./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.BOUNDED-6.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/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 a90b25a4abf3a535ee7c4ba6368944b8e32b5ef5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:47:06,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:47:06,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:47:06,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:47:06,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:47:06,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:47:06,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:47:06,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:47:06,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:47:06,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:47:06,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:47:06,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:47:06,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:47:06,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:47:06,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:47:06,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:47:06,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:47:06,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:47:06,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:47:06,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:47:06,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:47:06,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:47:06,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:47:06,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:47:06,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:47:06,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:47:06,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:47:06,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:47:06,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:47:06,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:47:06,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:47:06,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:47:06,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:47:06,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:47:06,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:47:06,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:47:06,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:47:06,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:47:06,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:47:06,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:47:06,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:47:06,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:47:06,440 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:47:06,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:47:06,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:47:06,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:47:06,441 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:47:06,442 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:47:06,442 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:47:06,442 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:47:06,442 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:47:06,442 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:47:06,443 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:47:06,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:47:06,443 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:47:06,443 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:47:06,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:47:06,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:47:06,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:47:06,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:47:06,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:47:06,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:47:06,445 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:47:06,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:47:06,445 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:47:06,445 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:47:06,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:47:06,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:47:06,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:47:06,446 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:47:06,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:47:06,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:47:06,447 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:47:06,447 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:47:06,448 INFO L138 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/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(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 -> a90b25a4abf3a535ee7c4ba6368944b8e32b5ef5 [2019-11-25 08:47:06,597 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:47:06,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:47:06,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:47:06,615 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:47:06,615 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:47:06,616 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.BOUNDED-6.pals.c [2019-11-25 08:47:06,662 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/data/3f717be01/7e45cf710f4f4dc6a4efb35fb3ff8bee/FLAG940dfdb6d [2019-11-25 08:47:07,082 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:47:07,083 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.BOUNDED-6.pals.c [2019-11-25 08:47:07,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/data/3f717be01/7e45cf710f4f4dc6a4efb35fb3ff8bee/FLAG940dfdb6d [2019-11-25 08:47:07,395 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/data/3f717be01/7e45cf710f4f4dc6a4efb35fb3ff8bee [2019-11-25 08:47:07,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:47:07,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:47:07,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:07,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:47:07,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:47:07,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:07" (1/1) ... [2019-11-25 08:47:07,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1335521e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07, skipping insertion in model container [2019-11-25 08:47:07,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:07" (1/1) ... [2019-11-25 08:47:07,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:47:07,466 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:47:07,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:07,781 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:47:07,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:07,830 