./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/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 b4872de39e95e4bc5ccbeb0f1761dba68e05980d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:15:30,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:15:30,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:15:31,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:15:31,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:15:31,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:15:31,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:15:31,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:15:31,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:15:31,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:15:31,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:15:31,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:15:31,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:15:31,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:15:31,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:15:31,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:15:31,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:15:31,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:15:31,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:15:31,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:15:31,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:15:31,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:15:31,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:15:31,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:15:31,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:15:31,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:15:31,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:15:31,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:15:31,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:15:31,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:15:31,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:15:31,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:15:31,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:15:31,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:15:31,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:15:31,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:15:31,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:15:31,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:15:31,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:15:31,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:15:31,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:15:31,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:15:31,126 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:15:31,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:15:31,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:15:31,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:15:31,129 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:15:31,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:15:31,129 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:15:31,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:15:31,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:15:31,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:15:31,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:15:31,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:15:31,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:15:31,131 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:15:31,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:15:31,131 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:15:31,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:15:31,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:15:31,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:15:31,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:15:31,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:15:31,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:15:31,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:15:31,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:15:31,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:15:31,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:15:31,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:15:31,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:15:31,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:15:31,134 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_6686adb1-b1b6-432e-9cdb-15d773c17f93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4872de39e95e4bc5ccbeb0f1761dba68e05980d [2020-11-29 22:15:31,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:15:31,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:15:31,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:15:31,393 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:15:31,394 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:15:31,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2020-11-29 22:15:31,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/data/22a5c353a/daadb719716c4afa907f4eda10cbef25/FLAG11f252f92 [2020-11-29 22:15:32,041 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:15:32,042 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2020-11-29 22:15:32,053 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/data/22a5c353a/daadb719716c4afa907f4eda10cbef25/FLAG11f252f92 [2020-11-29 22:15:32,397 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/data/22a5c353a/daadb719716c4afa907f4eda10cbef25 [2020-11-29 22:15:32,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:15:32,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:15:32,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:15:32,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:15:32,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:15:32,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:15:32" (1/1) ... [2020-11-29 22:15:32,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23972091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32, skipping insertion in model container [2020-11-29 22:15:32,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:15:32" (1/1) ... [2020-11-29 22:15:32,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:15:32,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:15:32,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:15:32,818 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:15:32,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:15:32,895 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:15:32,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32 WrapperNode [2020-11-29 22:15:32,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:15:32,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:15:32,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:15:32,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:15:32,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32" (1/1) ... [2020-11-29 22:15:32,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32" (1/1) ... [2020-11-29 22:15:32,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:15:32,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:15:32,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:15:32,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:15:32,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32" (1/1) ... [2020-11-29 22:15:32,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32" (1/1) ... [2020-11-29 22:15:32,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32" (1/1) ... [2020-11-29 22:15:32,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32" (1/1) ... [2020-11-29 22:15:33,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32" (1/1) ... [2020-11-29 22:15:33,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32" (1/1) ... [2020-11-29 22:15:33,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32" (1/1) ... [2020-11-29 22:15:33,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:15:33,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:15:33,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:15:33,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:15:33,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/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 22:15:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:15:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:15:33,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:15:33,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:15:33,287 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 22:15:34,187 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-11-29 22:15:34,187 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-11-29 22:15:34,198 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:15:34,198 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 22:15:34,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:15:34 BoogieIcfgContainer [2020-11-29 22:15:34,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:15:34,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:15:34,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:15:34,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:15:34,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:15:32" (1/3) ... [2020-11-29 22:15:34,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285865e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:15:34, skipping insertion in model container [2020-11-29 22:15:34,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:15:32" (2/3) ... [2020-11-29 22:15:34,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285865e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:15:34, skipping insertion in model container [2020-11-29 22:15:34,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:15:34" (3/3) ... [2020-11-29 22:15:34,227 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-2.c [2020-11-29 22:15:34,240 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:15:34,260 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:15:34,273 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:15:34,301 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:15:34,301 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:15:34,301 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:15:34,301 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:15:34,301 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:15:34,301 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:15:34,302 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:15:34,302 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:15:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-11-29 22:15:34,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 22:15:34,327 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:34,328 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 22:15:34,328 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:34,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:34,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2020-11-29 22:15:34,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:34,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647821676] [2020-11-29 22:15:34,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:34,661 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 22:15:34,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647821676] [2020-11-29 22:15:34,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:34,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:34,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816528347] [2020-11-29 22:15:34,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:34,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:34,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:34,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:34,696 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2020-11-29 22:15:35,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:35,022 INFO L93 Difference]: Finished difference Result 253 states and 428 transitions. [2020-11-29 22:15:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:35,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-29 22:15:35,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:35,045 INFO L225 Difference]: With dead ends: 253 [2020-11-29 22:15:35,046 INFO L226 Difference]: Without dead ends: 115 [2020-11-29 22:15:35,049 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 22:15:35,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-29 22:15:35,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-29 22:15:35,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-29 22:15:35,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2020-11-29 22:15:35,118 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2020-11-29 22:15:35,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:35,120 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2020-11-29 22:15:35,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2020-11-29 22:15:35,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-29 22:15:35,125 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:35,126 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 22:15:35,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:15:35,127 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:35,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:35,131 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2020-11-29 22:15:35,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:35,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295978481] [2020-11-29 