L172(lines 172 498) no Hoare annotation was computed. [2020-11-29 23:28:15,456 INFO L274 CegarLoopResult]: For program point L139(lines 139 509) no Hoare annotation was computed. [2020-11-29 23:28:15,456 INFO L274 CegarLoopResult]: For program point L106(lines 106 520) no Hoare annotation was computed. [2020-11-29 23:28:15,456 INFO L270 CegarLoopResult]: At program point L140(lines 136 510) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-29 23:28:15,456 INFO L274 CegarLoopResult]: For program point L306(lines 306 308) no Hoare annotation was computed. [2020-11-29 23:28:15,456 INFO L274 CegarLoopResult]: For program point L273(lines 273 277) no Hoare annotation was computed. [2020-11-29 23:28:15,456 INFO L274 CegarLoopResult]: For program point L240(lines 240 243) no Hoare annotation was computed. [2020-11-29 23:28:15,457 INFO L274 CegarLoopResult]: For program point L306-2(lines 203 486) no Hoare annotation was computed. [2020-11-29 23:28:15,457 INFO L274 CegarLoopResult]: For program point L273-2(lines 273 277) no Hoare annotation was computed. [2020-11-29 23:28:15,457 INFO L274 CegarLoopResult]: For program point L406(lines 406 408) no Hoare annotation was computed. [2020-11-29 23:28:15,457 INFO L274 CegarLoopResult]: For program point L373(lines 373 375) no Hoare annotation was computed. [2020-11-29 23:28:15,457 INFO L270 CegarLoopResult]: At program point L208(lines 106 520) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)) [2020-11-29 23:28:15,457 INFO L274 CegarLoopResult]: For program point L175(lines 175 497) no Hoare annotation was computed. [2020-11-29 23:28:15,457 INFO L274 CegarLoopResult]: For program point L142(lines 142 508) no Hoare annotation was computed. [2020-11-29 23:28:15,458 INFO L274 CegarLoopResult]: For program point L109(lines 109 519) no Hoare annotation was computed. [2020-11-29 23:28:15,458 INFO L270 CegarLoopResult]: At program point L176(lines 172 498) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-29 23:28:15,458 INFO L274 CegarLoopResult]: For program point L474(lines 474 476) no Hoare annotation was computed. [2020-11-29 23:28:15,458 INFO L274 CegarLoopResult]: For program point L474-2(lines 474 476) no Hoare annotation was computed. [2020-11-29 23:28:15,458 INFO L277 CegarLoopResult]: At program point L541(lines 99 542) the Hoare annotation is: true [2020-11-29 23:28:15,458 INFO L274 CegarLoopResult]: For program point L178(lines 178 496) no Hoare annotation was computed. [2020-11-29 23:28:15,459 INFO L274 CegarLoopResult]: For program point L145(lines 145 507) no Hoare annotation was computed. [2020-11-29 23:28:15,459 INFO L274 CegarLoopResult]: For program point L112(lines 112 518) no Hoare annotation was computed. [2020-11-29 23:28:15,459 INFO L270 CegarLoopResult]: At program point L146(lines 142 508) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-29 23:28:15,459 INFO L274 CegarLoopResult]: For program point L213(lines 213 215) no Hoare annotation was computed. [2020-11-29 23:28:15,459 INFO L274 CegarLoopResult]: For program point L213-2(lines 213 215) no Hoare annotation was computed. [2020-11-29 23:28:15,459 INFO L274 CegarLoopResult]: For program point L181(lines 181 495) no Hoare annotation was computed. [2020-11-29 23:28:15,459 INFO L274 CegarLoopResult]: For program point L148(lines 148 506) no Hoare annotation was computed. [2020-11-29 23:28:15,460 INFO L274 CegarLoopResult]: For program point L115(lines 115 517) no Hoare annotation was computed. [2020-11-29 23:28:15,460 INFO L274 CegarLoopResult]: For program point L479(lines 479 481) no Hoare annotation was computed. [2020-11-29 23:28:15,460 INFO L274 CegarLoopResult]: For program point L446(lines 446 457) no Hoare annotation was computed. [2020-11-29 23:28:15,460 INFO L274 CegarLoopResult]: For program point L413(lines 413 427) no Hoare annotation was computed. [2020-11-29 23:28:15,460 INFO L274 CegarLoopResult]: For program point L413-1(lines 413 427) no Hoare annotation was computed. [2020-11-29 23:28:15,460 INFO L274 CegarLoopResult]: For program point L446-2(lines 446 457) no Hoare annotation was computed. [2020-11-29 23:28:15,460 INFO L274 CegarLoopResult]: For program point L314(lines 314 317) no Hoare annotation was computed. [2020-11-29 23:28:15,461 INFO