./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/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 0237d7665f4c4183d0858d7577c1caaad788a36b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:26:55,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:26:55,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:26:55,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:26:55,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:26:55,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:26:55,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:26:55,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:26:55,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:26:55,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:26:55,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:26:55,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:26:55,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:26:55,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:26:56,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:26:56,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:26:56,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:26:56,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:26:56,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:26:56,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:26:56,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:26:56,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:26:56,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:26:56,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:26:56,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:26:56,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:26:56,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:26:56,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:26:56,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:26:56,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:26:56,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:26:56,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:26:56,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:26:56,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:26:56,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:26:56,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:26:56,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:26:56,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:26:56,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:26:56,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:26:56,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:26:56,077 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:26:56,135 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:26:56,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:26:56,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:26:56,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:26:56,140 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:26:56,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:26:56,141 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:26:56,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:26:56,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:26:56,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:26:56,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:26:56,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:26:56,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:26:56,144 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:26:56,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:26:56,145 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:26:56,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:26:56,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:26:56,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:26:56,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:26:56,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:26:56,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:26:56,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:26:56,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:26:56,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:26:56,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:26:56,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:26:56,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:26:56,149 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:26:56,149 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_f39c215b-957d-4481-a218-3b5dfb331a9c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0237d7665f4c4183d0858d7577c1caaad788a36b [2020-11-30 01:26:56,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:26:56,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:26:56,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:26:56,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:26:56,577 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:26:56,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2020-11-30 01:26:56,674 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer/data/fd290e5cb/15a3f36d6cf1490492b5f59316737072/FLAGbee0b3d06 [2020-11-30 01:26:57,494 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:26:57,495 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2020-11-30 01:26:57,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer/data/fd290e5cb/15a3f36d6cf1490492b5f59316737072/FLAGbee0b3d06 [2020-11-30 01:26:57,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer/data/fd290e5cb/15a3f36d6cf1490492b5f59316737072 [2020-11-30 01:26:57,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:26:57,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:26:57,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:26:57,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:26:57,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:26:57,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d7a5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57, skipping insertion in model container [2020-11-30 01:26:57,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:26:57,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:26:58,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:26:58,224 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:26:58,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:26:58,315 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:26:58,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58 WrapperNode [2020-11-30 01:26:58,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:26:58,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:26:58,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:26:58,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:26:58,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:26:58,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:26:58,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:26:58,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:26:58,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:26:58,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:26:58,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:26:58,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:26:58,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/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 [2020-11-30 01:26:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:26:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:26:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:26:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:26:58,937 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-30 01:27:00,113 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-11-30 01:27:00,113 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-11-30 01:27:00,136 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:27:00,138 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 01:27:00,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:00 BoogieIcfgContainer [2020-11-30 01:27:00,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:27:00,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:27:00,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:27:00,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:27:00,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:26:57" (1/3) ... [2020-11-30 01:27:00,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97a0a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:27:00, skipping insertion in model container [2020-11-30 01:27:00,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (2/3) ... [2020-11-30 01:27:00,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97a0a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:27:00, skipping insertion in model container [2020-11-30 01:27:00,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:00" (3/3) ... [2020-11-30 01:27:00,162 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-1.c [2020-11-30 01:27:00,178 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:27:00,187 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:27:00,205 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:27:00,241 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:27:00,241 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:27:00,241 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:27:00,242 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:27:00,242 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:27:00,242 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:27:00,242 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:27:00,242 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:27:00,288 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2020-11-30 01:27:00,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:27:00,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:00,299 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] [2020-11-30 01:27:00,300 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:00,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:00,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1457700990, now seen corresponding path program 1 times [2020-11-30 01:27:00,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:00,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807739534] [2020-11-30 01:27:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:00,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807739534] [2020-11-30 01:27:00,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:00,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:00,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943982274] [2020-11-30 01:27:00,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:00,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:00,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:00,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:00,788 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 3 states. [2020-11-30 01:27:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:01,218 INFO L93 Difference]: Finished difference Result 251 states and 426 transitions. [2020-11-30 01:27:01,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:01,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-30 01:27:01,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:01,255 INFO L225 Difference]: With dead ends: 251 [2020-11-30 01:27:01,260 INFO L226 Difference]: Without dead ends: 114 [2020-11-30 01:27:01,270 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 [2020-11-30 01:27:01,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-30 01:27:01,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-11-30 01:27:01,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-30 01:27:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 171 transitions. [2020-11-30 01:27:01,363 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 171 transitions. Word has length 24 [2020-11-30 01:27:01,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:01,365 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 171 transitions. [2020-11-30 01:27:01,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:01,365 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 171 transitions. [2020-11-30 01:27:01,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 01:27:01,370 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:01,371 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] [2020-11-30 01:27:01,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:27:01,373 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:01,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:01,378 INFO L82 PathProgramCache]: Analyzing trace with hash 561711387, now seen corresponding path program 1 times [2020-11-30 01:27:01,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:01,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561827091] [2020-11-30 01:27:01,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:27:01,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561827091] [2020-11-30 01:27:01,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:01,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:01,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217448712] [2020-11-30 01:27:01,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:01,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:01,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:01,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:01,526 INFO L87 Difference]: Start difference. First operand 114 states and 171 transitions. Second operand 3 states. [2020-11-30 