./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be78f24495f6395b0c8bd7d622003423e0349301 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 12:21:03,721 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 12:21:03,722 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 12:21:03,728 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 12:21:03,728 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 12:21:03,729 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 12:21:03,729 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 12:21:03,730 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 12:21:03,731 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 12:21:03,731 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 12:21:03,732 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 12:21:03,732 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 12:21:03,732 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 12:21:03,733 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 12:21:03,733 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 12:21:03,734 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 12:21:03,734 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 12:21:03,735 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 12:21:03,736 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 12:21:03,737 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 12:21:03,737 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 12:21:03,738 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 12:21:03,739 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 12:21:03,739 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 12:21:03,739 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 12:21:03,740 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 12:21:03,740 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 12:21:03,740 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 12:21:03,741 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 12:21:03,741 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 12:21:03,742 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 12:21:03,742 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 12:21:03,742 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 12:21:03,742 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 12:21:03,743 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 12:21:03,743 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 12:21:03,743 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 12:21:03,750 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 12:21:03,750 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 12:21:03,751 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 12:21:03,751 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 12:21:03,752 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 12:21:03,752 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 12:21:03,752 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 12:21:03,752 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 12:21:03,752 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 12:21:03,752 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 12:21:03,752 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 12:21:03,752 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 12:21:03,753 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 12:21:03,753 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 12:21:03,753 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 12:21:03,753 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 12:21:03,753 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 12:21:03,753 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 12:21:03,753 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 12:21:03,753 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 12:21:03,754 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 12:21:03,754 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 12:21:03,754 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 12:21:03,754 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 12:21:03,754 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 12:21:03,754 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 12:21:03,754 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 12:21:03,754 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 12:21:03,755 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 12:21:03,755 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 12:21:03,755 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/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(__VERIFIER_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 -> be78f24495f6395b0c8bd7d622003423e0349301 [2018-12-02 12:21:03,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 12:21:03,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 12:21:03,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 12:21:03,786 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 12:21:03,786 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 12:21:03,786 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i [2018-12-02 12:21:03,831 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer/data/7993e97d4/94c4cbc86d7c4643a5cb464b4263d43d/FLAGdd130ec92 [2018-12-02 12:21:04,284 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 12:21:04,284 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i [2018-12-02 12:21:04,294 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer/data/7993e97d4/94c4cbc86d7c4643a5cb464b4263d43d/FLAGdd130ec92 [2018-12-02 12:21:04,303 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer/data/7993e97d4/94c4cbc86d7c4643a5cb464b4263d43d [2018-12-02 12:21:04,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 12:21:04,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 12:21:04,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 12:21:04,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 12:21:04,309 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 12:21:04,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:21:04" (1/1) ... [2018-12-02 12:21:04,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50978cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04, skipping insertion in model container [2018-12-02 12:21:04,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:21:04" (1/1) ... [2018-12-02 12:21:04,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 12:21:04,346 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 12:21:04,725 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:21:04,775 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 12:21:04,815 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:21:04,945 INFO L195 MainTranslator]: Completed translation [2018-12-02 12:21:04,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04 WrapperNode [2018-12-02 12:21:04,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 12:21:04,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 12:21:04,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 12:21:04,946 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 12:21:04,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04" (1/1) ... [2018-12-02 12:21:04,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04" (1/1) ... [2018-12-02 12:21:04,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 12:21:04,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 12:21:04,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 12:21:04,982 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 12:21:04,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04" (1/1) ... [2018-12-02 12:21:04,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04" (1/1) ... [2018-12-02 12:21:04,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04" (1/1) ... [2018-12-02 12:21:04,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04" (1/1) ... [2018-12-02 12:21:04,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04" (1/1) ... [2018-12-02 12:21:04,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04" (1/1) ... [2018-12-02 12:21:05,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04" (1/1) ... [2018-12-02 12:21:05,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 12:21:05,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 12:21:05,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 12:21:05,004 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 12:21:05,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/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 [2018-12-02 12:21:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 12:21:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 12:21:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 12:21:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 12:21:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 12:21:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 12:21:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-12-02 12:21:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-12-02 12:21:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 12:21:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 12:21:05,036 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-02 12:21:05,386 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 12:21:05,386 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-12-02 12:21:05,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:21:05 BoogieIcfgContainer [2018-12-02 12:21:05,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 12:21:05,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 12:21:05,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 12:21:05,389 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 12:21:05,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:21:04" (1/3) ... [2018-12-02 12:21:05,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55293c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:21:05, skipping insertion in model container [2018-12-02 12:21:05,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:04" (2/3) ... [2018-12-02 12:21:05,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55293c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:21:05, skipping insertion in model container [2018-12-02 12:21:05,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:21:05" (3/3) ... [2018-12-02 12:21:05,391 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global_false-unreach-call.i [2018-12-02 12:21:05,411 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,411 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,412 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,413 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,413 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,413 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,413 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,413 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,413 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,413 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,413 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,413 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,414 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,414 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,414 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,414 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,414 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,414 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,414 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,414 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,414 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,415 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,415 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,415 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,415 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,415 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,415 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,415 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,415 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,415 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,416 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,416 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,416 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,416 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,416 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,416 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,416 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,416 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 12:21:05,429 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-02 12:21:05,430 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 12:21:05,435 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-12-02 12:21:05,446 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-12-02 12:21:05,463 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 12:21:05,464 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 12:21:05,464 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 12:21:05,464 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 12:21:05,464 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 12:21:05,464 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 12:21:05,465 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 12:21:05,465 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 12:21:05,465 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 12:21:05,475 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 137places, 145 transitions [2018-12-02 12:21:05,579 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4725 states. [2018-12-02 12:21:05,581 INFO L276 IsEmpty]: Start isEmpty. Operand 4725 states. [2018-12-02 12:21:05,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-02 12:21:05,586 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:05,586 INFO L402 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, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:05,588 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:05,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:05,592 INFO L82 PathProgramCache]: Analyzing trace with hash 441784776, now seen corresponding path program 1 times [2018-12-02 12:21:05,593 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:05,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:05,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:05,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:05,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:05,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:05,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:05,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 12:21:05,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 12:21:05,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 12:21:05,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 12:21:05,845 INFO L87 Difference]: Start difference. First operand 4725 states. Second operand 6 states. [2018-12-02 12:21:06,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:06,103 INFO L93 Difference]: Finished difference Result 4724 states and 12876 transitions. [2018-12-02 12:21:06,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 12:21:06,104 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-12-02 12:21:06,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:06,123 INFO L225 Difference]: With dead ends: 4724 [2018-12-02 12:21:06,123 INFO L226 Difference]: Without dead ends: 3864 [2018-12-02 12:21:06,124 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-12-02 12:21:06,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2018-12-02 12:21:06,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3863. [2018-12-02 12:21:06,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3863 states. [2018-12-02 12:21:06,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3863 states to 3863 states and 10474 transitions. [2018-12-02 12:21:06,236 INFO L78 Accepts]: Start accepts. Automaton has 3863 states and 10474 transitions. Word has length 31 [2018-12-02 12:21:06,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:06,236 INFO L480 AbstractCegarLoop]: Abstraction has 3863 states and 10474 transitions. [2018-12-02 12:21:06,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 12:21:06,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3863 states and 10474 transitions. [2018-12-02 12:21:06,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-02 12:21:06,237 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:06,237 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:06,237 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:06,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:06,238 INFO L82 PathProgramCache]: Analyzing trace with hash -804856226, now seen corresponding path program 1 times [2018-12-02 12:21:06,238 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:06,238 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:06,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:06,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:06,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:06,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:06,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:06,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 12:21:06,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 12:21:06,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 12:21:06,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-02 12:21:06,453 INFO L87 Difference]: Start difference. First operand 3863 states and 10474 transitions. Second operand 8 states. [2018-12-02 12:21:06,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:06,878 INFO L93 Difference]: Finished difference Result 3865 states and 10476 transitions. [2018-12-02 12:21:06,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 12:21:06,878 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-12-02 12:21:06,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:06,885 INFO L225 Difference]: With dead ends: 3865 [2018-12-02 12:21:06,886 INFO L226 Difference]: Without dead ends: 3865 [2018-12-02 12:21:06,886 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2018-12-02 12:21:06,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3865 states. [2018-12-02 12:21:06,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3865 to 3861. [2018-12-02 12:21:06,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3861 states. [2018-12-02 12:21:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 10472 transitions. [2018-12-02 12:21:06,937 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 10472 transitions. Word has length 37 [2018-12-02 12:21:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:06,938 INFO L480 AbstractCegarLoop]: Abstraction has 3861 states and 10472 transitions. [2018-12-02 12:21:06,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 12:21:06,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 10472 transitions. [2018-12-02 12:21:06,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-02 12:21:06,939 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:06,939 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:06,940 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:06,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:06,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1378309502, now seen corresponding path program 1 times [2018-12-02 12:21:06,940 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:06,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:06,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:06,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:06,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:07,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:07,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:07,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 12:21:07,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 12:21:07,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 12:21:07,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 12:21:07,072 INFO L87 Difference]: Start difference. First operand 3861 states and 10472 transitions. Second operand 8 states. [2018-12-02 12:21:07,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:07,758 INFO L93 Difference]: Finished difference Result 5825 states and 15810 transitions. [2018-12-02 12:21:07,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 12:21:07,759 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2018-12-02 12:21:07,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:07,774 INFO L225 Difference]: With dead ends: 5825 [2018-12-02 12:21:07,774 INFO L226 Difference]: Without dead ends: 5825 [2018-12-02 12:21:07,775 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:21:07,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5825 states. [2018-12-02 12:21:07,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5825 to 4385. [2018-12-02 12:21:07,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4385 states. [2018-12-02 12:21:07,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4385 states to 4385 states and 11916 transitions. [2018-12-02 12:21:07,855 INFO L78 Accepts]: Start accepts. Automaton has 4385 states and 11916 transitions. Word has length 55 [2018-12-02 12:21:07,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:07,855 INFO L480 AbstractCegarLoop]: Abstraction has 4385 states and 11916 transitions. [2018-12-02 12:21:07,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 12:21:07,855 INFO L276 IsEmpty]: Start isEmpty. Operand 4385 states and 11916 transitions. [2018-12-02 12:21:07,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-02 12:21:07,858 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:07,858 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:07,858 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:07,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:07,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1957942992, now seen corresponding path program 1 times [2018-12-02 12:21:07,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:07,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:07,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:07,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:07,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:07,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:07,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:07,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 12:21:07,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 12:21:07,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 12:21:07,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 12:21:07,982 INFO L87 Difference]: Start difference. First operand 4385 states and 11916 transitions. Second operand 8 states. [2018-12-02 12:21:08,619 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2018-12-02 12:21:08,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:08,973 INFO L93 Difference]: Finished difference Result 6349 states and 17158 transitions. [2018-12-02 12:21:08,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-02 12:21:08,974 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2018-12-02 12:21:08,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:08,992 INFO L225 Difference]: With dead ends: 6349 [2018-12-02 12:21:08,993 INFO L226 Difference]: Without dead ends: 5317 [2018-12-02 12:21:08,993 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2018-12-02 12:21:09,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5317 states. [2018-12-02 12:21:09,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5317 to 5125. [2018-12-02 12:21:09,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5125 states. [2018-12-02 12:21:09,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 13985 transitions. [2018-12-02 