./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:48:00,066 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:48:00,067 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:48:00,076 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:48:00,076 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:48:00,077 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:48:00,078 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:48:00,079 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:48:00,080 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:48:00,080 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:48:00,081 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:48:00,081 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:48:00,082 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:48:00,083 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:48:00,084 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:48:00,084 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:48:00,085 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:48:00,086 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:48:00,087 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:48:00,088 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:48:00,089 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:48:00,090 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:48:00,091 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:48:00,092 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:48:00,092 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:48:00,092 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:48:00,093 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:48:00,094 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:48:00,094 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:48:00,095 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:48:00,095 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:48:00,096 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:48:00,096 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:48:00,096 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:48:00,097 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:48:00,097 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:48:00,097 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 14:48:00,108 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:48:00,108 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:48:00,109 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:48:00,109 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:48:00,109 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:48:00,110 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:48:00,110 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:48:00,110 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:48:00,110 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:48:00,110 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:48:00,110 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:48:00,110 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:48:00,111 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:48:00,111 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:48:00,111 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:48:00,111 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:48:00,111 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:48:00,111 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:48:00,111 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:48:00,112 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:48:00,112 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:48:00,112 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:48:00,112 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:48:00,112 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:48:00,112 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:48:00,112 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:48:00,113 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:48:00,113 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:48:00,113 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:48:00,113 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:48:00,113 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:48:00,114 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:48:00,114 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_85dfb73a-539e-4a74-bbec-d340fe1a50df/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(F end) ) 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 -> 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb [2018-11-18 14:48:00,135 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:48:00,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:48:00,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:48:00,146 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:48:00,146 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:48:00,146 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 14:48:00,182 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/data/8bbcbb001/29cb3623003e4c72801e7adfd47cc825/FLAGac38c7458 [2018-11-18 14:48:00,567 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:48:00,568 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 14:48:00,573 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/data/8bbcbb001/29cb3623003e4c72801e7adfd47cc825/FLAGac38c7458 [2018-11-18 14:48:00,580 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/data/8bbcbb001/29cb3623003e4c72801e7adfd47cc825 [2018-11-18 14:48:00,582 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:48:00,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:48:00,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:48:00,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:48:00,585 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:48:00,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:48:00" (1/1) ... [2018-11-18 14:48:00,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3275144b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00, skipping insertion in model container [2018-11-18 14:48:00,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:48:00" (1/1) ... [2018-11-18 14:48:00,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:48:00,609 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:48:00,714 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:48:00,716 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:48:00,728 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:48:00,736 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:48:00,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00 WrapperNode [2018-11-18 14:48:00,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:48:00,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:48:00,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:48:00,737 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:48:00,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00" (1/1) ... [2018-11-18 14:48:00,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00" (1/1) ... [2018-11-18 