L270 CegarLoopResult]: At program point L182(lines 178 496) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-29 23:28:15,461 INFO L274 CegarLoopResult]: For program point L546(lines 546 548) no Hoare annotation was computed. [2020-11-29 23:28:15,461 INFO L274 CegarLoopResult]: For program point L546-2(lines 546 548) no Hoare annotation was computed. [2020-11-29 23:28:15,461 INFO L274 CegarLoopResult]: For program point L349(lines 349 351) no Hoare annotation was computed. [2020-11-29 23:28:15,461 INFO L274 CegarLoopResult]: For program point L184(lines 184 494) no Hoare annotation was computed. [2020-11-29 23:28:15,461 INFO L274 CegarLoopResult]: For program point L151(lines 151 505) no Hoare annotation was computed. [2020-11-29 23:28:15,461 INFO L274 CegarLoopResult]: For program point L118(lines 118 516) no Hoare annotation was computed. [2020-11-29 23:28:15,461 INFO L274 CegarLoopResult]: For program point L383(lines 383 385) no Hoare annotation was computed. [2020-11-29 23:28:15,462 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:28:15,466 INFO L274 CegarLoopResult]: For program point L284(lines 284 298) no Hoare annotation was computed. [2020-11-29 23:28:15,466 INFO L274 CegarLoopResult]: For program point L218(lines 218 221) no Hoare annotation was computed. [2020-11-29 23:28:15,466 INFO L274 CegarLoopResult]: For program point L284-2(lines 284 298) no Hoare annotation was computed. [2020-11-29 23:28:15,466 INFO L270 CegarLoopResult]: At program point L152(lines 148 506) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-29 23:28:15,467 INFO L274 CegarLoopResult]: For program point L86(lines 86 92) no Hoare annotation was computed. [2020-11-29 23:28:15,467 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-11-29 23:28:15,467 INFO L274 CegarLoopResult]: For program point L252(lines 252 254) no Hoare annotation was computed. [2020-11-29 23:28:15,467 INFO L274 CegarLoopResult]: For program point L252-2(lines 203 486) no Hoare annotation was computed. [2020-11-29 23:28:15,467 INFO L274 CegarLoopResult]: For program point L451(lines 451 454) no Hoare annotation was computed. [2020-11-29 23:28:15,467 INFO L274 CegarLoopResult]: For program point L187(lines 187 493) no Hoare annotation was computed. [2020-11-29 23:28:15,468 INFO L274 CegarLoopResult]: For program point L154(lines 154 504) no Hoare annotation was computed. [2020-11-29 23:28:15,468 INFO L274 CegarLoopResult]: For program point L121(lines 121 515) no Hoare annotation was computed. [2020-11-29 23:28:15,468 INFO L277 CegarLoopResult]: At program point L551(lines 12 553) the Hoare annotation is: true [2020-11-29 23:28:15,468 INFO L270 CegarLoopResult]: At program point L188(lines 184 494) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2))) [2020-11-29 23:28:15,469 INFO L270 CegarLoopResult]: At program point L122(lines 118 516) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-29 23:28:15,469 INFO L274 CegarLoopResult]: For program point L89(lines 89 91) no Hoare annotation was computed. [2020-11-29 23:28:15,470 INFO L274 CegarLoopResult]: For program point L89-2(lines 86 92) no Hoare annotation was computed. [2020-11-29 23:28:15,470 INFO L274 CegarLoopResult]: For program point L288(lines 288 294) no Hoare annotation was computed. [2020-11-29 23:28:15,470 INFO L270 CegarLoopResult]: At program point L487(lines 100 540) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse2 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse3 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse4 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse5 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse9 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse10 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse11 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse8 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse7 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse1) (and .cse0 .cse5 .cse6 .cse2 .cse7) (and .cse8 .cse6) (and .cse3 .cse4 .cse9 .cse7) (and .cse10 .cse5 .cse11 .cse6 .cse7) (and .cse9 (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse10 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse1 .cse11) (and .cse1 .cse8 .