12:21:09,087 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 13985 transitions. Word has length 61 [2018-12-02 12:21:09,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:09,087 INFO L480 AbstractCegarLoop]: Abstraction has 5125 states and 13985 transitions. [2018-12-02 12:21:09,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 12:21:09,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 13985 transitions. [2018-12-02 12:21:09,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-02 12:21:09,093 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:09,093 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:09,093 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:09,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:09,094 INFO L82 PathProgramCache]: Analyzing trace with hash 2138401985, now seen corresponding path program 1 times [2018-12-02 12:21:09,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:09,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:09,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:09,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:09,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:09,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:09,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 12:21:09,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 12:21:09,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 12:21:09,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 12:21:09,158 INFO L87 Difference]: Start difference. First operand 5125 states and 13985 transitions. Second operand 5 states. [2018-12-02 12:21:09,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:09,206 INFO L93 Difference]: Finished difference Result 1780 states and 4650 transitions. [2018-12-02 12:21:09,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 12:21:09,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2018-12-02 12:21:09,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:09,210 INFO L225 Difference]: With dead ends: 1780 [2018-12-02 12:21:09,210 INFO L226 Difference]: Without dead ends: 1780 [2018-12-02 12:21:09,210 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-02 12:21:09,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2018-12-02 12:21:09,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1780. [2018-12-02 12:21:09,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1780 states. [2018-12-02 12:21:09,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 4650 transitions. [2018-12-02 12:21:09,235 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 4650 transitions. Word has length 67 [2018-12-02 12:21:09,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:09,236 INFO L480 AbstractCegarLoop]: Abstraction has 1780 states and 4650 transitions. [2018-12-02 12:21:09,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 12:21:09,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 4650 transitions. [2018-12-02 12:21:09,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:21:09,240 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:09,240 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:09,240 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:09,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:09,241 INFO L82 PathProgramCache]: Analyzing trace with hash -379051754, now seen corresponding path program 1 times [2018-12-02 12:21:09,241 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:09,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:09,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:09,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:09,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:09,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:09,939 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:09,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-12-02 12:21:09,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-02 12:21:09,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-02 12:21:09,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-12-02 12:21:09,939 INFO L87 Difference]: Start difference. First operand 1780 states and 4650 transitions. Second operand 18 states. [2018-12-02 12:21:10,795 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2018-12-02 12:21:10,952 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2018-12-02 12:21:11,139 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2018-12-02 12:21:11,619 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-02 12:21:11,751 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-02 12:21:12,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:12,369 INFO L93 Difference]: Finished difference Result 2172 states and 5448 transitions. [2018-12-02 12:21:12,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-02 12:21:12,369 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 96 [2018-12-02 12:21:12,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:12,371 INFO L225 Difference]: With dead ends: 2172 [2018-12-02 12:21:12,371 INFO L226 Difference]: Without dead ends: 2172 [2018-12-02 12:21:12,372 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=337, Invalid=923, Unknown=0, NotChecked=0, Total=1260 [2018-12-02 12:21:12,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2018-12-02 12:21:12,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 1942. [2018-12-02 12:21:12,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1942 states. [2018-12-02 12:21:12,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 4978 transitions. [2018-12-02 12:21:12,387 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 4978 transitions. Word has length 96 [2018-12-02 12:21:12,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:12,388 INFO L480 AbstractCegarLoop]: Abstraction has 1942 states and 4978 transitions. [2018-12-02 12:21:12,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-02 12:21:12,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 4978 transitions. [2018-12-02 12:21:12,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:21:12,390 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:12,390 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:12,390 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:12,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:12,391 INFO L82 PathProgramCache]: Analyzing trace with hash 910623962, now seen corresponding path program 2 times [2018-12-02 12:21:12,391 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:12,391 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:12,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:12,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:12,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:13,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:13,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-12-02 12:21:13,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-02 12:21:13,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-02 12:21:13,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2018-12-02 12:21:13,090 INFO L87 Difference]: Start difference. First operand 1942 states and 4978 transitions. Second operand 20 states. [2018-12-02 12:21:13,897 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2018-12-02 12:21:14,021 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-12-02 12:21:14,206 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-12-02 12:21:14,403 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-02 12:21:14,558 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-02 12:21:14,913 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2018-12-02 12:21:15,092 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2018-12-02 12:21:15,265 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2018-12-02 12:21:15,422 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-02 12:21:15,585 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-02 12:21:15,749 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:21:15,949 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-02 12:21:16,125 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-02 12:21:16,318 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-02 12:21:16,694 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-12-02 12:21:16,906 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-12-02 12:21:17,067 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:21:17,193 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2018-12-02 12:21:17,542 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2018-12-02 12:21:17,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:17,782 INFO L93 Difference]: Finished difference Result 2544 states and 6190 transitions. [2018-12-02 12:21:17,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-12-02 12:21:17,783 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 96 [2018-12-02 12:21:17,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:17,785 INFO L225 Difference]: With dead ends: 2544 [2018-12-02 12:21:17,785 INFO L226 Difference]: Without dead ends: 2544 [2018-12-02 12:21:17,786 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=632, Invalid=1624, Unknown=0, NotChecked=0, Total=2256 [2018-12-02 12:21:17,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2018-12-02 12:21:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 1915. [2018-12-02 12:21:17,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1915 states. [2018-12-02 12:21:17,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 4915 transitions. [2018-12-02 12:21:17,804 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 4915 transitions. Word has length 96 [2018-12-02 12:21:17,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:17,804 INFO L480 AbstractCegarLoop]: Abstraction has 1915 states and 4915 transitions. [2018-12-02 12:21:17,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-02 12:21:17,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 4915 transitions. [2018-12-02 12:21:17,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:21:17,806 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:17,806 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:17,807 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:17,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:17,807 INFO L82 PathProgramCache]: Analyzing trace with hash -321205186, now seen corresponding path program 3 times [2018-12-02 12:21:17,807 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:17,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:17,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:17,812 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:21:17,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:18,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:18,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:18,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-12-02 12:21:18,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-02 12:21:18,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-02 12:21:18,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-12-02 12:21:18,418 INFO L87 Difference]: Start difference. First operand 1915 states and 4915 transitions. Second operand 18 states. [2018-12-02 12:21:18,963 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2018-12-02 12:21:19,233 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2018-12-02 12:21:19,371 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2018-12-02 12:21:19,664 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-12-02 12:21:19,833 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-12-02 12:21:20,138 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-12-02 12:21:20,285 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:21:20,410 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2018-12-02 12:21:20,732 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2018-12-02 12:21:20,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:20,950 INFO L93 Difference]: Finished difference Result 2557 states and 6323 transitions. [2018-12-02 12:21:20,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-12-02 12:21:20,950 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 96 [2018-12-02 12:21:20,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:20,953 INFO L225 Difference]: With dead ends: 2557 [2018-12-02 12:21:20,953 INFO L226 Difference]: Without dead ends: 2557 [2018-12-02 12:21:20,953 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=359, Invalid=901, Unknown=0, NotChecked=0, Total=1260 [2018-12-02 12:21:20,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2018-12-02 12:21:20,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2152. [2018-12-02 12:21:20,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2152 states. [2018-12-02 12:21:20,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2152 states to 2152 states and 5534 transitions. [2018-12-02 12:21:20,974 INFO L78 Accepts]: Start accepts. Automaton has 2152 states and 5534 transitions. Word has length 96 [2018-12-02 12:21:20,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:20,975 INFO L480 AbstractCegarLoop]: Abstraction has 2152 states and 5534 transitions. [2018-12-02 12:21:20,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-02 12:21:20,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2152 states and 5534 transitions. [2018-12-02 12:21:20,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:21:20,976 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:20,977 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:20,977 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:20,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:20,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1348243034, now seen corresponding path program 4 times [2018-12-02 12:21:20,977 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:20,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:20,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:20,981 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:21:20,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:21,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:21,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:21:21,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:21:21,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:21:21,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:21:21,938 INFO L87 Difference]: Start difference. First operand 2152 states and 5534 transitions. Second operand 21 states. [2018-12-02 12:21:22,639 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:21:22,787 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-02 12:21:22,949 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-12-02 12:21:23,403 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-12-02 12:21:23,577 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2018-12-02 12:21:23,821 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-12-02 12:21:24,016 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-12-02 12:21:24,217 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-12-02 12:21:24,439 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2018-12-02 12:21:24,852 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-12-02 12:21:25,035 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-02 12:21:25,179 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-12-02 12:21:25,578 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:21:25,827 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2018-12-02 12:21:25,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:25,842 INFO L93 Difference]: Finished difference Result 3287 states and 7934 transitions. [2018-12-02 12:21:25,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-02 12:21:25,842 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:21:25,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:25,844 INFO L225 Difference]: With dead ends: 3287 [2018-12-02 12:21:25,844 INFO L226 Difference]: Without dead ends: 3287 [2018-12-02 12:21:25,845 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=486, Invalid=1320, Unknown=0, NotChecked=0, Total=1806 [2018-12-02 12:21:25,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2018-12-02 12:21:25,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 2329. [2018-12-02 12:21:25,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2329 states. [2018-12-02 12:21:25,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 5985 transitions. [2018-12-02 12:21:25,865 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 5985 transitions. Word has length 96 [2018-12-02 12:21:25,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:25,865 INFO L480 AbstractCegarLoop]: Abstraction has 2329 states and 5985 transitions. [2018-12-02 12:21:25,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:21:25,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 5985 transitions. [2018-12-02 12:21:25,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:21:25,867 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:25,867 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:25,867 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:25,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:25,868 INFO L82 PathProgramCache]: Analyzing trace with hash -2015629282, now seen corresponding path program 5 times [2018-12-02 12:21:25,868 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:25,868 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:25,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:25,872 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:21:25,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:26,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:26,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:21:26,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:21:26,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:21:26,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:21:26,862 INFO L87 Difference]: Start difference. First operand 2329 states and 5985 transitions. Second operand 21 states. [2018-12-02 12:21:27,541 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:21:27,697 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-02 12:21:27,859 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-12-02 12:21:28,114 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2018-12-02 12:21:28,301 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-02 12:21:28,754 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-12-02 12:21:28,990 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-12-02 12:21:29,177 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-12-02 12:21:29,389 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-12-02 12:21:29,613 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2018-12-02 12:21:30,025 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-02 12:21:30,218 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-12-02 12:21:30,446 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2018-12-02 12:21:30,707 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-02 12:21:30,860 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-12-02 12:21:31,097 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-12-02 12:21:31,434 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2018-12-02 12:21:31,632 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:21:32,016 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2018-12-02 12:21:32,331 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2018-12-02 12:21:32,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:32,373 INFO L93 Difference]: Finished difference Result 5310 states and 12783 transitions. [2018-12-02 12:21:32,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-02 12:21:32,374 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:21:32,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:32,390 INFO L225 Difference]: With dead ends: 5310 [2018-12-02 12:21:32,390 INFO L226 Difference]: Without dead ends: 5310 [2018-12-02 12:21:32,391 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=665, Invalid=1785, Unknown=0, NotChecked=0, Total=2450 [2018-12-02 12:21:32,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5310 states. [2018-12-02 12:21:32,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5310 to 2362. [2018-12-02 12:21:32,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2018-12-02 12:21:32,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 6084 transitions. [2018-12-02 12:21:32,427 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 6084 transitions. Word has length 96 [2018-12-02 12:21:32,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:32,428 INFO L480 AbstractCegarLoop]: Abstraction has 2362 states and 6084 transitions. [2018-12-02 12:21:32,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:21:32,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 6084 transitions. [2018-12-02 12:21:32,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:21:32,429 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:32,429 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:32,430 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:32,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:32,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1029321370, now seen corresponding path program 6 times [2018-12-02 12:21:32,430 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:32,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:32,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:32,433 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:21:32,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:33,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:33,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:33,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:21:33,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:21:33,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:21:33,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:21:33,318 INFO L87 Difference]: Start difference. First operand 2362 states and 6084 transitions. Second operand 21 states. [2018-12-02 12:21:34,049 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:21:34,213 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-02 12:21:34,379 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-12-02 12:21:34,654 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2018-12-02 12:21:34,847 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-02 12:21:35,040 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-12-02 12:21:35,273 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-02 12:21:35,690 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-12-02 12:21:35,937 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-02 12:21:36,143 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2018-12-02 12:21:36,367 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2018-12-02 12:21:36,800 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2018-12-02 12:21:36,986 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-12-02 12:21:37,192 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2018-12-02 12:21:37,406 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-02 12:21:37,624 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-12-02 12:21:37,767 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-12-02 12:21:37,982 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2018-12-02 12:21:38,189 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:21:38,346 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-02 12:21:38,490 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2018-12-02 12:21:38,728 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-02 12:21:38,866 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2018-12-02 12:21:38,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:38,881 INFO L93 Difference]: Finished difference Result 4637 states and 11344 transitions. [2018-12-02 12:21:38,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-12-02 