./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/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 c14635b48a1cad23828e85d86c9c53e48c3a7731 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:19:50,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:19:50,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:19:50,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:19:50,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:19:50,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:19:50,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:19:50,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:19:50,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:19:50,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:19:50,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:19:50,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:19:50,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:19:50,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:19:50,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:19:50,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:19:50,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:19:50,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:19:50,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:19:50,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:19:50,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:19:50,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:19:50,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:19:50,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:19:50,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:19:50,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:19:50,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:19:50,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:19:50,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:19:50,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:19:50,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:19:50,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:19:50,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:19:50,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:19:50,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:19:50,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:19:50,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:19:50,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:19:50,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:19:50,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:19:50,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:19:50,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:19:50,466 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:19:50,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:19:50,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:19:50,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:19:50,469 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:19:50,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:19:50,470 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:19:50,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:19:50,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:19:50,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:19:50,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:19:50,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:19:50,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:19:50,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:19:50,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:19:50,474 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:19:50,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:19:50,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:19:50,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:19:50,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:19:50,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:19:50,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:19:50,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:19:50,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:19:50,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:19:50,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:19:50,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:19:50,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:19:50,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:19:50,478 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_d8d2aadb-0707-401a-abde-6804f3b7af4f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c14635b48a1cad23828e85d86c9c53e48c3a7731 [2020-12-01 15:19:50,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:19:50,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:19:50,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:19:50,918 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:19:50,919 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:19:50,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2020-12-01 15:19:51,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer/data/4f1275e82/6586391bbb2e4f998499dd3403fcb1d9/FLAG64250e2c2 [2020-12-01 15:19:51,570 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:19:51,571 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2020-12-01 15:19:51,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer/data/4f1275e82/6586391bbb2e4f998499dd3403fcb1d9/FLAG64250e2c2 [2020-12-01 15:19:51,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer/data/4f1275e82/6586391bbb2e4f998499dd3403fcb1d9 [2020-12-01 15:19:51,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:19:51,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:19:51,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:19:51,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:19:51,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:19:51,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:19:51" (1/1) ... [2020-12-01 15:19:51,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc7ea18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:51, skipping insertion in model container [2020-12-01 15:19:51,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:19:51" (1/1) ... [2020-12-01 15:19:51,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:19:52,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:19:52,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:19:52,409 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:19:52,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:19:52,486 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:19:52,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52 WrapperNode [2020-12-01 15:19:52,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:19:52,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:19:52,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:19:52,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:19:52,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52" (1/1) ... [2020-12-01 15:19:52,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52" (1/1) ... [2020-12-01 15:19:52,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:19:52,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:19:52,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:19:52,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:19:52,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52" (1/1) ... [2020-12-01 15:19:52,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52" (1/1) ... [2020-12-01 15:19:52,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52" (1/1) ... [2020-12-01 15:19:52,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52" (1/1) ... [2020-12-01 15:19:52,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52" (1/1) ... [2020-12-01 15:19:52,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52" (1/1) ... [2020-12-01 15:19:52,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52" (1/1) ... [2020-12-01 15:19:52,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:19:52,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:19:52,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:19:52,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:19:52,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/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 [2020-12-01 15:19:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:19:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:19:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:19:52,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:19:53,066 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-01 15:19:53,666 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-12-01 15:19:53,666 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-12-01 15:19:53,677 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:19:53,677 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:19:53,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:19:53 BoogieIcfgContainer [2020-12-01 15:19:53,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:19:53,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:19:53,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:19:53,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:19:53,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:19:51" (1/3) ... [2020-12-01 15:19:53,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51493c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:19:53, skipping insertion in model container [2020-12-01 15:19:53,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:19:52" (2/3) ... [2020-12-01 15:19:53,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51493c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:19:53, skipping insertion in model container [2020-12-01 15:19:53,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:19:53" (3/3) ... [2020-12-01 15:19:53,692 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2020-12-01 15:19:53,710 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:19:53,715 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:19:53,728 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:19:53,768 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:19:53,769 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:19:53,769 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:19:53,769 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:19:53,769 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:19:53,770 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:19:53,770 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:19:53,770 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:19:53,791 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2020-12-01 15:19:53,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 15:19:53,799 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:53,800 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, 1] [2020-12-01 15:19:53,801 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:53,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:53,808 INFO L82 PathProgramCache]: Analyzing trace with hash 259999105, now seen corresponding path program 1 times [2020-12-01 15:19:53,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:53,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499914970] [2020-12-01 15:19:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:54,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:19:54,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499914970] [2020-12-01 15:19:54,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:54,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:54,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90182893] [2020-12-01 15:19:54,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:54,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:54,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:54,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:54,153 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 3 states. [2020-12-01 15:19:54,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:54,531 INFO L93 Difference]: Finished difference Result 248 states and 424 transitions. [2020-12-01 15:19:54,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:54,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-01 15:19:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:54,553 INFO L225 Difference]: With dead ends: 248 [2020-12-01 15:19:54,553 INFO L226 Difference]: Without dead ends: 113 [2020-12-01 15:19:54,559 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 [2020-12-01 15:19:54,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-12-01 15:19:54,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-12-01 15:19:54,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-12-01 15:19:54,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 171 