01:27:01,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:01,838 INFO L93 Difference]: Finished difference Result 236 states and 358 transitions. [2020-11-30 01:27:01,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:01,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-11-30 01:27:01,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:01,843 INFO L225 Difference]: With dead ends: 236 [2020-11-30 01:27:01,843 INFO L226 Difference]: Without dead ends: 132 [2020-11-30 01:27:01,845 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 [2020-11-30 01:27:01,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-11-30 01:27:01,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2020-11-30 01:27:01,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-11-30 01:27:01,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 191 transitions. [2020-11-30 01:27:01,871 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 191 transitions. Word has length 37 [2020-11-30 01:27:01,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:01,872 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 191 transitions. [2020-11-30 01:27:01,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:01,873 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 191 transitions. [2020-11-30 01:27:01,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-30 01:27:01,880 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:01,881 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] [2020-11-30 01:27:01,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:27:01,882 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:01,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:01,883 INFO L82 PathProgramCache]: Analyzing trace with hash 356447844, now seen corresponding path program 1 times [2020-11-30 01:27:01,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:01,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285100872] [2020-11-30 01:27:01,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:02,060 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 01:27:02,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285100872] [2020-11-30 01:27:02,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:02,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:02,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349822981] [2020-11-30 01:27:02,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:02,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:02,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:02,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:02,072 INFO L87 Difference]: Start difference. First operand 129 states and 191 transitions. Second operand 3 states. [2020-11-30 01:27:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:02,370 INFO L93 Difference]: Finished difference Result 269 states and 404 transitions. [2020-11-30 01:27:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:02,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-30 01:27:02,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:02,373 INFO L225 Difference]: With dead ends: 269 [2020-11-30 01:27:02,373 INFO L226 Difference]: Without dead ends: 150 [2020-11-30 01:27:02,375 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 [2020-11-30 01:27:02,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-11-30 01:27:02,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2020-11-30 01:27:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-30 01:27:02,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 213 transitions. [2020-11-30 01:27:02,395 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 213 transitions. Word has length 51 [2020-11-30 01:27:02,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:02,395 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 213 transitions. [2020-11-30 01:27:02,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:02,396 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 213 transitions. [2020-11-30 01:27:02,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-30 01:27:02,398 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:02,398 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] [2020-11-30 01:27:02,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:27:02,399 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:02,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:02,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1231511209, now seen corresponding path program 1 times [2020-11-30 01:27:02,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:02,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968208000] [2020-11-30 01:27:02,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-30 01:27:02,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968208000] [2020-11-30 01:27:02,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:02,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:02,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801527069] [2020-11-30 01:27:02,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:02,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:02,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:02,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:02,513 INFO L87 Difference]: Start difference. First operand 146 states and 213 transitions. Second operand 3 states. [2020-11-30 01:27:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:02,868 INFO L93 Difference]: Finished difference Result 333 states and 501 transitions. [2020-11-30 01:27:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:02,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-30 01:27:02,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:02,872 INFO L225 Difference]: With dead ends: 333 [2020-11-30 01:27:02,872 INFO L226 Difference]: Without dead ends: 196 [2020-11-30 01:27:02,874 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 [2020-11-30 01:27:02,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-11-30 01:27:02,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 187. [2020-11-30 01:27:02,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-11-30 01:27:02,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 263 transitions. [2020-11-30 01:27:02,891 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 263 transitions. Word has length 68 [2020-11-30 01:27:02,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:02,892 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 263 transitions. [2020-11-30 01:27:02,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:02,893 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 263 transitions. [2020-11-30 01:27:02,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-30 01:27:02,895 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:02,895 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] [2020-11-30 01:27:02,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:27:02,896 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:02,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:02,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1258017753, now seen corresponding path program 1 times [2020-11-30 01:27:02,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:02,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642554581] [2020-11-30 01:27:02,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-30 01:27:03,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642554581] [2020-11-30 01:27:03,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:03,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:03,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737047849] [2020-11-30 01:27:03,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:03,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:03,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:03,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:03,010 INFO L87 Difference]: Start difference. First operand 187 states and 263 transitions. Second operand 3 states. [2020-11-30 01:27:03,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:03,288 INFO L93 Difference]: Finished difference Result 387 states and 552 transitions. [2020-11-30 01:27:03,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:03,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-11-30 01:27:03,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:03,292 INFO L225 Difference]: With dead ends: 387 [2020-11-30 01:27:03,292 INFO L226 Difference]: Without dead ends: 210 [2020-11-30 01:27:03,293 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 [2020-11-30 01:27:03,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-11-30 01:27:03,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 206. [2020-11-30 01:27:03,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-30 01:27:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 287 transitions. [2020-11-30 01:27:03,320 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 287 transitions. Word has length 68 [2020-11-30 01:27:03,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:03,321 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 287 transitions. [2020-11-30 01:27:03,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:03,321 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 287 transitions. [2020-11-30 01:27:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-11-30 01:27:03,324 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:03,325 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] [2020-11-30 01:27:03,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:27:03,326 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:03,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:03,327 INFO L82 PathProgramCache]: Analyzing trace with hash -901961809, now seen corresponding path program 1 times [2020-11-30 01:27:03,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:03,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264608384] [2020-11-30 01:27:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:03,460 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-11-30 01:27:03,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264608384] [2020-11-30 01:27:03,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:03,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:03,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884073347] [2020-11-30 01:27:03,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:03,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:03,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:03,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:03,467 INFO L87 Difference]: Start difference. First operand 206 states and 287 transitions. Second operand 3 states. [2020-11-30 01:27:03,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:03,714 INFO L93 Difference]: Finished difference Result 426 states and 602 transitions. [2020-11-30 01:27:03,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:03,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-11-30 01:27:03,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:03,718 INFO L225 Difference]: With dead ends: 426 [2020-11-30 01:27:03,718 INFO L226 Difference]: Without dead ends: 230 [2020-11-30 01:27:03,719 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 [2020-11-30 01:27:03,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-11-30 01:27:03,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 227. [2020-11-30 01:27:03,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-11-30 01:27:03,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 313 transitions. [2020-11-30 01:27:03,731 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 313 transitions. Word has length 84 [2020-11-30 01:27:03,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:03,732 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 313 transitions. [2020-11-30 01:27:03,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:03,733 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 313 transitions. [2020-11-30 01:27:03,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-30 01:27:03,743 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:03,744 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] [2020-11-30 01:27:03,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:27:03,745 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:03,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:03,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1810291289, now seen corresponding path program 1 times [2020-11-30 01:27:03,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:03,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128481176] [2020-11-30 01:27:03,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:03,846 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-30 01:27:03,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128481176] [2020-11-30 01:27:03,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:03,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:03,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438110062] [2020-11-30 01:27:03,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:03,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:03,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:03,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:03,850 INFO L87 Difference]: Start difference. First operand 227 states and 313 transitions. Second operand 3 states. [2020-11-30 01:27:03,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:03,947 INFO L93 Difference]: Finished difference Result 658 states and 909 transitions. [2020-11-30 