12:21:38,882 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:21:38,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:38,885 INFO L225 Difference]: With dead ends: 4637 [2018-12-02 12:21:38,885 INFO L226 Difference]: Without dead ends: 4637 [2018-12-02 12:21:38,886 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=651, Invalid=1701, Unknown=0, NotChecked=0, Total=2352 [2018-12-02 12:21:38,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2018-12-02 12:21:38,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 2461. [2018-12-02 12:21:38,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2461 states. [2018-12-02 12:21:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 6381 transitions. [2018-12-02 12:21:38,915 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 6381 transitions. Word has length 96 [2018-12-02 12:21:38,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:38,915 INFO L480 AbstractCegarLoop]: Abstraction has 2461 states and 6381 transitions. [2018-12-02 12:21:38,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:21:38,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 6381 transitions. [2018-12-02 12:21:38,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:21:38,917 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:38,917 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:38,917 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:38,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:38,917 INFO L82 PathProgramCache]: Analyzing trace with hash 192579202, now seen corresponding path program 7 times [2018-12-02 12:21:38,917 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:38,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:38,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:38,921 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:21:38,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:39,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:39,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:39,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:21:39,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:21:39,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:21:39,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:21:39,852 INFO L87 Difference]: Start difference. First operand 2461 states and 6381 transitions. Second operand 21 states. [2018-12-02 12:21:40,305 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-12-02 12:21:40,650 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-02 12:21:40,787 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:21:41,052 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-02 12:21:41,232 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-12-02 12:21:41,531 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2018-12-02 12:21:41,820 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-12-02 12:21:42,023 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-12-02 12:21:42,226 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-12-02 12:21:42,589 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2018-12-02 12:21:43,396 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-02 12:21:43,571 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-02 12:21:43,867 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-02 12:21:44,077 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-02 12:21:44,381 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-02 12:21:44,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:44,637 INFO L93 Difference]: Finished difference Result 3589 states and 8624 transitions. [2018-12-02 12:21:44,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-02 12:21:44,637 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:21:44,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:44,639 INFO L225 Difference]: With dead ends: 3589 [2018-12-02 12:21:44,640 INFO L226 Difference]: Without dead ends: 3589 [2018-12-02 12:21:44,640 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=474, Invalid=1332, Unknown=0, NotChecked=0, Total=1806 [2018-12-02 12:21:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3589 states. [2018-12-02 12:21:44,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3589 to 2488. [2018-12-02 12:21:44,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2018-12-02 12:21:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 6444 transitions. [2018-12-02 12:21:44,661 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 6444 transitions. Word has length 96 [2018-12-02 12:21:44,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:44,662 INFO L480 AbstractCegarLoop]: Abstraction has 2488 states and 6444 transitions. [2018-12-02 12:21:44,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:21:44,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 6444 transitions. [2018-12-02 12:21:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:21:44,664 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:44,664 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:44,664 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:44,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:44,664 INFO L82 PathProgramCache]: Analyzing trace with hash -700552942, now seen corresponding path program 8 times [2018-12-02 12:21:44,664 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:44,664 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:44,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:44,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:44,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:45,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:45,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:21:45,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:21:45,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:21:45,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:21:45,568 INFO L87 Difference]: Start difference. First operand 2488 states and 6444 transitions. Second operand 21 states. [2018-12-02 12:21:46,200 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-02 12:21:46,376 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:21:46,795 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-02 12:21:47,039 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:21:47,221 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-12-02 12:21:47,425 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-02 12:21:47,630 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-12-02 12:21:47,903 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-12-02 12:21:48,305 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-02 12:21:48,466 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-02 12:21:48,625 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-02 12:21:48,827 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-02 12:21:49,136 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-02 12:21:49,326 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2018-12-02 12:21:49,488 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2018-12-02 12:21:49,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:49,534 INFO L93 Difference]: Finished difference Result 3752 states and 8953 transitions. [2018-12-02 12:21:49,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:21:49,534 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:21:49,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:49,538 INFO L225 Difference]: With dead ends: 3752 [2018-12-02 12:21:49,538 INFO L226 Difference]: Without dead ends: 3752 [2018-12-02 12:21:49,539 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=444, Invalid=1278, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:21:49,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2018-12-02 12:21:49,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 2490. [2018-12-02 12:21:49,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2490 states. [2018-12-02 12:21:49,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 6449 transitions. [2018-12-02 12:21:49,574 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 6449 transitions. Word has length 96 [2018-12-02 12:21:49,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:49,574 INFO L480 AbstractCegarLoop]: Abstraction has 2490 states and 6449 transitions. [2018-12-02 12:21:49,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:21:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 6449 transitions. [2018-12-02 12:21:49,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:21:49,577 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:49,577 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:49,577 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:49,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:49,577 INFO L82 PathProgramCache]: Analyzing trace with hash -777509772, now seen corresponding path program 9 times [2018-12-02 12:21:49,577 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:49,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:49,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:49,581 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:21:49,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:50,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:50,509 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:50,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:21:50,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:21:50,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:21:50,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:21:50,510 INFO L87 Difference]: Start difference. First operand 2490 states and 6449 transitions. Second operand 21 states. [2018-12-02 12:21:51,255 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:21:51,717 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-12-02 12:21:51,908 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:21:52,113 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-02 12:21:52,323 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-02 12:21:52,529 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-02 12:21:52,767 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-12-02 12:21:53,183 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-02 12:21:53,342 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-02 12:21:53,510 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-02 12:21:53,634 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-02 12:21:54,002 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-02 12:21:54,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:54,250 INFO L93 Difference]: Finished difference Result 3457 states and 8359 transitions. [2018-12-02 12:21:54,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:21:54,250 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:21:54,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:54,252 INFO L225 Difference]: With dead ends: 3457 [2018-12-02 12:21:54,253 INFO L226 Difference]: Without dead ends: 3457 [2018-12-02 12:21:54,253 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=445, Invalid=1277, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:21:54,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2018-12-02 12:21:54,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 2496. [2018-12-02 12:21:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2018-12-02 12:21:54,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 6464 transitions. [2018-12-02 12:21:54,280 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 6464 transitions. Word has length 96 [2018-12-02 12:21:54,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:54,280 INFO L480 AbstractCegarLoop]: Abstraction has 2496 states and 6464 transitions. [2018-12-02 12:21:54,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:21:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 6464 transitions. [2018-12-02 12:21:54,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:21:54,283 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:54,283 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:54,283 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:54,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:54,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1591289982, now seen corresponding path program 10 times [2018-12-02 12:21:54,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:54,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:54,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:54,288 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:21:54,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:55,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:55,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:55,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:21:55,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:21:55,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:21:55,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:21:55,186 INFO L87 Difference]: Start difference. First operand 2496 states and 6464 transitions. Second operand 21 states. [2018-12-02 12:21:55,944 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:21:56,170 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-02 12:21:56,356 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-12-02 12:21:56,586 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2018-12-02 12:21:57,034 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2018-12-02 12:21:57,255 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2018-12-02 12:21:57,480 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-12-02 12:21:57,722 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2018-12-02 12:21:58,176 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-12-02 12:21:58,362 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-12-02 12:21:58,525 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2018-12-02 12:21:58,775 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-12-02 12:21:58,966 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2018-12-02 12:21:59,251 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-12-02 12:21:59,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:59,265 INFO L93 Difference]: Finished difference Result 5854 states and 14349 transitions. [2018-12-02 12:21:59,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:21:59,266 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:21:59,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:59,269 INFO L225 Difference]: With dead ends: 5854 [2018-12-02 12:21:59,269 INFO L226 Difference]: Without dead ends: 5854 [2018-12-02 12:21:59,270 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=466, Invalid=1256, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:21:59,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5854 states. [2018-12-02 12:21:59,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5854 to 2540. [2018-12-02 12:21:59,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2540 states. [2018-12-02 12:21:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6596 transitions. [2018-12-02 12:21:59,299 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6596 transitions. Word has length 96 [2018-12-02 12:21:59,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:59,299 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6596 transitions. [2018-12-02 12:21:59,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:21:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6596 transitions. [2018-12-02 12:21:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:21:59,301 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:59,302 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:59,302 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:59,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:59,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1453660670, now seen corresponding path program 11 times [2018-12-02 12:21:59,302 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:21:59,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:21:59,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:59,306 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:21:59,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:00,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:00,518 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:00,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:00,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:00,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:00,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:00,519 INFO L87 Difference]: Start difference. First operand 2540 states and 6596 transitions. Second operand 21 states. [2018-12-02 12:22:01,291 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:22:01,535 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-02 12:22:01,740 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-12-02 12:22:02,007 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2018-12-02 12:22:02,248 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2018-12-02 12:22:02,486 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2018-12-02 12:22:03,025 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-02 12:22:03,223 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-12-02 12:22:03,454 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2018-12-02 12:22:03,984 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2018-12-02 12:22:04,177 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-12-02 12:22:04,384 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2018-12-02 12:22:04,561 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-12-02 12:22:04,780 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2018-12-02 12:22:04,949 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2018-12-02 12:22:05,157 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2018-12-02 12:22:05,328 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2018-12-02 12:22:05,644 WARN L180 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-02 12:22:05,927 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2018-12-02 12:22:06,061 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-12-02 12:22:06,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:22:06,072 INFO L93 Difference]: Finished difference Result 6960 states and 17185 transitions. [2018-12-02 12:22:06,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-12-02 12:22:06,072 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:22:06,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:22:06,077 INFO L225 Difference]: With dead ends: 6960 [2018-12-02 12:22:06,077 INFO L226 Difference]: Without dead ends: 6960 [2018-12-02 12:22:06,077 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2018-12-02 12:22:06,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2018-12-02 12:22:06,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 2507. [2018-12-02 12:22:06,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2507 states. [2018-12-02 12:22:06,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 6497 transitions. [2018-12-02 12:22:06,112 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 6497 transitions. Word has length 96 [2018-12-02 12:22:06,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:22:06,112 INFO L480 AbstractCegarLoop]: Abstraction has 2507 states and 6497 transitions. [2018-12-02 12:22:06,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:22:06,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 6497 transitions. [2018-12-02 12:22:06,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:22:06,114 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:22:06,114 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:22:06,114 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:22:06,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:22:06,114 INFO L82 PathProgramCache]: Analyzing trace with hash 651198670, now seen corresponding path program 12 times [2018-12-02 12:22:06,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:22:06,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:22:06,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:06,117 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:22:06,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:07,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:07,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:07,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:07,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:07,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:07,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:07,196 INFO L87 Difference]: Start difference. First operand 2507 states and 6497 transitions. Second operand 21 states. [2018-12-02 12:22:07,709 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-12-02 12:22:08,045 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:22:08,264 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-02 12:22:08,584 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:22:08,766 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-12-02 12:22:08,967 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-02 12:22:09,167 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-12-02 12:22:09,393 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-12-02 12:22:09,844 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2018-12-02 12:22:10,079 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2018-12-02 12:22:10,251 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2018-12-02 12:22:10,496 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2018-12-02 12:22:10,823 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2018-12-02 12:22:11,003 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2018-12-02 12:22:11,209 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2018-12-02 12:22:11,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:22:11,233 INFO L93 Difference]: Finished difference Result 4983 states and 12154 transitions. [2018-12-02 12:22:11,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:22:11,234 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:22:11,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:22:11,237 INFO L225 Difference]: With dead ends: 4983 [2018-12-02 12:22:11,237 INFO L226 Difference]: Without dead ends: 4983 [2018-12-02 12:22:11,237 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=455, Invalid=1267, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:22:11,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4983 states. [2018-12-02 12:22:11,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4983 to 2509. [2018-12-02 12:22:11,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2509 states. [2018-12-02 12:22:11,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 6502 transitions. [2018-12-02 12:22:11,268 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 6502 transitions. Word has length 96 [2018-12-02 12:22:11,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:22:11,268 INFO L480 AbstractCegarLoop]: Abstraction has 2509 states and 6502 transitions. [2018-12-02 12:22:11,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:22:11,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 6502 transitions. [2018-12-02 12:22:11,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:22:11,269 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:22:11,269 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:22:11,270 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:22:11,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:22:11,270 INFO L82 PathProgramCache]: Analyzing trace with hash 574241840, now seen corresponding path program 13 times [2018-12-02 12:22:11,270 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:22:11,270 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:22:11,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:11,273 