transitions. [2020-12-01 15:19:54,639 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 171 transitions. Word has length 25 [2020-12-01 15:19:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:54,640 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 171 transitions. [2020-12-01 15:19:54,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:54,641 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 171 transitions. [2020-12-01 15:19:54,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-01 15:19:54,645 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:54,645 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] [2020-12-01 15:19:54,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:19:54,646 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:54,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:54,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1138040513, now seen corresponding path program 1 times [2020-12-01 15:19:54,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:54,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240881649] [2020-12-01 15:19:54,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:54,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:19:54,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240881649] [2020-12-01 15:19:54,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:54,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:54,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819860703] [2020-12-01 15:19:54,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:54,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:54,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:54,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:54,791 INFO L87 Difference]: Start difference. First operand 113 states and 171 transitions. Second operand 3 states. [2020-12-01 15:19:54,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:54,973 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2020-12-01 15:19:54,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:54,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-12-01 15:19:54,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:54,980 INFO L225 Difference]: With dead ends: 233 [2020-12-01 15:19:54,980 INFO L226 Difference]: Without dead ends: 131 [2020-12-01 15:19:54,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:54,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-12-01 15:19:55,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2020-12-01 15:19:55,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-12-01 15:19:55,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 191 transitions. [2020-12-01 15:19:55,012 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 191 transitions. Word has length 37 [2020-12-01 15:19:55,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:55,013 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 191 transitions. [2020-12-01 15:19:55,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:55,013 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 191 transitions. [2020-12-01 15:19:55,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-01 15:19:55,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:55,020 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] [2020-12-01 15:19:55,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:19:55,021 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:55,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:55,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1126420040, now seen corresponding path program 1 times [2020-12-01 15:19:55,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:55,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558547028] [2020-12-01 15:19:55,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:55,108 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 15:19:55,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558547028] [2020-12-01 15:19:55,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:55,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:55,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794629225] [2020-12-01 15:19:55,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:55,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:55,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:55,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:55,116 INFO L87 Difference]: Start difference. First operand 128 states and 191 transitions. Second operand 3 states. [2020-12-01 15:19:55,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:55,149 INFO L93 Difference]: Finished difference Result 271 states and 400 transitions. [2020-12-01 15:19:55,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:55,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-01 15:19:55,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:55,153 INFO L225 Difference]: With dead ends: 271 [2020-12-01 15:19:55,153 INFO L226 Difference]: Without dead ends: 154 [2020-12-01 15:19:55,157 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 [2020-12-01 15:19:55,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-12-01 15:19:55,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-12-01 15:19:55,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-01 15:19:55,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2020-12-01 15:19:55,174 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 51 [2020-12-01 15:19:55,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:55,174 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2020-12-01 15:19:55,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2020-12-01 15:19:55,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-01 15:19:55,176 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:55,177 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] [2020-12-01 15:19:55,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:19:55,177 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:55,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:55,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1260433546, now seen corresponding path program 1 times [2020-12-01 15:19:55,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:55,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168046944] [2020-12-01 15:19:55,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:55,315 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 15:19:55,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168046944] [2020-12-01 15:19:55,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:55,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:55,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473922476] [2020-12-01 15:19:55,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:55,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:55,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:55,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:55,320 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand 3 states. [2020-12-01 15:19:55,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:55,492 INFO L93 Difference]: Finished difference Result 292 states and 435 transitions. [2020-12-01 15:19:55,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:55,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-01 15:19:55,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:55,495 INFO L225 Difference]: With dead ends: 292 [2020-12-01 15:19:55,496 INFO L226 Difference]: Without dead ends: 175 [2020-12-01 15:19:55,498 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 [2020-12-01 15:19:55,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-12-01 15:19:55,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2020-12-01 15:19:55,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-12-01 15:19:55,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions. [2020-12-01 15:19:55,530 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 51 [2020-12-01 15:19:55,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:55,532 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 246 transitions. [2020-12-01 15:19:55,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions. [2020-12-01 15:19:55,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-01 15:19:55,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:55,538 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] [2020-12-01 15:19:55,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:19:55,540 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:55,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:55,541 INFO L82 PathProgramCache]: Analyzing trace with hash -457628469, now seen corresponding path program 1 times [2020-12-01 15:19:55,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:55,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316130722] [2020-12-01 15:19:55,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:55,653 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-01 15:19:55,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316130722] [2020-12-01 15:19:55,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:55,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:55,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459598316] [2020-12-01 15:19:55,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:55,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:55,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:55,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:55,659 INFO L87 Difference]: Start difference. First operand 171 states and 246 transitions. Second operand 3 states. [2020-12-01 15:19:55,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:55,713 INFO L93 Difference]: Finished difference Result 436 states and 638 transitions. [2020-12-01 15:19:55,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:55,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-12-01 15:19:55,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:55,718 INFO L225 Difference]: With dead ends: 436 [2020-12-01 15:19:55,718 INFO L226 Difference]: Without dead ends: 302 [2020-12-01 15:19:55,719 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 [2020-12-01 15:19:55,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-12-01 15:19:55,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2020-12-01 15:19:55,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-12-01 15:19:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 435 transitions. [2020-12-01 15:19:55,746 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 435 transitions. Word has length 68 [2020-12-01 15:19:55,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:55,748 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 435 transitions. [2020-12-01 15:19:55,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:55,749 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 435 transitions. [2020-12-01 15:19:55,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-01 15:19:55,756 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:55,756 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, 1] [2020-12-01 15:19:55,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:19:55,757 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:55,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:55,758 INFO L82 PathProgramCache]: Analyzing trace with hash 562572643, now seen corresponding path program 1 times [2020-12-01 15:19:55,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:55,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321439964] [2020-12-01 15:19:55,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:55,845 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 15:19:55,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321439964] [2020-12-01 15:19:55,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:55,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:55,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976723593] [2020-12-01 15:19:55,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:55,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:55,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:55,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:55,853 INFO L87 Difference]: Start difference. First operand 302 states and 435 transitions. Second operand 3 states. [2020-12-01 15:19:55,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:55,896 INFO L93 Difference]: Finished difference Result 588 states and 849 transitions. [2020-12-01 15:19:55,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:55,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-12-01 15:19:55,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:55,900 INFO L225 Difference]: With dead ends: 588 [2020-12-01 15:19:55,900 INFO L226 Difference]: Without dead ends: 323 [2020-12-01 15:19:55,901 