22:15:35,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:35,239 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 22:15:35,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295978481] [2020-11-29 22:15:35,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:35,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:35,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926290185] [2020-11-29 22:15:35,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:35,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:35,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:35,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:35,243 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand 3 states. [2020-11-29 22:15:35,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:35,478 INFO L93 Difference]: Finished difference Result 239 states and 362 transitions. [2020-11-29 22:15:35,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:35,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-29 22:15:35,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:35,482 INFO L225 Difference]: With dead ends: 239 [2020-11-29 22:15:35,482 INFO L226 Difference]: Without dead ends: 134 [2020-11-29 22:15:35,483 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 22:15:35,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-29 22:15:35,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2020-11-29 22:15:35,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-29 22:15:35,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2020-11-29 22:15:35,506 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2020-11-29 22:15:35,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:35,507 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2020-11-29 22:15:35,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2020-11-29 22:15:35,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 22:15:35,514 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:35,515 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 22:15:35,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:15:35,515 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:35,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:35,517 INFO L82 PathProgramCache]: Analyzing trace with hash 684962052, now seen corresponding path program 1 times [2020-11-29 22:15:35,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:35,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456196088] [2020-11-29 22:15:35,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:35,623 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 22:15:35,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456196088] [2020-11-29 22:15:35,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:35,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:35,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263285534] [2020-11-29 22:15:35,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:35,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:35,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:35,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:35,626 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand 3 states. [2020-11-29 22:15:35,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:35,810 INFO L93 Difference]: Finished difference Result 271 states and 406 transitions. [2020-11-29 22:15:35,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:35,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-29 22:15:35,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:35,812 INFO L225 Difference]: With dead ends: 271 [2020-11-29 22:15:35,812 INFO L226 Difference]: Without dead ends: 151 [2020-11-29 22:15:35,814 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 22:15:35,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-11-29 22:15:35,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2020-11-29 22:15:35,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-11-29 22:15:35,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2020-11-29 22:15:35,825 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2020-11-29 22:15:35,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:35,825 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2020-11-29 22:15:35,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2020-11-29 22:15:35,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-29 22:15:35,827 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:35,827 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 22:15:35,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:15:35,827 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:35,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:35,828 INFO L82 PathProgramCache]: Analyzing trace with hash -184561774, now seen corresponding path program 1 times [2020-11-29 22:15:35,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:35,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60245472] [2020-11-29 22:15:35,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:35,957 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 22:15:35,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60245472] [2020-11-29 22:15:35,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:35,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:35,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600481348] [2020-11-29 22:15:35,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:35,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:35,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:35,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:35,960 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand 3 states. [2020-11-29 22:15:36,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:36,202 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2020-11-29 22:15:36,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:36,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-29 22:15:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:36,206 INFO L225 Difference]: With dead ends: 335 [2020-11-29 22:15:36,206 INFO L226 Difference]: Without dead ends: 197 [2020-11-29 22:15:36,207 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 22:15:36,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-11-29 22:15:36,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2020-11-29 22:15:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-11-29 22:15:36,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2020-11-29 22:15:36,221 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2020-11-29 22:15:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:36,222 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2020-11-29 22:15:36,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2020-11-29 22:15:36,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-29 22:15:36,224 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:36,226 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 22:15:36,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:15:36,227 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:36,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:36,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1990000108, now seen corresponding path program 1 times [2020-11-29 22:15:36,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:36,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768307319] [2020-11-29 22:15:36,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:36,321 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 22:15:36,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768307319] [2020-11-29 22:15:36,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:36,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:36,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316336313] [2020-11-29 22:15:36,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:36,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:36,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:36,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:36,326 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand 3 states. [2020-11-29 22:15:36,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:36,523 INFO L93 Difference]: Finished difference Result 390 states and 555 transitions. [2020-11-29 22:15:36,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:36,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-29 22:15:36,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:36,526 INFO L225 Difference]: With dead ends: 390 [2020-11-29 22:15:36,526 INFO L226 Difference]: Without dead ends: 212 [2020-11-29 22:15:36,527 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 22:15:36,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-29 22:15:36,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2020-11-29 22:15:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-11-29 22:15:36,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2020-11-29 22:15:36,548 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2020-11-29 22:15:36,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:36,550 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2020-11-29 22:15:36,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:36,550 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2020-11-29 22:15:36,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-29 22:15:36,552 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:36,555 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 22:15:36,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:15:36,555 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:36,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:36,556 INFO L82 PathProgramCache]: Analyzing trace with hash -843012112, now seen corresponding path program 1 times [2020-11-29 22:15:36,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:36,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949458393] [2020-11-29 22:15:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:36,655 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 22:15:36,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949458393] [2020-11-29 22:15:36,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:36,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:36,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071801455] [2020-11-29 22:15:36,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:36,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:36,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:36,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:36,658 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand 3 states. [2020-11-29 22:15:36,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:36,893 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2020-11-29 22:15:36,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:36,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-11-29 22:15:36,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:36,897 INFO L225 Difference]: With dead ends: 428 [2020-11-29 22:15:36,897 INFO L226 Difference]: Without dead ends: 231 [2020-11-29 22:15:36,898 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 22:15:36,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-11-29 22:15:36,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2020-11-29 22:15:36,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-11-29 22:15:36,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2020-11-29 22:15:36,919 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2020-11-29 22:15:36,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:36,921 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2020-11-29 22:15:36,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:36,921 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2020-11-29 22:15:36,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-29 22:15:36,927 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:36,927 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 22:15:36,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 22:15:36,927 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:36,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:36,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1725839848, now seen corresponding path program 1 times [2020-11-29 22:15:36,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:36,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152244396] [2020-11-29 22:15:36,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:37,040 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 22:15:37,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152244396] [2020-11-29 22:15:37,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:37,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:37,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273994228] [2020-11-29 22:15:37,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:37,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:37,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:37,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:37,045 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand 3 states. [2020-11-29 22:15:37,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:37,092 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2020-11-29 22:15:37,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:37,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-29 22:15:37,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:37,096 INFO L225 Difference]: With dead ends: 661 [2020-11-29 22:15:37,096 INFO L226 Difference]: Without