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:22:11,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:12,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:12,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:12,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:12,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:12,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:12,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:12,180 INFO L87 Difference]: Start difference. First operand 2509 states and 6502 transitions. Second operand 21 states. [2018-12-02 12:22:12,891 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:22:13,116 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-12-02 12:22:13,444 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-12-02 12:22:13,647 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-02 12:22:13,857 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-02 12:22:14,056 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-02 12:22:14,294 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-12-02 12:22:14,756 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2018-12-02 12:22:14,943 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-12-02 12:22:15,124 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-12-02 12:22:15,269 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2018-12-02 12:22:15,666 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-12-02 12:22:15,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:22:15,948 INFO L93 Difference]: Finished difference Result 4880 states and 11957 transitions. [2018-12-02 12:22:15,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:22:15,948 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:22:15,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:22:15,951 INFO L225 Difference]: With dead ends: 4880 [2018-12-02 12:22:15,951 INFO L226 Difference]: Without dead ends: 4880 [2018-12-02 12:22:15,951 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=456, Invalid=1266, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:22:15,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4880 states. [2018-12-02 12:22:15,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4880 to 2507. [2018-12-02 12:22:15,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2507 states. [2018-12-02 12:22:15,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 6497 transitions. [2018-12-02 12:22:15,976 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 6497 transitions. Word has length 96 [2018-12-02 12:22:15,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:22:15,976 INFO L480 AbstractCegarLoop]: Abstraction has 2507 states and 6497 transitions. [2018-12-02 12:22:15,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:22:15,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 6497 transitions. [2018-12-02 12:22:15,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:22:15,978 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:22:15,978 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:22:15,978 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:22:15,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:22:15,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1634464528, now seen corresponding path program 14 times [2018-12-02 12:22:15,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:22:15,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:22:15,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:15,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:22:15,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:16,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:16,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:16,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:16,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:16,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:16,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:16,889 INFO L87 Difference]: Start difference. First operand 2507 states and 6497 transitions. Second operand 21 states. [2018-12-02 12:22:17,692 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:22:17,968 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-12-02 12:22:18,200 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2018-12-02 12:22:18,413 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-02 12:22:18,606 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-02 12:22:18,854 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2018-12-02 12:22:19,362 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-12-02 12:22:19,576 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-12-02 12:22:19,803 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-12-02 12:22:20,372 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2018-12-02 12:22:20,585 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2018-12-02 12:22:20,786 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2018-12-02 12:22:21,002 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-12-02 12:22:21,181 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2018-12-02 12:22:21,373 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2018-12-02 12:22:21,622 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-12-02 12:22:21,835 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-12-02 12:22:21,994 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-12-02 12:22:22,129 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2018-12-02 12:22:22,271 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-02 12:22:22,426 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2018-12-02 12:22:22,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:22:22,446 INFO L93 Difference]: Finished difference Result 5593 states and 13805 transitions. [2018-12-02 12:22:22,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-12-02 12:22:22,447 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:22:22,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:22:22,449 INFO L225 Difference]: With dead ends: 5593 [2018-12-02 12:22:22,449 INFO L226 Difference]: Without dead ends: 5593 [2018-12-02 12:22:22,450 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=605, Invalid=1557, Unknown=0, NotChecked=0, Total=2162 [2018-12-02 12:22:22,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5593 states. [2018-12-02 12:22:22,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5593 to 2540. [2018-12-02 12:22:22,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2540 states. [2018-12-02 12:22:22,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6596 transitions. [2018-12-02 12:22:22,476 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6596 transitions. Word has length 96 [2018-12-02 12:22:22,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:22:22,476 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6596 transitions. [2018-12-02 12:22:22,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:22:22,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6596 transitions. [2018-12-02 12:22:22,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:22:22,477 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:22:22,478 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:22:22,478 INFO L423 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:22:22,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:22:22,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1146484188, now seen corresponding path program 15 times [2018-12-02 12:22:22,478 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:22:22,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:22:22,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:22,481 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:22:22,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:23,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:23,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:23,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:23,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:23,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:23,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:23,398 INFO L87 Difference]: Start difference. First operand 2540 states and 6596 transitions. Second operand 21 states. [2018-12-02 12:22:24,109 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:22:24,374 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-12-02 12:22:24,623 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2018-12-02 12:22:24,870 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-02 12:22:25,273 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2018-12-02 12:22:25,500 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2018-12-02 12:22:25,701 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2018-12-02 12:22:25,928 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2018-12-02 12:22:26,424 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2018-12-02 12:22:26,628 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2018-12-02 12:22:26,809 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2018-12-02 12:22:27,078 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2018-12-02 12:22:27,277 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-12-02 12:22:27,559 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-02 12:22:27,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:22:27,570 INFO L93 Difference]: Finished difference Result 4425 states and 10876 transitions. [2018-12-02 12:22:27,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:22:27,570 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:22:27,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:22:27,572 INFO L225 Difference]: With dead ends: 4425 [2018-12-02 12:22:27,572 INFO L226 Difference]: Without dead ends: 4425 [2018-12-02 12:22:27,573 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:22:27,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4425 states. [2018-12-02 12:22:27,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4425 to 2540. [2018-12-02 12:22:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2540 states. [2018-12-02 12:22:27,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6596 transitions. [2018-12-02 12:22:27,595 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6596 transitions. Word has length 96 [2018-12-02 12:22:27,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:22:27,595 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6596 transitions. [2018-12-02 12:22:27,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:22:27,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6596 transitions. [2018-12-02 12:22:27,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:22:27,597 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:22:27,597 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:22:27,597 INFO L423 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:22:27,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:22:27,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1464747682, now seen corresponding path program 16 times [2018-12-02 12:22:27,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:22:27,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:22:27,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:27,600 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:22:27,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:28,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:28,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:28,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:28,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:28,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:28,476 INFO L87 Difference]: Start difference. First operand 2540 states and 6596 transitions. Second operand 21 states. [2018-12-02 12:22:29,025 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-02 12:22:29,272 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2018-12-02 12:22:29,444 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-02 12:22:29,616 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-12-02 12:22:29,793 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2018-12-02 12:22:30,013 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-12-02 12:22:30,214 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-12-02 12:22:30,412 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-12-02 12:22:30,632 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2018-12-02 12:22:31,014 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-12-02 12:22:31,142 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-02 12:22:31,275 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-02 12:22:31,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:22:31,868 INFO L93 Difference]: Finished difference Result 3269 states and 8034 transitions. [2018-12-02 12:22:31,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-12-02 12:22:31,868 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:22:31,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:22:31,870 INFO L225 Difference]: With dead ends: 3269 [2018-12-02 12:22:31,870 INFO L226 Difference]: Without dead ends: 3269 [2018-12-02 12:22:31,871 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=464, Invalid=1342, Unknown=0, NotChecked=0, Total=1806 [2018-12-02 12:22:31,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2018-12-02 12:22:31,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 2480. [2018-12-02 12:22:31,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2480 states. [2018-12-02 12:22:31,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 6455 transitions. [2018-12-02 12:22:31,893 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 6455 transitions. Word has length 96 [2018-12-02 12:22:31,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:22:31,893 INFO L480 AbstractCegarLoop]: Abstraction has 2480 states and 6455 transitions. [2018-12-02 12:22:31,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:22:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 6455 transitions. [2018-12-02 12:22:31,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:22:31,895 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:22:31,895 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:22:31,895 INFO L423 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:22:31,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:22:31,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1937087470, now seen corresponding path program 17 times [2018-12-02 12:22:31,895 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:22:31,895 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:22:31,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:31,898 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:22:31,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:32,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:32,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:32,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:32,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:32,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:32,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:32,926 INFO L87 Difference]: Start difference. First operand 2480 states and 6455 transitions. Second operand 21 states. [2018-12-02 12:22:33,800 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2018-12-02 12:22:34,073 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-02 12:22:34,293 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:22:34,485 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-12-02 12:22:34,994 WARN L180 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-02 12:22:35,370 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-12-02 12:22:35,636 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-12-02 12:22:36,139 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-02 12:22:36,277 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-02 12:22:36,787 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2018-12-02 12:22:37,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:22:37,075 INFO L93 Difference]: Finished difference Result 3810 states and 9142 transitions. [2018-12-02 12:22:37,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-02 12:22:37,075 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:22:37,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:22:37,078 INFO L225 Difference]: With dead ends: 3810 [2018-12-02 12:22:37,078 INFO L226 Difference]: Without dead ends: 3810 [2018-12-02 12:22:37,078 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=433, Invalid=1289, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:22:37,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2018-12-02 12:22:37,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 2482. [2018-12-02 12:22:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2482 states. [2018-12-02 12:22:37,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 6460 transitions. [2018-12-02 12:22:37,102 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 6460 transitions. Word has length 96 [2018-12-02 12:22:37,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:22:37,102 INFO L480 AbstractCegarLoop]: Abstraction has 2482 states and 6460 transitions. [2018-12-02 12:22:37,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:22:37,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 6460 transitions. [2018-12-02 12:22:37,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:22:37,104 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:22:37,104 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:22:37,104 INFO L423 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:22:37,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:22:37,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1860130640, now seen corresponding path program 18 times [2018-12-02 12:22:37,104 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:22:37,104 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:22:37,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:37,107 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:22:37,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:37,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:37,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:37,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:37,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:37,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:37,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:37,976 INFO L87 Difference]: Start difference. First operand 2482 states and 6460 transitions. Second operand 21 states. [2018-12-02 12:22:38,450 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-12-02 12:22:38,777 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-02 12:22:39,180 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-12-02 12:22:39,428 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:22:39,642 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-12-02 12:22:39,865 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-02 12:22:40,066 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-02 12:22:40,296 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2018-12-02 12:22:40,795 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-02 12:22:40,922 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-02 12:22:41,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:22:41,586 INFO L93 Difference]: Finished difference Result 3515 states and 8548 transitions. [2018-12-02 12:22:41,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-02 12:22:41,586 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:22:41,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:22:41,588 INFO L225 Difference]: With dead ends: 3515 [2018-12-02 12:22:41,588 INFO L226 Difference]: Without dead ends: 3515 [2018-12-02 12:22:41,588 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=434, Invalid=1288, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:22:41,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2018-12-02 12:22:41,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 2474. [2018-12-02 12:22:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2474 states. [2018-12-02 12:22:41,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 6440 transitions. [2018-12-02 12:22:41,609 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 6440 transitions. Word has length 96 [2018-12-02 12:22:41,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:22:41,609 INFO L480 AbstractCegarLoop]: Abstraction has 2474 states and 6440 transitions. [2018-12-02 12:22:41,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:22:41,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 6440 transitions. [2018-12-02 12:22:41,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:22:41,611 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:22:41,611 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:22:41,611 INFO L423 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:22:41,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:22:41,611 INFO L82 PathProgramCache]: Analyzing trace with hash -330961638, now seen corresponding path program 19 times [2018-12-02 12:22:41,611 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:22:41,611 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:22:41,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:41,614 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:22:41,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:42,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:42,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:42,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:42,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:42,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:42,520 INFO L87 Difference]: Start difference. First operand 2474 states and 6440 transitions. Second operand 21 states. [2018-12-02 12:22:43,498 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2018-12-02 12:22:43,688 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2018-12-02 12:22:43,878 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2018-12-02 12:22:44,081 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-02 12:22:44,281 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-12-02 12:22:44,515 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-12-02 12:22:44,917 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-12-02 12:22:45,070 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-02 12:22:45,205 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-02 12:22:45,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:22:45,866 INFO L93 Difference]: Finished difference Result 3489 states and 8492 transitions. [2018-12-02 12:22:45,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-02 12:22:45,866 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:22:45,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:22:45,868 INFO L225 Difference]: With dead ends: 3489 [2018-12-02 12:22:45,869 INFO L226 Difference]: Without dead ends: 3489 [2018-12-02 12:22:45,869 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=433, Invalid=1289, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:22:45,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3489 states. [2018-12-02 12:22:45,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3489 to 2482. [2018-12-02 12:22:45,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2482 states. [2018-12-02 12:22:45,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 6460 transitions. [2018-12-02 12:22:45,893 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 6460 transitions. Word has length 96 [2018-12-02 12:22:45,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:22:45,893 INFO L480 AbstractCegarLoop]: Abstraction has 2482 states and 6460 transitions. [2018-12-02 12:22:45,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:22:45,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 6460 transitions. [2018-12-02 12:22:45,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:22:45,895 