01:27:03,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:03,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-11-30 01:27:03,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:03,952 INFO L225 Difference]: With dead ends: 658 [2020-11-30 01:27:03,952 INFO L226 Difference]: Without dead ends: 441 [2020-11-30 01:27:03,953 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 [2020-11-30 01:27:03,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-11-30 01:27:03,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2020-11-30 01:27:03,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-11-30 01:27:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 604 transitions. [2020-11-30 01:27:03,974 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 604 transitions. Word has length 104 [2020-11-30 01:27:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:03,975 INFO L481 AbstractCegarLoop]: Abstraction has 441 states and 604 transitions. [2020-11-30 01:27:03,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:03,976 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 604 transitions. [2020-11-30 01:27:03,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-30 01:27:03,978 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:03,978 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] [2020-11-30 01:27:03,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:27:03,979 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:03,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:03,980 INFO L82 PathProgramCache]: Analyzing trace with hash 151283369, now seen corresponding path program 1 times [2020-11-30 01:27:03,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:03,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499032750] [2020-11-30 01:27:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:04,048 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-11-30 01:27:04,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499032750] [2020-11-30 01:27:04,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:04,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:04,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002734620] [2020-11-30 01:27:04,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:04,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:04,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:04,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:04,052 INFO L87 Difference]: Start difference. First operand 441 states and 604 transitions. Second operand 3 states. [2020-11-30 01:27:04,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:04,099 INFO L93 Difference]: Finished difference Result 893 states and 1222 transitions. [2020-11-30 01:27:04,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:04,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-11-30 01:27:04,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:04,106 INFO L225 Difference]: With dead ends: 893 [2020-11-30 01:27:04,106 INFO L226 Difference]: Without dead ends: 462 [2020-11-30 01:27:04,108 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 [2020-11-30 01:27:04,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-11-30 01:27:04,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2020-11-30 01:27:04,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-11-30 01:27:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 631 transitions. [2020-11-30 01:27:04,132 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 631 transitions. Word has length 104 [2020-11-30 01:27:04,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:04,136 INFO L481 AbstractCegarLoop]: Abstraction has 462 states and 631 transitions. [2020-11-30 01:27:04,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:04,136 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 631 transitions. [2020-11-30 01:27:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-30 01:27:04,138 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:04,138 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] [2020-11-30 01:27:04,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:27:04,139 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:04,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:04,140 INFO L82 PathProgramCache]: Analyzing trace with hash 178348971, now seen corresponding path program 1 times [2020-11-30 01:27:04,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:04,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855791165] [2020-11-30 01:27:04,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:04,253 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-11-30 01:27:04,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855791165] [2020-11-30 01:27:04,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:04,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:04,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311313961] [2020-11-30 01:27:04,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:04,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:04,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:04,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:04,270 INFO L87 Difference]: Start difference. First operand 462 states and 631 transitions. Second operand 3 states. [2020-11-30 01:27:04,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:04,313 INFO L93 Difference]: Finished difference Result 941 states and 1283 transitions. [2020-11-30 01:27:04,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:04,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-11-30 01:27:04,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:04,318 INFO L225 Difference]: With dead ends: 941 [2020-11-30 01:27:04,319 INFO L226 Difference]: Without dead ends: 489 [2020-11-30 01:27:04,320 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 [2020-11-30 01:27:04,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-11-30 01:27:04,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2020-11-30 01:27:04,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-11-30 01:27:04,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 665 transitions. [2020-11-30 01:27:04,341 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 665 transitions. Word has length 104 [2020-11-30 01:27:04,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:04,342 INFO L481 AbstractCegarLoop]: Abstraction has 489 states and 665 transitions. [2020-11-30 01:27:04,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:04,342 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 665 transitions. [2020-11-30 01:27:04,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-30 01:27:04,344 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:04,345 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] [2020-11-30 01:27:04,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:27:04,346 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:04,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:04,348 INFO L82 PathProgramCache]: Analyzing trace with hash -492994255, now seen corresponding path program 1 times [2020-11-30 01:27:04,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:04,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436276853] [2020-11-30 01:27:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:04,463 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-30 01:27:04,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436276853] [2020-11-30 01:27:04,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:04,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:04,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644773595] [2020-11-30 01:27:04,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:04,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:04,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:04,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:04,475 INFO L87 Difference]: Start difference. First operand 489 states and 665 transitions. Second operand 3 states. [2020-11-30 01:27:04,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:04,535 INFO L93 Difference]: Finished difference Result 706 states and 964 transitions. [2020-11-30 01:27:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:04,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-30 01:27:04,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:04,543 INFO L225 Difference]: With dead ends: 706 [2020-11-30 01:27:04,543 INFO L226 Difference]: Without dead ends: 704 [2020-11-30 01:27:04,544 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 [2020-11-30 01:27:04,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-11-30 01:27:04,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 704. [2020-11-30 01:27:04,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2020-11-30 01:27:04,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 962 transitions. [2020-11-30 01:27:04,573 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 962 transitions. Word has length 106 [2020-11-30 01:27:04,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:04,573 INFO L481 AbstractCegarLoop]: Abstraction has 704 states and 962 transitions. [2020-11-30 01:27:04,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:04,574 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 962 transitions. [2020-11-30 01:27:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-11-30 01:27:04,581 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:04,581 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1] [2020-11-30 01:27:04,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:27:04,584 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:04,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1913560025, now seen corresponding path program 1 times [2020-11-30 01:27:04,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:04,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139723124] [2020-11-30 01:27:04,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:04,697 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-30 01:27:04,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139723124] [2020-11-30 01:27:04,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:04,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:04,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958766966] [2020-11-30 01:27:04,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:04,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:04,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:04,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:04,702 INFO L87 Difference]: Start difference. First operand 704 states and 962 transitions. Second operand 3 states. [2020-11-30 01:27:04,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:04,964 INFO L93 Difference]: Finished difference Result 1451 states and 2013 transitions. [2020-11-30 01:27:04,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:04,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-11-30 01:27:04,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:04,970 INFO L225 Difference]: With dead ends: 1451 [2020-11-30 01:27:04,971 INFO L226 Difference]: Without dead ends: 784 [2020-11-30 01:27:04,973 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 [2020-11-30 01:27:04,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-11-30 01:27:04,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 773. [2020-11-30 01:27:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 773 states. [2020-11-30 01:27:05,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1046 transitions. [2020-11-30 01:27:05,000 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1046 transitions. Word has length 131 [2020-11-30 01:27:05,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:05,002 INFO L481 AbstractCegarLoop]: Abstraction has 773 states and 1046 transitions. [2020-11-30 01:27:05,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:05,002 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1046 transitions. [2020-11-30 01:27:05,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-11-30 01:27:05,005 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:05,006 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1] [2020-11-30 01:27:05,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 01:27:05,006 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:05,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:05,008 INFO L82 PathProgramCache]: Analyzing trace with hash 296450083, now seen corresponding path program 1 times [2020-11-30 01:27:05,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:05,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262849542] [2020-11-30 01:27:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2020-11-30 01:27:05,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262849542] [2020-11-30 01:27:05,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:05,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:05,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849359203] [2020-11-30 01:27:05,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:05,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:05,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:05,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:05,122 INFO L87 Difference]: Start difference. First operand 773 states and 1046 transitions. Second operand 3 states. [2020-11-30 01:27:05,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:05,462 INFO L93 Difference]: Finished difference Result 1662 states and 2311 transitions. [2020-11-30 01:27:05,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:05,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-11-30 