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse1 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0) .cse7))) [2020-11-29 23:28:15,471 INFO L274 CegarLoopResult]: For program point L322(lines 322 324) no Hoare annotation was computed. [2020-11-29 23:28:15,471 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:28:15,471 INFO L274 CegarLoopResult]: For program point L190(lines 190 492) no Hoare annotation was computed. [2020-11-29 23:28:15,471 INFO L274 CegarLoopResult]: For program point L157(lines 157 503) no Hoare annotation was computed. [2020-11-29 23:28:15,472 INFO L274 CegarLoopResult]: For program point L124(lines 124 514) no Hoare annotation was computed. [2020-11-29 23:28:15,472 INFO L274 CegarLoopResult]: For program point L389(lines 389 393) no Hoare annotation was computed. [2020-11-29 23:28:15,473 INFO L270 CegarLoopResult]: At program point L323(lines 77 552) the Hoare annotation is: false [2020-11-29 23:28:15,474 INFO L274 CegarLoopResult]: For program point L389-2(lines 203 486) no Hoare annotation was computed. [2020-11-29 23:28:15,475 INFO L274 CegarLoopResult]: For program point L224(lines 224 235) no Hoare annotation was computed. [2020-11-29 23:28:15,475 INFO L274 CegarLoopResult]: For program point L224-2(lines 203 486) no Hoare annotation was computed. [2020-11-29 23:28:15,475 INFO L274 CegarLoopResult]: For program point L522(lines 522 538) no Hoare annotation was computed. [2020-11-29 23:28:15,475 INFO L274 CegarLoopResult]: For program point L291(lines 291 293) no Hoare annotation was computed. [2020-11-29 23:28:15,475 INFO L274 CegarLoopResult]: For program point L291-2(lines 286 298) no Hoare annotation was computed. [2020-11-29 23:28:15,475 INFO L274 CegarLoopResult]: For program point L523(lines 523 537) no Hoare annotation was computed. [2020-11-29 23:28:15,476 INFO L274 CegarLoopResult]: For program point L358(lines 358 360) no Hoare annotation was computed. [2020-11-29 23:28:15,476 INFO L274 CegarLoopResult]: For program point L325(lines 325 327) no Hoare annotation was computed. [2020-11-29 23:28:15,476 INFO L274 CegarLoopResult]: For program point L226(lines 226 229) no Hoare annotation was computed. [2020-11-29 23:28:15,478 INFO L274 CegarLoopResult]: For program point L193(lines 193 491) no Hoare annotation was computed. [2020-11-29 23:28:15,478 INFO L274 CegarLoopResult]: For program point L160(lines 160 502) no Hoare annotation was computed. [2020-11-29 23:28:15,478 INFO L274 CegarLoopResult]: For program point L127(lines 127 513) no Hoare annotation was computed. [2020-11-29 23:28:15,478 INFO L274 CegarLoopResult]: For program point L94(lines 94 98) no Hoare annotation was computed. [2020-11-29 23:28:15,479 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:28:15,479 INFO L274 CegarLoopResult]: For program point L524(lines 524 529) no Hoare annotation was computed. [2020-11-29 23:28:15,479 INFO L274 CegarLoopResult]: For program point L524-2(lines 523 537) no Hoare annotation was computed. [2020-11-29 23:28:15,479 INFO L274 CegarLoopResult]: For program point L260(lines 260 262) no Hoare annotation was computed. [2020-11-29 23:28:15,479 INFO L270 CegarLoopResult]: At program point L194(lines 190 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1) (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-29 23:28:15,480 INFO L270 CegarLoopResult]: At program point L128(lines 124 514) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-29 23:28:15,480 INFO L274 CegarLoopResult]: For program point L95(lines 95 97) no Hoare annotation was computed. [2020-11-29 23:28:15,480 INFO L274 CegarLoopResult]: For program point L526(lines 526 528) no Hoare annotation was computed. [2020-11-29 23:28:15,480 INFO L274 CegarLoopResult]: For program point L196(lines 196 490) no Hoare annotation was computed. [2020-11-29 23:28:15,480 INFO L274 CegarLoopResult]: For program point L163(lines 163 501) no Hoare annotation was computed. [2020-11-29 23:28:15,481 INFO L274 CegarLoopResult]: For program point L130(lines 130 512) no Hoare annotation was computed. [2020-11-29 23:28:15,481 INFO L274 CegarLoopResult]: For program point L362(lines 362 367) no Hoare annotation was computed. [2020-11-29 23:28:15,481 INFO L274 CegarLoopResult]: For program point L362-2(lines 362 367) no Hoare annotation was