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:22:45,895 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:22:45,895 INFO L423 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:22:45,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:22:45,895 INFO L82 PathProgramCache]: Analyzing trace with hash -407918468, now seen corresponding path program 20 times [2018-12-02 12:22:45,895 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:22:45,895 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:22:45,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:45,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:22:45,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:46,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:46,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:46,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:46,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:46,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:46,787 INFO L87 Difference]: Start difference. First operand 2482 states and 6460 transitions. Second operand 21 states. [2018-12-02 12:22:47,774 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-12-02 12:22:47,959 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2018-12-02 12:22:48,168 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-12-02 12:22:48,379 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-02 12:22:48,576 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-02 12:22:48,811 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2018-12-02 12:22:49,371 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-02 12:22:49,496 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-02 12:22:50,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:22:50,148 INFO L93 Difference]: Finished difference Result 3707 states and 8945 transitions. [2018-12-02 12:22:50,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-02 12:22:50,148 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:22:50,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:22:50,150 INFO L225 Difference]: With dead ends: 3707 [2018-12-02 12:22:50,150 INFO L226 Difference]: Without dead ends: 3707 [2018-12-02 12:22:50,150 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=434, Invalid=1288, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:22:50,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2018-12-02 12:22:50,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 2480. [2018-12-02 12:22:50,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2480 states. [2018-12-02 12:22:50,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 6455 transitions. [2018-12-02 12:22:50,171 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 6455 transitions. Word has length 96 [2018-12-02 12:22:50,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:22:50,171 INFO L480 AbstractCegarLoop]: Abstraction has 2480 states and 6455 transitions. [2018-12-02 12:22:50,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:22:50,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 6455 transitions. [2018-12-02 12:22:50,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:22:50,172 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:22:50,172 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:22:50,173 INFO L423 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:22:50,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:22:50,173 INFO L82 PathProgramCache]: Analyzing trace with hash 174955802, now seen corresponding path program 21 times [2018-12-02 12:22:50,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:22:50,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:22:50,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:50,176 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:22:50,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:51,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:51,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:51,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:51,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:51,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:51,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:51,046 INFO L87 Difference]: Start difference. First operand 2480 states and 6455 transitions. Second operand 21 states. [2018-12-02 12:22:51,920 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-12-02 12:22:52,130 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2018-12-02 12:22:52,331 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2018-12-02 12:22:52,550 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-02 12:22:52,786 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-02 12:22:53,060 WARN L180 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-02 12:22:53,775 WARN L180 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-12-02 12:22:54,139 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-12-02 12:22:54,335 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-02 12:22:54,713 WARN L180 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-02 12:22:55,046 WARN L180 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2018-12-02 12:22:55,621 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2018-12-02 12:22:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:22:55,643 INFO L93 Difference]: Finished difference Result 3192 states and 7893 transitions. [2018-12-02 12:22:55,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-12-02 12:22:55,644 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:22:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:22:55,646 INFO L225 Difference]: With dead ends: 3192 [2018-12-02 12:22:55,646 INFO L226 Difference]: Without dead ends: 3192 [2018-12-02 12:22:55,646 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=466, Invalid=1340, Unknown=0, NotChecked=0, Total=1806 [2018-12-02 12:22:55,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2018-12-02 12:22:55,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 2498. [2018-12-02 12:22:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2498 states. [2018-12-02 12:22:55,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 6500 transitions. [2018-12-02 12:22:55,668 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 6500 transitions. Word has length 96 [2018-12-02 12:22:55,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:22:55,668 INFO L480 AbstractCegarLoop]: Abstraction has 2498 states and 6500 transitions. [2018-12-02 12:22:55,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:22:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 6500 transitions. [2018-12-02 12:22:55,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:22:55,670 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:22:55,670 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:22:55,671 INFO L423 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:22:55,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:22:55,671 INFO L82 PathProgramCache]: Analyzing trace with hash 977442, now seen corresponding path program 22 times [2018-12-02 12:22:55,671 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:22:55,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:22:55,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:55,674 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:22:55,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:22:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:22:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:22:56,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:22:56,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:22:56,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:22:56,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:22:56,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:22:56,567 INFO L87 Difference]: Start difference. First operand 2498 states and 6500 transitions. Second operand 21 states. [2018-12-02 12:22:57,316 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:22:57,521 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-12-02 12:22:57,777 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-02 12:22:57,980 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2018-12-02 12:22:58,355 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-12-02 12:22:58,563 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-12-02 12:22:58,778 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-12-02 12:22:59,015 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2018-12-02 12:22:59,444 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-02 12:22:59,638 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-02 12:22:59,799 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-12-02 12:23:00,049 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-12-02 12:23:00,289 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2018-12-02 12:23:00,473 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2018-12-02 12:23:00,627 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2018-12-02 12:23:00,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:23:00,637 INFO L93 Difference]: Finished difference Result 4235 states and 10394 transitions. [2018-12-02 12:23:00,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:23:00,637 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:23:00,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:23:00,639 INFO L225 Difference]: With dead ends: 4235 [2018-12-02 12:23:00,639 INFO L226 Difference]: Without dead ends: 4235 [2018-12-02 12:23:00,640 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=466, Invalid=1256, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:23:00,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4235 states. [2018-12-02 12:23:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4235 to 2498. [2018-12-02 12:23:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2498 states. [2018-12-02 12:23:00,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 6500 transitions. [2018-12-02 12:23:00,660 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 6500 transitions. Word has length 96 [2018-12-02 12:23:00,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:23:00,660 INFO L480 AbstractCegarLoop]: Abstraction has 2498 states and 6500 transitions. [2018-12-02 12:23:00,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:23:00,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 6500 transitions. [2018-12-02 12:23:00,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:23:00,662 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:23:00,662 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:23:00,662 INFO L423 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:23:00,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:23:00,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1249039202, now seen corresponding path program 23 times [2018-12-02 12:23:00,662 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:23:00,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:23:00,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:00,665 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:23:00,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:23:01,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:23:01,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:23:01,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:23:01,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:23:01,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:23:01,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:23:01,583 INFO L87 Difference]: Start difference. First operand 2498 states and 6500 transitions. Second operand 21 states. [2018-12-02 12:23:01,955 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2018-12-02 12:23:02,260 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-12-02 12:23:02,586 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:23:02,759 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-12-02 12:23:02,940 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-02 12:23:03,139 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2018-12-02 12:23:03,327 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2018-12-02 12:23:03,555 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2018-12-02 12:23:04,005 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2018-12-02 12:23:04,203 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-02 12:23:04,436 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2018-12-02 12:23:04,873 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2018-12-02 12:23:05,085 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-02 12:23:05,295 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2018-12-02 12:23:05,476 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-02 12:23:05,672 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2018-12-02 12:23:05,937 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-12-02 12:23:06,148 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-12-02 12:23:06,328 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2018-12-02 12:23:06,481 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-02 12:23:06,776 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2018-12-02 12:23:06,945 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2018-12-02 12:23:06,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:23:06,960 INFO L93 Difference]: Finished difference Result 5297 states and 13147 transitions. [2018-12-02 12:23:06,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-12-02 12:23:06,961 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:23:06,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:23:06,964 INFO L225 Difference]: With dead ends: 5297 [2018-12-02 12:23:06,965 INFO L226 Difference]: Without dead ends: 5297 [2018-12-02 12:23:06,965 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2018-12-02 12:23:06,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2018-12-02 12:23:06,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 2465. [2018-12-02 12:23:06,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2465 states. [2018-12-02 12:23:06,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 6401 transitions. [2018-12-02 12:23:06,996 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 6401 transitions. Word has length 96 [2018-12-02 12:23:06,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:23:06,996 INFO L480 AbstractCegarLoop]: Abstraction has 2465 states and 6401 transitions. [2018-12-02 12:23:06,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:23:06,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 6401 transitions. [2018-12-02 12:23:06,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:23:06,998 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:23:06,998 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:23:06,998 INFO L423 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:23:06,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:23:06,999 INFO L82 PathProgramCache]: Analyzing trace with hash -2051501202, now seen corresponding path program 24 times [2018-12-02 12:23:06,999 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:23:06,999 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:23:07,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:07,001 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:23:07,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:23:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:23:08,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:23:08,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:23:08,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:23:08,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:23:08,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:23:08,074 INFO L87 Difference]: Start difference. First operand 2465 states and 6401 transitions. Second operand 21 states. [2018-12-02 12:23:08,781 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-12-02 12:23:09,051 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-02 12:23:09,232 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:23:09,416 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-02 12:23:09,965 WARN L180 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-12-02 12:23:10,145 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2018-12-02 12:23:10,348 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2018-12-02 12:23:10,716 WARN L180 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-12-02 12:23:10,953 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2018-12-02 12:23:11,458 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-12-02 12:23:11,660 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-12-02 12:23:11,833 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-02 12:23:12,073 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-12-02 12:23:12,380 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:23:12,720 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2018-12-02 12:23:12,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:23:12,742 INFO L93 Difference]: Finished difference Result 4435 states and 10826 transitions. [2018-12-02 12:23:12,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:23:12,743 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:23:12,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:23:12,745 INFO L225 Difference]: With dead ends: 4435 [2018-12-02 12:23:12,745 INFO L226 Difference]: Without dead ends: 4435 [2018-12-02 12:23:12,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=455, Invalid=1267, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:23:12,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2018-12-02 12:23:12,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 2467. [2018-12-02 12:23:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2018-12-02 12:23:12,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 6406 transitions. [2018-12-02 12:23:12,767 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 6406 transitions. Word has length 96 [2018-12-02 12:23:12,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:23:12,767 INFO L480 AbstractCegarLoop]: Abstraction has 2467 states and 6406 transitions. [2018-12-02 12:23:12,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:23:12,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 6406 transitions. [2018-12-02 12:23:12,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:23:12,769 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:23:12,769 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:23:12,769 INFO L423 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:23:12,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:23:12,769 INFO L82 PathProgramCache]: Analyzing trace with hash -2128458032, now seen corresponding path program 25 times [2018-12-02 12:23:12,769 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:23:12,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:23:12,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:12,772 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:23:12,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:23:13,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:23:13,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:23:13,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:23:13,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:23:13,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:23:13,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:23:13,738 INFO L87 Difference]: Start difference. First operand 2467 states and 6406 transitions. Second operand 21 states. [2018-12-02 12:23:14,500 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:23:14,746 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-12-02 12:23:15,051 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2018-12-02 12:23:15,246 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-12-02 12:23:15,453 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-12-02 12:23:15,659 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-12-02 12:23:15,903 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2018-12-02 12:23:16,363 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-02 12:23:16,552 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-02 12:23:16,731 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-12-02 12:23:16,870 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2018-12-02 12:23:17,263 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2018-12-02 12:23:17,542 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-12-02 12:23:17,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:23:17,556 INFO L93 Difference]: Finished difference Result 4332 states and 10629 transitions. [2018-12-02 12:23:17,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:23:17,556 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:23:17,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:23:17,559 INFO L225 Difference]: With dead ends: 4332 [2018-12-02 12:23:17,559 INFO L226 Difference]: Without dead ends: 4332 [2018-12-02 12:23:17,559 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=456, Invalid=1266, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:23:17,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2018-12-02 12:23:17,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 2465. [2018-12-02 12:23:17,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2465 states. [2018-12-02 12:23:17,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 6401 transitions. [2018-12-02 12:23:17,586 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 6401 transitions. Word has length 96 [2018-12-02 12:23:17,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:23:17,586 INFO L480 AbstractCegarLoop]: Abstraction has 2465 states and 6401 transitions. [2018-12-02 12:23:17,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:23:17,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 6401 transitions. [2018-12-02 12:23:17,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:23:17,587 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:23:17,587 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:23:17,588 INFO L423 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:23:17,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:23:17,588 INFO L82 PathProgramCache]: Analyzing trace with hash -42197104, now seen corresponding path program 26 times [2018-12-02 12:23:17,588 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:23:17,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:23:17,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:17,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:23:17,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:23:18,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:23:18,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:23:18,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:23:18,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:23:18,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:23:18,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:23:18,460 INFO L87 Difference]: Start difference. First operand 2465 states and 6401 transitions. Second operand 21 states. [2018-12-02 12:23:19,236 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:23:19,412 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2018-12-02 12:23:19,624 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-12-02 12:23:20,098 WARN L180 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-02 12:23:20,301 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-02 12:23:20,613 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-02 12:23:21,321 WARN L180 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-12-02 12:23:21,512 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-12-02 12:23:21,766 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2018-12-02 12:23:22,482 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2018-12-02 12:23:22,690 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2018-12-02 