01:27:05,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:05,471 INFO L225 Difference]: With dead ends: 1662 [2020-11-30 01:27:05,471 INFO L226 Difference]: Without dead ends: 923 [2020-11-30 01:27:05,473 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 [2020-11-30 01:27:05,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-11-30 01:27:05,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 890. [2020-11-30 01:27:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2020-11-30 01:27:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1223 transitions. [2020-11-30 01:27:05,508 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1223 transitions. Word has length 152 [2020-11-30 01:27:05,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:05,509 INFO L481 AbstractCegarLoop]: Abstraction has 890 states and 1223 transitions. [2020-11-30 01:27:05,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:05,510 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1223 transitions. [2020-11-30 01:27:05,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-11-30 01:27:05,514 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:05,515 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:05,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 01:27:05,515 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:05,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:05,516 INFO L82 PathProgramCache]: Analyzing trace with hash 2080513012, now seen corresponding path program 1 times [2020-11-30 01:27:05,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:05,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576594185] [2020-11-30 01:27:05,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2020-11-30 01:27:05,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576594185] [2020-11-30 01:27:05,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:05,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:05,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326580187] [2020-11-30 01:27:05,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:05,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:05,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:05,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:05,627 INFO L87 Difference]: Start difference. First operand 890 states and 1223 transitions. Second operand 3 states. [2020-11-30 01:27:05,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:05,944 INFO L93 Difference]: Finished difference Result 1833 states and 2515 transitions. [2020-11-30 01:27:05,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:05,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-11-30 01:27:05,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:05,954 INFO L225 Difference]: With dead ends: 1833 [2020-11-30 01:27:05,954 INFO L226 Difference]: Without dead ends: 980 [2020-11-30 01:27:05,957 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 [2020-11-30 01:27:05,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2020-11-30 01:27:05,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 974. [2020-11-30 01:27:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 974 states. [2020-11-30 01:27:05,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1322 transitions. [2020-11-30 01:27:05,997 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1322 transitions. Word has length 188 [2020-11-30 01:27:05,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:05,998 INFO L481 AbstractCegarLoop]: Abstraction has 974 states and 1322 transitions. [2020-11-30 01:27:05,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:05,999 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1322 transitions. [2020-11-30 01:27:06,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-11-30 01:27:06,004 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:06,004 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:06,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 01:27:06,005 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:06,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:06,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1653754506, now seen corresponding path program 1 times [2020-11-30 01:27:06,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:06,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351806437] [2020-11-30 01:27:06,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:06,129 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2020-11-30 01:27:06,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351806437] [2020-11-30 01:27:06,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:06,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:06,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629787277] [2020-11-30 01:27:06,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:06,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:06,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:06,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:06,132 INFO L87 Difference]: Start difference. First operand 974 states and 1322 transitions. Second operand 3 states. [2020-11-30 01:27:06,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:06,429 INFO L93 Difference]: Finished difference Result 2013 states and 2740 transitions. [2020-11-30 01:27:06,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:06,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-11-30 01:27:06,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:06,439 INFO L225 Difference]: With dead ends: 2013 [2020-11-30 01:27:06,439 INFO L226 Difference]: Without dead ends: 1076 [2020-11-30 01:27:06,442 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 [2020-11-30 01:27:06,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2020-11-30 01:27:06,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1067. [2020-11-30 01:27:06,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1067 states. [2020-11-30 01:27:06,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1430 transitions. [2020-11-30 01:27:06,482 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1430 transitions. Word has length 188 [2020-11-30 01:27:06,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:06,482 INFO L481 AbstractCegarLoop]: Abstraction has 1067 states and 1430 transitions. [2020-11-30 01:27:06,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:06,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1430 transitions. [2020-11-30 01:27:06,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-30 01:27:06,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:06,489 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:06,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-30 01:27:06,489 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:06,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:06,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1229348372, now seen corresponding path program 1 times [2020-11-30 01:27:06,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:06,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121588055] [2020-11-30 01:27:06,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:06,616 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2020-11-30 01:27:06,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121588055] [2020-11-30 01:27:06,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:06,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:06,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59837098] [2020-11-30 01:27:06,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:06,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:06,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:06,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:06,619 INFO L87 Difference]: Start difference. First operand 1067 states and 1430 transitions. Second operand 3 states. [2020-11-30 01:27:06,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:06,704 INFO L93 Difference]: Finished difference Result 3124 states and 4191 transitions. [2020-11-30 01:27:06,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:06,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-11-30 01:27:06,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:06,721 INFO L225 Difference]: With dead ends: 3124 [2020-11-30 01:27:06,721 INFO L226 Difference]: Without dead ends: 2094 [2020-11-30 01:27:06,726 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 [2020-11-30 01:27:06,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2020-11-30 01:27:06,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 2092. [2020-11-30 01:27:06,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-11-30 01:27:06,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2805 transitions. [2020-11-30 01:27:06,810 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2805 transitions. Word has length 218 [2020-11-30 01:27:06,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:06,810 INFO L481 AbstractCegarLoop]: Abstraction has 2092 states and 2805 transitions. [2020-11-30 01:27:06,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:06,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2805 transitions. [2020-11-30 01:27:06,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-30 01:27:06,818 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:06,819 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:06,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-30 01:27:06,820 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:06,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:06,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1790048150, now seen corresponding path program 1 times [2020-11-30 01:27:06,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:06,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219330548] [2020-11-30 01:27:06,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:06,965 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-11-30 01:27:06,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219330548] [2020-11-30 01:27:06,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:06,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:06,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058531921] [2020-11-30 01:27:06,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:06,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:06,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:06,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:06,972 INFO L87 Difference]: Start difference. First operand 2092 states and 2805 transitions. Second operand 3 states. [2020-11-30 01:27:07,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:07,299 INFO L93 Difference]: Finished difference Result 4372 states and 5889 transitions. [2020-11-30 01:27:07,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:07,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-11-30 01:27:07,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:07,316 INFO L225 Difference]: With dead ends: 4372 [2020-11-30 01:27:07,317 INFO L226 Difference]: Without dead ends: 2317 [2020-11-30 01:27:07,321 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 [2020-11-30 01:27:07,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2020-11-30 01:27:07,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2305. [2020-11-30 01:27:07,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-11-30 01:27:07,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3048 transitions. [2020-11-30 01:27:07,410 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3048 transitions. Word has length 218 [2020-11-30 01:27:07,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:07,411 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 3048 transitions. [2020-11-30 01:27:07,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3048 transitions. [2020-11-30 01:27:07,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-11-30 01:27:07,420 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:07,420 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:07,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 01:27:07,421 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:07,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:07,422 INFO L82 PathProgramCache]: Analyzing trace with hash 678419774, now seen corresponding path program 1 times [2020-11-30 01:27:07,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:07,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379377017] [2020-11-30 01:27:07,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:07,599 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2020-11-30 01:27:07,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379377017] [2020-11-30 01:27:07,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:07,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:07,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232961185] [2020-11-30 01:27:07,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:07,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:07,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:07,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:07,604 INFO L87 Difference]: Start difference. First operand 2305 states and 3048 transitions. Second operand 3 states. [2020-11-30 01:27:07,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:07,941 INFO L93 Difference]: Finished difference Result 4684 states and 6204 transitions. [2020-11-30 01:27:07,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:07,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2020-11-30 