14:48:00,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:48:00,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:48:00,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:48:00,756 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:48:00,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00" (1/1) ... [2018-11-18 14:48:00,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00" (1/1) ... [2018-11-18 14:48:00,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00" (1/1) ... [2018-11-18 14:48:00,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00" (1/1) ... [2018-11-18 14:48:00,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00" (1/1) ... [2018-11-18 14:48:00,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00" (1/1) ... [2018-11-18 14:48:00,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00" (1/1) ... [2018-11-18 14:48:00,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:48:00,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:48:00,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:48:00,770 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:48:00,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:48:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:48:00,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:48:00,965 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:48:00,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:48:00 BoogieIcfgContainer [2018-11-18 14:48:00,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:48:00,966 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:48:00,966 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:48:00,969 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:48:00,970 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:48:00,970 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:48:00" (1/3) ... [2018-11-18 14:48:00,971 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2308cf02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:48:00, skipping insertion in model container [2018-11-18 14:48:00,971 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:48:00,971 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:00" (2/3) ... [2018-11-18 14:48:00,971 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2308cf02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:48:00, skipping insertion in model container [2018-11-18 14:48:00,971 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:48:00,971 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:48:00" (3/3) ... [2018-11-18 14:48:00,973 INFO L375 chiAutomizerObserver]: Analyzing ICFG test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 14:48:01,017 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:48:01,018 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:48:01,018 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:48:01,018 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:48:01,018 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:48:01,018 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:48:01,018 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:48:01,018 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:48:01,018 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:48:01,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2018-11-18 14:48:01,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2018-11-18 14:48:01,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:48:01,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:48:01,048 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 14:48:01,049 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:48:01,049 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:48:01,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2018-11-18 14:48:01,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2018-11-18 14:48:01,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:48:01,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:48:01,050 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 14:48:01,050 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:48:01,055 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;havoc main_~cond~0; 20#L83-1true [2018-11-18 14:48:01,056 INFO L796 eck$LassoCheckResult]: Loop: 20#L83-1true assume true; 25#L24-1true assume !false;main_~cond~0 := main_#t~nondet5;havoc main_#t~nondet5; 17#L26true assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 22#L41true assume 0 != main_~p1~0;main_~lk1~0 := 1; 19#L41-2true assume 0 != main_~p2~0;main_~lk2~0 := 1; 11#L45-1true assume 0 != main_~p3~0;main_~lk3~0 := 1; 4#L49-1true assume 0 != main_~p4~0;main_~lk4~0 := 1; 7#L53-1true assume 0 != main_~p5~0;main_~lk5~0 := 1; 26#L57-1true assume !(0 != main_~p1~0); 21#L63-1true assume !(0 != main_~p2~0); 27#L68-1true assume !(0 != main_~p3~0); 5#L73-1true assume !(0 != main_~p4~0); 13#L78-1true assume !(0 != main_~p5~0); 20#L83-1true [2018-11-18 14:48:01,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,061 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 14:48:01,063 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:48:01,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,133 INFO L82 PathProgramCache]: Analyzing trace with hash 30320665, now seen corresponding path program 1 times [2018-11-18 14:48:01,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:48:01,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:48:01,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:48:01,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:48:01,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:48:01,192 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:48:01,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:48:01,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:48:01,206 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-11-18 14:48:01,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:48:01,231 INFO L93 Difference]: Finished difference Result 47 states and 72 transitions. [2018-11-18 14:48:01,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:48:01,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 72 transitions. [2018-11-18 14:48:01,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2018-11-18 14:48:01,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 37 states and 55 transitions. [2018-11-18 14:48:01,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2018-11-18 14:48:01,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2018-11-18 14:48:01,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 55 transitions. [2018-11-18 14:48:01,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:48:01,241 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 55 transitions. [2018-11-18 14:48:01,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 55 transitions. [2018-11-18 14:48:01,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 14:48:01,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 14:48:01,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 55 transitions. [2018-11-18 14:48:01,266 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 55 transitions. [2018-11-18 14:48:01,266 INFO L608 BuchiCegarLoop]: Abstraction has 37 states and 55 transitions. [2018-11-18 14:48:01,266 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:48:01,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 55 transitions. [2018-11-18 14:48:01,267 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2018-11-18 14:48:01,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:48:01,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:48:01,267 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 14:48:01,268 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:48:01,268 INFO L794 eck$LassoCheckResult]: Stem: 101#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 98#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;havoc main_~cond~0; 99#L83-1 [2018-11-18 14:48:01,268 INFO L796 eck$LassoCheckResult]: Loop: 99#L83-1 assume true; 110#L24-1 assume !false;main_~cond~0 := main_#t~nondet5;havoc main_#t~nondet5; 109#L26 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 108#L41 assume !