computed. [2020-11-29 23:28:15,481 INFO L274 CegarLoopResult]: For program point L230(lines 230 233) no Hoare annotation was computed. [2020-11-29 23:28:15,481 INFO L270 CegarLoopResult]: At program point L197(lines 196 490) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= 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) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2020-11-29 23:28:15,482 INFO L270 CegarLoopResult]: At program point L164(lines 154 504) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-29 23:28:15,482 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:28:15,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 23:28:15,483 INFO L274 CegarLoopResult]: For program point L462-1(lines 462 464) no Hoare annotation was computed. [2020-11-29 23:28:15,483 INFO L277 CegarLoopResult]: At program point L562(lines 554 564) the Hoare annotation is: true [2020-11-29 23:28:15,483 INFO L274 CegarLoopResult]: For program point L199(lines 199 489) no Hoare annotation was computed. [2020-11-29 23:28:15,483 INFO L274 CegarLoopResult]: For program point L166(lines 166 500) no Hoare annotation was computed. [2020-11-29 23:28:15,484 INFO L274 CegarLoopResult]: For program point L133(lines 133 511) no Hoare annotation was computed. [2020-11-29 23:28:15,484 INFO L274 CegarLoopResult]: For program point L100-1(lines 77 552) no Hoare annotation was computed. [2020-11-29 23:28:15,484 INFO L274 CegarLoopResult]: For program point L398(lines 398 401) no Hoare annotation was computed. [2020-11-29 23:28:15,484 INFO L277 CegarLoopResult]: At program point L200(lines 199 489) the Hoare annotation is: true [2020-11-29 23:28:15,484 INFO L270 CegarLoopResult]: At program point L134(lines 130 512) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-29 23:28:15,485 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-29 23:28:15,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:28:15 BoogieIcfgContainer [2020-11-29 23:28:15,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:28:15,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:28:15,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:28:15,533 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:28:15,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:27:55" (3/4) ... [2020-11-29 23:28:15,538 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:28:15,572 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 23:28:15,573 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 23:28:15,574 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:28:15,576 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:28:15,748 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3a0df145-7fc1-4881-ba1f-e1a798837706/bin/uautomizer/witness.graphml [2020-11-29 23:28:15,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:28:15,750 INFO L168 Benchmark]: Toolchain (without parser) took 22004.04 ms. Allocated memory was 125.8 MB in the beginning and 864.0 MB in the end (delta: 738.2 MB). Free memory was 92.0 MB in the beginning and 749.0 MB in the end (delta: -657.0 MB). Peak memory consumption was 81.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:15,750 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 39.9 MB in the beginning and 39.8 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:28:15,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.95 ms. Allocated memory is still 125.8 MB. Free memory was 91.8 MB in the beginning and 97.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:15,751 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.08 ms. Allocated memory is still 125.8 MB. Free memory was 96.5 MB in the beginning and 93.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:15,752 INFO L168 Benchmark]: Boogie Preprocessor took 76.57 ms. Allocated memory is still 125.8 MB. Free memory was 93.9 MB in the beginning and 91.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:15,752 INFO L168 Benchmark]: RCFGBuilder took 1461.20 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 91.8 MB in the beginning and 119.5 MB in the end (delta: -27.7 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:15,753 INFO L168 Benchmark]: TraceAbstraction took 19553.01 ms. Allocated memory was 159.4 MB in the beginning and 864.0 MB in the end (delta: 704.6 MB). Free memory was 119.5 MB in the beginning and 758.5 MB in the end (delta: -638.9 MB). Peak memory consumption was 503.