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 [2020-12-01 15:19:55,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-12-01 15:19:55,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2020-12-01 15:19:55,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-12-01 15:19:55,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 462 transitions. [2020-12-01 15:19:55,924 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 462 transitions. Word has length 69 [2020-12-01 15:19:55,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:55,925 INFO L481 AbstractCegarLoop]: Abstraction has 323 states and 462 transitions. [2020-12-01 15:19:55,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:55,925 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 462 transitions. [2020-12-01 15:19:55,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-01 15:19:55,927 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:55,927 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:55,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:19:55,927 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:55,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:55,930 INFO L82 PathProgramCache]: Analyzing trace with hash 777921003, now seen corresponding path program 1 times [2020-12-01 15:19:55,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:55,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623104336] [2020-12-01 15:19:55,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:56,060 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-12-01 15:19:56,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623104336] [2020-12-01 15:19:56,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:56,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:56,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061356526] [2020-12-01 15:19:56,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:56,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:56,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:56,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:56,066 INFO L87 Difference]: Start difference. First operand 323 states and 462 transitions. Second operand 3 states. [2020-12-01 15:19:56,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:56,241 INFO L93 Difference]: Finished difference Result 657 states and 958 transitions. [2020-12-01 15:19:56,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:56,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-12-01 15:19:56,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:56,246 INFO L225 Difference]: With dead ends: 657 [2020-12-01 15:19:56,247 INFO L226 Difference]: Without dead ends: 371 [2020-12-01 15:19:56,248 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 [2020-12-01 15:19:56,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-12-01 15:19:56,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 365. [2020-12-01 15:19:56,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-12-01 15:19:56,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 514 transitions. [2020-12-01 15:19:56,271 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 514 transitions. Word has length 86 [2020-12-01 15:19:56,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:56,272 INFO L481 AbstractCegarLoop]: Abstraction has 365 states and 514 transitions. [2020-12-01 15:19:56,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:56,273 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 514 transitions. [2020-12-01 15:19:56,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-01 15:19:56,281 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:56,281 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] [2020-12-01 15:19:56,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 15:19:56,282 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:56,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:56,283 INFO L82 PathProgramCache]: Analyzing trace with hash -97425693, now seen corresponding path program 1 times [2020-12-01 15:19:56,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:56,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250322003] [2020-12-01 15:19:56,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:56,386 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-12-01 15:19:56,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250322003] [2020-12-01 15:19:56,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:56,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:56,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045063331] [2020-12-01 15:19:56,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:56,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:56,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:56,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:56,389 INFO L87 Difference]: Start difference. First operand 365 states and 514 transitions. Second operand 3 states. [2020-12-01 15:19:56,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:56,441 INFO L93 Difference]: Finished difference Result 520 states and 737 transitions. [2020-12-01 15:19:56,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:56,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-12-01 15:19:56,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:56,449 INFO L225 Difference]: With dead ends: 520 [2020-12-01 15:19:56,449 INFO L226 Difference]: Without dead ends: 518 [2020-12-01 15:19:56,450 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 [2020-12-01 15:19:56,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-12-01 15:19:56,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2020-12-01 15:19:56,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-12-01 15:19:56,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 735 transitions. [2020-12-01 15:19:56,470 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 735 transitions. Word has length 106 [2020-12-01 15:19:56,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:56,471 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 735 transitions. [2020-12-01 15:19:56,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:56,471 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 735 transitions. [2020-12-01 15:19:56,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-01 15:19:56,473 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:56,474 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:56,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 15:19:56,474 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:56,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:56,475 INFO L82 PathProgramCache]: Analyzing trace with hash -833396868, now seen corresponding path program 1 times [2020-12-01 15:19:56,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:56,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732482385] [2020-12-01 15:19:56,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:56,568 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-12-01 15:19:56,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732482385] [2020-12-01 15:19:56,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:56,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:56,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395633805] [2020-12-01 15:19:56,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:56,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:56,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:56,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:56,576 INFO L87 Difference]: Start difference. First operand 518 states and 735 transitions. Second operand 3 states. [2020-12-01 15:19:56,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:56,848 INFO L93 Difference]: Finished difference Result 1149 states and 1685 transitions. [2020-12-01 15:19:56,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:56,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-12-01 15:19:56,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:56,853 INFO L225 Difference]: With dead ends: 1149 [2020-12-01 15:19:56,854 INFO L226 Difference]: Without dead ends: 665 [2020-12-01 15:19:56,855 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 [2020-12-01 15:19:56,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-12-01 15:19:56,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 641. [2020-12-01 15:19:56,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2020-12-01 15:19:56,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 933 transitions. [2020-12-01 15:19:56,876 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 933 transitions. Word has length 124 [2020-12-01 15:19:56,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:56,876 INFO L481 AbstractCegarLoop]: Abstraction has 641 states and 933 transitions. [2020-12-01 15:19:56,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:56,877 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 933 transitions. [2020-12-01 15:19:56,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-12-01 15:19:56,880 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:56,880 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:56,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 15:19:56,881 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:56,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:56,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1117892099, now seen corresponding path program 1 times [2020-12-01 15:19:56,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:56,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989759216] [2020-12-01 15:19:56,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:56,985 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-12-01 15:19:56,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989759216] [2020-12-01 15:19:56,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:56,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:56,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56234635] [2020-12-01 15:19:56,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:56,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:56,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:56,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:56,989 INFO L87 Difference]: Start difference. First operand 641 states and 933 transitions. Second operand 3 states. [2020-12-01 15:19:57,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:57,241 INFO L93 Difference]: Finished difference Result 1523 states and 2284 transitions. [2020-12-01 15:19:57,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:57,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-12-01 15:19:57,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:57,248 INFO L225 Difference]: With dead ends: 1523 [2020-12-01 15:19:57,248 INFO L226 Difference]: Without dead ends: 868 [2020-12-01 15:19:57,249 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 [2020-12-01 15:19:57,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-12-01 15:19:57,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 830. [2020-12-01 15:19:57,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-12-01 15:19:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1185 transitions. [2020-12-01 15:19:57,277 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1185 transitions. Word has length 150 [2020-12-01 15:19:57,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:57,277 INFO L481 AbstractCegarLoop]: Abstraction has 830 states and 1185 transitions. [2020-12-01 15:19:57,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1185 transitions. [2020-12-01 15:19:57,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-12-01 15:19:57,281 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:57,281 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:57,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 15:19:57,282 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:57,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:57,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1900103119, now seen corresponding path program 1 times [2020-12-01 15:19:57,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:57,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319729304] [2020-12-01 15:19:57,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:57,376 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-12-01 15:19:57,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319729304] [2020-12-01 15:19:57,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:57,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:57,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648249675] [2020-12-01 15:19:57,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:57,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:57,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:57,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:57,381 