(0 != main_~p1~0); 89#L41-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 90#L45-1 assume 0 != main_~p3~0;main_~lk3~0 := 1; 107#L49-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 106#L53-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 104#L57-1 assume !(0 != main_~p1~0); 105#L63-1 assume !(0 != main_~p2~0); 116#L68-1 assume !(0 != main_~p3~0); 114#L73-1 assume !(0 != main_~p4~0); 112#L78-1 assume !(0 != main_~p5~0); 99#L83-1 [2018-11-18 14:48:01,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,268 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-18 14:48:01,268 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,268 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:48:01,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,272 INFO L82 PathProgramCache]: Analyzing trace with hash -362706345, now seen corresponding path program 1 times [2018-11-18 14:48:01,272 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,272 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,273 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:48:01,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:48:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:48:01,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:48:01,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:48:01,289 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:48:01,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:48:01,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:48:01,290 INFO L87 Difference]: Start difference. First operand 37 states and 55 transitions. cyclomatic complexity: 20 Second operand 3 states. [2018-11-18 14:48:01,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:48:01,311 INFO L93 Difference]: Finished difference Result 70 states and 102 transitions. [2018-11-18 14:48:01,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:48:01,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 102 transitions. [2018-11-18 14:48:01,313 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 68 [2018-11-18 14:48:01,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 70 states and 102 transitions. [2018-11-18 14:48:01,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 70 [2018-11-18 14:48:01,314 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2018-11-18 14:48:01,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 102 transitions. [2018-11-18 14:48:01,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:48:01,315 INFO L705 BuchiCegarLoop]: Abstraction has 70 states and 102 transitions. [2018-11-18 14:48:01,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states and 102 transitions. [2018-11-18 14:48:01,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-11-18 14:48:01,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-11-18 14:48:01,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 102 transitions. [2018-11-18 14:48:01,319 INFO L728 BuchiCegarLoop]: Abstraction has 70 states and 102 transitions. [2018-11-18 14:48:01,319 INFO L608 BuchiCegarLoop]: Abstraction has 70 states and 102 transitions. [2018-11-18 14:48:01,319 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 14:48:01,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 102 transitions. [2018-11-18 14:48:01,320 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 68 [2018-11-18 14:48:01,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:48:01,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:48:01,320 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 14:48:01,320 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:48:01,320 INFO L794 eck$LassoCheckResult]: Stem: 215#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 211#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;havoc main_~cond~0; 212#L83-1 [2018-11-18 14:48:01,320 INFO L796 eck$LassoCheckResult]: Loop: 212#L83-1 assume true; 228#L24-1 assume !false;main_~cond~0 := main_#t~nondet5;havoc main_#t~nondet5; 226#L26 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 223#L41 assume !(0 != main_~p1~0); 224#L41-2 assume !(0 != main_~p2~0); 251#L45-1 assume 0 != main_~p3~0;main_~lk3~0 := 1; 249#L49-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 247#L53-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 245#L57-1 assume !(0 != main_~p1~0); 243#L63-1 assume !(0 != main_~p2~0); 241#L68-1 assume !(0 != main_~p3~0); 237#L73-1 assume !(0 != main_~p4~0); 233#L78-1 assume !(0 != main_~p5~0); 212#L83-1 [2018-11-18 14:48:01,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,320 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2018-11-18 14:48:01,321 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:48:01,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,324 INFO L82 PathProgramCache]: Analyzing trace with hash 317352025, now seen corresponding path program 1 times [2018-11-18 14:48:01,324 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,325 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:48:01,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:48:01,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:48:01,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:48:01,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:48:01,349 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:48:01,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:48:01,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:48:01,349 INFO L87 Difference]: Start difference. First operand 70 states and 102 transitions. cyclomatic complexity: 36 Second operand 3 states. [2018-11-18 14:48:01,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:48:01,361 INFO L93 Difference]: Finished difference Result 134 states and 190 transitions. [2018-11-18 14:48:01,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:48:01,361 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 190 transitions. [2018-11-18 14:48:01,363 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 132 [2018-11-18 14:48:01,363 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 134 states and 190 transitions. [2018-11-18 14:48:01,363 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2018-11-18 14:48:01,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2018-11-18 14:48:01,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 190 transitions. [2018-11-18 14:48:01,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:48:01,364 INFO L705 BuchiCegarLoop]: Abstraction has 134 states and 190 transitions. [2018-11-18 14:48:01,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 190 transitions. [2018-11-18 14:48:01,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-11-18 14:48:01,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-18 14:48:01,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 190 transitions. [2018-11-18 14:48:01,370 INFO L728 BuchiCegarLoop]: Abstraction has 134 states and 190 transitions. [2018-11-18 14:48:01,370 INFO L608 BuchiCegarLoop]: Abstraction has 134 states and 190 transitions. [2018-11-18 14:48:01,370 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 14:48:01,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 134 states and 190 transitions. [2018-11-18 14:48:01,372 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 132 [2018-11-18 14:48:01,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:48:01,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:48:01,372 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 14:48:01,372 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:48:01,372 INFO L794 eck$LassoCheckResult]: Stem: 424#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 421#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;havoc main_~cond~0; 422#L83-1 [2018-11-18 14:48:01,373 INFO L796 eck$LassoCheckResult]: Loop: 422#L83-1 assume true; 447#L24-1 assume !false;main_~cond~0 := main_#t~nondet5;havoc main_#t~nondet5; 441#L26 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 442#L41 assume !(0 != main_~p1~0); 485#L41-2 assume !(0 != main_~p2~0); 482#L45-1 assume !(0 != main_~p3~0); 480#L49-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 478#L53-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 476#L57-1 assume !(0 != main_~p1~0); 473#L63-1 assume !(0 != main_~p2~0); 470#L68-1 assume !(0 != main_~p3~0); 471#L73-1 assume !(0 != main_~p4~0); 451#L78-1 assume !(0 != main_~p5~0); 422#L83-1 [2018-11-18 14:48:01,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,373 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2018-11-18 14:48:01,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:48:01,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,376 INFO L82 PathProgramCache]: Analyzing trace with hash -491994601, now seen corresponding path program 1 times [2018-11-18 14:48:01,376 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,377 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:48:01,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:48:01,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:48:01,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:48:01,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:48:01,388 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:48:01,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:48:01,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:48:01,388 INFO L87 Difference]: Start difference. First operand 134 states and 190 transitions. cyclomatic complexity: 64 Second operand 3 states. [2018-11-18 14:48:01,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:48:01,404 INFO L93 Difference]: Finished difference Result 258 states and 354 transitions. [2018-11-18 14:48:01,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:48:01,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 258 states and 354 transitions. [2018-11-18 14:48:01,408 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 256 [2018-11-18 14:48:01,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 258 states to 258 states and 354 transitions. [2018-11-18 14:48:01,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 258 [2018-11-18 14:48:01,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 258 [2018-11-18 14:48:01,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 258 states and 354 transitions. [2018-11-18 14:48:01,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:48:01,412 INFO L705 BuchiCegarLoop]: Abstraction has 258 states and 354 transitions. [2018-11-18 14:48:01,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states and 354 transitions. [2018-11-18 14:48:01,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2018-11-18 14:48:01,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2018-11-18 14:48:01,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 354 transitions. [2018-11-18 14:48:01,422 INFO L728 BuchiCegarLoop]: Abstraction has 258 states and 354 transitions. [2018-11-18 14:48:01,422 INFO L608 BuchiCegarLoop]: Abstraction has 258 states and 354 transitions. [2018-11-18 14:48:01,422 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 14:48:01,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 354 transitions. [2018-11-18 14:48:01,424 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 256 [2018-11-18 14:48:01,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:48:01,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:48:01,424 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 14:48:01,425 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:48:01,425 INFO L794 eck$LassoCheckResult]: Stem: 826#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 822#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;havoc main_~cond~0; 823#L83-1 [2018-11-18 14:48:01,425 INFO L796 eck$LassoCheckResult]: Loop: 823#L83-1 assume true; 894#L24-1 assume !false;main_~cond~0 := main_#t~nondet5;havoc main_#t~nondet5; 895#L26 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 880#L41 assume !(0 != main_~p1~0); 882#L41-2 assume !(0 != main_~p2~0); 860#L45-1 assume !(0 != main_~p3~0); 862#L49-1 assume !(0 != main_~p4~0); 929#L53-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 927#L57-1 assume !(0 != main_~p1~0); 925#L63-1 assume !(0 != main_~p2~0); 922#L68-1 assume !(0 != main_~p3~0); 920#L73-1 assume !(0 != main_~p4~0); 909#L78-1 assume !(0 != main_~p5~0); 823#L83-1 [2018-11-18 14:48:01,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,425 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2018-11-18 14:48:01,425 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:48:01,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1283012761, now seen corresponding path program 1 times [2018-11-18 14:48:01,428 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,428 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:48:01,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:48:01,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:48:01,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:48:01,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:48:01,448 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 14:48:01,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:48:01,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:48:01,449 INFO L87 Difference]: Start difference. First operand 258 states and 354 transitions. cyclomatic complexity: 112 Second operand 3 states. [2018-11-18 14:48:01,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:48:01,475 INFO L93 Difference]: Finished difference Result 498 states and 658 transitions. [2018-11-18 14:48:01,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:48:01,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 498 states and 658 transitions. [2018-11-18 