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:15,753 INFO L168 Benchmark]: Witness Printer took 216.15 ms. Allocated memory is still 864.0 MB. Free memory was 758.5 MB in the beginning and 749.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:28:15,756 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 39.9 MB in the beginning and 39.8 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 596.95 ms. Allocated memory is still 125.8 MB. Free memory was 91.8 MB in the beginning and 97.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.08 ms. Allocated memory is still 125.8 MB. Free memory was 96.5 MB in the beginning and 93.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.57 ms. Allocated memory is still 125.8 MB. Free memory was 93.9 MB in the beginning and 91.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1461.20 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 91.8 MB in the beginning and 119.5 MB in the end (delta: -27.7 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19553.01 ms. Allocated memory was 159.4 MB in the beginning and 864.0 MB in the end (delta: 704.6 MB). Free memory was 119.5 MB in the beginning and 758.5 MB in the end (delta: -638.9 MB). Peak memory consumption was 503.6 MB. Max. memory is 16.1 GB. * Witness Printer took 216.15 ms. Allocated memory is still 864.0 MB. Free memory was 758.5 MB in the beginning and 749.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: (s__state <= 4528 && blastFlag == 0) && 4352 <= s__state - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || (((s__state <= 4352 && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: s__state <= 4352 && blastFlag == 0 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0 - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || (((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: (s__state <= 4528 && blastFlag == 1) && 4352 <= s__state - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: ((((((((((((s__state <= 4560 && blastFlag == 2) && 4560 <= s__state) || ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2)) || ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || (s__state <= 3 && s__s3__tmp__next_state___0 <= 4560)) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0)) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag <= 4 && s__state == 4416) && s__hit == 0)) || (blastFlag == 1 && s__state == 4384)) || (((s__state <= 4352 && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state)) || ((blastFlag == 2 && s__state <= 3) && s__hit == 0)) || (blastFlag == 0 && s__state == 4368)) || ((blastFlag == 2 && 4400 == s__state) && s__hit == 0) - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && blastFlag <= 4) && 4352 <= s__state) && s__hit == 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: ((s__state <= 4560 && blastFlag == 2) && 4560 <= s__state) || ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0) - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4432 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.1s, OverallIterations: 26, TraceHistogramMax: 18, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4934 SDtfs, 1570 SDslu, 2831 SDs, 0 SdLazy, 2491 SolverSat, 457 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1274 GetRequests, 1242 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5989occurred in iteration=24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 26 MinimizatonAttempts, 4432 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 177 NumberOfFragments, 434 HoareAnnotationTreeSize, 22 FomulaSimplifications, 8973 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 22 FomulaSimplificationsInter, 2102 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 6603 NumberOfCodeBlocks, 6603 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 6574 ConstructedInterpolants, 0 QuantifiedInterpolants, 2522458 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2139 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 29 InterpolantComputations, 23 PerfectInterpolantSequences, 23541/23607 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...