INFO L87 Difference]: Start difference. First operand 830 states and 1185 transitions. Second operand 3 states. [2020-12-01 15:19:57,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:57,636 INFO L93 Difference]: Finished difference Result 1779 states and 2561 transitions. [2020-12-01 15:19:57,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:57,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-12-01 15:19:57,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:57,643 INFO L225 Difference]: With dead ends: 1779 [2020-12-01 15:19:57,643 INFO L226 Difference]: Without dead ends: 941 [2020-12-01 15:19:57,645 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 [2020-12-01 15:19:57,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2020-12-01 15:19:57,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 905. [2020-12-01 15:19:57,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-12-01 15:19:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1281 transitions. [2020-12-01 15:19:57,676 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1281 transitions. Word has length 171 [2020-12-01 15:19:57,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:57,677 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1281 transitions. [2020-12-01 15:19:57,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:57,677 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1281 transitions. [2020-12-01 15:19:57,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-12-01 15:19:57,681 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:57,681 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 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] [2020-12-01 15:19:57,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-01 15:19:57,682 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:57,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:57,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1650023748, now seen corresponding path program 1 times [2020-12-01 15:19:57,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:57,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091445339] [2020-12-01 15:19:57,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-12-01 15:19:57,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091445339] [2020-12-01 15:19:57,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:57,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:57,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967753761] [2020-12-01 15:19:57,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:57,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:57,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:57,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:57,798 INFO L87 Difference]: Start difference. First operand 905 states and 1281 transitions. Second operand 3 states. [2020-12-01 15:19:58,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:58,025 INFO L93 Difference]: Finished difference Result 1929 states and 2750 transitions. [2020-12-01 15:19:58,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:58,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2020-12-01 15:19:58,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:58,033 INFO L225 Difference]: With dead ends: 1929 [2020-12-01 15:19:58,034 INFO L226 Difference]: Without dead ends: 1022 [2020-12-01 15:19:58,036 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 [2020-12-01 15:19:58,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2020-12-01 15:19:58,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 989. [2020-12-01 15:19:58,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 989 states. [2020-12-01 15:19:58,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1392 transitions. [2020-12-01 15:19:58,067 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1392 transitions. Word has length 195 [2020-12-01 15:19:58,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:58,068 INFO L481 AbstractCegarLoop]: Abstraction has 989 states and 1392 transitions. [2020-12-01 15:19:58,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:58,068 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1392 transitions. [2020-12-01 15:19:58,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-12-01 15:19:58,072 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:58,072 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 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] [2020-12-01 15:19:58,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-01 15:19:58,073 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:58,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:58,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1428789822, now seen corresponding path program 1 times [2020-12-01 15:19:58,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:58,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143361119] [2020-12-01 15:19:58,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-12-01 15:19:58,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143361119] [2020-12-01 15:19:58,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:58,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:58,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245217393] [2020-12-01 15:19:58,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:58,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:58,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:58,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:58,208 INFO L87 Difference]: Start difference. First operand 989 states and 1392 transitions. Second operand 3 states. [2020-12-01 15:19:58,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:58,467 INFO L93 Difference]: Finished difference Result 2097 states and 2975 transitions. [2020-12-01 15:19:58,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:58,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2020-12-01 15:19:58,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:58,475 INFO L225 Difference]: With dead ends: 2097 [2020-12-01 15:19:58,475 INFO L226 Difference]: Without dead ends: 1118 [2020-12-01 15:19:58,480 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 [2020-12-01 15:19:58,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-12-01 15:19:58,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1082. [2020-12-01 15:19:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2020-12-01 15:19:58,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1524 transitions. [2020-12-01 15:19:58,516 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1524 transitions. Word has length 195 [2020-12-01 15:19:58,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:58,516 INFO L481 AbstractCegarLoop]: Abstraction has 1082 states and 1524 transitions. [2020-12-01 15:19:58,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:58,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1524 transitions. [2020-12-01 15:19:58,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-12-01 15:19:58,521 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:58,522 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 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] [2020-12-01 15:19:58,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-01 15:19:58,522 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:58,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:58,523 INFO L82 PathProgramCache]: Analyzing trace with hash -390571940, now seen corresponding path program 1 times [2020-12-01 15:19:58,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:58,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140264683] [2020-12-01 15:19:58,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:58,657 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-12-01 15:19:58,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140264683] [2020-12-01 15:19:58,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:58,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:58,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595973728] [2020-12-01 15:19:58,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:58,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:58,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:58,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:58,660 INFO L87 Difference]: Start difference. First operand 1082 states and 1524 transitions. Second operand 3 states. [2020-12-01 15:19:58,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:58,724 INFO L93 Difference]: Finished difference Result 3169 states and 4471 transitions. [2020-12-01 15:19:58,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:58,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-12-01 15:19:58,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:58,739 INFO L225 Difference]: With dead ends: 3169 [2020-12-01 15:19:58,739 INFO L226 Difference]: Without dead ends: 2124 [2020-12-01 15:19:58,742 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 [2020-12-01 15:19:58,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2020-12-01 15:19:58,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 2122. [2020-12-01 15:19:58,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2122 states. [2020-12-01 15:19:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2992 transitions. [2020-12-01 15:19:58,815 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2992 transitions. Word has length 225 [2020-12-01 15:19:58,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:58,816 INFO L481 AbstractCegarLoop]: Abstraction has 2122 states and 2992 transitions. [2020-12-01 15:19:58,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:58,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2992 transitions. [2020-12-01 15:19:58,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-12-01 15:19:58,822 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:58,823 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 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] [2020-12-01 15:19:58,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-01 15:19:58,823 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:58,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:58,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1606725666, now seen corresponding path program 1 times [2020-12-01 15:19:58,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:58,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838612105] [2020-12-01 15:19:58,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:58,948 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2020-12-01 15:19:58,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838612105] [2020-12-01 15:19:58,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:58,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:58,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216046540] [2020-12-01 15:19:58,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:58,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:58,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:58,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:58,951 INFO L87 Difference]: Start difference. First operand 2122 states and 2992 transitions. Second operand 3 states. [2020-12-01 15:19:59,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:59,228 INFO L93 Difference]: Finished difference Result 4513 states and 6403 transitions. [2020-12-01 15:19:59,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:59,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-12-01 15:19:59,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:59,243 INFO L225 Difference]: With dead ends: 4513 [2020-12-01 15:19:59,244 INFO L226 Difference]: Without dead ends: 2398 [2020-12-01 15:19:59,249 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 [2020-12-01 15:19:59,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2020-12-01 15:19:59,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2332. [2020-12-01 15:19:59,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2332 states. [2020-12-01 15:19:59,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3304 transitions. [2020-12-01 15:19:59,351 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3304 transitions. Word has length 225 [2020-12-01 15:19:59,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:59,351 INFO L481 AbstractCegarLoop]: Abstraction has 2332 states and 3304 transitions. [2020-12-01 15:19:59,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3304 transitions. [2020-12-01 15:19:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-12-01 15:19:59,359 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:59,359 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:59,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-01 15:19:59,360 