01:27:07,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:07,959 INFO L225 Difference]: With dead ends: 4684 [2020-11-30 01:27:07,959 INFO L226 Difference]: Without dead ends: 2416 [2020-11-30 01:27:07,964 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 [2020-11-30 01:27:07,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2020-11-30 01:27:08,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2404. [2020-11-30 01:27:08,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2404 states. [2020-11-30 01:27:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 3162 transitions. [2020-11-30 01:27:08,058 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 3162 transitions. Word has length 242 [2020-11-30 01:27:08,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:08,059 INFO L481 AbstractCegarLoop]: Abstraction has 2404 states and 3162 transitions. [2020-11-30 01:27:08,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 3162 transitions. [2020-11-30 01:27:08,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-11-30 01:27:08,068 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:08,069 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:08,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 01:27:08,069 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:08,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:08,070 INFO L82 PathProgramCache]: Analyzing trace with hash -101941725, now seen corresponding path program 1 times [2020-11-30 01:27:08,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:08,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649553411] [2020-11-30 01:27:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:08,243 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-30 01:27:08,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649553411] [2020-11-30 01:27:08,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:08,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:08,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441569903] [2020-11-30 01:27:08,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:08,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:08,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:08,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:08,246 INFO L87 Difference]: Start difference. First operand 2404 states and 3162 transitions. Second operand 3 states. [2020-11-30 01:27:08,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:08,662 INFO L93 Difference]: Finished difference Result 5071 states and 6804 transitions. [2020-11-30 01:27:08,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:08,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2020-11-30 01:27:08,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:08,682 INFO L225 Difference]: With dead ends: 5071 [2020-11-30 01:27:08,682 INFO L226 Difference]: Without dead ends: 2704 [2020-11-30 01:27:08,687 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 [2020-11-30 01:27:08,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2020-11-30 01:27:08,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2644. [2020-11-30 01:27:08,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2644 states. [2020-11-30 01:27:08,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3444 transitions. [2020-11-30 01:27:08,794 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3444 transitions. Word has length 253 [2020-11-30 01:27:08,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:08,795 INFO L481 AbstractCegarLoop]: Abstraction has 2644 states and 3444 transitions. [2020-11-30 01:27:08,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:08,796 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3444 transitions. [2020-11-30 01:27:08,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-11-30 01:27:08,807 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:08,807 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:08,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-30 01:27:08,808 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:08,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:08,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1277617296, now seen corresponding path program 1 times [2020-11-30 01:27:08,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:08,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329522192] [2020-11-30 01:27:08,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-30 01:27:09,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329522192] [2020-11-30 01:27:09,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519618181] [2020-11-30 01:27:09,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/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 [2020-11-30 01:27:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:09,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:27:09,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:27:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-11-30 01:27:09,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:27:09,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-30 01:27:09,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839923191] [2020-11-30 01:27:09,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:27:09,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:09,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:27:09,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:27:09,447 INFO L87 Difference]: Start difference. First operand 2644 states and 3444 transitions. Second operand 4 states. [2020-11-30 01:27:10,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:10,530 INFO L93 Difference]: Finished difference Result 8230 states and 10854 transitions. [2020-11-30 01:27:10,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:27:10,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 292 [2020-11-30 01:27:10,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:10,573 INFO L225 Difference]: With dead ends: 8230 [2020-11-30 01:27:10,574 INFO L226 Difference]: Without dead ends: 5617 [2020-11-30 01:27:10,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:27:10,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5617 states. [2020-11-30 01:27:10,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5617 to 5225. [2020-11-30 01:27:10,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5225 states. [2020-11-30 01:27:10,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 6803 transitions. [2020-11-30 01:27:10,809 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 6803 transitions. Word has length 292 [2020-11-30 01:27:10,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:10,811 INFO L481 AbstractCegarLoop]: Abstraction has 5225 states and 6803 transitions. [2020-11-30 01:27:10,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:27:10,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 6803 transitions. [2020-11-30 01:27:10,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-11-30 01:27:10,829 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:10,829 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:11,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:27:11,045 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:11,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:11,045 INFO L82 PathProgramCache]: Analyzing trace with hash -909348798, now seen corresponding path program 1 times [2020-11-30 01:27:11,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:11,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269276080] [2020-11-30 01:27:11,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2020-11-30 01:27:11,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269276080] [2020-11-30 01:27:11,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:11,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:11,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008649110] [2020-11-30 01:27:11,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:11,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:11,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:11,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:11,327 INFO L87 Difference]: Start difference. First operand 5225 states and 6803 transitions. Second operand 3 states. [2020-11-30 01:27:11,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:11,480 INFO L93 Difference]: Finished difference Result 12630 states and 16480 transitions. [2020-11-30 01:27:11,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:11,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 293 [2020-11-30 01:27:11,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:11,533 INFO L225 Difference]: With dead ends: 12630 [2020-11-30 01:27:11,534 INFO L226 Difference]: Without dead ends: 7442 [2020-11-30 01:27:11,545 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 [2020-11-30 01:27:11,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7442 states. [2020-11-30 01:27:11,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7442 to 7440. [2020-11-30 01:27:11,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7440 states. [2020-11-30 01:27:11,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7440 states to 7440 states and 9694 transitions. [2020-11-30 01:27:11,782 INFO L78 Accepts]: Start accepts. Automaton has 7440 states and 9694 transitions. Word has length 293 [2020-11-30 01:27:11,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:11,783 INFO L481 AbstractCegarLoop]: Abstraction has 7440 states and 9694 transitions. [2020-11-30 01:27:11,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:11,783 INFO L276 IsEmpty]: Start isEmpty. Operand 7440 states and 9694 transitions. [2020-11-30 01:27:11,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-11-30 01:27:11,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:11,801 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:11,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-30 01:27:11,802 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:11,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:11,803 INFO L82 PathProgramCache]: Analyzing trace with hash 967762485, now seen corresponding path program 1 times [2020-11-30 01:27:11,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:11,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159075790] [2020-11-30 01:27:11,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:12,001 INFO L134 CoverageAnalysis]: Checked inductivity of 917 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2020-11-30 01:27:12,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159075790] [2020-11-30 01:27:12,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:12,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:12,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635757203] [2020-11-30 01:27:12,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:12,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:12,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:12,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:12,004 INFO L87 Difference]: Start difference. First operand 7440 states and 9694 transitions. Second operand 3 states. [2020-11-30 01:27:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:12,402 INFO L93 Difference]: Finished difference Result 14837 states and 19310 transitions. [2020-11-30 01:27:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:12,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 294 [2020-11-30 01:27:12,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:12,443 INFO L225 Difference]: With dead ends: 14837 [2020-11-30 01:27:12,444 INFO L226 Difference]: Without dead ends: 7434 [2020-11-30 01:27:12,457 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 [2020-11-30 01:27:12,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7434 states. [2020-11-30 01:27:12,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7434 to 6417. [2020-11-30 01:27:12,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6417 states. [2020-11-30 01:27:12,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6417 states to 6417 states and 8241 transitions. [2020-11-30 01:27:12,684 INFO L78 Accepts]: Start accepts. Automaton has 6417 states and 8241 transitions. Word has length 294 [2020-11-30 01:27:12,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:12,685 INFO L481 AbstractCegarLoop]: Abstraction has 6417 states and 8241 transitions. [2020-11-30 01:27:12,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:12,685 INFO L276 IsEmpty]: Start isEmpty. Operand 6417 states and 8241 transitions. [2020-11-30 01:27:12,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-11-30 01:27:12,748 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:12,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:12,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-30 01:27:12,749 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:12,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:12,749 INFO L82 PathProgramCache]: Analyzing trace with hash 980531743, now seen corresponding path program 1 times [2020-11-30 01:27:12,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:12,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703985335] [2020-11-30 01:27:12,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1419 backedges. 