12:23:22,883 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2018-12-02 12:23:23,104 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2018-12-02 12:23:23,278 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-02 12:23:23,463 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2018-12-02 12:23:23,668 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2018-12-02 12:23:23,862 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2018-12-02 12:23:24,142 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-12-02 12:23:24,285 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-02 12:23:24,440 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2018-12-02 12:23:24,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:23:24,455 INFO L93 Difference]: Finished difference Result 6306 states and 15694 transitions. [2018-12-02 12:23:24,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-12-02 12:23:24,456 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:23:24,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:23:24,459 INFO L225 Difference]: With dead ends: 6306 [2018-12-02 12:23:24,459 INFO L226 Difference]: Without dead ends: 6306 [2018-12-02 12:23:24,459 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=605, Invalid=1557, Unknown=0, NotChecked=0, Total=2162 [2018-12-02 12:23:24,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6306 states. [2018-12-02 12:23:24,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6306 to 2476. [2018-12-02 12:23:24,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2476 states. [2018-12-02 12:23:24,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 6434 transitions. [2018-12-02 12:23:24,484 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 6434 transitions. Word has length 96 [2018-12-02 12:23:24,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:23:24,484 INFO L480 AbstractCegarLoop]: Abstraction has 2476 states and 6434 transitions. [2018-12-02 12:23:24,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:23:24,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 6434 transitions. [2018-12-02 12:23:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:23:24,485 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:23:24,486 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:23:24,486 INFO L423 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:23:24,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:23:24,486 INFO L82 PathProgramCache]: Analyzing trace with hash 445783236, now seen corresponding path program 27 times [2018-12-02 12:23:24,486 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:23:24,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:23:24,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:24,489 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:23:24,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:23:25,228 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 31 [2018-12-02 12:23:25,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:23:25,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:23:25,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:23:25,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:23:25,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:23:25,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:23:25,590 INFO L87 Difference]: Start difference. First operand 2476 states and 6434 transitions. Second operand 21 states. [2018-12-02 12:23:26,385 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:23:26,566 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2018-12-02 12:23:26,767 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-12-02 12:23:27,000 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-02 12:23:27,423 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-12-02 12:23:27,636 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-12-02 12:23:27,924 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-12-02 12:23:28,207 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2018-12-02 12:23:28,711 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2018-12-02 12:23:28,911 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2018-12-02 12:23:29,123 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-02 12:23:29,366 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2018-12-02 12:23:29,559 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2018-12-02 12:23:29,859 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-02 12:23:29,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:23:29,870 INFO L93 Difference]: Finished difference Result 5188 states and 12863 transitions. [2018-12-02 12:23:29,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:23:29,871 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:23:29,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:23:29,873 INFO L225 Difference]: With dead ends: 5188 [2018-12-02 12:23:29,873 INFO L226 Difference]: Without dead ends: 5188 [2018-12-02 12:23:29,874 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:23:29,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5188 states. [2018-12-02 12:23:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5188 to 2454. [2018-12-02 12:23:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2454 states. [2018-12-02 12:23:29,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2454 states to 2454 states and 6368 transitions. [2018-12-02 12:23:29,897 INFO L78 Accepts]: Start accepts. Automaton has 2454 states and 6368 transitions. Word has length 96 [2018-12-02 12:23:29,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:23:29,897 INFO L480 AbstractCegarLoop]: Abstraction has 2454 states and 6368 transitions. [2018-12-02 12:23:29,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:23:29,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2454 states and 6368 transitions. [2018-12-02 12:23:29,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:23:29,898 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:23:29,898 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:23:29,898 INFO L423 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:23:29,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:23:29,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1376334626, now seen corresponding path program 28 times [2018-12-02 12:23:29,899 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:23:29,899 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:23:29,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:29,902 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:23:29,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:23:30,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:23:30,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:23:30,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:23:30,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:23:30,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:23:30,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:23:30,790 INFO L87 Difference]: Start difference. First operand 2454 states and 6368 transitions. Second operand 21 states. [2018-12-02 12:23:31,527 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:23:31,791 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-02 12:23:31,987 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-12-02 12:23:32,169 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2018-12-02 12:23:32,365 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2018-12-02 12:23:32,564 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-12-02 12:23:32,798 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2018-12-02 12:23:33,166 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-02 12:23:33,341 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-02 12:23:33,491 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-02 12:23:33,708 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-02 12:23:34,021 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-02 12:23:34,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:23:34,305 INFO L93 Difference]: Finished difference Result 3450 states and 8352 transitions. [2018-12-02 12:23:34,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:23:34,305 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:23:34,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:23:34,307 INFO L225 Difference]: With dead ends: 3450 [2018-12-02 12:23:34,308 INFO L226 Difference]: Without dead ends: 3450 [2018-12-02 12:23:34,308 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=444, Invalid=1278, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:23:34,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2018-12-02 12:23:34,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 2448. [2018-12-02 12:23:34,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2448 states. [2018-12-02 12:23:34,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 6353 transitions. [2018-12-02 12:23:34,328 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 6353 transitions. Word has length 96 [2018-12-02 12:23:34,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:23:34,328 INFO L480 AbstractCegarLoop]: Abstraction has 2448 states and 6353 transitions. [2018-12-02 12:23:34,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:23:34,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 6353 transitions. [2018-12-02 12:23:34,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:23:34,330 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:23:34,330 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:23:34,330 INFO L423 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:23:34,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:23:34,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1453291456, now seen corresponding path program 29 times [2018-12-02 12:23:34,330 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:23:34,330 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:23:34,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:34,333 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:23:34,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:23:34,990 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 18 [2018-12-02 12:23:35,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:23:35,430 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:23:35,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:23:35,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:23:35,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:23:35,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:23:35,430 INFO L87 Difference]: Start difference. First operand 2448 states and 6353 transitions. Second operand 21 states. [2018-12-02 12:23:36,002 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-12-02 12:23:36,315 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-02 12:23:36,594 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:23:36,902 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-12-02 12:23:37,105 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2018-12-02 12:23:37,315 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2018-12-02 12:23:37,535 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-12-02 12:23:37,730 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-12-02 12:23:37,970 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2018-12-02 12:23:38,420 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-02 12:23:38,611 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-02 12:23:38,785 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-02 12:23:39,019 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-02 12:23:39,309 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-02 12:23:39,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:23:39,590 INFO L93 Difference]: Finished difference Result 3668 states and 8805 transitions. [2018-12-02 12:23:39,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 12:23:39,590 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:23:39,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:23:39,593 INFO L225 Difference]: With dead ends: 3668 [2018-12-02 12:23:39,593 INFO L226 Difference]: Without dead ends: 3668 [2018-12-02 12:23:39,593 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=445, Invalid=1277, Unknown=0, NotChecked=0, Total=1722 [2018-12-02 12:23:39,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3668 states. [2018-12-02 12:23:39,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3668 to 2446. [2018-12-02 12:23:39,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2446 states. [2018-12-02 12:23:39,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 6348 transitions. [2018-12-02 12:23:39,614 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 6348 transitions. Word has length 96 [2018-12-02 12:23:39,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:23:39,614 INFO L480 AbstractCegarLoop]: Abstraction has 2446 states and 6348 transitions. [2018-12-02 12:23:39,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:23:39,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 6348 transitions. [2018-12-02 12:23:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:23:39,616 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:23:39,616 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:23:39,616 INFO L423 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:23:39,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:23:39,616 INFO L82 PathProgramCache]: Analyzing trace with hash -870417186, now seen corresponding path program 30 times [2018-12-02 12:23:39,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:23:39,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:23:39,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:39,620 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:23:39,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:23:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:23:40,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:23:40,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:23:40,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:23:40,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:23:40,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:23:40,617 INFO L87 Difference]: Start difference. First operand 2446 states and 6348 transitions. Second operand 21 states. [2018-12-02 12:23:41,015 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 25 [2018-12-02 12:23:41,252 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-12-02 12:23:41,592 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:23:41,842 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-12-02 12:23:42,008 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-12-02 12:23:42,192 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2018-12-02 12:23:42,419 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-02 12:23:42,654 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2018-12-02 12:23:42,860 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-02 12:23:43,105 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-12-02 12:23:43,523 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-02 12:23:43,707 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-02 12:23:43,873 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-02 12:23:44,013 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-02 12:23:44,377 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-02 12:23:44,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:23:44,622 INFO L93 Difference]: Finished difference Result 3402 states and 8279 transitions. [2018-12-02 12:23:44,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-02 12:23:44,622 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:23:44,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:23:44,624 INFO L225 Difference]: With dead ends: 3402 [2018-12-02 12:23:44,624 INFO L226 Difference]: Without dead ends: 3402 [2018-12-02 12:23:44,624 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=476, Invalid=1330, Unknown=0, NotChecked=0, Total=1806 [2018-12-02 12:23:44,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3402 states. [2018-12-02 12:23:44,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3402 to 2440. [2018-12-02 12:23:44,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2440 states. [2018-12-02 12:23:44,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 6333 transitions. [2018-12-02 12:23:44,642 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 6333 transitions. Word has length 96 [2018-12-02 12:23:44,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:23:44,643 INFO L480 AbstractCegarLoop]: Abstraction has 2440 states and 6333 transitions. [2018-12-02 12:23:44,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:23:44,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 6333 transitions. [2018-12-02 12:23:44,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:23:44,644 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:23:44,644 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:23:44,644 INFO L423 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:23:44,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:23:44,644 INFO L82 PathProgramCache]: Analyzing trace with hash 898922714, now seen corresponding path program 31 times [2018-12-02 12:23:44,644 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:23:44,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:23:44,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:44,648 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:23:44,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:23:45,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:23:45,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:23:45,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:23:45,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:23:45,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:23:45,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:23:45,615 INFO L87 Difference]: Start difference. First operand 2440 states and 6333 transitions. Second operand 21 states. [2018-12-02 12:23:46,379 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:23:46,539 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2018-12-02 12:23:46,715 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-02 12:23:46,913 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-12-02 12:23:47,132 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2018-12-02 12:23:47,336 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-02 12:23:47,580 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2018-12-02 12:23:48,091 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-12-02 12:23:48,355 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-12-02 12:23:48,553 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-12-02 12:23:48,816 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-02 12:23:49,300 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-02 12:23:49,517 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-12-02 12:23:49,690 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-12-02 12:23:49,903 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2018-12-02 12:23:50,064 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2018-12-02 12:23:50,256 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2018-12-02 12:23:50,452 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-12-02 12:23:50,649 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-12-02 12:23:50,920 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2018-12-02 12:23:51,096 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-12-02 12:23:51,304 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2018-12-02 12:23:51,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:23:51,320 INFO L93 Difference]: Finished difference Result 4083 states and 10082 transitions. [2018-12-02 12:23:51,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-12-02 12:23:51,320 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:23:51,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:23:51,322 INFO L225 Difference]: With dead ends: 4083 [2018-12-02 12:23:51,323 INFO L226 Difference]: Without dead ends: 4083 [2018-12-02 12:23:51,323 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=653, Invalid=1699, Unknown=0, NotChecked=0, Total=2352 [2018-12-02 12:23:51,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2018-12-02 12:23:51,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 1967. [2018-12-02 12:23:51,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1967 states. [2018-12-02 12:23:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 5046 transitions. [2018-12-02 12:23:51,340 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 5046 transitions. Word has length 96 [2018-12-02 12:23:51,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:23:51,340 INFO L480 AbstractCegarLoop]: Abstraction has 1967 states and 5046 transitions. [2018-12-02 12:23:51,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:23:51,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 5046 transitions. [2018-12-02 12:23:51,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:23:51,341 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:23:51,341 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:23:51,341 INFO L423 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:23:51,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:23:51,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1386903054, now seen corresponding path program 32 times [2018-12-02 12:23:51,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:23:51,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:23:51,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:51,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:23:51,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:23:52,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:23:52,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:23:52,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:23:52,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:23:52,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:23:52,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:23:52,302 INFO L87 Difference]: Start difference. First operand 1967 states and 5046 transitions. Second operand 21 states. [2018-12-02 12:23:53,062 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:23:53,228 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2018-12-02 12:23:53,419 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-02 12:23:53,624 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-12-02 12:23:53,839 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-02 12:23:54,237 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-12-02 12:23:54,517 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-02 12:23:55,080 WARN L180 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-02 12:23:55,305 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-02 12:23:55,825 WARN L180 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-12-02 12:23:56,325 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-02 12:23:56,562 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2018-12-02 12:23:57,110 WARN L180 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-12-02 12:23:57,408 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-12-02 12:23:57,577 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2018-12-02 12:23:57,750 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2018-12-02 12:23:58,064 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-12-02 12:23:58,325 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-12-02 12:23:58,525 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2018-12-02 12:23:58,818 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2018-12-02 12:23:59,040 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-12-02 12:23:59,332 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-12-02 