dead ends: 443 [2020-11-29 22:15:37,097 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 22:15:37,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-11-29 22:15:37,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2020-11-29 22:15:37,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-11-29 22:15:37,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 606 transitions. [2020-11-29 22:15:37,114 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 606 transitions. Word has length 105 [2020-11-29 22:15:37,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:37,114 INFO L481 AbstractCegarLoop]: Abstraction has 443 states and 606 transitions. [2020-11-29 22:15:37,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:37,115 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 606 transitions. [2020-11-29 22:15:37,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-29 22:15:37,117 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:37,117 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 22:15:37,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 22:15:37,118 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:37,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:37,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1889855194, now seen corresponding path program 1 times [2020-11-29 22:15:37,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:37,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438213478] [2020-11-29 22:15:37,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:37,196 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 22:15:37,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438213478] [2020-11-29 22:15:37,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:37,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:37,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896547111] [2020-11-29 22:15:37,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:37,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:37,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:37,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:37,199 INFO L87 Difference]: Start difference. First operand 443 states and 606 transitions. Second operand 3 states. [2020-11-29 22:15:37,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:37,236 INFO L93 Difference]: Finished difference Result 897 states and 1226 transitions. [2020-11-29 22:15:37,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:37,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-29 22:15:37,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:37,242 INFO L225 Difference]: With dead ends: 897 [2020-11-29 22:15:37,242 INFO L226 Difference]: Without dead ends: 464 [2020-11-29 22:15:37,244 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 22:15:37,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-11-29 22:15:37,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-11-29 22:15:37,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-11-29 22:15:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 633 transitions. [2020-11-29 22:15:37,265 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 633 transitions. Word has length 105 [2020-11-29 22:15:37,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:37,266 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 633 transitions. [2020-11-29 22:15:37,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:37,266 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 633 transitions. [2020-11-29 22:15:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-29 22:15:37,268 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:37,268 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] [2020-11-29 22:15:37,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 22:15:37,269 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:37,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:37,269 INFO L82 PathProgramCache]: Analyzing trace with hash -810746188, now seen corresponding path program 1 times [2020-11-29 22:15:37,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:37,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155417567] [2020-11-29 22:15:37,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:37,333 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 22:15:37,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155417567] [2020-11-29 22:15:37,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:37,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:37,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222212132] [2020-11-29 22:15:37,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:37,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:37,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:37,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:37,345 INFO L87 Difference]: Start difference. First operand 464 states and 633 transitions. Second operand 3 states. [2020-11-29 22:15:37,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:37,381 INFO L93 Difference]: Finished difference Result 945 states and 1287 transitions. [2020-11-29 22:15:37,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:37,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-29 22:15:37,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:37,386 INFO L225 Difference]: With dead ends: 945 [2020-11-29 22:15:37,386 INFO L226 Difference]: Without dead ends: 491 [2020-11-29 22:15:37,387 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 22:15:37,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-11-29 22:15:37,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-11-29 22:15:37,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-11-29 22:15:37,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 667 transitions. [2020-11-29 22:15:37,403 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 667 transitions. Word has length 106 [2020-11-29 22:15:37,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:37,403 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 667 transitions. [2020-11-29 22:15:37,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:37,404 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 667 transitions. [2020-11-29 22:15:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-11-29 22:15:37,406 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:37,406 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 22:15:37,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 22:15:37,407 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:37,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:37,409 INFO L82 PathProgramCache]: Analyzing trace with hash 625791090, now seen corresponding path program 1 times [2020-11-29 22:15:37,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:37,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430067042] [2020-11-29 22:15:37,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:37,496 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 22:15:37,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430067042] [2020-11-29 22:15:37,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:37,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:37,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604872915] [2020-11-29 22:15:37,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:37,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:37,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:37,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:37,506 INFO L87 Difference]: Start difference. First operand 491 states and 667 transitions. Second operand 3 states. [2020-11-29 22:15:37,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:37,562 INFO L93 Difference]: Finished difference Result 709 states and 967 transitions. [2020-11-29 22:15:37,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:37,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-11-29 22:15:37,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:37,568 INFO L225 Difference]: With dead ends: 709 [2020-11-29 22:15:37,568 INFO L226 Difference]: Without dead ends: 707 [2020-11-29 22:15:37,569 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 22:15:37,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-11-29 22:15:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2020-11-29 22:15:37,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-11-29 22:15:37,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 965 transitions. [2020-11-29 22:15:37,594 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 965 transitions. Word has length 107 [2020-11-29 22:15:37,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:37,594 INFO L481 AbstractCegarLoop]: Abstraction has 707 states and 965 transitions. [2020-11-29 22:15:37,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:37,594 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 965 transitions. [2020-11-29 22:15:37,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-11-29 22:15:37,598 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:37,598 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:37,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 22:15:37,599 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:37,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:37,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1290635395, now seen corresponding path program 1 times [2020-11-29 22:15:37,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:37,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927074441] [2020-11-29 22:15:37,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-11-29 22:15:37,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927074441] [2020-11-29 22:15:37,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:37,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:37,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393105262] [2020-11-29 22:15:37,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:37,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:37,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:37,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:37,692 INFO L87 Difference]: Start difference. First operand 707 states and 965 transitions. Second operand 3 states. [2020-11-29 22:15:37,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:37,964 INFO L93 Difference]: Finished difference Result 1530 states and 2149 transitions. [2020-11-29 22:15:37,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:37,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-11-29 22:15:37,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:37,972 INFO L225 Difference]: With dead ends: 1530 [2020-11-29 22:15:37,972 INFO L226 Difference]: Without dead ends: 857 [2020-11-29 22:15:37,974 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 22:15:37,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-11-29 22:15:37,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 824. [2020-11-29 22:15:37,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-11-29 22:15:38,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1154 transitions. [2020-11-29 22:15:38,001 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1154 transitions. Word has length 176 [2020-11-29 22:15:38,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:38,002 INFO L481 AbstractCegarLoop]: Abstraction has 824 states and 1154 transitions. [2020-11-29 22:15:38,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:38,002 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1154 transitions. [2020-11-29 22:15:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-11-29 22:15:38,007 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:38,007 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:38,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 22:15:38,007 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:38,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:38,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1154586908, now seen corresponding path program 2 times [2020-11-29 22:15:38,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:38,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476652969] [2020-11-29 22:15:38,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-11-29 22:15:38,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476652969] [2020-11-29 22:15:38,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:38,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:38,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555016132] [2020-11-29 22:15:38,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:38,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:38,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:38,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:38,127 INFO L87 Difference]: Start difference. First operand 824 states and 1154 transitions. Second operand 3 states. [2020-11-29 22:15:38,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:38,407 INFO L93 Difference]: Finished difference Result 1892 states and 2730 transitions. [2020-11-29 22:15:38,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:38,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-11-29 22:15:38,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:38,414 INFO L225 Difference]: With dead ends: 1892 [2020-11-29 22:15:38,415 INFO L226 Difference]: Without dead ends: 1054 [2020-11-29 22:15:38,416 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 22:15:38,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2020-11-29 22:15:38,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1013. [2020-11-29 