730 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-30 01:27:12,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703985335] [2020-11-30 01:27:12,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:12,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:12,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703510503] [2020-11-30 01:27:12,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:12,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:12,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:12,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:12,929 INFO L87 Difference]: Start difference. First operand 6417 states and 8241 transitions. Second operand 3 states. [2020-11-30 01:27:13,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:13,406 INFO L93 Difference]: Finished difference Result 13943 states and 18132 transitions. [2020-11-30 01:27:13,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:13,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 334 [2020-11-30 01:27:13,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:13,431 INFO L225 Difference]: With dead ends: 13943 [2020-11-30 01:27:13,431 INFO L226 Difference]: Without dead ends: 7563 [2020-11-30 01:27:13,445 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 [2020-11-30 01:27:13,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2020-11-30 01:27:13,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 6759. [2020-11-30 01:27:13,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6759 states. [2020-11-30 01:27:13,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6759 states to 6759 states and 8727 transitions. [2020-11-30 01:27:13,719 INFO L78 Accepts]: Start accepts. Automaton has 6759 states and 8727 transitions. Word has length 334 [2020-11-30 01:27:13,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:13,720 INFO L481 AbstractCegarLoop]: Abstraction has 6759 states and 8727 transitions. [2020-11-30 01:27:13,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:13,721 INFO L276 IsEmpty]: Start isEmpty. Operand 6759 states and 8727 transitions. [2020-11-30 01:27:13,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-11-30 01:27:13,743 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:13,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:13,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-30 01:27:13,744 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:13,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:13,745 INFO L82 PathProgramCache]: Analyzing trace with hash 650041975, now seen corresponding path program 1 times [2020-11-30 01:27:13,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:13,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799350883] [2020-11-30 01:27:13,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:14,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 954 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-30 01:27:14,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799350883] [2020-11-30 01:27:14,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793767881] [2020-11-30 01:27:14,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/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 [2020-11-30 01:27:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:14,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:27:14,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:27:14,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 821 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2020-11-30 01:27:14,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:27:14,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-30 01:27:14,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082315412] [2020-11-30 01:27:14,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:14,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:14,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:14,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:27:14,653 INFO L87 Difference]: Start difference. First operand 6759 states and 8727 transitions. Second operand 3 states. [2020-11-30 01:27:14,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:14,808 INFO L93 Difference]: Finished difference Result 15418 states and 19861 transitions. [2020-11-30 01:27:14,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:14,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 372 [2020-11-30 01:27:14,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:14,834 INFO L225 Difference]: With dead ends: 15418 [2020-11-30 01:27:14,834 INFO L226 Difference]: Without dead ends: 8696 [2020-11-30 01:27:14,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:27:14,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8696 states. [2020-11-30 01:27:15,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8696 to 8696. [2020-11-30 01:27:15,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8696 states. [2020-11-30 01:27:15,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8696 states to 8696 states and 11164 transitions. [2020-11-30 01:27:15,100 INFO L78 Accepts]: Start accepts. Automaton has 8696 states and 11164 transitions. Word has length 372 [2020-11-30 01:27:15,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:15,102 INFO L481 AbstractCegarLoop]: Abstraction has 8696 states and 11164 transitions. [2020-11-30 01:27:15,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 8696 states and 11164 transitions. [2020-11-30 01:27:15,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-11-30 01:27:15,118 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:15,118 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:15,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-11-30 01:27:15,345 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:15,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:15,345 INFO L82 PathProgramCache]: Analyzing trace with hash -590181313, now seen corresponding path program 1 times [2020-11-30 01:27:15,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:15,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538785806] [2020-11-30 01:27:15,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-30 01:27:15,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538785806] [2020-11-30 01:27:15,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400702502] [2020-11-30 01:27:15,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/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 [2020-11-30 01:27:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:15,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:27:15,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:27:16,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-11-30 01:27:16,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:27:16,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-30 01:27:16,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076735914] [2020-11-30 01:27:16,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:27:16,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:16,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:27:16,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:27:16,033 INFO L87 Difference]: Start difference. First operand 8696 states and 11164 transitions. Second operand 4 states. [2020-11-30 01:27:16,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:16,804 INFO L93 Difference]: Finished difference Result 18915 states and 24222 transitions. [2020-11-30 01:27:16,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:27:16,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2020-11-30 01:27:16,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:16,834 INFO L225 Difference]: With dead ends: 18915 [2020-11-30 01:27:16,834 INFO L226 Difference]: Without dead ends: 10260 [2020-11-30 01:27:16,848 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 [2020-11-30 01:27:16,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10260 states. [2020-11-30 01:27:17,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10260 to 9228. [2020-11-30 01:27:17,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9228 states. [2020-11-30 01:27:17,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9228 states to 9228 states and 11723 transitions. [2020-11-30 01:27:17,149 INFO L78 Accepts]: Start accepts. Automaton has 9228 states and 11723 transitions. Word has length 374 [2020-11-30 01:27:17,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:17,150 INFO L481 AbstractCegarLoop]: Abstraction has 9228 states and 11723 transitions. [2020-11-30 01:27:17,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:27:17,150 INFO L276 IsEmpty]: Start isEmpty. Operand 9228 states and 11723 transitions. [2020-11-30 01:27:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-11-30 01:27:17,170 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:17,171 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:17,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-11-30 01:27:17,389 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:17,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:17,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1273645298, now seen corresponding path program 1 times [2020-11-30 01:27:17,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:17,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995245069] [2020-11-30 01:27:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1971 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-11-30 01:27:17,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995245069] [2020-11-30 01:27:17,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:17,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:17,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626688142] [2020-11-30 01:27:17,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:27:17,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:17,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:17,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:17,734 INFO L87 Difference]: Start difference. First operand 9228 states and 11723 transitions. Second operand 3 states. [2020-11-30 01:27:18,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:18,201 INFO L93 Difference]: Finished difference Result 17032 states and 21420 transitions. [2020-11-30 01:27:18,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:18,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 413 [2020-11-30 01:27:18,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:18,214 INFO L225 Difference]: With dead ends: 17032 [2020-11-30 01:27:18,214 INFO L226 Difference]: Without dead ends: 3795 [2020-11-30 01:27:18,235 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 [2020-11-30 01:27:18,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2020-11-30 01:27:18,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3567. [2020-11-30 01:27:18,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3567 states. [2020-11-30 01:27:18,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3567 states to 3567 states and 4431 transitions. [2020-11-30 01:27:18,362 INFO L78 Accepts]: Start accepts. Automaton has 3567 states and 4431 transitions. Word has length 413 [2020-11-30 01:27:18,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:18,362 INFO L481 AbstractCegarLoop]: Abstraction has 3567 states and 4431 transitions. [2020-11-30 01:27:18,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:27:18,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3567 states and 4431 transitions. [2020-11-30 01:27:18,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-11-30 01:27:18,375 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:27:18,375 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:18,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-30 01:27:18,376 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:27:18,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:18,377 INFO L82 PathProgramCache]: Analyzing trace with hash 381067605, now seen corresponding path program 1 times [2020-11-30 01:27:18,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:18,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9403399] [2020-11-30 01:27:18,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2020-11-30 01:27:18,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9403399] [2020-11-30 01:27:18,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170839286] [2020-11-30 01:27:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/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 [2020-11-30 01:27:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:19,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:27:19,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:27:19,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2020-11-30 01:27:19,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:27:19,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-11-30 01:27:19,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195391986] [2020-11-30 01:27:19,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:27:19,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:19,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:27:19,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:27:19,287 INFO L87 Difference]: Start difference. First operand 3567 states and 4431 transitions. Second operand 4 states. [2020-11-30 01:27:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:19,630 INFO L93 Difference]: Finished difference Result 3781 states and 4699 transitions. [2020-11-30 01:27:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:27:19,631 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 442 [2020-11-30 01:27:19,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:27:19,632 INFO L225 Difference]: With dead ends: 3781 [2020-11-30 01:27:19,632 