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:47:07,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07 WrapperNode [2019-11-25 08:47:07,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:07,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:07,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:47:07,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:47:07,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07" (1/1) ... [2019-11-25 08:47:07,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07" (1/1) ... [2019-11-25 08:47:07,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:07,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:47:07,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:47:07,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:47:07,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07" (1/1) ... [2019-11-25 08:47:07,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07" (1/1) ... [2019-11-25 08:47:07,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07" (1/1) ... [2019-11-25 08:47:07,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07" (1/1) ... [2019-11-25 08:47:07,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07" (1/1) ... [2019-11-25 08:47:07,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07" (1/1) ... [2019-11-25 08:47:07,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07" (1/1) ... [2019-11-25 08:47:07,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:47:07,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:47:07,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:47:07,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:47:07,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/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 [2019-11-25 08:47:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:47:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:47:08,375 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:47:08,375 INFO L284 CfgBuilder]: Removed 17 assume(true) statements. [2019-11-25 08:47:08,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:08 BoogieIcfgContainer [2019-11-25 08:47:08,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:47:08,377 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:47:08,377 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:47:08,381 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:47:08,381 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:08,382 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:47:07" (1/3) ... [2019-11-25 08:47:08,383 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@658fc6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:47:08, skipping insertion in model container [2019-11-25 08:47:08,383 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:08,386 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:07" (2/3) ... [2019-11-25 08:47:08,386 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@658fc6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:47:08, skipping insertion in model container [2019-11-25 08:47:08,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:08,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:08" (3/3) ... [2019-11-25 08:47:08,388 INFO L371 chiAutomizerObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c [2019-11-25 08:47:08,427 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:47:08,427 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:47:08,427 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:47:08,427 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:47:08,428 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:47:08,428 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:47:08,428 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:47:08,428 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:47:08,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states. [2019-11-25 08:47:08,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2019-11-25 08:47:08,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:08,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:08,475 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-25 08:47:08,476 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:08,476 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:47:08,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states. [2019-11-25 08:47:08,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2019-11-25 08:47:08,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:08,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:08,481 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-25 08:47:08,482 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:08,488 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue ~r1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~mode1~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~mode2~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~mode3~0 := 0;~nomsg~0 := -1;~p1~0 := 0;~send1~0 := 0;~p2~0 := 0;~send2~0 := 0;~p3~0 := 0;~send3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 13#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~ret16, main_#t~ret17, main_#t~post18, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet3;havoc main_#t~nondet3;~id1~0 := main_#t~nondet4;havoc main_#t~nondet4;~st1~0 := main_#t~nondet5;havoc main_#t~nondet5;~send1~0 := main_#t~nondet6;havoc main_#t~nondet6;~mode1~0 := main_#t~nondet7;havoc main_#t~nondet7;~id2~0 := main_#t~nondet8;havoc main_#t~nondet8;~st2~0 := main_#t~nondet9;havoc main_#t~nondet9;~send2~0 := main_#t~nondet10;havoc main_#t~nondet10;~mode2~0 := main_#t~nondet11;havoc main_#t~nondet11;~id3~0 := main_#t~nondet12;havoc main_#t~nondet12;~st3~0 := main_#t~nondet13;havoc main_#t~nondet13;~send3~0 := main_#t~nondet14;havoc main_#t~nondet14;~mode3~0 := main_#t~nondet15;havoc main_#t~nondet15;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 3#L175true assume !(0 == ~r1~0);init_~tmp~0 := 0; 21#L175-1true init_#res := init_~tmp~0; 53#L240true main_#t~ret16 := init_#res;main_~i2~0 := main_#t~ret16;havoc main_#t~ret16;assume 0 != main_~i2~0;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0 := 0; 33#L300-2true [2019-11-25 08:47:08,488 INFO L796 eck$LassoCheckResult]: Loop: 33#L300-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite0, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 40#L99true assume !(0 != ~mode1~0 % 256); 6#L113true assume ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0;node1_#t~ite0 := ~send1~0; 4#L113-2true ~p1_new~0 := (if node1_#t~ite0 % 256 <= 127 then node1_#t~ite0 % 256 else node1_#t~ite0 % 256 - 256);havoc node1_#t~ite0;~mode1~0 := 1; 37#L99-2true havoc node2_#t~ite1, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 29#L125true assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 35#L128true assume !