22:15:38,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-11-29 22:15:38,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1406 transitions. [2020-11-29 22:15:38,446 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1406 transitions. Word has length 189 [2020-11-29 22:15:38,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:38,446 INFO L481 AbstractCegarLoop]: Abstraction has 1013 states and 1406 transitions. [2020-11-29 22:15:38,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:38,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1406 transitions. [2020-11-29 22:15:38,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-11-29 22:15:38,451 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:38,451 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:38,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 22:15:38,451 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:38,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:38,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1143144718, now seen corresponding path program 1 times [2020-11-29 22:15:38,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:38,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485163282] [2020-11-29 22:15:38,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:38,584 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-11-29 22:15:38,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485163282] [2020-11-29 22:15:38,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:38,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:38,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061995715] [2020-11-29 22:15:38,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:38,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:38,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:38,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:38,586 INFO L87 Difference]: Start difference. First operand 1013 states and 1406 transitions. Second operand 3 states. [2020-11-29 22:15:38,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:38,863 INFO L93 Difference]: Finished difference Result 2148 states and 3007 transitions. [2020-11-29 22:15:38,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:38,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-11-29 22:15:38,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:38,871 INFO L225 Difference]: With dead ends: 2148 [2020-11-29 22:15:38,871 INFO L226 Difference]: Without dead ends: 1127 [2020-11-29 22:15:38,873 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 22:15:38,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-11-29 22:15:38,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1088. [2020-11-29 22:15:38,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-11-29 22:15:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1502 transitions. [2020-11-29 22:15:38,910 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1502 transitions. Word has length 210 [2020-11-29 22:15:38,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:38,911 INFO L481 AbstractCegarLoop]: Abstraction has 1088 states and 1502 transitions. [2020-11-29 22:15:38,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:38,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1502 transitions. [2020-11-29 22:15:38,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-11-29 22:15:38,916 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:38,917 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:38,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 22:15:38,917 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:38,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:38,918 INFO L82 PathProgramCache]: Analyzing trace with hash 455987487, now seen corresponding path program 1 times [2020-11-29 22:15:38,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:38,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162927959] [2020-11-29 22:15:38,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:39,054 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-11-29 22:15:39,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162927959] [2020-11-29 22:15:39,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:39,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:39,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244755714] [2020-11-29 22:15:39,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:39,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:39,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:39,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:39,057 INFO L87 Difference]: Start difference. First operand 1088 states and 1502 transitions. Second operand 3 states. [2020-11-29 22:15:39,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:39,329 INFO L93 Difference]: Finished difference Result 2298 states and 3196 transitions. [2020-11-29 22:15:39,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:39,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-11-29 22:15:39,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:39,337 INFO L225 Difference]: With dead ends: 2298 [2020-11-29 22:15:39,337 INFO L226 Difference]: Without dead ends: 1208 [2020-11-29 22:15:39,339 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 22:15:39,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-11-29 22:15:39,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1172. [2020-11-29 22:15:39,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-11-29 22:15:39,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1613 transitions. [2020-11-29 22:15:39,374 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1613 transitions. Word has length 234 [2020-11-29 22:15:39,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:39,375 INFO L481 AbstractCegarLoop]: Abstraction has 1172 states and 1613 transitions. [2020-11-29 22:15:39,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:39,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1613 transitions. [2020-11-29 22:15:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-11-29 22:15:39,380 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:39,380 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:39,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 22:15:39,380 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:39,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:39,381 INFO L82 PathProgramCache]: Analyzing trace with hash 574428961, now seen corresponding path program 1 times [2020-11-29 22:15:39,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:39,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434656827] [2020-11-29 22:15:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:39,490 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-11-29 22:15:39,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434656827] [2020-11-29 22:15:39,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:39,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:39,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095046230] [2020-11-29 22:15:39,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:39,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:39,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:39,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:39,493 INFO L87 Difference]: Start difference. First operand 1172 states and 1613 transitions. Second operand 3 states. [2020-11-29 22:15:39,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:39,784 INFO L93 Difference]: Finished difference Result 2466 states and 3421 transitions. [2020-11-29 22:15:39,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:39,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-11-29 22:15:39,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:39,793 INFO L225 Difference]: With dead ends: 2466 [2020-11-29 22:15:39,793 INFO L226 Difference]: Without dead ends: 1304 [2020-11-29 22:15:39,797 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 22:15:39,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-11-29 22:15:39,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1265. [2020-11-29 22:15:39,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2020-11-29 22:15:39,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1745 transitions. [2020-11-29 22:15:39,842 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1745 transitions. Word has length 234 [2020-11-29 22:15:39,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:39,842 INFO L481 AbstractCegarLoop]: Abstraction has 1265 states and 1745 transitions. [2020-11-29 22:15:39,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1745 transitions. [2020-11-29 22:15:39,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-11-29 22:15:39,849 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:39,849 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:39,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 22:15:39,850 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:39,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:39,851 INFO L82 PathProgramCache]: Analyzing trace with hash 172133823, now seen corresponding path program 1 times [2020-11-29 22:15:39,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:39,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807461707] [2020-11-29 22:15:39,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:39,993 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2020-11-29 22:15:39,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807461707] [2020-11-29 22:15:39,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:39,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:39,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306165902] [2020-11-29 22:15:39,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:39,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:39,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:39,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:39,997 INFO L87 Difference]: Start difference. First operand 1265 states and 1745 transitions. Second operand 3 states. [2020-11-29 22:15:40,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:40,055 INFO L93 Difference]: Finished difference Result 3718 states and 5136 transitions. [2020-11-29 22:15:40,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:40,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-11-29 22:15:40,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:40,070 INFO L225 Difference]: With dead ends: 3718 [2020-11-29 22:15:40,071 INFO L226 Difference]: Without dead ends: 2490 [2020-11-29 22:15:40,073 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 22:15:40,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2020-11-29 22:15:40,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2488. [2020-11-29 22:15:40,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2020-11-29 22:15:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3435 transitions. [2020-11-29 22:15:40,157 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3435 transitions. Word has length 264 [2020-11-29 22:15:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:40,157 INFO L481 AbstractCegarLoop]: Abstraction has 2488 states and 3435 transitions. [2020-11-29 22:15:40,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:40,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3435 transitions. [2020-11-29 22:15:40,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-11-29 22:15:40,176 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:40,176 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:40,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 22:15:40,177 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:40,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:40,178 INFO L82 PathProgramCache]: Analyzing trace with hash 290575297, now seen corresponding path program 1 times [2020-11-29 22:15:40,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:40,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520525526] [2020-11-29 22:15:40,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:40,305 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2020-11-29 22:15:40,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520525526] [2020-11-29 22:15:40,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:40,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:40,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761200517] [2020-11-29 22:15:40,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:40,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:40,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:40,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:40,308 INFO L87 Difference]: Start difference. First operand 2488 states and 3435 transitions. Second operand 3 states. [2020-11-29 22:15:40,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:40,648 INFO L93 Difference]: Finished difference Result 5251 states and 7296 transitions. [2020-11-29 22:15:40,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:40,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-11-29 22:15:40,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:40,667 INFO L225 Difference]: With dead ends: 5251 [2020-11-29 22:15:40,667 INFO L226 Difference]: Without dead ends: 2770 [2020-11-29 22:15:40,672 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 22:15:40,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2020-11-29 22:15:40,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2698. [2020-11-29 22:15:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2698 states. [2020-11-29 