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:27:19,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:27:19,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:27:19,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:27:19,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:27:19,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:27:19,636 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 442 [2020-11-30 01:27:19,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:27:19,636 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:27:19,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:27:19,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:27:19,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:27:19,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:27:19,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:27:20,312 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 89 [2020-11-30 01:27:20,630 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 18 [2020-11-30 01:27:20,844 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2020-11-30 01:27:21,627 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-11-30 01:27:21,785 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2020-11-30 01:27:21,909 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 22 [2020-11-30 01:27:22,040 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 17 [2020-11-30 01:27:22,256 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2020-11-30 01:27:22,402 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 22 [2020-11-30 01:27:22,578 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 21 [2020-11-30 01:27:22,874 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2020-11-30 01:27:22,999 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 19 [2020-11-30 01:27:23,111 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 17 [2020-11-30 01:27:23,192 INFO L270 CegarLoopResult]: At program point L168(lines 164 494) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-11-30 01:27:23,193 INFO L270 CegarLoopResult]: At program point L102(lines 101 515) the Hoare annotation is: (let ((.cse0 (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse0 .cse1))) [2020-11-30 01:27:23,193 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 01:27:23,193 INFO L274 CegarLoopResult]: For program point L400(lines 400 402) no Hoare annotation was computed. [2020-11-30 01:27:23,193 INFO L274 CegarLoopResult]: For program point L367(lines 367 369) no Hoare annotation was computed. [2020-11-30 01:27:23,193 INFO L274 CegarLoopResult]: For program point L170(lines 170 492) no Hoare annotation was computed. [2020-11-30 01:27:23,193 INFO L274 CegarLoopResult]: For program point L137(lines 137 503) no Hoare annotation was computed. [2020-11-30 01:27:23,193 INFO L274 CegarLoopResult]: For program point L104(lines 104 514) no Hoare annotation was computed. [2020-11-30 01:27:23,193 INFO L274 CegarLoopResult]: For program point L468(lines 468 470) no Hoare annotation was computed. [2020-11-30 01:27:23,193 INFO L274 CegarLoopResult]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2020-11-30 01:27:23,193 INFO L270 CegarLoopResult]: At program point L138(lines 134 504) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-11-30 01:27:23,194 INFO L277 CegarLoopResult]: At program point L535(lines 97 536) the Hoare annotation is: true [2020-11-30 01:27:23,194 INFO L274 CegarLoopResult]: For program point L271(lines 271 275) no Hoare annotation was computed. [2020-11-30 01:27:23,194 INFO L274 CegarLoopResult]: For program point L238(lines 238 241) no Hoare annotation was computed. [2020-11-30 01:27:23,194 INFO L274 CegarLoopResult]: For program point L271-2(lines 271 275) no Hoare annotation was computed. [2020-11-30 01:27:23,194 INFO L274 CegarLoopResult]: For program point L305(lines 305 308) no Hoare annotation was computed. [2020-11-30 01:27:23,194 INFO L270 CegarLoopResult]: At program point L206(lines 104 514) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse0) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)))) [2020-11-30 01:27:23,194 INFO L274 CegarLoopResult]: For program point L173(lines 173 491) no Hoare annotation was computed. [2020-11-30 01:27:23,194 INFO L274 CegarLoopResult]: For program point L140(lines 140 502) no Hoare annotation was computed. [2020-11-30 01:27:23,194 INFO L274 CegarLoopResult]: For program point L107(lines 107 513) no Hoare annotation was computed. [2020-11-30 01:27:23,194 INFO L270 CegarLoopResult]: At program point L174(lines 170 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-11-30 01:27:23,194 INFO L274 CegarLoopResult]: For program point L473(lines 473 475) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L440(lines 440 451) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L407(lines 407 421) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L407-1(lines 407 421) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L440-2(lines 440 451) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L176(lines 176 490) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L143(lines 143 501) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L110(lines 110 512) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L540(lines 540 542) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L540-2(lines 540 542) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L270 CegarLoopResult]: At program point L144(lines 140 502) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L343(lines 343 345) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L211(lines 211 213) no Hoare annotation was computed. [2020-11-30 01:27:23,195 INFO L274 CegarLoopResult]: For program point L211-2(lines 211 213) no Hoare annotation was computed. [2020-11-30 01:27:23,196 INFO L274 CegarLoopResult]: For program point L377(lines 377 379) no Hoare annotation was computed. [2020-11-30 01:27:23,196 INFO L274 CegarLoopResult]: For program point L179(lines 179 489) no Hoare annotation was computed. [2020-11-30 01:27:23,196 INFO L274 CegarLoopResult]: For program point L146(lines 146 500) no Hoare annotation was computed. [2020-11-30 01:27:23,196 INFO L274 CegarLoopResult]: For program point L113(lines 113 511) no Hoare annotation was computed. [2020-11-30 01:27:23,196 INFO L274 CegarLoopResult]: For program point L411(lines 411 417) no Hoare annotation was computed. [2020-11-30 01:27:23,196 INFO L270 CegarLoopResult]: At program point L180(lines 176 490) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)))) [2020-11-30 01:27:23,196 INFO L274 CegarLoopResult]: For program point L445(lines 445 448) no Hoare annotation was computed. [2020-11-30 01:27:23,196 INFO L274 CegarLoopResult]: For program point L313(lines 313 315) no Hoare annotation was computed. [2020-11-30 01:27:23,196 INFO L274 CegarLoopResult]: For program point L280-1(lines 280 290) no Hoare annotation was computed. [2020-11-30 01:27:23,196 INFO L277 CegarLoopResult]: At program point L545(lines 12 547) the Hoare annotation is: true [2020-11-30 01:27:23,196 INFO L270 CegarLoopResult]: At program point L314(lines 76 546) the Hoare annotation is: false [2020-11-30 01:27:23,197 INFO L274 CegarLoopResult]: For program point L182(lines 182 488) no Hoare annotation was computed. [2020-11-30 01:27:23,197 INFO L274 CegarLoopResult]: For program point L149(lines 149 499) no Hoare annotation was computed. [2020-11-30 01:27:23,197 INFO L274 CegarLoopResult]: For program point L116(lines 116 510) no Hoare annotation was computed. [2020-11-30 01:27:23,197 INFO L274 CegarLoopResult]: For program point L216(lines 216 219) no Hoare annotation was computed. [2020-11-30 01:27:23,197 INFO L270 CegarLoopResult]: At program point L150(lines 146 500) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse3 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 .cse1 .cse3 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 .cse3 .cse2))) [2020-11-30 01:27:23,198 INFO L274 CegarLoopResult]: For program point L84(lines 84 90) no Hoare annotation was computed. [2020-11-30 01:27:23,198 INFO L270 CegarLoopResult]: At program point L481(lines 98 534) the Hoare annotation is: (let ((.cse3 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse5 (= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse10 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse7 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse11 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse0 (= 4512 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse8 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (and .cse5 .cse1) (and .cse6 .cse7 .cse8 .cse2 .cse4 .cse9) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2 .cse9) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse10 .cse1 .cse11) (and .cse1 .cse9) (and .cse1 .cse3 .cse4) (and .cse2 (= 4464 ULTIMATE.start_ssl3_connect_~s__state~0) .cse9) (and .cse5 .cse2 .cse9) (and .cse10 .cse7 .cse2 .cse4 .cse11 .cse9) (and .cse2 (= 4496 ULTIMATE.start_ssl3_connect_~s__state~0) .cse9) (and .cse2 (= ULTIMATE.start_ssl3_connect_~s__state~0 4480) .cse9) (and .cse0 .cse2 .cse9) (and .cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse1 .cse8) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)))) [2020-11-30 01:27:23,198 INFO L274 CegarLoopResult]: For program point L316(lines 316 318) no Hoare annotation was computed. [2020-11-30 01:27:23,199 INFO L274 CegarLoopResult]: For program point L250(lines 250 252) no Hoare annotation was computed. [2020-11-30 01:27:23,199 INFO L274 CegarLoopResult]: For program point L250-2(lines 201 480) no Hoare annotation was computed. [2020-11-30 01:27:23,199 INFO L274 CegarLoopResult]: For program point L383(lines 383 387) no Hoare annotation was computed. [2020-11-30 01:27:23,199 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:27:23,199 INFO L274 CegarLoopResult]: For program point L383-2(lines 201 480) no Hoare annotation was computed. [2020-11-30 01:27:23,199 INFO L274 CegarLoopResult]: For program point L284(lines 284 286) no Hoare annotation was computed. [2020-11-30 01:27:23,200 INFO L274 CegarLoopResult]: For program point L284-2(lines 282 290) no Hoare annotation was computed. [2020-11-30 01:27:23,200 INFO L274 CegarLoopResult]: For program point L185(lines 185 487) no Hoare annotation was computed. [2020-11-30 01:27:23,200 INFO L274 CegarLoopResult]: For program point L152(lines 152 498) no Hoare annotation was computed. [2020-11-30 01:27:23,200 INFO L274 CegarLoopResult]: For program point L119(lines 119 509) no Hoare annotation was computed. [2020-11-30 01:27:23,200 INFO L274 CegarLoopResult]: For program point L516(lines 516 532) no Hoare annotation was computed. [2020-11-30 01:27:23,200 INFO L270 CegarLoopResult]: At program point L186(lines 182 488) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)))) [2020-11-30 01:27:23,201 INFO L270 CegarLoopResult]: At program point L120(lines 116 510) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse1))) [2020-11-30 01:27:23,201 INFO L274 CegarLoopResult]: For program point L87(lines 87 89) no Hoare annotation was computed. [2020-11-30 01:27:23,201 INFO L274 CegarLoopResult]: For program point L87-2(lines 84 90) no Hoare annotation was computed. [2020-11-30 01:27:23,201 INFO L274 CegarLoopResult]: For program point L517(lines 517 531) no Hoare annotation was computed. [2020-11-30 01:27:23,201 INFO L274 CegarLoopResult]: For program point L352(lines 352 354) no Hoare annotation was computed. [2020-11-30 01:27:23,202 INFO L274 CegarLoopResult]: For program point L518(lines 518 523) no Hoare annotation was computed. [2020-11-30 01:27:23,202 INFO L274 CegarLoopResult]: For program point L518-2(lines 517 531) no Hoare annotation was computed. [2020-11-30 01:27:23,202 INFO L274 CegarLoopResult]: For program point L188(lines 188 486) no Hoare annotation was computed. [2020-11-30 01:27:23,202 INFO L274 CegarLoopResult]: For program point L155(lines 155 497) no Hoare annotation was computed. [2020-11-30 01:27:23,202 INFO L274 CegarLoopResult]: For program point L122(lines 122 508) no Hoare annotation was computed. [2020-11-30 01:27:23,202 INFO L274 CegarLoopResult]: For program point L222(lines 222 233) no Hoare annotation was computed. [2020-11-30 01:27:23,203 INFO L274 CegarLoopResult]: For program point L222-2(lines 201 480) no Hoare annotation was computed. [2020-11-30 01:27:23,203 INFO L274 CegarLoopResult]: For program point L520(lines 520 522) no Hoare annotation was computed. [2020-11-30 01:27:23,203 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:27:23,203 INFO L274 CegarLoopResult]: For program point L356(lines 356 361) no Hoare annotation was computed. [2020-11-30 01:27:23,203 INFO L274 CegarLoopResult]: For program point L356-2(lines 356 361) no Hoare annotation was computed. [2020-11-30 01:27:23,203 INFO L274 CegarLoopResult]: For program point L224(lines 224 227) no Hoare annotation was computed. [2020-11-30 01:27:23,204 INFO L274 CegarLoopResult]: For program point L191(lines 191 485) no Hoare annotation was computed. [2020-11-30 01:27:23,204 INFO L274 CegarLoopResult]: For program point L158(lines 158 496) no Hoare annotation was computed. [2020-11-30 01:27:23,206 INFO L274 CegarLoopResult]: For program point L125(lines 125 507) no Hoare annotation was computed. [2020-11-30 01:27:23,206 INFO L274 CegarLoopResult]: For program point L92(lines 92 96) no Hoare annotation was computed. [2020-11-30 01:27:23,209 INFO L274 CegarLoopResult]: For program point L456-1(lines 456 458) no Hoare annotation was computed. [2020-11-30 01:27:23,209 INFO L274 CegarLoopResult]: For program point L258(lines 258 260) no Hoare annotation was computed. [2020-11-30 01:27:23,209 INFO L270 