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:59,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:59,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1762482343, now seen corresponding path program 1 times [2020-12-01 15:19:59,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:59,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141739282] [2020-12-01 15:19:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:19:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:19:59,534 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2020-12-01 15:19:59,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141739282] [2020-12-01 15:19:59,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:19:59,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:19:59,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390524381] [2020-12-01 15:19:59,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:19:59,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:19:59,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:19:59,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:59,539 INFO L87 Difference]: Start difference. First operand 2332 states and 3304 transitions. Second operand 3 states. [2020-12-01 15:19:59,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:19:59,819 INFO L93 Difference]: Finished difference Result 4693 states and 6637 transitions. [2020-12-01 15:19:59,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:19:59,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 260 [2020-12-01 15:19:59,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:19:59,866 INFO L225 Difference]: With dead ends: 4693 [2020-12-01 15:19:59,867 INFO L226 Difference]: Without dead ends: 2380 [2020-12-01 15:19:59,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:19:59,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2020-12-01 15:19:59,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2314. [2020-12-01 15:19:59,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2314 states. [2020-12-01 15:19:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3250 transitions. [2020-12-01 15:19:59,968 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3250 transitions. Word has length 260 [2020-12-01 15:19:59,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:19:59,969 INFO L481 AbstractCegarLoop]: Abstraction has 2314 states and 3250 transitions. [2020-12-01 15:19:59,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:19:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3250 transitions. [2020-12-01 15:19:59,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-12-01 15:19:59,978 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:19:59,978 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:19:59,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-01 15:19:59,979 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:19:59,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:19:59,980 INFO L82 PathProgramCache]: Analyzing trace with hash 357446499, now seen corresponding path program 1 times [2020-12-01 15:19:59,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:19:59,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923870616] [2020-12-01 15:19:59,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:20:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:00,271 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2020-12-01 15:20:00,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923870616] [2020-12-01 15:20:00,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:20:00,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:20:00,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592746903] [2020-12-01 15:20:00,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:20:00,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:20:00,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:20:00,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:20:00,278 INFO L87 Difference]: Start difference. First operand 2314 states and 3250 transitions. Second operand 3 states. [2020-12-01 15:20:00,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:20:00,399 INFO L93 Difference]: Finished difference Result 6879 states and 9664 transitions. [2020-12-01 15:20:00,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:20:00,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2020-12-01 15:20:00,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:20:00,430 INFO L225 Difference]: With dead ends: 6879 [2020-12-01 15:20:00,430 INFO L226 Difference]: Without dead ends: 4602 [2020-12-01 15:20:00,435 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 [2020-12-01 15:20:00,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2020-12-01 15:20:00,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 4600. [2020-12-01 15:20:00,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4600 states. [2020-12-01 15:20:00,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6444 transitions. [2020-12-01 15:20:00,617 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6444 transitions. Word has length 270 [2020-12-01 15:20:00,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:20:00,618 INFO L481 AbstractCegarLoop]: Abstraction has 4600 states and 6444 transitions. [2020-12-01 15:20:00,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:20:00,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6444 transitions. [2020-12-01 15:20:00,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-12-01 15:20:00,633 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:20:00,633 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:20:00,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-01 15:20:00,634 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:20:00,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:20:00,635 INFO L82 PathProgramCache]: Analyzing trace with hash 259987815, now seen corresponding path program 1 times [2020-12-01 15:20:00,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:20:00,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963964339] [2020-12-01 15:20:00,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:20:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-12-01 15:20:00,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963964339] [2020-12-01 15:20:00,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:20:00,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:20:00,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76757156] [2020-12-01 15:20:00,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:20:00,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:20:00,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:20:00,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:20:00,791 INFO L87 Difference]: Start difference. First operand 4600 states and 6444 transitions. Second operand 3 states. [2020-12-01 15:20:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:20:01,114 INFO L93 Difference]: Finished difference Result 9242 states and 12935 transitions. [2020-12-01 15:20:01,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:20:01,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2020-12-01 15:20:01,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:20:01,144 INFO L225 Difference]: With dead ends: 9242 [2020-12-01 15:20:01,144 INFO L226 Difference]: Without dead ends: 4708 [2020-12-01 15:20:01,150 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 [2020-12-01 15:20:01,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4708 states. [2020-12-01 15:20:01,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4708 to 4600. [2020-12-01 15:20:01,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4600 states. [2020-12-01 15:20:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6336 transitions. [2020-12-01 15:20:01,327 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6336 transitions. Word has length 270 [2020-12-01 15:20:01,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:20:01,328 INFO L481 AbstractCegarLoop]: Abstraction has 4600 states and 6336 transitions. [2020-12-01 15:20:01,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:20:01,328 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6336 transitions. [2020-12-01 15:20:01,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-12-01 15:20:01,341 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:20:01,342 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:20:01,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-01 15:20:01,345 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:20:01,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:20:01,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1955386571, now seen corresponding path program 1 times [2020-12-01 15:20:01,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:20:01,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833303380] [2020-12-01 15:20:01,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:20:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:01,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-12-01 15:20:01,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833303380] [2020-12-01 15:20:01,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:20:01,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:20:01,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009095243] [2020-12-01 15:20:01,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:20:01,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:20:01,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:20:01,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:20:01,535 INFO L87 Difference]: Start difference. First operand 4600 states and 6336 transitions. Second operand 3 states. [2020-12-01 15:20:01,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:20:01,840 INFO L93 Difference]: Finished difference Result 9728 states and 13289 transitions. [2020-12-01 15:20:01,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:20:01,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 297 [2020-12-01 15:20:01,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:20:01,892 INFO L225 Difference]: With dead ends: 9728 [2020-12-01 15:20:01,900 INFO L226 Difference]: Without dead ends: 5194 [2020-12-01 15:20:01,907 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 [2020-12-01 15:20:01,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5194 states. [2020-12-01 15:20:02,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5194 to 4774. [2020-12-01 15:20:02,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4774 states. [2020-12-01 15:20:02,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 6570 transitions. [2020-12-01 15:20:02,116 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 6570 transitions. Word has length 297 [2020-12-01 15:20:02,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:20:02,117 INFO L481 AbstractCegarLoop]: Abstraction has 4774 states and 6570 transitions. [2020-12-01 15:20:02,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:20:02,118 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 6570 transitions. [2020-12-01 15:20:02,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-12-01 15:20:02,132 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:20:02,133 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:20:02,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-01 15:20:02,133 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:20:02,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:20:02,134 INFO L82 PathProgramCache]: Analyzing trace with hash -950226577, now seen corresponding path program 1 times [2020-12-01 15:20:02,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:20:02,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388042938] [2020-12-01 15:20:02,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:20:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:02,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-12-01 15:20:02,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388042938] [2020-12-01 15:20:02,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:20:02,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:20:02,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061829486] [2020-12-01 15:20:02,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:20:02,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:20:02,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:20:02,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:20:02,335 INFO L87 Difference]: Start difference. First operand 4774 states and 6570 transitions. Second operand 3 states. [2020-12-01 15:20:02,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:20:02,601 INFO L93 Difference]: Finished difference Result 9806 states and 13379 transitions. [2020-12-01 