22:15:40,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3747 transitions. [2020-11-29 22:15:40,763 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3747 transitions. Word has length 264 [2020-11-29 22:15:40,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:40,764 INFO L481 AbstractCegarLoop]: Abstraction has 2698 states and 3747 transitions. [2020-11-29 22:15:40,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:40,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3747 transitions. [2020-11-29 22:15:40,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-11-29 22:15:40,773 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:40,774 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:40,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 22:15:40,774 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:40,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:40,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1239310138, now seen corresponding path program 1 times [2020-11-29 22:15:40,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:40,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843641263] [2020-11-29 22:15:40,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-11-29 22:15:40,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843641263] [2020-11-29 22:15:40,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:40,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:40,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596828308] [2020-11-29 22:15:40,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:40,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:40,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:40,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:40,940 INFO L87 Difference]: Start difference. First operand 2698 states and 3747 transitions. Second operand 3 states. [2020-11-29 22:15:41,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:41,279 INFO L93 Difference]: Finished difference Result 5443 states and 7548 transitions. [2020-11-29 22:15:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:41,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2020-11-29 22:15:41,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:41,297 INFO L225 Difference]: With dead ends: 5443 [2020-11-29 22:15:41,297 INFO L226 Difference]: Without dead ends: 2764 [2020-11-29 22:15:41,301 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 22:15:41,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2020-11-29 22:15:41,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2692. [2020-11-29 22:15:41,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-11-29 22:15:41,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3711 transitions. [2020-11-29 22:15:41,403 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3711 transitions. Word has length 299 [2020-11-29 22:15:41,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:41,404 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3711 transitions. [2020-11-29 22:15:41,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:41,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3711 transitions. [2020-11-29 22:15:41,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-11-29 22:15:41,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:41,416 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:41,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 22:15:41,417 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:41,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:41,418 INFO L82 PathProgramCache]: Analyzing trace with hash 918915254, now seen corresponding path program 1 times [2020-11-29 22:15:41,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:41,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870896247] [2020-11-29 22:15:41,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:41,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 663 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-11-29 22:15:41,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870896247] [2020-11-29 22:15:41,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:41,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:41,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287664624] [2020-11-29 22:15:41,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:41,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:41,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:41,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:41,613 INFO L87 Difference]: Start difference. First operand 2692 states and 3711 transitions. Second operand 3 states. [2020-11-29 22:15:41,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:41,875 INFO L93 Difference]: Finished difference Result 5407 states and 7446 transitions. [2020-11-29 22:15:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:41,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 322 [2020-11-29 22:15:41,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:41,892 INFO L225 Difference]: With dead ends: 5407 [2020-11-29 22:15:41,892 INFO L226 Difference]: Without dead ends: 2752 [2020-11-29 22:15:41,896 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 22:15:41,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2020-11-29 22:15:41,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2692. [2020-11-29 22:15:41,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-11-29 22:15:41,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3657 transitions. [2020-11-29 22:15:41,984 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3657 transitions. Word has length 322 [2020-11-29 22:15:41,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:41,985 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3657 transitions. [2020-11-29 22:15:41,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:41,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3657 transitions. [2020-11-29 22:15:41,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-11-29 22:15:41,995 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:41,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:41,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 22:15:41,996 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:41,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:41,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1665023372, now seen corresponding path program 1 times [2020-11-29 22:15:41,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:41,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725488294] [2020-11-29 22:15:41,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:42,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-29 22:15:42,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725488294] [2020-11-29 22:15:42,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:42,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:42,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167550870] [2020-11-29 22:15:42,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:42,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:42,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:42,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:42,159 INFO L87 Difference]: Start difference. First operand 2692 states and 3657 transitions. Second operand 3 states. [2020-11-29 22:15:42,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:42,426 INFO L93 Difference]: Finished difference Result 5653 states and 7626 transitions. [2020-11-29 22:15:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:42,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2020-11-29 22:15:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:42,444 INFO L225 Difference]: With dead ends: 5653 [2020-11-29 22:15:42,444 INFO L226 Difference]: Without dead ends: 2998 [2020-11-29 22:15:42,448 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 22:15:42,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2020-11-29 22:15:42,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2782. [2020-11-29 22:15:42,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2782 states. [2020-11-29 22:15:42,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3777 transitions. [2020-11-29 22:15:42,531 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3777 transitions. Word has length 336 [2020-11-29 22:15:42,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:42,532 INFO L481 AbstractCegarLoop]: Abstraction has 2782 states and 3777 transitions. [2020-11-29 22:15:42,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:42,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3777 transitions. [2020-11-29 22:15:42,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-11-29 22:15:42,542 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:42,542 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:42,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 22:15:42,543 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:42,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:42,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1597112402, now seen corresponding path program 1 times [2020-11-29 22:15:42,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:42,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902228245] [2020-11-29 22:15:42,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2020-11-29 22:15:42,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902228245] [2020-11-29 22:15:42,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:42,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:42,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875810671] [2020-11-29 22:15:42,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:42,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:42,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:42,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:42,768 INFO L87 Difference]: Start difference. First operand 2782 states and 3777 transitions. Second operand 3 states. [2020-11-29 22:15:42,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:42,892 INFO L93 Difference]: Finished difference Result 7882 states and 10755 transitions. [2020-11-29 22:15:42,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:42,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2020-11-29 22:15:42,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:42,924 INFO L225 Difference]: With dead ends: 7882 [2020-11-29 22:15:42,924 INFO L226 Difference]: Without dead ends: 5137 [2020-11-29 22:15:42,929 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 22:15:42,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2020-11-29 22:15:43,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5135. [2020-11-29 22:15:43,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5135 states. [2020-11-29 22:15:43,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 7007 transitions. [2020-11-29 22:15:43,111 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 7007 transitions. Word has length 337 [2020-11-29 22:15:43,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:43,112 INFO L481 AbstractCegarLoop]: Abstraction has 5135 states and 7007 transitions. [2020-11-29 22:15:43,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:43,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 7007 transitions. [2020-11-29 22:15:43,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-11-29 22:15:43,123 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:43,124 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:43,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-29 22:15:43,124 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:43,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:43,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1354743787, now seen corresponding path program 1 times [2020-11-29 22:15:43,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:43,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597029411] [2020-11-29 22:15:43,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:43,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-11-29 22:15:43,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597029411] [2020-11-29 22:15:43,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962903612] [2020-11-29 22:15:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/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 22:15:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:43,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:15:43,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:15:43,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-11-29 22:15:43,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:15:43,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 22:15:43,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142567984] [2020-11-29 22:15:43,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:15:43,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:43,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:15:43,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:15:43,930 INFO L87 Difference]: Start difference. First operand 5135 states and 7007 transitions. Second operand 4 states. [2020-11-29 22:15:44,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:44,681 INFO L93 Difference]: Finished difference Result 10175 states and 13865 transitions. [2020-11-29 22:15:44,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:15:44,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 361 [2020-11-29 22:15:44,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:44,715 INFO L225 Difference]: With dead ends: 10175 [2020-11-29 22:15:44,715 INFO L226 Difference]: Without dead ends: 7688 [2020-11-29 22:15:44,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 363 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 22:15:44,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2020-11-29 22:15:44,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 5669. [2020-11-29 22:15:44,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2020-11-29 22:15:44,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7643 transitions. [2020-11-29 22:15:44,962 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7643 transitions. Word has length 361 [2020-11-29 22:15:44,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:44,963 INFO L481 AbstractCegarLoop]: Abstraction has 5669 states and 7643 transitions. [2020-11-29 22:15:44,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:15:44,963 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7643 transitions. [2020-11-29 22:15:44,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-11-29 22:15:44,972 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:44,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:45,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-11-29 22:15:45,200 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:45,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:45,200 INFO L82 PathProgramCache]: Analyzing trace with hash 290805068, now seen corresponding path program 2 times [2020-11-29 22:15:45,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:45,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805088568] [2020-11-29 22:15:45,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:45,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-29 22:15:45,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805088568] [2020-11-29 22:15:45,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375249458] [2020-11-29 22:15:45,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/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 22:15:45,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 22:15:45,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 22:15:45,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:15:45,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:15:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-29 22:15:45,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:15:45,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 22:15:45,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233851511] [2020-11-29 22:15:45,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:15:45,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:45,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:15:45,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:15:45,806 INFO L87 Difference]: Start difference. First operand 5669 states and 7643 transitions. Second operand 4 states. [2020-11-29 22:15:46,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:46,341 INFO L93 Difference]: Finished difference Result 12703 states and 17150 transitions. [2020-11-29 22:15:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:15:46,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2020-11-29 22:15:46,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:46,358 INFO L225 Difference]: With dead ends: 12703 [2020-11-29 22:15:46,358 INFO L226 Difference]: Without dead ends: 7058 [2020-11-29 22:15:46,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 376 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 22:15:46,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2020-11-29 22:15:46,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 5789. [2020-11-29 22:15:46,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5789 states. [2020-11-29 22:15:46,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 7724 transitions. [2020-11-29 22:15:46,571 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 7724 transitions. Word has length 374 [2020-11-29 22:15:46,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:46,572 INFO L481 AbstractCegarLoop]: Abstraction has 5789 states and 7724 transitions. [2020-11-29 22:15:46,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:15:46,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 7724 transitions. [2020-11-29 22:15:46,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-11-29 22:15:46,584 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:46,585 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:46,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-11-29 22:15:46,800 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:46,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:46,800 INFO L82 PathProgramCache]: Analyzing trace with hash -939951161, now seen corresponding path program 1 times [2020-11-29 22:15:46,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:46,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35787711] [2020-11-29 22:15:46,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-11-29 22:15:47,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35787711] [2020-11-29 22:15:47,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:15:47,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:15:47,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584591686] [2020-11-29 22:15:47,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:47,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:47,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:47,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:15:47,078 INFO L87 Difference]: Start difference. First operand 5789 states and 7724 transitions. Second operand 3 states. [2020-11-29 22:15:47,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:47,529 INFO L93 Difference]: Finished difference Result 11133 states and 14642 transitions. [2020-11-29 22:15:47,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:47,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 413 [2020-11-29 22:15:47,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:47,538 INFO L225 Difference]: With dead ends: 11133 [2020-11-29 22:15:47,539 INFO L226 Difference]: Without dead ends: 3109 [2020-11-29 22:15:47,547 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 22:15:47,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2020-11-29 22:15:47,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3043. [2020-11-29 22:15:47,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3043 states. [2020-11-29 22:15:47,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4063 transitions. [2020-11-29 22:15:47,636 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4063 transitions. Word has length 413 [2020-11-29 22:15:47,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:47,637 INFO L481 AbstractCegarLoop]: Abstraction has 3043 states and 4063 transitions. [2020-11-29 22:15:47,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:47,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4063 transitions. [2020-11-29 22:15:47,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-11-29 22:15:47,646 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:47,647 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:47,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-29 22:15:47,647 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:47,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:47,648 INFO L82 PathProgramCache]: Analyzing trace with hash -826650578, now seen corresponding path program 1 times [2020-11-29 22:15:47,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:47,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181828116] [2020-11-29 22:15:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1648 proven. 14 refuted. 0 times theorem prover too weak. 1236 trivial. 0 not checked. [2020-11-29 22:15:48,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181828116] [2020-11-29 22:15:48,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081618620] [2020-11-29 22:15:48,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/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 22:15:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:48,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:15:48,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:15:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1075 proven. 0 refuted. 0 times theorem prover too weak. 1823 trivial. 0 not checked. [2020-11-29 22:15:48,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:15:48,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-29 22:15:48,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122240668] [2020-11-29 22:15:48,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:48,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:48,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:48,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:15:48,592 INFO L87 Difference]: Start difference. First operand 3043 states and 4063 transitions. Second operand 3 states. [2020-11-29 22:15:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:48,650 INFO L93 Difference]: Finished difference Result 3068 states and 4093 transitions. [2020-11-29 22:15:48,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:48,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 511 [2020-11-29 22:15:48,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:48,657 INFO L225 Difference]: With dead ends: 3068 [2020-11-29 22:15:48,657 INFO L226 Difference]: Without dead ends: 2571 [2020-11-29 22:15:48,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:15:48,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2020-11-29 22:15:48,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2548. [2020-11-29 22:15:48,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2020-11-29 22:15:48,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3399 transitions. [2020-11-29 22:15:48,719 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3399 transitions. Word has length 511 [2020-11-29 22:15:48,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:48,720 INFO L481 AbstractCegarLoop]: Abstraction has 2548 states and 3399 transitions. [2020-11-29 22:15:48,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:48,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3399 transitions. [2020-11-29 22:15:48,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2020-11-29 22:15:48,726 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:48,727 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 16, 16, 14, 14, 13, 13, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:48,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-11-29 22:15:48,952 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:48,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:48,952 INFO L82 PathProgramCache]: Analyzing trace with hash -301655084, now seen corresponding path program 1 times [2020-11-29 22:15:48,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:48,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233997232] [2020-11-29 22:15:48,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2784 backedges. 1623 proven. 14 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2020-11-29 22:15:49,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233997232] [2020-11-29 22:15:49,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618692155] [2020-11-29 22:15:49,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:15:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:49,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:15:49,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:15:49,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2784 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 2506 trivial. 