CegarLoopResult]: At program point L192(lines 188 486) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse3 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse2 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse4 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 .cse4) (and .cse1 .cse2 .cse4) (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse3 .cse2 .cse4))) [2020-11-30 01:27:23,210 INFO L270 CegarLoopResult]: At program point L126(lines 122 508) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) .cse1) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-11-30 01:27:23,210 INFO L274 CegarLoopResult]: For program point L93(lines 93 95) no Hoare annotation was computed. [2020-11-30 01:27:23,210 INFO L277 CegarLoopResult]: At program point L556(lines 548 558) the Hoare annotation is: true [2020-11-30 01:27:23,210 INFO L274 CegarLoopResult]: For program point L325(lines 325 327) no Hoare annotation was computed. [2020-11-30 01:27:23,210 INFO L274 CegarLoopResult]: For program point L325-2(lines 201 480) no Hoare annotation was computed. [2020-11-30 01:27:23,211 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:27:23,211 INFO L274 CegarLoopResult]: For program point L392(lines 392 395) no Hoare annotation was computed. [2020-11-30 01:27:23,211 INFO L274 CegarLoopResult]: For program point L194(lines 194 484) no Hoare annotation was computed. [2020-11-30 01:27:23,211 INFO L274 CegarLoopResult]: For program point L161(lines 161 495) no Hoare annotation was computed. [2020-11-30 01:27:23,211 INFO L274 CegarLoopResult]: For program point L128(lines 128 506) no Hoare annotation was computed. [2020-11-30 01:27:23,211 INFO L274 CegarLoopResult]: For program point L525(lines 525 529) no Hoare annotation was computed. [2020-11-30 01:27:23,211 INFO L274 CegarLoopResult]: For program point L228(lines 228 231) no Hoare annotation was computed. [2020-11-30 01:27:23,212 INFO L270 CegarLoopResult]: At program point L195(lines 194 484) the Hoare annotation is: (let ((.cse2 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse4 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse3) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse3) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse4 .cse1))) [2020-11-30 01:27:23,212 INFO L270 CegarLoopResult]: At program point L162(lines 152 498) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4464 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-11-30 01:27:23,212 INFO L274 CegarLoopResult]: For program point L427(lines 427 429) no Hoare annotation was computed. [2020-11-30 01:27:23,212 INFO L274 CegarLoopResult]: For program point L197(lines 197 483) no Hoare annotation was computed. [2020-11-30 01:27:23,213 INFO L274 CegarLoopResult]: For program point L164(lines 164 494) no Hoare annotation was computed. [2020-11-30 01:27:23,213 INFO L274 CegarLoopResult]: For program point L131(lines 131 505) no Hoare annotation was computed. [2020-11-30 01:27:23,213 INFO L274 CegarLoopResult]: For program point L98-1(lines 76 546) no Hoare annotation was computed. [2020-11-30 01:27:23,213 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:27:23,213 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 01:27:23,214 INFO L274 CegarLoopResult]: For program point L462(lines 462 464) no Hoare annotation was computed. [2020-11-30 01:27:23,214 INFO L274 CegarLoopResult]: For program point L462-2(lines 462 464) no Hoare annotation was computed. [2020-11-30 01:27:23,214 INFO L274 CegarLoopResult]: For program point L297(lines 297 299) no Hoare annotation was computed. [2020-11-30 01:27:23,214 INFO L274 CegarLoopResult]: For program point L297-2(lines 201 480) no Hoare annotation was computed. [2020-11-30 01:27:23,214 INFO L277 CegarLoopResult]: At program point L198(lines 197 483) the Hoare annotation is: true [2020-11-30 01:27:23,214 INFO L270 CegarLoopResult]: At program point L132(lines 128 506) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1 .cse2) (and .cse0 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse1 (= 256 ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2))) [2020-11-30 01:27:23,215 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-11-30 01:27:23,215 INFO L274 CegarLoopResult]: For program point L430(lines 430 434) no Hoare annotation was computed. [2020-11-30 01:27:23,215 INFO L274 CegarLoopResult]: For program point L430-2(lines 430 434) no Hoare annotation was computed. [2020-11-30 01:27:23,215 INFO L274 CegarLoopResult]: For program point L331(lines 331 335) no Hoare annotation was computed. [2020-11-30 01:27:23,215 INFO L274 CegarLoopResult]: For program point L265(lines 265 267) no Hoare annotation was computed. [2020-11-30 01:27:23,215 INFO L274 CegarLoopResult]: For program point L331-2(lines 331 335) no Hoare annotation was computed. [2020-11-30 01:27:23,216 INFO L274 CegarLoopResult]: For program point L265-2(lines 201 480) no Hoare annotation was computed. [2020-11-30 01:27:23,216 INFO L277 CegarLoopResult]: At program point L200(lines 199 483) the Hoare annotation is: true [2020-11-30 01:27:23,216 INFO L274 CegarLoopResult]: For program point L167(lines 167 493) no Hoare annotation was computed. [2020-11-30 01:27:23,216 INFO L274 CegarLoopResult]: For program point L134(lines 134 504) no Hoare annotation was computed. [2020-11-30 01:27:23,216 INFO L274 CegarLoopResult]: For program point L101(lines 101 515) no Hoare annotation was computed. [2020-11-30 01:27:23,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:27:23 BoogieIcfgContainer [2020-11-30 01:27:23,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:27:23,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:27:23,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:27:23,284 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:27:23,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:00" (3/4) ... [2020-11-30 01:27:23,289 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:27:23,326 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 01:27:23,328 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:27:23,329 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:27:23,331 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:27:23,507 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f39c215b-957d-4481-a218-3b5dfb331a9c/bin/uautomizer/witness.graphml [2020-11-30 01:27:23,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:27:23,508 INFO L168 Benchmark]: Toolchain (without parser) took 25747.33 ms. Allocated memory was 94.4 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 66.4 MB in the beginning and 951.7 MB in the end (delta: -885.3 MB). Peak memory consumption was 176.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:23,508 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 94.4 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:27:23,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.98 ms. Allocated memory is still 94.4 MB. Free memory was 66.2 MB in the beginning and 66.7 MB in the end (delta: -507.8 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:23,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.60 ms. Allocated memory is still 94.4 MB. Free memory was 66.7 MB in the beginning and 64.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:23,510 INFO L168 Benchmark]: Boogie Preprocessor took 104.73 ms. Allocated memory is still 94.4 MB. Free memory was 64.0 MB in the beginning and 61.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:23,510 INFO L168 Benchmark]: RCFGBuilder took 1648.94 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 61.9 MB in the beginning and 59.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:23,511 INFO L168 Benchmark]: TraceAbstraction took 23133.11 ms. Allocated memory was 113.2 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 58.8 MB in the beginning and 962.2 MB in the end (delta: -903.4 MB). Peak memory consumption was 474.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:23,511 INFO L168 Benchmark]: Witness Printer took 223.25 ms. Allocated memory is still 1.2 GB. Free memory was 962.2 MB in the beginning and 951.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:23,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 94.4 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 553.98 ms. Allocated memory is still 94.4 MB. Free memory was 66.2 MB in the beginning and 66.7 MB in the end (delta: -507.8 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.60 ms. Allocated memory is still 94.4 MB. Free memory was 66.7 MB in the beginning and 64.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 104.73 ms. Allocated memory is still 94.4 MB. Free memory was 64.0 MB in the beginning and 61.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1648.94 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 61.9 MB in the beginning and 59.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 23133.11 ms. Allocated memory was 113.2 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 58.8 MB in the beginning and 962.2 MB in the end (delta: -903.4 MB). Peak memory consumption was 474.5 MB. Max. memory is 16.1 GB. * Witness Printer took 223.25 ms. Allocated memory is still 1.2 GB. Free memory was 962.2 MB in the beginning and 951.7 MB in the end (delta: 10.5 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: 182]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || ((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((blastFlag == 0 && 12292 == s__state) || ((blastFlag == 2 && 12292 == s__state) && s__hit == 0)) || (((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && 12292 == s__state) && s__hit == 0) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: ((((((((((((((((4512 == s__state && blastFlag == 2) || ((256 == s__s3__tmp__new_cipher__algorithms && s__state <= 3) && s__s3__tmp__next_state___0 <= 4560)) || (s__state == 4528 && blastFlag == 2)) || (((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (blastFlag == 1 && s__state == 4384)) || ((s__state <= 4560 && blastFlag == 2) && 4560 <= s__state)) || (blastFlag == 2 && s__hit == 0)) || ((blastFlag == 2 && s__state <= 3) && s__s3__tmp__next_state___0 <= 4560)) || ((256 == s__s3__tmp__new_cipher__algorithms && 4464 == s__state) && s__hit == 0)) || ((s__state == 4528 && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || ((256 == s__s3__tmp__new_cipher__algorithms && 4496 == s__state) && s__hit == 0)) || ((256 == s__s3__tmp__new_cipher__algorithms && s__state == 4480) && s__hit == 0)) || ((4512 == s__state && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (((s__state <= 4352 && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state)) || (blastFlag == 0 && s__state == 4368) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || (((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) && s__hit == 0) - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((s__state <= 4560 && blastFlag == 1) && 4352 <= s__state)) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || ((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 188]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4560 <= s__state) || ((((s__state <= 4560 && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || ((blastFlag == 2 && 4560 <= s__state) && s__hit == 0)) || (((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && 4560 <= s__state) && s__hit == 0) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || (((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) && s__hit == 0) - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || ((s__state <= 4560 && blastFlag == 0) && 4352 <= s__state) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: (((((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((((s__state <= 4352 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (((s__state <= 4352 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0)) || (((s__state <= 4352 && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__hit == 0) || ((blastFlag <= 4 && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0)) || (s__state <= 4352 && blastFlag == 0) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4464 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) || (((s__state <= 4560 && 4464 <= s__state) && blastFlag == 2) && s__hit == 0) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && blastFlag == 2) && 4352 <= s__state) && s__hit == 0) || ((((s__state <= 4560 && blastFlag <= 4) && 4352 <= s__state) && 256 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 128 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.6s, OverallIterations: 26, TraceHistogramMax: 18, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5036 SDtfs, 1502 SDslu, 2889 SDs, 0 SdLazy, 2415 SolverSat, 407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1564 GetRequests, 1530 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9228occurred in iteration=24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 26 MinimizatonAttempts, 3643 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 269 NumberOfFragments, 696 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9570 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 22 FomulaSimplificationsInter, 1190 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 6634 NumberOfCodeBlocks, 6634 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 6604 ConstructedInterpolants, 0 QuantifiedInterpolants, 2667422 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2703 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 30 InterpolantComputations, 23 PerfectInterpolantSequences, 22225/22304 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...