15:20:02,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:20:02,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2020-12-01 15:20:02,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:20:02,614 INFO L225 Difference]: With dead ends: 9806 [2020-12-01 15:20:02,614 INFO L226 Difference]: Without dead ends: 4594 [2020-12-01 15:20:02,622 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 [2020-12-01 15:20:02,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2020-12-01 15:20:02,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4576. [2020-12-01 15:20:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4576 states. [2020-12-01 15:20:02,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 6276 transitions. [2020-12-01 15:20:02,791 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 6276 transitions. Word has length 298 [2020-12-01 15:20:02,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:20:02,792 INFO L481 AbstractCegarLoop]: Abstraction has 4576 states and 6276 transitions. [2020-12-01 15:20:02,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:20:02,792 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 6276 transitions. [2020-12-01 15:20:02,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-01 15:20:02,804 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:20:02,805 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1] [2020-12-01 15:20:02,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-01 15:20:02,805 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:20:02,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:20:02,806 INFO L82 PathProgramCache]: Analyzing trace with hash 977282003, now seen corresponding path program 1 times [2020-12-01 15:20:02,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:20:02,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044149822] [2020-12-01 15:20:02,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:20:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:02,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-12-01 15:20:02,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044149822] [2020-12-01 15:20:02,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480031976] [2020-12-01 15:20:02,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/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 [2020-12-01 15:20:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:03,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:20:03,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:20:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2020-12-01 15:20:03,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:20:03,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-01 15:20:03,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193570709] [2020-12-01 15:20:03,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:20:03,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:20:03,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:20:03,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:20:03,960 INFO L87 Difference]: Start difference. First operand 4576 states and 6276 transitions. Second operand 3 states. [2020-12-01 15:20:04,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:20:04,045 INFO L93 Difference]: Finished difference Result 6867 states and 9400 transitions. [2020-12-01 15:20:04,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:20:04,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-12-01 15:20:04,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:20:04,057 INFO L225 Difference]: With dead ends: 6867 [2020-12-01 15:20:04,057 INFO L226 Difference]: Without dead ends: 4578 [2020-12-01 15:20:04,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:20:04,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2020-12-01 15:20:04,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 4564. [2020-12-01 15:20:04,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2020-12-01 15:20:04,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 6240 transitions. [2020-12-01 15:20:04,193 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 6240 transitions. Word has length 308 [2020-12-01 15:20:04,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:20:04,194 INFO L481 AbstractCegarLoop]: Abstraction has 4564 states and 6240 transitions. [2020-12-01 15:20:04,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:20:04,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 6240 transitions. [2020-12-01 15:20:04,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-01 15:20:04,204 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:20:04,205 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:20:04,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-12-01 15:20:04,429 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:20:04,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:20:04,430 INFO L82 PathProgramCache]: Analyzing trace with hash -828156331, now seen corresponding path program 1 times [2020-12-01 15:20:04,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:20:04,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178227107] [2020-12-01 15:20:04,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:20:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:04,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-12-01 15:20:04,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178227107] [2020-12-01 15:20:04,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729387997] [2020-12-01 15:20:04,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/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 [2020-12-01 15:20:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:04,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:20:04,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:20:05,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-12-01 15:20:05,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:20:05,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-12-01 15:20:05,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027749653] [2020-12-01 15:20:05,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:20:05,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:20:05,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:20:05,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:20:05,342 INFO L87 Difference]: Start difference. First operand 4564 states and 6240 transitions. Second operand 4 states. [2020-12-01 15:20:05,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:20:05,868 INFO L93 Difference]: Finished difference Result 8076 states and 11149 transitions. [2020-12-01 15:20:05,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:20:05,869 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2020-12-01 15:20:05,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:20:05,885 INFO L225 Difference]: With dead ends: 8076 [2020-12-01 15:20:05,885 INFO L226 Difference]: Without dead ends: 5679 [2020-12-01 15:20:05,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:20:05,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2020-12-01 15:20:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 4758. [2020-12-01 15:20:06,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4758 states. [2020-12-01 15:20:06,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 6530 transitions. [2020-12-01 15:20:06,105 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 6530 transitions. Word has length 308 [2020-12-01 15:20:06,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:20:06,106 INFO L481 AbstractCegarLoop]: Abstraction has 4758 states and 6530 transitions. [2020-12-01 15:20:06,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:20:06,107 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 6530 transitions. [2020-12-01 15:20:06,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-12-01 15:20:06,118 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:20:06,119 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:20:06,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:20:06,345 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:20:06,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:20:06,346 INFO L82 PathProgramCache]: Analyzing trace with hash 105807153, now seen corresponding path program 1 times [2020-12-01 15:20:06,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:20:06,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017023904] [2020-12-01 15:20:06,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:20:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:06,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-12-01 15:20:06,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017023904] [2020-12-01 15:20:06,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225933171] [2020-12-01 15:20:06,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/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 [2020-12-01 15:20:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:06,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:20:06,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:20:07,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-12-01 15:20:07,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:20:07,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-12-01 15:20:07,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195247830] [2020-12-01 15:20:07,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:20:07,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:20:07,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:20:07,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:20:07,260 INFO L87 Difference]: Start difference. First operand 4758 states and 6530 transitions. Second operand 4 states. [2020-12-01 15:20:07,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:20:07,619 INFO L93 Difference]: Finished difference Result 6043 states and 8330 transitions. [2020-12-01 15:20:07,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:20:07,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 309 [2020-12-01 15:20:07,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:20:07,627 INFO L225 Difference]: With dead ends: 6043 [2020-12-01 15:20:07,628 INFO L226 Difference]: Without dead ends: 2460 [2020-12-01 15:20:07,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:20:07,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2020-12-01 15:20:07,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2460. [2020-12-01 15:20:07,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2460 states. [2020-12-01 15:20:07,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3389 transitions. [2020-12-01 15:20:07,708 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3389 transitions. Word has length 309 [2020-12-01 15:20:07,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:20:07,708 INFO L481 AbstractCegarLoop]: Abstraction has 2460 states and 3389 transitions. [2020-12-01 15:20:07,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:20:07,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3389 transitions. [2020-12-01 15:20:07,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-12-01 15:20:07,715 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:20:07,716 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:20:07,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-12-01 15:20:07,929 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:20:07,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:20:07,930 INFO L82 PathProgramCache]: Analyzing trace with hash 2136036892, now seen corresponding path program 1 times [2020-12-01 15:20:07,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:20:07,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559308466] [2020-12-01 15:20:07,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:20:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 649 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-12-01 15:20:08,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559308466] [2020-12-01 15:20:08,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688091115] [2020-12-01 15:20:08,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/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 [2020-12-01 15:20:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:20:08,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:20:08,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:20:08,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 649 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-12-01 15:20:08,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:20:08,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-12-01 15:20:08,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907148614] [2020-12-01 