0 not checked. [2020-11-29 22:15:49,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 22:15:49,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-29 22:15:49,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347593435] [2020-11-29 22:15:49,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:15:49,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:49,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:15:49,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:15:49,596 INFO L87 Difference]: Start difference. First operand 2548 states and 3399 transitions. Second operand 3 states. [2020-11-29 22:15:49,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:49,822 INFO L93 Difference]: Finished difference Result 5167 states and 6909 transitions. [2020-11-29 22:15:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:15:49,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 512 [2020-11-29 22:15:49,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:49,830 INFO L225 Difference]: With dead ends: 5167 [2020-11-29 22:15:49,830 INFO L226 Difference]: Without dead ends: 2656 [2020-11-29 22:15:49,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:15:49,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2020-11-29 22:15:49,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2653. [2020-11-29 22:15:49,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2653 states. [2020-11-29 22:15:49,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 3411 transitions. [2020-11-29 22:15:49,901 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 3411 transitions. Word has length 512 [2020-11-29 22:15:49,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:49,902 INFO L481 AbstractCegarLoop]: Abstraction has 2653 states and 3411 transitions. [2020-11-29 22:15:49,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:15:49,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 3411 transitions. [2020-11-29 22:15:49,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2020-11-29 22:15:49,911 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:15:49,912 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:15:50,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:15:50,128 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:15:50,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:15:50,128 INFO L82 PathProgramCache]: Analyzing trace with hash 44620561, now seen corresponding path program 2 times [2020-11-29 22:15:50,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:15:50,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424355266] [2020-11-29 22:15:50,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:15:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2020-11-29 22:15:50,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424355266] [2020-11-29 22:15:50,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613690949] [2020-11-29 22:15:50,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:15:50,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 22:15:50,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 22:15:50,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 22:15:50,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:15:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2020-11-29 22:15:51,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:15:51,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-29 22:15:51,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795605389] [2020-11-29 22:15:51,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:15:51,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:15:51,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:15:51,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:15:51,155 INFO L87 Difference]: Start difference. First operand 2653 states and 3411 transitions. Second operand 4 states. [2020-11-29 22:15:51,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:15:51,386 INFO L93 Difference]: Finished difference Result 2888 states and 3708 transitions. [2020-11-29 22:15:51,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:15:51,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 623 [2020-11-29 22:15:51,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:15:51,387 INFO L225 Difference]: With dead ends: 2888 [2020-11-29 22:15:51,387 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:15:51,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 625 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 22:15:51,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:15:51,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:15:51,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:15:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:15:51,394 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 623 [2020-11-29 22:15:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:15:51,394 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:15:51,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:15:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:15:51,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:15:51,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-29 22:15:51,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 22:15:52,079 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 115 [2020-11-29 22:15:52,282 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 20 [2020-11-29 22:15:52,556 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2020-11-29 22:15:53,464 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2020-11-29 22:15:53,696 INFO L274 CegarLoopResult]: For program point L531(lines 531 535) no Hoare annotation was computed. [2020-11-29 22:15:53,696 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 22:15:53,696 INFO L274 CegarLoopResult]: For program point L433(lines 433 435) no Hoare annotation was computed. [2020-11-29 22:15:53,696 INFO L274 CegarLoopResult]: For program point L334(lines 334 336) no Hoare annotation was computed. [2020-11-29 22:15:53,697 INFO L277 CegarLoopResult]: At program point L202(lines 201 489) the Hoare annotation is: true [2020-11-29 22:15:53,697 INFO L274 CegarLoopResult]: For program point L169(lines 169 499) no Hoare annotation was computed. [2020-11-29 22:15:53,697 INFO L274 CegarLoopResult]: For program point L136(lines 136 510) no Hoare annotation was computed. [2020-11-29 22:15:53,697 INFO L274 CegarLoopResult]: For program point L103(lines 103 521) no Hoare annotation was computed. [2020-11-29 22:15:53,697 INFO L270 CegarLoopResult]: At program point L170(lines 166 500) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-29 22:15:53,697 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 22:15:53,697 INFO L274 CegarLoopResult]: For program point L468(lines 468 470) no Hoare annotation was computed. [2020-11-29 22:15:53,698 INFO L274 CegarLoopResult]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2020-11-29 22:15:53,698 INFO L274 CegarLoopResult]: For program point L436(lines 436 440) no Hoare annotation was computed. [2020-11-29 22:15:53,698 INFO L274 CegarLoopResult]: For program point L436-2(lines 436 440) no Hoare annotation was computed. [2020-11-29 22:15:53,698 INFO L274 CegarLoopResult]: For program point L337(lines 337 341) no Hoare annotation was computed. [2020-11-29 22:15:53,698 INFO L274 CegarLoopResult]: For program point L271(lines 271 273) no Hoare annotation was computed. [2020-11-29 22:15:53,699 INFO L274 CegarLoopResult]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2020-11-29 22:15:53,699 INFO L274 CegarLoopResult]: For program point L271-2(lines 203 486) no Hoare annotation was computed. [2020-11-29 22:15:53,700 INFO L274 CegarLoopResult]: For program point L172(lines 172 498) no Hoare annotation was computed. [2020-11-29 22:15:53,700 INFO L274 CegarLoopResult]: For program point L139(lines 139 509) no Hoare annotation was computed. [2020-11-29 22:15:53,700 INFO L274 CegarLoopResult]: For program point L106(lines 106 520) no Hoare annotation was computed. [2020-11-29 22:15:53,700 INFO L270 CegarLoopResult]: At program point L140(lines 136 510) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-29 22:15:53,700 INFO L274 CegarLoopResult]: For program point L306(lines 306 308) no Hoare annotation was computed. [2020-11-29 22:15:53,700 INFO L274 CegarLoopResult]: For program point L240(lines 240 243) no Hoare annotation was computed. [2020-11-29 22:15:53,700 INFO L274 CegarLoopResult]: For program point L306-2(lines 203 486) no Hoare annotation was computed. [2020-11-29 22:15:53,700 INFO L274 CegarLoopResult]: For program point L406(lines 406 408) no Hoare annotation was computed. [2020-11-29 22:15:53,701 INFO L274 CegarLoopResult]: For program point L373(lines 373 375) no Hoare annotation was computed. [2020-11-29 22:15:53,701 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 22:15:53,701 INFO L274 CegarLoopResult]: For program point L175(lines 175 497) no Hoare annotation was computed. [2020-11-29 22:15:53,701 INFO L274 CegarLoopResult]: For program point L142(lines 142 508) no Hoare annotation was computed. [2020-11-29 22:15:53,701 INFO L274 CegarLoopResult]: For program point L109(lines 109 519) no Hoare annotation was computed. [2020-11-29 22:15:53,701 INFO L270 CegarLoopResult]: At program point L176(lines 172 498) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-29 22:15:53,701 INFO L274 CegarLoopResult]: For program point L474(lines 474 476) no Hoare annotation was computed. [2020-11-29 22:15:53,702 INFO L274 CegarLoopResult]: For program point L474-2(lines 474 476) no Hoare annotation was computed. [2020-11-29 22:15:53,702 INFO L277 CegarLoopResult]: At program point L541(lines 99 542) the Hoare annotation is: true [2020-11-29 22:15:53,702 INFO L274 CegarLoopResult]: For program point L277(lines 277 281) no Hoare annotation was computed. [2020-11-29 22:15:53,702 INFO L274 CegarLoopResult]: For program point L277-2(lines 277 281) no Hoare annotation was computed. [2020-11-29 22:15:53,702 INFO L274 CegarLoopResult]: For program point L178(lines 178 496) no Hoare annotation was computed. [2020-11-29 22:15:53,702 INFO L274 CegarLoopResult]: For program point L145(lines 145 507) no Hoare annotation was computed. [2020-11-29 22:15:53,702 INFO L274 CegarLoopResult]: For program point L112(lines 112 518) no Hoare annotation was computed. [2020-11-29 22:15:53,702 INFO L270 CegarLoopResult]: At program point L146(lines 142 508) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-29 22:15:53,703 INFO L274 CegarLoopResult]: For program point L213(lines 213 215) no Hoare annotation was computed. [2020-11-29 22:15:53,703 INFO L274 CegarLoopResult]: For program point L213-2(lines 213 215) no Hoare annotation was computed. [2020-11-29 22:15:53,703 INFO L274 CegarLoopResult]: For program point L181(lines 181 495) no Hoare annotation was computed. [2020-11-29 22:15:53,703 INFO L274 CegarLoopResult]: For program point L148(lines 148 506) no Hoare annotation was computed. [2020-11-29 22:15:53,703 INFO L274 CegarLoopResult]: For program point L115(lines 115 517) no Hoare annotation was computed. [2020-11-29 22:15:53,703 INFO L274 CegarLoopResult]: For program point L479(lines 479 481) no Hoare annotation was computed. [2020-11-29 22:15:53,703 INFO L274 CegarLoopResult]: For program point L446(lines 446 457) no Hoare annotation was computed. [2020-11-29 22:15:53,703 INFO L274 CegarLoopResult]: For program point L413(lines 413 427) no Hoare annotation was computed. [2020-11-29 22:15:53,704 INFO L274 CegarLoopResult]: For program point L413-1(lines 413 427) no Hoare annotation was computed. [2020-11-29 22:15:53,704 INFO L274 CegarLoopResult]: For program point L446-2(lines 446 457) no Hoare annotation was computed. [2020-11-29 22:15:53,704 INFO L274 CegarLoopResult]: For program point L314(lines 314 317) no Hoare annotation was computed. [2020-11-29 22:15:53,704 INFO L270 CegarLoopResult]: At program point L182(lines 178 496) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-11-29 22:15:53,704 INFO L274 CegarLoopResult]: For program point L546(lines 546 548) no Hoare annotation was computed. [2020-11-29 22:15:53,704 INFO L274 CegarLoopResult]: For program point L546-2(lines 546 548) no Hoare annotation was computed. [2020-11-29 22:15:53,704 INFO L274 CegarLoopResult]: For program point L349(lines 349 351) no Hoare annotation was computed. [2020-11-29 22:15:53,704 INFO L274 CegarLoopResult]: For program point L184(lines 184 494) no Hoare annotation was computed. [2020-11-29 22:15:53,705 INFO L274 CegarLoopResult]: For program point L151(lines 151 505) no Hoare annotation was computed. [2020-11-29 22:15:53,705 INFO L274 CegarLoopResult]: For program point L118(lines 118 516) no Hoare annotation was computed. [2020-11-29 22:15:53,705 INFO L274 CegarLoopResult]: For program point L383(lines 383 385) no Hoare annotation was computed. [2020-11-29 22:15:53,705 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 22:15:53,705 INFO L274 CegarLoopResult]: For program point L218(lines 218 221) no Hoare annotation was computed. [2020-11-29 22:15:53,705 INFO L270 CegarLoopResult]: At program point L152(lines 148 506) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-29 22:15:53,705 INFO L274 CegarLoopResult]: For program point L86(lines 86 92) no Hoare annotation was computed. [2020-11-29 22:15:53,705 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-11-29 22:15:53,706 INFO L274 CegarLoopResult]: For program point L252(lines 252 258) no Hoare annotation was computed. [2020-11-29 22:15:53,706 INFO L274 CegarLoopResult]: For program point L451(lines 451 454) no Hoare annotation was computed. [2020-11-29 22:15:53,706 INFO L274 CegarLoopResult]: For program point L187(lines 187 493) no Hoare annotation was computed. [2020-11-29 22:15:53,706 INFO L274 CegarLoopResult]: For program point L154(lines 154 504) no Hoare annotation was computed. [2020-11-29 22:15:53,706 INFO L274 CegarLoopResult]: For program point L121(lines 121 515) no Hoare annotation was computed. [2020-11-29 22:15:53,706 INFO L277 CegarLoopResult]: At program point L551(lines 12 553) the Hoare annotation is: true [2020-11-29 22:15:53,706 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_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2))) [2020-11-29 22:15:53,707 INFO L270 CegarLoopResult]: At program point L122(lines 118 516) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-29 22:15:53,707 INFO L274 CegarLoopResult]: For program point L89(lines 89 91) no Hoare annotation was computed. [2020-11-29 22:15:53,707 INFO L274 CegarLoopResult]: For program point L89-2(lines 86 92) no Hoare annotation was computed. [2020-11-29 22:15:53,707 INFO L274 CegarLoopResult]: For program point L288(lines 288 298) no Hoare annotation was computed. [2020-11-29 22:15:53,707 INFO L274 CegarLoopResult]: For program point L255(lines 255 257) no Hoare annotation was computed. [2020-11-29 22:15:53,710 INFO L274 CegarLoopResult]: For program point L288-2(lines 288 298) no Hoare annotation was computed. [2020-11-29 22:15:53,710 INFO L274 CegarLoopResult]: For program point L255-2(lines 203 486) no Hoare annotation was computed. [2020-11-29 22:15:53,711 INFO L270 CegarLoopResult]: At program point L487(lines 100 540) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse8 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (not .cse7)) (.cse10 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse9 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse11 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse12 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse2 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse5 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse9 .cse6 .cse10 .cse7) (and .cse8 .cse1 .cse2 .cse10) (and .cse0 .cse9 .cse3 .cse6 .cse7) (and .cse4 (= 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 .cse2 .cse11 .cse7) (and .cse12 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2) (and .cse11 .cse6) (and .cse12 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse4 .