12:23:59,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:23:59,350 INFO L93 Difference]: Finished difference Result 4336 states and 10537 transitions. [2018-12-02 12:23:59,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-02 12:23:59,350 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:23:59,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:23:59,352 INFO L225 Difference]: With dead ends: 4336 [2018-12-02 12:23:59,352 INFO L226 Difference]: Without dead ends: 4336 [2018-12-02 12:23:59,353 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=667, Invalid=1783, Unknown=0, NotChecked=0, Total=2450 [2018-12-02 12:23:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2018-12-02 12:23:59,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 1956. [2018-12-02 12:23:59,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2018-12-02 12:23:59,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 5013 transitions. [2018-12-02 12:23:59,370 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 5013 transitions. Word has length 96 [2018-12-02 12:23:59,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:23:59,370 INFO L480 AbstractCegarLoop]: Abstraction has 1956 states and 5013 transitions. [2018-12-02 12:23:59,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:23:59,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 5013 transitions. [2018-12-02 12:23:59,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 12:23:59,372 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:23:59,372 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:23:59,372 INFO L423 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:23:59,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:23:59,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1777906018, now seen corresponding path program 33 times [2018-12-02 12:23:59,372 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:23:59,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:23:59,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:59,375 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:23:59,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:23:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:24:00,001 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-12-02 12:24:00,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:24:00,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:24:00,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-02 12:24:00,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-02 12:24:00,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-02 12:24:00,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-02 12:24:00,457 INFO L87 Difference]: Start difference. First operand 1956 states and 5013 transitions. Second operand 21 states. [2018-12-02 12:24:00,905 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-12-02 12:24:01,297 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-02 12:24:01,487 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-02 12:24:01,649 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2018-12-02 12:24:01,825 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-02 12:24:02,418 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2018-12-02 12:24:02,602 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2018-12-02 12:24:02,819 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-02 12:24:03,039 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-12-02 12:24:03,238 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-12-02 12:24:03,472 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-12-02 12:24:03,938 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-02 12:24:04,125 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-12-02 12:24:04,273 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2018-12-02 12:24:04,676 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-12-02 12:24:04,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:24:04,950 INFO L93 Difference]: Finished difference Result 2857 states and 6970 transitions. [2018-12-02 12:24:04,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-02 12:24:04,951 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-02 12:24:04,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:24:04,953 INFO L225 Difference]: With dead ends: 2857 [2018-12-02 12:24:04,953 INFO L226 Difference]: Without dead ends: 2857 [2018-12-02 12:24:04,953 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=488, Invalid=1318, Unknown=0, NotChecked=0, Total=1806 [2018-12-02 12:24:04,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2018-12-02 12:24:04,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1778. [2018-12-02 12:24:04,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1778 states. [2018-12-02 12:24:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 4648 transitions. [2018-12-02 12:24:04,969 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 4648 transitions. Word has length 96 [2018-12-02 12:24:04,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:24:04,969 INFO L480 AbstractCegarLoop]: Abstraction has 1778 states and 4648 transitions. [2018-12-02 12:24:04,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-02 12:24:04,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 4648 transitions. [2018-12-02 12:24:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 12:24:04,971 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:24:04,971 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:24:04,971 INFO L423 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:24:04,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:24:04,971 INFO L82 PathProgramCache]: Analyzing trace with hash 911245093, now seen corresponding path program 1 times [2018-12-02 12:24:04,971 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:24:04,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:24:04,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:04,976 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:24:04,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:24:05,952 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 34 [2018-12-02 12:24:06,157 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 33 [2018-12-02 12:24:07,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:24:07,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:24:07,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2018-12-02 12:24:07,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-02 12:24:07,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-02 12:24:07,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2018-12-02 12:24:07,456 INFO L87 Difference]: Start difference. First operand 1778 states and 4648 transitions. Second operand 33 states. [2018-12-02 12:24:08,539 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-02 12:24:08,797 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-12-02 12:24:09,068 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-12-02 12:24:09,295 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2018-12-02 12:24:09,602 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2018-12-02 12:24:09,912 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2018-12-02 12:24:12,194 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2018-12-02 12:24:12,514 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2018-12-02 12:24:12,668 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2018-12-02 12:24:12,928 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2018-12-02 12:24:13,114 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2018-12-02 12:24:13,301 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2018-12-02 12:24:14,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:24:14,513 INFO L93 Difference]: Finished difference Result 2141 states and 5467 transitions. [2018-12-02 12:24:14,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-02 12:24:14,513 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 102 [2018-12-02 12:24:14,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:24:14,515 INFO L225 Difference]: With dead ends: 2141 [2018-12-02 12:24:14,515 INFO L226 Difference]: Without dead ends: 1962 [2018-12-02 12:24:14,515 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=715, Invalid=3841, Unknown=0, NotChecked=0, Total=4556 [2018-12-02 12:24:14,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2018-12-02 12:24:14,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1778. [2018-12-02 12:24:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1778 states. [2018-12-02 12:24:14,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 4636 transitions. [2018-12-02 12:24:14,527 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 4636 transitions. Word has length 102 [2018-12-02 12:24:14,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:24:14,527 INFO L480 AbstractCegarLoop]: Abstraction has 1778 states and 4636 transitions. [2018-12-02 12:24:14,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-02 12:24:14,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 4636 transitions. [2018-12-02 12:24:14,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 12:24:14,528 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:24:14,528 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:24:14,528 INFO L423 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:24:14,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:24:14,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1954643991, now seen corresponding path program 2 times [2018-12-02 12:24:14,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:24:14,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:24:14,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:14,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:24:14,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:24:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:24:16,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:24:16,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2018-12-02 12:24:16,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-02 12:24:16,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-02 12:24:16,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2018-12-02 12:24:16,944 INFO L87 Difference]: Start difference. First operand 1778 states and 4636 transitions. Second operand 33 states. [2018-12-02 12:24:18,410 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-02 12:24:18,685 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-12-02 12:24:19,152 WARN L180 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-12-02 12:24:19,468 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2018-12-02 12:24:19,976 WARN L180 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2018-12-02 12:24:20,348 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2018-12-02 12:24:21,403 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2018-12-02 12:24:22,523 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2018-12-02 12:24:22,846 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2018-12-02 12:24:23,224 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2018-12-02 12:24:23,405 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2018-12-02 12:24:23,572 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2018-12-02 12:24:24,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:24:24,913 INFO L93 Difference]: Finished difference Result 2301 states and 5911 transitions. [2018-12-02 12:24:24,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-02 12:24:24,913 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 102 [2018-12-02 12:24:24,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:24:24,915 INFO L225 Difference]: With dead ends: 2301 [2018-12-02 12:24:24,915 INFO L226 Difference]: Without dead ends: 2161 [2018-12-02 12:24:24,915 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=715, Invalid=3841, Unknown=0, NotChecked=0, Total=4556 [2018-12-02 12:24:24,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2018-12-02 12:24:24,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 1822. [2018-12-02 12:24:24,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1822 states. [2018-12-02 12:24:24,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 4753 transitions. [2018-12-02 12:24:24,929 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 4753 transitions. Word has length 102 [2018-12-02 12:24:24,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:24:24,929 INFO L480 AbstractCegarLoop]: Abstraction has 1822 states and 4753 transitions. [2018-12-02 12:24:24,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-02 12:24:24,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 4753 transitions. [2018-12-02 12:24:24,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 12:24:24,931 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:24:24,931 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:24:24,931 INFO L423 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:24:24,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:24:24,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1775250509, now seen corresponding path program 3 times [2018-12-02 12:24:24,931 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:24:24,932 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:24:24,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:24,936 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:24:24,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:24:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:24:27,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:24:27,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2018-12-02 12:24:27,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-12-02 12:24:27,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-12-02 12:24:27,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1034, Unknown=0, NotChecked=0, Total=1122 [2018-12-02 12:24:27,280 INFO L87 Difference]: Start difference. First operand 1822 states and 4753 transitions. Second operand 34 states. [2018-12-02 12:24:27,969 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-12-02 12:24:28,253 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2018-12-02 12:24:28,569 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-02 12:24:28,811 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-12-02 12:24:29,089 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-12-02 12:24:29,521 WARN L180 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2018-12-02 12:24:29,777 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2018-12-02 12:24:30,046 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2018-12-02 12:24:30,884 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2018-12-02 12:24:31,082 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-02 12:24:31,371 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2018-12-02 12:24:32,493 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2018-12-02 12:24:32,880 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2018-12-02 12:24:33,066 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2018-12-02 12:24:33,234 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2018-12-02 12:24:34,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:24:34,428 INFO L93 Difference]: Finished difference Result 2315 states and 5965 transitions. [2018-12-02 12:24:34,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-02 12:24:34,428 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 102 [2018-12-02 12:24:34,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:24:34,430 INFO L225 Difference]: With dead ends: 2315 [2018-12-02 12:24:34,430 INFO L226 Difference]: Without dead ends: 2188 [2018-12-02 12:24:34,430 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=728, Invalid=3964, Unknown=0, NotChecked=0, Total=4692 [2018-12-02 12:24:34,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2018-12-02 12:24:34,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 1910. [2018-12-02 12:24:34,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1910 states. [2018-12-02 12:24:34,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 4987 transitions. [2018-12-02 12:24:34,443 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 4987 transitions. Word has length 102 [2018-12-02 12:24:34,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:24:34,444 INFO L480 AbstractCegarLoop]: Abstraction has 1910 states and 4987 transitions. [2018-12-02 12:24:34,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-12-02 12:24:34,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 4987 transitions. [2018-12-02 12:24:34,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 12:24:34,445 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:24:34,445 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:24:34,445 INFO L423 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:24:34,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:24:34,445 INFO L82 PathProgramCache]: Analyzing trace with hash -435024759, now seen corresponding path program 4 times [2018-12-02 12:24:34,445 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:24:34,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:24:34,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:34,448 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:24:34,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:24:35,991 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 29 [2018-12-02 12:24:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:24:36,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:24:36,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2018-12-02 12:24:36,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-02 12:24:36,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-02 12:24:36,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2018-12-02 12:24:36,750 INFO L87 Difference]: Start difference. First operand 1910 states and 4987 transitions. Second operand 33 states. [2018-12-02 12:24:37,754 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-12-02 12:24:37,997 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2018-12-02 12:24:38,251 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-12-02 12:24:38,491 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2018-12-02 12:24:38,765 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2018-12-02 12:24:39,028 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2018-12-02 12:24:40,134 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2018-12-02 12:24:40,704 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2018-12-02 12:24:41,196 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-12-02 12:24:41,500 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2018-12-02 12:24:42,549 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2018-12-02 12:24:42,837 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-12-02 12:24:43,310 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2018-12-02 12:24:44,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:24:44,188 INFO L93 Difference]: Finished difference Result 2447 states and 6262 transitions. [2018-12-02 12:24:44,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-12-02 12:24:44,189 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 102 [2018-12-02 12:24:44,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:24:44,190 INFO L225 Difference]: With dead ends: 2447 [2018-12-02 12:24:44,190 INFO L226 Difference]: Without dead ends: 2183 [2018-12-02 12:24:44,190 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=847, Invalid=4409, Unknown=0, NotChecked=0, Total=5256 [2018-12-02 12:24:44,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2018-12-02 12:24:44,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 1954. [2018-12-02 12:24:44,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-12-02 12:24:44,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 5064 transitions. [2018-12-02 12:24:44,204 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 5064 transitions. Word has length 102 [2018-12-02 12:24:44,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:24:44,204 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 5064 transitions. [2018-12-02 12:24:44,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-02 12:24:44,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 5064 transitions. [2018-12-02 12:24:44,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 12:24:44,205 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:24:44,205 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:24:44,205 INFO L423 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:24:44,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:24:44,206 INFO L82 PathProgramCache]: Analyzing trace with hash 537140045, now seen corresponding path program 5 times [2018-12-02 12:24:44,206 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:24:44,206 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:24:44,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:44,209 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:24:44,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:24:45,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:24:45,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:24:45,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2018-12-02 12:24:45,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-12-02 12:24:45,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-12-02 12:24:45,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=640, Unknown=0, NotChecked=0, Total=702 [2018-12-02 12:24:45,695 INFO L87 Difference]: Start difference. First operand 1954 states and 5064 transitions. Second operand 27 states. [2018-12-02 12:24:46,617 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2018-12-02 12:24:46,832 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2018-12-02 12:24:47,086 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2018-12-02 12:24:47,311 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2018-12-02 12:24:47,603 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2018-12-02 12:24:48,552 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2018-12-02 12:24:49,073 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2018-12-02 12:24:50,047 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2018-12-02 12:24:50,344 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2018-12-02 12:24:50,541 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2018-12-02 12:24:51,061 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-12-02 12:24:51,391 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2018-12-02 12:24:51,664 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-12-02 12:24:52,594 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-12-02 12:24:53,190 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2018-12-02 12:24:53,384 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2018-12-02 12:24:53,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:24:53,445 INFO L93 Difference]: Finished difference Result 2635 states and 6663 transitions. [2018-12-02 12:24:53,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-12-02 12:24:53,445 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 102 [2018-12-02 12:24:53,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:24:53,447 INFO L225 Difference]: With dead ends: 2635 [2018-12-02 12:24:53,447 INFO L226 Difference]: Without dead ends: 2214 [2018-12-02 12:24:53,447 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=712, Invalid=3448, Unknown=0, NotChecked=0, Total=4160 [2018-12-02 12:24:53,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2018-12-02 12:24:53,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1634. [2018-12-02 12:24:53,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2018-12-02 12:24:53,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 4228 transitions. [2018-12-02 12:24:53,461 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 4228 transitions. Word has length 