15:20:08,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:20:08,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:20:08,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:20:08,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:20:08,695 INFO L87 Difference]: Start difference. First operand 2460 states and 3389 transitions. Second operand 4 states. [2020-12-01 15:20:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:20:08,964 INFO L93 Difference]: Finished difference Result 3515 states and 4790 transitions. [2020-12-01 15:20:08,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:20:08,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 334 [2020-12-01 15:20:08,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:20:08,966 INFO L225 Difference]: With dead ends: 3515 [2020-12-01 15:20:08,966 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:20:08,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:20:08,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:20:08,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:20:08,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:20:08,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:20:08,971 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 334 [2020-12-01 15:20:08,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:20:08,971 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:20:08,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:20:08,971 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:20:08,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:20:09,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:20:09,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:20:09,507 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 61 [2020-12-01 15:20:09,801 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 23 [2020-12-01 15:20:10,093 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 10 [2020-12-01 15:20:10,802 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2020-12-01 15:20:10,834 INFO L262 CegarLoopResult]: For program point L465(lines 465 471) no Hoare annotation was computed. [2020-12-01 15:20:10,835 INFO L265 CegarLoopResult]: At program point L201(lines 200 541) the Hoare annotation is: true [2020-12-01 15:20:10,835 INFO L258 CegarLoopResult]: At program point L135(lines 131 564) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-12-01 15:20:10,835 INFO L262 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-12-01 15:20:10,835 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:20:10,835 INFO L262 CegarLoopResult]: For program point L235(lines 235 240) no Hoare annotation was computed. [2020-12-01 15:20:10,835 INFO L265 CegarLoopResult]: At program point L632(lines 624 634) the Hoare annotation is: true [2020-12-01 15:20:10,836 INFO L262 CegarLoopResult]: For program point L302(lines 302 306) no Hoare annotation was computed. [2020-12-01 15:20:10,836 INFO L262 CegarLoopResult]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2020-12-01 15:20:10,836 INFO L262 CegarLoopResult]: For program point L170(lines 170 551) no Hoare annotation was computed. [2020-12-01 15:20:10,836 INFO L262 CegarLoopResult]: For program point L137(lines 137 562) no Hoare annotation was computed. [2020-12-01 15:20:10,836 INFO L262 CegarLoopResult]: For program point L104(lines 104 573) no Hoare annotation was computed. [2020-12-01 15:20:10,836 INFO L262 CegarLoopResult]: For program point L435(lines 435 439) no Hoare annotation was computed. [2020-12-01 15:20:10,837 INFO L262 CegarLoopResult]: For program point L435-2(lines 205 537) no Hoare annotation was computed. [2020-12-01 15:20:10,837 INFO L265 CegarLoopResult]: At program point L204(lines 203 540) the Hoare annotation is: true [2020-12-01 15:20:10,837 INFO L258 CegarLoopResult]: At program point L171(lines 167 552) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) [2020-12-01 15:20:10,837 INFO L258 CegarLoopResult]: At program point L105(lines 104 573) the Hoare annotation is: (let ((.cse0 (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0))) [2020-12-01 15:20:10,837 INFO L262 CegarLoopResult]: For program point L370(lines 370 374) no Hoare annotation was computed. [2020-12-01 15:20:10,838 INFO L262 CegarLoopResult]: For program point L404(lines 404 409) no Hoare annotation was computed. [2020-12-01 15:20:10,838 INFO L262 CegarLoopResult]: For program point L404-2(lines 404 409) no Hoare annotation was computed. [2020-12-01 15:20:10,838 INFO L262 CegarLoopResult]: For program point L173(lines 173 550) no Hoare annotation was computed. [2020-12-01 15:20:10,838 INFO L262 CegarLoopResult]: For program point L140(lines 140 561) no Hoare annotation was computed. [2020-12-01 15:20:10,838 INFO L262 CegarLoopResult]: For program point L107(lines 107 572) no Hoare annotation was computed. [2020-12-01 15:20:10,838 INFO L258 CegarLoopResult]: At program point L141(lines 137 562) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-12-01 15:20:10,839 INFO L258 CegarLoopResult]: At program point L538(lines 101 604) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= 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)) (.cse5 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4))) (or (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (<= ULTIMATE.start_ssl3_connect_~s__state~0 3) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse0 (not .cse5) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse2 .cse3) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560) .cse1 .cse2 .cse4 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0) .cse5) (and .cse2 (= ULTIMATE.start_ssl3_connect_~s__state~0 4416)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)))) [2020-12-01 15:20:10,839 INFO L262 CegarLoopResult]: For program point L76(lines 76 84) no Hoare annotation was computed. [2020-12-01 15:20:10,839 INFO L265 CegarLoopResult]: At program point L605(lines 100 606) the Hoare annotation is: true [2020-12-01 15:20:10,839 INFO L262 CegarLoopResult]: For program point L176(lines 176 549) no Hoare annotation was computed. [2020-12-01 15:20:10,840 INFO L262 CegarLoopResult]: For program point L143(lines 143 560) no Hoare annotation was computed. [2020-12-01 15:20:10,840 INFO L262 CegarLoopResult]: For program point L110(lines 110 571) no Hoare annotation was computed. [2020-12-01 15:20:10,840 INFO L262 CegarLoopResult]: For program point L375(lines 375 379) no Hoare annotation was computed. [2020-12-01 15:20:10,840 INFO L262 CegarLoopResult]: For program point L375-2(lines 375 379) no Hoare annotation was computed. [2020-12-01 15:20:10,840 INFO L258 CegarLoopResult]: At program point L210(lines 107 572) the Hoare annotation is: (or (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0))) [2020-12-01 15:20:10,840 INFO L258 CegarLoopResult]: At program point L177(lines 173 550) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) [2020-12-01 15:20:10,841 INFO L262 CegarLoopResult]: For program point L574(lines 574 602) no Hoare annotation was computed. [2020-12-01 15:20:10,841 INFO L262 CegarLoopResult]: For program point L79(lines 79 83) no Hoare annotation was computed. [2020-12-01 15:20:10,841 INFO L262 CegarLoopResult]: For program point L79-2(lines 76 84) no Hoare annotation was computed. [2020-12-01 15:20:10,841 INFO L262 CegarLoopResult]: For program point L575(lines 575 599) no Hoare annotation was computed. [2020-12-01 15:20:10,841 INFO L262 CegarLoopResult]: For program point L509-1(lines 205 537) no Hoare annotation was computed. [2020-12-01 15:20:10,841 INFO L262 CegarLoopResult]: For program point L344(lines 344 349) no Hoare annotation was computed. [2020-12-01 15:20:10,842 INFO L262 CegarLoopResult]: For program point L278(lines 278 282) no Hoare annotation was computed. [2020-12-01 15:20:10,842 INFO L262 CegarLoopResult]: For program point L311-1(lines 311 325) no Hoare annotation was computed. [2020-12-01 15:20:10,842 INFO L262 CegarLoopResult]: For program point L179(lines 179 548) no Hoare annotation was computed. [2020-12-01 15:20:10,842 INFO L262 CegarLoopResult]: For program point L146(lines 146 559) no Hoare annotation was computed. [2020-12-01 15:20:10,842 INFO L262 CegarLoopResult]: For program point L113(lines 113 570) no Hoare annotation was computed. [2020-12-01 15:20:10,842 INFO L262 CegarLoopResult]: For program point L609(lines 609 613) no Hoare annotation was computed. [2020-12-01 15:20:10,842 INFO L262 CegarLoopResult]: For program point L576(lines 576 585) no Hoare annotation was computed. [2020-12-01 15:20:10,843 INFO L262 CegarLoopResult]: For program point L609-2(lines 609 613) no Hoare annotation was computed. [2020-12-01 15:20:10,843 INFO L262 CegarLoopResult]: For program point L576-2(lines 575 597) no Hoare annotation was computed. [2020-12-01 15:20:10,843 INFO L258 CegarLoopResult]: At program point L147(lines 143 560) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) [2020-12-01 15:20:10,843 INFO L262 CegarLoopResult]: For program point L578(lines 578 582) no Hoare annotation was computed. [2020-12-01 15:20:10,843 INFO L262 CegarLoopResult]: For program point L446(lines 446 451) no Hoare annotation was computed. [2020-12-01 15:20:10,843 INFO L262 CegarLoopResult]: For program point L215(lines 215 219) no Hoare annotation was computed. [2020-12-01 15:20:10,844 INFO L262 CegarLoopResult]: For program point L182(lines 182 547) no Hoare annotation was computed. [2020-12-01 15:20:10,844 INFO L262 CegarLoopResult]: For program point L149(lines 149 558) no Hoare annotation was computed. [2020-12-01 15:20:10,844 INFO L262 CegarLoopResult]: For program point L215-2(lines 205 537) no Hoare annotation was computed. [2020-12-01 15:20:10,844 INFO L262 CegarLoopResult]: For program point L116(lines 116 569) no Hoare annotation was computed. [2020-12-01 15:20:10,844 INFO L262 CegarLoopResult]: For program point L480(lines 480 484) no Hoare annotation was computed. [2020-12-01 15:20:10,844 INFO L262 CegarLoopResult]: For program point L315(lines 315 319) no Hoare annotation was computed. [2020-12-01 15:20:10,845 INFO L262 CegarLoopResult]: For program point L315-2(lines 313 325) no Hoare annotation was computed. [2020-12-01 15:20:10,845 INFO L258 CegarLoopResult]: At program point L183(lines 179 548) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2020-12-01 15:20:10,845 INFO L262 CegarLoopResult]: For program point L514-1(lines 514 518) no Hoare annotation was computed. [2020-12-01 15:20:10,845 INFO L262 CegarLoopResult]: For program point L415(lines 415 419) no Hoare annotation was computed. [2020-12-01 15:20:10,845 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:20:10,845 INFO L262 CegarLoopResult]: For program point L251(lines 251 256) no Hoare annotation was computed. [2020-12-01 15:20:10,845 INFO L262 CegarLoopResult]: For program point L185(lines 185 546) no Hoare annotation was computed. [2020-12-01 15:20:10,846 INFO L262 CegarLoopResult]: For program point L152(lines 152 557) no Hoare annotation was computed. [2020-12-01 15:20:10,846 INFO L262 CegarLoopResult]: For program point L119(lines 119 568) no Hoare annotation was computed. [2020-12-01 15:20:10,846 INFO L262 CegarLoopResult]: For program point L86(lines 86 94) no Hoare annotation was computed. [2020-12-01 15:20:10,846 INFO L262 CegarLoopResult]: For program point L86-1(lines 68 622) no Hoare annotation was computed. [2020-12-01 15:20:10,846 INFO L258 CegarLoopResult]: At program point L153(lines 149 558) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464)) [2020-12-01 15:20:10,846 INFO L262 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-12-01 15:20:10,847 INFO L262 CegarLoopResult]: For program point L485(lines 485 489) no Hoare annotation was computed. [2020-12-01 15:20:10,847 INFO L262 CegarLoopResult]: For program point L485-2(lines 485 489) no Hoare annotation was computed. [2020-12-01 15:20:10,847 INFO L262 CegarLoopResult]: For program point L287(lines 287 295) no Hoare annotation was computed. [2020-12-01 15:20:10,847 INFO L262 CegarLoopResult]: For program point L188(lines 188 545) no Hoare annotation was computed. [2020-12-01 15:20:10,847 INFO L262 CegarLoopResult]: For program point L155(lines 155 556) no Hoare annotation was computed. [2020-12-01 15:20:10,847 INFO L262 CegarLoopResult]: For program point L122(lines 122 567) no Hoare annotation was computed. [2020-12-01 15:20:10,848 INFO L262 CegarLoopResult]: For program point L387(lines 387 391) no Hoare annotation was computed. [2020-12-01 15:20:10,848 INFO L262 CegarLoopResult]: For program point L354(lines 354 358) no Hoare annotation was computed. [2020-12-01 15:20:10,848 INFO L258 CegarLoopResult]: At program point L189(lines 185 546) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4))) (or (and (not (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) .cse0 .cse1) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560) .cse0 .cse1))) [2020-12-01 15:20:10,848 INFO L258 CegarLoopResult]: At program point L123(lines 119 568) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0 .cse1))) [2020-12-01 15:20:10,848 INFO L258 CegarLoopResult]: At program point L355(lines 68 622) the Hoare annotation is: false [2020-12-01 15:20:10,849 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:20:10,849 INFO L265 CegarLoopResult]: At program point L620(lines 68 622) the Hoare annotation is: true [2020-12-01 15:20:10,849 INFO L262 CegarLoopResult]: For program point L587(lines 587 593) no Hoare annotation was computed. [2020-12-01 15:20:10,849 INFO L262 CegarLoopResult]: For program point L521(lines 521 525) no Hoare annotation was computed. [2020-12-01 15:20:10,849 INFO L262 CegarLoopResult]: For program point L521-2(lines 521 525) no Hoare annotation was computed. [2020-12-01 15:20:10,849 INFO L262 CegarLoopResult]: For program point L290(lines 290 294) no Hoare annotation was computed. [2020-12-01 15:20:10,850 INFO L262 CegarLoopResult]: For program point L290-2(lines 205 537) no Hoare annotation was computed. [2020-12-01 15:20:10,850 INFO L262 CegarLoopResult]: For program point L191(lines 191 544) no Hoare annotation was computed. [2020-12-01 15:20:10,850 INFO L262 CegarLoopResult]: For program point L158(lines 158 555) no Hoare annotation was computed. [2020-12-01 15:20:10,850 INFO L262 CegarLoopResult]: For program point L125(lines 125 566) no Hoare annotation was computed. [2020-12-01 15:20:10,850 INFO L265 CegarLoopResult]: At program point L621(lines 10 623) the Hoare annotation is: true [2020-12-01 15:20:10,850 INFO L262 CegarLoopResult]: For program point L456(lines 456 460) no Hoare annotation was computed. [2020-12-01 15:20:10,850 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:20:10,851 INFO L262 CegarLoopResult]: For program point L359(lines 359 363) no Hoare annotation was computed. [2020-12-01 15:20:10,851 INFO L262 CegarLoopResult]: For program point L227(lines 227 244) no Hoare annotation was computed. [2020-12-01 15:20:10,851 INFO L262 CegarLoopResult]: For program point L194(lines 194 543) no Hoare annotation was computed. [2020-12-01 15:20:10,851 INFO L262 CegarLoopResult]: For program point L161(lines 161 554) no Hoare annotation was computed. [2020-12-01 15:20:10,851 INFO L262 CegarLoopResult]: For program point L227-2(lines 205 537) no Hoare annotation was computed. [2020-12-01 15:20:10,851 INFO L262 CegarLoopResult]: For program point L128(lines 128 565) no Hoare annotation was computed. [2020-12-01 15:20:10,852 INFO L258 CegarLoopResult]: At program point L195(lines 191 544) the Hoare annotation is: (or (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) [2020-12-01 15:20:10,852 INFO L258 CegarLoopResult]: At program point L129(lines 125 566) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2020-12-01 15:20:10,852 INFO L262 CegarLoopResult]: For program point L493-1(lines 493 505) no Hoare annotation was computed. [2020-12-01 15:20:10,852 INFO L262 CegarLoopResult]: For program point L427(lines 427 431) no Hoare annotation was computed. [2020-12-01 15:20:10,852 INFO L262 CegarLoopResult]: For program point L229(lines 229 234) no Hoare annotation was computed. [2020-12-01 15:20:10,853 INFO L262 CegarLoopResult]: For program point L197(lines 197 542) no Hoare annotation was computed. [2020-12-01 15:20:10,853 INFO L262 CegarLoopResult]: For program point L164(lines 164 553) no Hoare annotation was computed. [2020-12-01 15:20:10,853 INFO L262 CegarLoopResult]: For program point L131(lines 131 564) no Hoare annotation was computed. [2020-12-01 15:20:10,853 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:20:10,853 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:20:10,853 INFO L262 CegarLoopResult]: For program point L528(lines 528 532) no Hoare annotation was computed. [2020-12-01 15:20:10,854 INFO L258 CegarLoopResult]: At program point L198(lines 197 542) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (<= 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 (not .cse3) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse1 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-12-01 15:20:10,854 INFO L258 CegarLoopResult]: At program point L165(lines 155 556) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480)) [2020-12-01 15:20:10,854 INFO L262 CegarLoopResult]: For program point L496(lines 496 501) no Hoare annotation was computed. [2020-12-01 15:20:10,854 INFO L262 CegarLoopResult]: For program point L463(lines 463 474) no Hoare annotation was computed. [2020-12-01 15:20:10,854 INFO L262 CegarLoopResult]: For program point L463-1(lines 463 474) no Hoare annotation was computed. [2020-12-01 15:20:10,855 INFO L262 CegarLoopResult]: For program point L265(lines 265 269) no Hoare annotation was computed. [2020-12-01 15:20:10,855 INFO L262 CegarLoopResult]: For program point L265-2(lines 205 537) no Hoare annotation was computed. [2020-12-01 15:20:10,855 INFO L262 CegarLoopResult]: For program point L398(lines 398 402) no Hoare annotation was computed. [2020-12-01 15:20:10,855 INFO L262 CegarLoopResult]: For program point L332(lines 332 336) no Hoare annotation was computed. [2020-12-01 15:20:10,855 INFO L262 CegarLoopResult]: For program point L332-2(lines 205 537) no Hoare annotation was computed. [2020-12-01 15:20:10,855 INFO L262 CegarLoopResult]: For program point L200(lines 200 541) no Hoare annotation was computed. [2020-12-01 15:20:10,855 INFO L262 CegarLoopResult]: For program point L167(lines 167 552) no Hoare annotation was computed. [2020-12-01 15:20:10,856 INFO L262 CegarLoopResult]: For program point L134(lines 134 563) no Hoare annotation was computed. [2020-12-01 15:20:10,856 INFO L262 CegarLoopResult]: For program point L101-1(lines 68 622) no Hoare annotation was computed. [2020-12-01 15:20:10,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:20:10 BoogieIcfgContainer [2020-12-01 15:20:10,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:20:10,881 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:20:10,881 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:20:10,881 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:20:10,882 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:19:53" (3/4) ... [2020-12-01 15:20:10,886 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:20:10,907 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 15:20:10,908 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:20:10,910 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:20:10,911 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:20:11,011 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d8d2aadb-0707-401a-abde-6804f3b7af4f/bin/uautomizer/witness.graphml [2020-12-01 15:20:11,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:20:11,012 INFO L168 Benchmark]: Toolchain (without parser) took 19078.70 ms. Allocated memory was 102.8 MB in the beginning and 836.8 MB in the end (delta: 734.0 MB). Free memory was 76.0 MB in the beginning and 351.0 MB in the end (delta: -275.0 MB). Peak memory consumption was 458.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:11,013 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 102.8 MB. Free memory is still 62.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:20:11,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.74 ms. Allocated memory is still 102.8 MB. Free memory was 75.8 MB in the beginning and 74.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:11,014 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.13 ms. Allocated memory is still 102.8 MB. Free memory was 74.4 MB in the beginning and 71.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:11,014 INFO L168 Benchmark]: Boogie Preprocessor took 93.58 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 69.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:11,015 INFO L168 Benchmark]: RCFGBuilder took 1001.08 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 69.5 MB in the beginning and 88.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:11,015 INFO L168 Benchmark]: TraceAbstraction took 17198.43 ms. Allocated memory was 136.3 MB in the beginning and 836.8 MB in the end (delta: 700.4 MB). Free memory was 88.0 MB in the beginning and 360.4 MB in the end (delta: -272.4 MB). Peak memory consumption was 427.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:11,016 INFO L168 Benchmark]: Witness Printer took 130.21 ms. Allocated memory is still 836.8 MB. Free memory was 360.4 MB in the beginning and 351.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:20:11,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 102.8 MB. Free memory is still 62.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 548.74 ms. Allocated memory is still 102.8 MB. Free memory was 75.8 MB in the beginning and 74.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.13 ms. Allocated memory is still 102.8 MB. Free memory was 74.4 MB in the beginning and 71.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.58 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 69.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1001.08 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 69.5 MB in the beginning and 88.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17198.43 ms. Allocated memory was 136.3 MB in the beginning and 836.8 MB in the end (delta: 700.4 MB). Free memory was 88.0 MB in the beginning and 360.4 MB in the end (delta: -272.4 MB). Peak memory consumption was 427.6 MB. Max. memory is 16.1 GB. * Witness Printer took 130.21 ms. Allocated memory is still 836.8 MB. Free memory was 360.4 MB in the beginning and 351.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 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: 155]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4480 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) || ((blastFlag == 0 && s__state <= 4432) && 4352 <= s__state) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: ((((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && blastFlag <= 4) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag <= 4) && 4352 <= s__state)) || ((s__state <= 4352 && blastFlag == 2) && 4352 <= s__state) - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4512 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (blastFlag == 2 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: blastFlag == 2 || (s__state <= 4352 && blastFlag == 0) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((!(s__hit == 0) && 4432 <= s__state) && blastFlag <= 4) || ((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4448 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: (blastFlag == 2 && 12292 == s__state) || (blastFlag == 0 && 12292 == s__state) - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4512 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: ((s__state <= 4432 && blastFlag == 1) && 4352 <= s__state) || ((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (4432 <= s__state && s__hit == 0) || (blastFlag == 2 && 4560 <= s__state) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((blastFlag == 2 || (((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && blastFlag <= 4) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || s__state <= 3) || ((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4)) || (blastFlag == 1 && s__state == 4384)) || ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag <= 4) && 4352 <= s__state)) || (((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && blastFlag <= 4) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || (blastFlag <= 4 && s__state == 4416)) || (blastFlag == 0 && s__state == 4368) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4464 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 127 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.4s, OverallIterations: 24, TraceHistogramMax: 15, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4609 SDtfs, 1688 SDslu, 2649 SDs, 0 SdLazy, 2114 SolverSat, 533 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1337 GetRequests, 1305 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4774occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 24 MinimizatonAttempts, 1797 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 211 NumberOfFragments, 332 HoareAnnotationTreeSize, 23 FomulaSimplifications, 36166 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 23 FomulaSimplificationsInter, 5216 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 5691 NumberOfCodeBlocks, 5691 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 5663 ConstructedInterpolants, 0 QuantifiedInterpolants, 2088301 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2495 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 28 InterpolantComputations, 21 PerfectInterpolantSequences, 17050/17120 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...