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse2 .cse5 .cse7)))) [2020-11-29 22:15:53,711 INFO L274 CegarLoopResult]: For program point L322(lines 322 324) no Hoare annotation was computed. [2020-11-29 22:15:53,711 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 22:15:53,712 INFO L274 CegarLoopResult]: For program point L190(lines 190 492) no Hoare annotation was computed. [2020-11-29 22:15:53,712 INFO L274 CegarLoopResult]: For program point L157(lines 157 503) no Hoare annotation was computed. [2020-11-29 22:15:53,712 INFO L274 CegarLoopResult]: For program point L124(lines 124 514) no Hoare annotation was computed. [2020-11-29 22:15:53,712 INFO L274 CegarLoopResult]: For program point L389(lines 389 393) no Hoare annotation was computed. [2020-11-29 22:15:53,712 INFO L270 CegarLoopResult]: At program point L323(lines 77 552) the Hoare annotation is: false [2020-11-29 22:15:53,714 INFO L274 CegarLoopResult]: For program point L389-2(lines 203 486) no Hoare annotation was computed. [2020-11-29 22:15:53,714 INFO L274 CegarLoopResult]: For program point L224(lines 224 235) no Hoare annotation was computed. [2020-11-29 22:15:53,714 INFO L274 CegarLoopResult]: For program point L224-2(lines 203 486) no Hoare annotation was computed. [2020-11-29 22:15:53,714 INFO L274 CegarLoopResult]: For program point L522(lines 522 538) no Hoare annotation was computed. [2020-11-29 22:15:53,714 INFO L274 CegarLoopResult]: For program point L523(lines 523 537) no Hoare annotation was computed. [2020-11-29 22:15:53,714 INFO L274 CegarLoopResult]: For program point L358(lines 358 360) no Hoare annotation was computed. [2020-11-29 22:15:53,715 INFO L274 CegarLoopResult]: For program point L325(lines 325 327) no Hoare annotation was computed. [2020-11-29 22:15:53,715 INFO L274 CegarLoopResult]: For program point L292(lines 292 294) no Hoare annotation was computed. [2020-11-29 22:15:53,715 INFO L274 CegarLoopResult]: For program point L226(lines 226 229) no Hoare annotation was computed. [2020-11-29 22:15:53,715 INFO L274 CegarLoopResult]: For program point L292-2(lines 290 298) no Hoare annotation was computed. [2020-11-29 22:15:53,715 INFO L274 CegarLoopResult]: For program point L193(lines 193 491) no Hoare annotation was computed. [2020-11-29 22:15:53,715 INFO L274 CegarLoopResult]: For program point L160(lines 160 502) no Hoare annotation was computed. [2020-11-29 22:15:53,715 INFO L274 CegarLoopResult]: For program point L127(lines 127 513) no Hoare annotation was computed. [2020-11-29 22:15:53,716 INFO L274 CegarLoopResult]: For program point L94(lines 94 98) no Hoare annotation was computed. [2020-11-29 22:15:53,716 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 22:15:53,716 INFO L274 CegarLoopResult]: For program point L524(lines 524 529) no Hoare annotation was computed. [2020-11-29 22:15:53,716 INFO L274 CegarLoopResult]: For program point L524-2(lines 523 537) no Hoare annotation was computed. [2020-11-29 22:15:53,716 INFO L270 CegarLoopResult]: At program point L194(lines 190 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (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 .cse2) (and .cse0 (not .cse2) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2020-11-29 22:15:53,717 INFO L270 CegarLoopResult]: At program point L128(lines 124 514) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-11-29 22:15:53,717 INFO L274 CegarLoopResult]: For program point L95(lines 95 97) no Hoare annotation was computed. [2020-11-29 22:15:53,717 INFO L274 CegarLoopResult]: For program point L526(lines 526 528) no Hoare annotation was computed. [2020-11-29 22:15:53,717 INFO L274 CegarLoopResult]: For program point L196(lines 196 490) no Hoare annotation was computed. [2020-11-29 22:15:53,717 INFO L274 CegarLoopResult]: For program point L163(lines 163 501) no Hoare annotation was computed. [2020-11-29 22:15:53,717 INFO L274 CegarLoopResult]: For program point L130(lines 130 512) no Hoare annotation was computed. [2020-11-29 22:15:53,717 INFO L274 CegarLoopResult]: For program point L362(lines 362 367) no Hoare annotation was computed. [2020-11-29 22:15:53,718 INFO L274 CegarLoopResult]: For program point L362-2(lines 362 367) no Hoare annotation was computed. [2020-11-29 22:15:53,718 INFO L274 CegarLoopResult]: For program point L230(lines 230 233) no Hoare annotation was computed. [2020-11-29 22:15:53,718 INFO L270 CegarLoopResult]: At program point L197(lines 196 490) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (not .cse1) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1))) [2020-11-29 22:15:53,719 INFO L270 CegarLoopResult]: At program point L164(lines 154 504) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-11-29 22:15:53,719 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 22:15:53,719 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 22:15:53,719 INFO L274 CegarLoopResult]: For program point L462-1(lines 462 464) no Hoare annotation was computed. [2020-11-29 22:15:53,719 INFO L274 CegarLoopResult]: For program point L264(lines 264 266) no Hoare annotation was computed. [2020-11-29 22:15:53,720 INFO L277 CegarLoopResult]: At program point L562(lines 554 564) the Hoare annotation is: true [2020-11-29 22:15:53,720 INFO L274 CegarLoopResult]: For program point L199(lines 199 489) no Hoare annotation was computed. [2020-11-29 22:15:53,720 INFO L274 CegarLoopResult]: For program point L166(lines 166 500) no Hoare annotation was computed. [2020-11-29 22:15:53,720 INFO L274 CegarLoopResult]: For program point L133(lines 133 511) no Hoare annotation was computed. [2020-11-29 22:15:53,720 INFO L274 CegarLoopResult]: For program point L100-1(lines 77 552) no Hoare annotation was computed. [2020-11-29 22:15:53,720 INFO L274 CegarLoopResult]: For program point L398(lines 398 401) no Hoare annotation was computed. [2020-11-29 22:15:53,721 INFO L277 CegarLoopResult]: At program point L200(lines 199 489) the Hoare annotation is: true [2020-11-29 22:15:53,721 INFO L270 CegarLoopResult]: At program point L134(lines 130 512) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1 .cse2))) [2020-11-29 22:15:53,721 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-29 22:15:53,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:15:53 BoogieIcfgContainer [2020-11-29 22:15:53,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:15:53,763 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:15:53,763 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:15:53,763 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:15:53,764 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:15:34" (3/4) ... [2020-11-29 22:15:53,767 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:15:53,796 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 22:15:53,797 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 22:15:53,798 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:15:53,799 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:15:53,942 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6686adb1-b1b6-432e-9cdb-15d773c17f93/bin/uautomizer/witness.graphml [2020-11-29 22:15:53,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:15:53,943 INFO L168 Benchmark]: Toolchain (without parser) took 21541.21 ms. Allocated memory was 113.2 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 81.0 MB in the beginning and 745.2 MB in the end (delta: -664.1 MB). Peak memory consumption was 519.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:53,943 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 79.7 MB. Free memory was 37.5 MB in the beginning and 37.5 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:15:53,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.88 ms. Allocated memory is still 113.2 MB. Free memory was 80.7 MB in the beginning and 84.9 MB in the end (delta: -4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:53,944 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.88 ms. Allocated memory is still 113.2 MB. Free memory was 84.9 MB in the beginning and 82.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:53,945 INFO L168 Benchmark]: Boogie Preprocessor took 44.01 ms. Allocated memory is still 113.2 MB. Free memory was 82.4 MB in the beginning and 80.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:53,945 INFO L168 Benchmark]: RCFGBuilder took 1174.11 ms. Allocated memory is still 113.2 MB. Free memory was 80.3 MB in the beginning and 87.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 53.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:53,945 INFO L168 Benchmark]: TraceAbstraction took 19559.95 ms. Allocated memory was 113.2 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 87.0 MB in the beginning and 754.6 MB in the end (delta: -667.6 MB). Peak memory consumption was 515.0 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:53,946 INFO L168 Benchmark]: Witness Printer took 179.44 ms. Allocated memory is still 1.3 GB. Free memory was 754.6 MB in the beginning and 745.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:15:53,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 79.7 MB. Free memory was 37.5 MB in the beginning and 37.5 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 492.88 ms. Allocated memory is still 113.2 MB. Free memory was 80.7 MB in the beginning and 84.9 MB in the end (delta: -4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.88 ms. Allocated memory is still 113.2 MB. Free memory was 84.9 MB in the beginning and 82.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.01 ms. Allocated memory is still 113.2 MB. Free memory was 82.4 MB in the beginning and 80.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1174.11 ms. Allocated memory is still 113.2 MB. Free memory was 80.3 MB in the beginning and 87.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 53.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19559.95 ms. Allocated memory was 113.2 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 87.0 MB in the beginning and 754.6 MB in the end (delta: -667.6 MB). Peak memory consumption was 515.0 MB. Max. memory is 16.1 GB. * Witness Printer took 179.44 ms. Allocated memory is still 1.3 GB. Free memory was 754.6 MB in the beginning and 745.2 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: (blastFlag == 0 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - 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: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: ((((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || (((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0) - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((s__state <= 4560 && 4512 <= s__state) && blastFlag == 2)) || (((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4448) && 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: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: (s__state <= 4432 && 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 && 4512 <= 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 <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || (((blastFlag <= 4 && 4400 == s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((((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 <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state)) || ((((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)) || ((blastFlag == 2 && s__state <= 3) && s__hit == 0)) || ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2)) || (s__state <= 3 && s__s3__tmp__next_state___0 <= 4560)) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0)) || (blastFlag == 0 && s__state == 4368)) || ((blastFlag == 2 && 4400 == s__state) && s__hit == 0) - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: ((((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 <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state) - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4464) && s__hit == 0 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4480) && s__hit == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.3s, OverallIterations: 27, TraceHistogramMax: 22, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4907 SDtfs, 2135 SDslu, 2647 SDs, 0 SdLazy, 2485 SolverSat, 611 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2468 GetRequests, 2431 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5789occurred in iteration=23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 27 MinimizatonAttempts, 4017 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 155 NumberOfFragments, 425 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9035 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 22 FomulaSimplificationsInter, 2018 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 8796 NumberOfCodeBlocks, 8796 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 8764 ConstructedInterpolants, 0 QuantifiedInterpolants, 4603118 SizeOfPredicates, 7 NumberOfNonLiveVariables, 4093 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 32 InterpolantComputations, 24 PerfectInterpolantSequences, 39205/39291 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...