102 [2018-12-02 12:24:53,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:24:53,461 INFO L480 AbstractCegarLoop]: Abstraction has 1634 states and 4228 transitions. [2018-12-02 12:24:53,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-12-02 12:24:53,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 4228 transitions. [2018-12-02 12:24:53,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 12:24:53,462 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:24:53,462 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:24:53,463 INFO L423 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:24:53,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:24:53,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1227855465, now seen corresponding path program 6 times [2018-12-02 12:24:53,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:24:53,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:24:53,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:53,466 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:24:53,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:24:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:24:55,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:24:55,809 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:24:55,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2018-12-02 12:24:55,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-12-02 12:24:55,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-12-02 12:24:55,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2018-12-02 12:24:55,810 INFO L87 Difference]: Start difference. First operand 1634 states and 4228 transitions. Second operand 32 states. [2018-12-02 12:24:56,381 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2018-12-02 12:24:56,985 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-02 12:24:57,259 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-12-02 12:24:57,545 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-12-02 12:24:57,762 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2018-12-02 12:24:58,014 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2018-12-02 12:24:58,284 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2018-12-02 12:24:59,433 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2018-12-02 12:24:59,929 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2018-12-02 12:25:00,128 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-12-02 12:25:00,320 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2018-12-02 12:25:00,553 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2018-12-02 12:25:01,001 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 69 [2018-12-02 12:25:01,428 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2018-12-02 12:25:01,696 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2018-12-02 12:25:02,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:25:02,980 INFO L93 Difference]: Finished difference Result 1939 states and 4894 transitions. [2018-12-02 12:25:02,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-02 12:25:02,980 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 102 [2018-12-02 12:25:02,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:25:02,981 INFO L225 Difference]: With dead ends: 1939 [2018-12-02 12:25:02,982 INFO L226 Difference]: Without dead ends: 1760 [2018-12-02 12:25:02,982 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=719, Invalid=3703, Unknown=0, NotChecked=0, Total=4422 [2018-12-02 12:25:02,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2018-12-02 12:25:02,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1640. [2018-12-02 12:25:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1640 states. [2018-12-02 12:25:02,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 4237 transitions. [2018-12-02 12:25:02,994 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 4237 transitions. Word has length 102 [2018-12-02 12:25:02,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:25:02,995 INFO L480 AbstractCegarLoop]: Abstraction has 1640 states and 4237 transitions. [2018-12-02 12:25:02,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-12-02 12:25:02,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 4237 transitions. [2018-12-02 12:25:02,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 12:25:02,996 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:25:02,996 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:25:02,996 INFO L423 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:25:02,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:25:02,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1212803365, now seen corresponding path program 7 times [2018-12-02 12:25:02,997 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:25:02,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:25:03,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:25:03,001 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:25:03,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:25:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:25:04,577 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 28 [2018-12-02 12:25:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:25:05,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:25:05,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2018-12-02 12:25:05,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-12-02 12:25:05,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-12-02 12:25:05,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2018-12-02 12:25:05,132 INFO L87 Difference]: Start difference. First operand 1640 states and 4237 transitions. Second operand 32 states. [2018-12-02 12:25:06,252 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-02 12:25:06,518 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-12-02 12:25:06,783 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-12-02 12:25:07,010 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2018-12-02 12:25:07,276 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2018-12-02 12:25:07,545 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2018-12-02 12:25:08,175 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2018-12-02 12:25:09,014 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2018-12-02 12:25:09,489 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2018-12-02 12:25:09,653 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2018-12-02 12:25:10,150 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2018-12-02 12:25:10,497 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2018-12-02 12:25:10,773 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2018-12-02 12:25:11,190 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2018-12-02 12:25:11,421 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2018-12-02 12:25:11,575 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 60 [2018-12-02 12:25:12,576 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2018-12-02 12:25:12,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:25:12,856 INFO L93 Difference]: Finished difference Result 1895 states and 4796 transitions. [2018-12-02 12:25:12,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-02 12:25:12,857 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 102 [2018-12-02 12:25:12,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:25:12,858 INFO L225 Difference]: With dead ends: 1895 [2018-12-02 12:25:12,858 INFO L226 Difference]: Without dead ends: 1755 [2018-12-02 12:25:12,858 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=737, Invalid=3685, Unknown=0, NotChecked=0, Total=4422 [2018-12-02 12:25:12,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2018-12-02 12:25:12,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1642. [2018-12-02 12:25:12,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2018-12-02 12:25:12,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 4240 transitions. [2018-12-02 12:25:12,870 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 4240 transitions. Word has length 102 [2018-12-02 12:25:12,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:25:12,870 INFO L480 AbstractCegarLoop]: Abstraction has 1642 states and 4240 transitions. [2018-12-02 12:25:12,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-12-02 12:25:12,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 4240 transitions. [2018-12-02 12:25:12,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 12:25:12,871 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:25:12,871 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:25:12,871 INFO L423 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:25:12,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:25:12,871 INFO L82 PathProgramCache]: Analyzing trace with hash -787254771, now seen corresponding path program 8 times [2018-12-02 12:25:12,871 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:25:12,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:25:12,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:25:12,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:25:12,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:25:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:25:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:25:15,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:25:15,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2018-12-02 12:25:15,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-12-02 12:25:15,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-12-02 12:25:15,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1036, Unknown=0, NotChecked=0, Total=1122 [2018-12-02 12:25:15,070 INFO L87 Difference]: Start difference. First operand 1642 states and 4240 transitions. Second operand 34 states. [2018-12-02 12:25:16,181 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-12-02 12:25:16,444 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2018-12-02 12:25:16,713 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-12-02 12:25:16,951 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2018-12-02 12:25:17,239 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2018-12-02 12:25:17,526 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2018-12-02 12:25:18,763 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2018-12-02 12:25:19,105 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2018-12-02 12:25:19,410 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2018-12-02 12:25:19,759 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2018-12-02 12:25:20,182 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2018-12-02 12:25:20,355 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2018-12-02 12:25:20,687 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 68 [2018-12-02 12:25:21,012 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2018-12-02 12:25:22,353 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2018-12-02 12:25:22,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:25:22,832 INFO L93 Difference]: Finished difference Result 1972 states and 4919 transitions. [2018-12-02 12:25:22,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-12-02 12:25:22,832 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 102 [2018-12-02 12:25:22,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:25:22,833 INFO L225 Difference]: With dead ends: 1972 [2018-12-02 12:25:22,833 INFO L226 Difference]: Without dead ends: 1845 [2018-12-02 12:25:22,833 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 965 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=849, Invalid=4263, Unknown=0, NotChecked=0, Total=5112 [2018-12-02 12:25:22,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2018-12-02 12:25:22,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1646. [2018-12-02 12:25:22,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-12-02 12:25:22,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 4246 transitions. [2018-12-02 12:25:22,846 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 4246 transitions. Word has length 102 [2018-12-02 12:25:22,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:25:22,846 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 4246 transitions. [2018-12-02 12:25:22,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-12-02 12:25:22,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 4246 transitions. [2018-12-02 12:25:22,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 12:25:22,847 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:25:22,847 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:25:22,847 INFO L423 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:25:22,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:25:22,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1722602445, now seen corresponding path program 1 times [2018-12-02 12:25:22,847 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:25:22,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:25:22,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:25:22,850 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 12:25:22,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:25:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:25:23,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:25:23,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:25:23,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-12-02 12:25:23,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-02 12:25:23,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-02 12:25:23,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2018-12-02 12:25:23,525 INFO L87 Difference]: Start difference. First operand 1646 states and 4246 transitions. Second operand 20 states. [2018-12-02 12:25:24,999 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-12-02 12:25:25,146 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2018-12-02 12:25:25,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:25:25,401 INFO L93 Difference]: Finished difference Result 2413 states and 6129 transitions. [2018-12-02 12:25:25,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-02 12:25:25,401 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 102 [2018-12-02 12:25:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:25:25,404 INFO L225 Difference]: With dead ends: 2413 [2018-12-02 12:25:25,404 INFO L226 Difference]: Without dead ends: 2378 [2018-12-02 12:25:25,404 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=382, Invalid=878, Unknown=0, NotChecked=0, Total=1260 [2018-12-02 12:25:25,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2018-12-02 12:25:25,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 1914. [2018-12-02 12:25:25,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2018-12-02 12:25:25,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 4893 transitions. [2018-12-02 12:25:25,420 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 4893 transitions. Word has length 102 [2018-12-02 12:25:25,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:25:25,420 INFO L480 AbstractCegarLoop]: Abstraction has 1914 states and 4893 transitions. [2018-12-02 12:25:25,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-02 12:25:25,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 4893 transitions. [2018-12-02 12:25:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-02 12:25:25,422 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:25:25,422 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:25:25,423 INFO L423 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:25:25,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:25:25,423 INFO L82 PathProgramCache]: Analyzing trace with hash -309227767, now seen corresponding path program 9 times [2018-12-02 12:25:25,423 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 12:25:25,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 12:25:25,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:25:25,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:25:25,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:25:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:25:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:25:25,468 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 12:25:25,513 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-02 12:25:25,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:25:25 BasicIcfg [2018-12-02 12:25:25,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 12:25:25,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 12:25:25,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 12:25:25,515 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 12:25:25,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:21:05" (3/4) ... [2018-12-02 12:25:25,517 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 12:25:25,562 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5c378fab-16a4-4e7b-aac8-0daa7c6ffef4/bin-2019/uautomizer/witness.graphml [2018-12-02 12:25:25,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 12:25:25,563 INFO L168 Benchmark]: Toolchain (without parser) took 261257.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 949.6 MB in the beginning and 884.1 MB in the end (delta: 65.5 MB). Peak memory consumption was 207.0 MB. Max. memory is 11.5 GB. [2018-12-02 12:25:25,563 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:25:25,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -81.6 MB). Peak memory consumption was 86.3 MB. Max. memory is 11.5 GB. [2018-12-02 12:25:25,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 12:25:25,564 INFO L168 Benchmark]: Boogie Preprocessor took 21.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 12:25:25,564 INFO L168 Benchmark]: RCFGBuilder took 382.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 978.1 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. [2018-12-02 12:25:25,564 INFO L168 Benchmark]: TraceAbstraction took 260127.04 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -11.5 MB). Free memory was 978.1 MB in the beginning and 903.7 MB in the end (delta: 74.4 MB). Peak memory consumption was 62.8 MB. Max. memory is 11.5 GB. [2018-12-02 12:25:25,564 INFO L168 Benchmark]: Witness Printer took 47.79 ms. Allocated memory is still 1.2 GB. Free memory was 903.7 MB in the beginning and 884.1 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-12-02 12:25:25,565 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 639.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -81.6 MB). Peak memory consumption was 86.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 382.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 978.1 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 260127.04 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -11.5 MB). Free memory was 978.1 MB in the beginning and 903.7 MB in the end (delta: 74.4 MB). Peak memory consumption was 62.8 MB. Max. memory is 11.5 GB. * Witness Printer took 47.79 ms. Allocated memory is still 1.2 GB. Free memory was 903.7 MB in the beginning and 884.1 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3772]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3774] -1 pthread_t t1,t2; VAL [t1={69:0}, t2={60:0}] [L3791] -1 struct device *my_dev; VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3839] -1 return 0; VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3847] -1 int ret = my_drv_init(); VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3848] COND TRUE -1 ret==0 VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3849] -1 int probe_ret; VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3850] -1 struct my_data data; VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3809] -1 data->shared.a = 0 VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3810] -1 data->shared.b = 0 VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3811] -1 data->shared.a VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3772] COND FALSE -1 !(!expression) VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3812] -1 data->shared.b VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3772] COND FALSE -1 !(!expression) VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3814] -1 int res = __VERIFIER_nondet_int(); VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3815] COND FALSE -1 !(\read(res)) VAL [my_dev={0:0}, t1={69:0}, t2={60:0}] [L3819] -1 my_dev = &data->dev VAL [my_dev={63:40}, t1={69:0}, t2={60:0}] [L3822] FCALL, FORK -1 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3794] 0 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3795] 0 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3795] 0 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3799] 0 data->shared.a = 1 VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3800] 0 data->shared.b VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3823] FCALL, FORK -1 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3824] -1 return 0; VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3794] 1 struct my_data *data; VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3851] -1 probe_ret = my_drv_probe(&data) VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3852] COND TRUE -1 probe_ret==0 VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3832] -1 void *status; VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3795] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3833] -1 \read(t1) VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3795] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3799] 1 data->shared.a = 1 VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3800] EXPR 1 data->shared.b VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3800] 1 data->shared.b = data->shared.b + 1 VAL [__mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3802] 1 return 0; VAL [\result={0:0}, __mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3800] 0 data->shared.b = data->shared.b + 1 VAL [\result={0:0}, __mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, data->shared.b=0, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3802] 0 return 0; VAL [\result={0:0}, __mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3833] FCALL, JOIN 0 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3834] -1 \read(t2) VAL [\result={0:0}, __mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3834] FCALL, JOIN 1 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3854] -1 data.shared.a VAL [\result={0:0}, __mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3772] COND FALSE -1 !(!expression) VAL [\result={0:0}, __mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3855] -1 data.shared.b VAL [\result={0:0}, __mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3772] COND TRUE -1 !expression VAL [\result={0:0}, __mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] [L3772] -1 __VERIFIER_error() VAL [\result={0:0}, __mptr={63:40}, arg={0:0}, arg={0:0}, data={63:0}, my_dev={63:40}, t1={69:0}, t2={60:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 148 locations, 6 error locations. UNSAFE Result, 260.0s OverallTime, 48 OverallIterations, 1 TraceHistogramMax, 208.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8447 SDtfs, 38256 SDslu, 71223 SDs, 0 SdLazy, 42173 SolverSat, 4563 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 49.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2187 GetRequests, 116 SyntacticMatches, 70 SemanticMatches, 2001 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15758 ImplicationChecksByTransitivity, 196.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5125occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 47 MinimizatonAttempts, 62180 StatesRemovedByMinimization, 46 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 48.4s InterpolantComputationTime, 4439 NumberOfCodeBlocks, 4439 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 4290 ConstructedInterpolants, 0 QuantifiedInterpolants, 6931172 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...