14:48:01,479 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 496 [2018-11-18 14:48:01,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 498 states to 498 states and 658 transitions. [2018-11-18 14:48:01,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 498 [2018-11-18 14:48:01,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 498 [2018-11-18 14:48:01,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 498 states and 658 transitions. [2018-11-18 14:48:01,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:48:01,485 INFO L705 BuchiCegarLoop]: Abstraction has 498 states and 658 transitions. [2018-11-18 14:48:01,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states and 658 transitions. [2018-11-18 14:48:01,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2018-11-18 14:48:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2018-11-18 14:48:01,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 658 transitions. [2018-11-18 14:48:01,500 INFO L728 BuchiCegarLoop]: Abstraction has 498 states and 658 transitions. [2018-11-18 14:48:01,500 INFO L608 BuchiCegarLoop]: Abstraction has 498 states and 658 transitions. [2018-11-18 14:48:01,500 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-18 14:48:01,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 498 states and 658 transitions. [2018-11-18 14:48:01,502 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 496 [2018-11-18 14:48:01,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:48:01,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:48:01,503 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 14:48:01,503 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:48:01,503 INFO L794 eck$LassoCheckResult]: Stem: 1587#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1583#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~lk5~0;havoc main_~cond~0; 1584#L83-1 [2018-11-18 14:48:01,503 INFO L796 eck$LassoCheckResult]: Loop: 1584#L83-1 assume true; 1785#L24-1 assume !false;main_~cond~0 := main_#t~nondet5;havoc main_#t~nondet5; 1784#L26 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 1783#L41 assume !(0 != main_~p1~0); 1781#L41-2 assume !(0 != main_~p2~0); 1780#L45-1 assume !(0 != main_~p3~0); 1779#L49-1 assume !(0 != main_~p4~0); 1777#L53-1 assume !(0 != main_~p5~0); 1774#L57-1 assume !(0 != main_~p1~0); 1775#L63-1 assume !(0 != main_~p2~0); 1790#L68-1 assume !(0 != main_~p3~0); 1789#L73-1 assume !(0 != main_~p4~0); 1786#L78-1 assume !(0 != main_~p5~0); 1584#L83-1 [2018-11-18 14:48:01,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,503 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2018-11-18 14:48:01,503 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:48:01,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1340271063, now seen corresponding path program 1 times [2018-11-18 14:48:01,505 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,505 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,506 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:48:01,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:01,515 INFO L82 PathProgramCache]: Analyzing trace with hash 324178261, now seen corresponding path program 1 times [2018-11-18 14:48:01,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:01,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:01,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:48:01,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:01,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:48:01 BoogieIcfgContainer [2018-11-18 14:48:01,606 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:48:01,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:48:01,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:48:01,606 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:48:01,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:48:00" (3/4) ... [2018-11-18 14:48:01,609 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 14:48:01,638 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_85dfb73a-539e-4a74-bbec-d340fe1a50df/bin-2019/uautomizer/witness.graphml [2018-11-18 14:48:01,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:48:01,639 INFO L168 Benchmark]: Toolchain (without parser) took 1056.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -97.7 MB). Peak memory consumption was 53.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:48:01,640 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:48:01,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.34 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:48:01,640 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.80 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:48:01,641 INFO L168 Benchmark]: Boogie Preprocessor took 13.86 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:48:01,641 INFO L168 Benchmark]: RCFGBuilder took 195.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:48:01,641 INFO L168 Benchmark]: BuchiAutomizer took 639.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:48:01,641 INFO L168 Benchmark]: Witness Printer took 32.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:48:01,643 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.34 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.80 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.86 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 195.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 639.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. * Witness Printer took 32.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 498 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 498 states and ocurred in iteration 5. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 227 SDtfs, 114 SDslu, 128 SDs, 0 SdLazy, 25 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI5 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 24]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {p1=0, \result=0, p3=0, p2=0, p5=0, p4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e204109=0, lk3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70063b1d=0, lk4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a6283a5=1, lk5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3701333b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74bdd860=0, lk1=0, lk2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ba6e7a9=0, cond=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 24]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int p1 = __VERIFIER_nondet_int(); [L7] int lk1; [L9] int p2 = __VERIFIER_nondet_int(); [L10] int lk2; [L12] int p3 = __VERIFIER_nondet_int(); [L13] int lk3; [L15] int p4 = __VERIFIER_nondet_int(); [L16] int lk4; [L18] int p5 = __VERIFIER_nondet_int(); [L19] int lk5; [L22] int cond; Loop: [L24] COND TRUE 1 [L25] cond = __VERIFIER_nondet_int() [L26] COND FALSE !(cond == 0) [L29] lk1 = 0 [L31] lk2 = 0 [L33] lk3 = 0 [L35] lk4 = 0 [L37] lk5 = 0 [L41] COND FALSE !(p1 != 0) [L45] COND FALSE !(p2 != 0) [L49] COND FALSE !(p3 != 0) [L53] COND FALSE !(p4 != 0) [L57] COND FALSE !(p5 != 0) [L63] COND FALSE !(p1 != 0) [L68] COND FALSE !(p2 != 0) [L73] COND FALSE !(p3 != 0) [L78] COND FALSE !(p4 != 0) [L83] COND FALSE !(p5 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...