(node2_~m2~0 != ~nomsg~0); 32#L128-1true ~mode2~0 := 0; 25#L125-2true havoc node3_#t~ite2, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 36#L150true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 22#L153true assume !(node3_~m3~0 != ~nomsg~0); 18#L153-1true ~mode3~0 := 0; 12#L150-2true ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 19#L248true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 17#L248-1true check_#res := check_~tmp~1; 50#L268true main_#t~ret17 := check_#res;main_~c1~0 := main_#t~ret17;havoc main_#t~ret17;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 52#L324true assume !(0 == assert_~arg % 256); 46#L319true main_#t~post18 := main_~i2~0;main_~i2~0 := 1 + main_#t~post18;havoc main_#t~post18; 33#L300-2true [2019-11-25 08:47:08,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:08,493 INFO L82 PathProgramCache]: Analyzing trace with hash 28785120, now seen corresponding path program 1 times [2019-11-25 08:47:08,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:08,499 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583357209] [2019-11-25 08:47:08,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:08,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:08,664 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583357209] [2019-11-25 08:47:08,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:08,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:47:08,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759155714] [2019-11-25 08:47:08,671 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:47:08,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:08,671 INFO L82 PathProgramCache]: Analyzing trace with hash 2127129926, now seen corresponding path program 1 times [2019-11-25 08:47:08,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:08,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792239702] [2019-11-25 08:47:08,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:08,799 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792239702] [2019-11-25 08:47:08,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:08,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:47:08,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154887512] [2019-11-25 08:47:08,801 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:47:08,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:08,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:47:08,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:47:08,819 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 4 states. [2019-11-25 08:47:08,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:08,888 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions. [2019-11-25 08:47:08,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:47:08,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 96 transitions. [2019-11-25 08:47:08,893 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2019-11-25 08:47:08,902 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 54 states and 74 transitions. [2019-11-25 08:47:08,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2019-11-25 08:47:08,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2019-11-25 08:47:08,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 74 transitions. [2019-11-25 08:47:08,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:47:08,908 INFO L688 BuchiCegarLoop]: Abstraction has 54 states and 74 transitions. [2019-11-25 08:47:08,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 74 transitions. [2019-11-25 08:47:08,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-11-25 08:47:08,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-25 08:47:08,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions. [2019-11-25 08:47:08,943 INFO L711 BuchiCegarLoop]: Abstraction has 54 states and 74 transitions. [2019-11-25 08:47:08,943 INFO L591 BuchiCegarLoop]: Abstraction has 54 states and 74 transitions. [2019-11-25 08:47:08,943 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:47:08,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 74 transitions. [2019-11-25 08:47:08,948 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2019-11-25 08:47:08,949 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:08,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:08,951 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:08,951 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:08,952 INFO L794 eck$LassoCheckResult]: Stem: 177#ULTIMATE.startENTRY ~r1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~mode1~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~mode2~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~mode3~0 := 0;~nomsg~0 := -1;~p1~0 := 0;~send1~0 := 0;~p2~0 := 0;~send2~0 := 0;~p3~0 := 0;~send3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 153#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~ret16, main_#t~ret17, main_#t~post18, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet3;havoc main_#t~nondet3;~id1~0 := main_#t~nondet4;havoc main_#t~nondet4;~st1~0 := main_#t~nondet5;havoc main_#t~nondet5;~send1~0 := main_#t~nondet6;havoc main_#t~nondet6;~mode1~0 := main_#t~nondet7;havoc main_#t~nondet7;~id2~0 := main_#t~nondet8;havoc main_#t~nondet8;~st2~0 := main_#t~nondet9;havoc main_#t~nondet9;~send2~0 := main_#t~nondet10;havoc main_#t~nondet10;~mode2~0 := main_#t~nondet11;havoc main_#t~nondet11;~id3~0 := main_#t~nondet12;havoc main_#t~nondet12;~st3~0 := main_#t~nondet13;havoc main_#t~nondet13;~send3~0 := main_#t~nondet14;havoc main_#t~nondet14;~mode3~0 := main_#t~nondet15;havoc main_#t~nondet15;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 135#L175 assume 0 == ~r1~0; 136#L176 assume ~id1~0 >= 0; 163#L177 assume 0 == ~st1~0; 182#L178 assume ~send1~0 == ~id1~0; 147#L179 assume 0 == ~mode1~0 % 256; 148#L180 assume ~id2~0 >= 0; 173#L181 assume 0 == ~st2~0; 156#L182 assume ~send2~0 == ~id2~0; 157#L183 assume 0 == ~mode2~0 % 256; 180#L184 assume ~id3~0 >= 0; 187#L185 assume 0 == ~st3~0; 139#L186 assume ~send3~0 == ~id3~0; 140#L187 assume 0 == ~mode3~0 % 256; 164#L188 assume ~id1~0 != ~id2~0; 183#L189 assume ~id1~0 != ~id3~0; 149#L190 assume ~id2~0 != ~id3~0;init_~tmp~0 := 1; 150#L175-1 init_#res := init_~tmp~0; 160#L240 main_#t~ret16 := init_#res;main_~i2~0 := main_#t~ret16;havoc main_#t~ret16;assume 0 != main_~i2~0;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0 := 0; 175#L300-2 [2019-11-25 08:47:08,960 INFO L796 eck$LassoCheckResult]: Loop: 175#L300-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite0, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 176#L99 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 168#L103 assume !(node1_~m1~0 != ~nomsg~0); 167#L103-1 ~mode1~0 := 0; 138#L99-2 havoc node2_#t~ite1, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 171#L125 assume !(0 != ~mode2~0 % 256); 154#L138 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite1 := ~send2~0; 155#L138-2 ~p2_new~0 := (if node2_#t~ite1 % 256 <= 127 then node2_#t~ite1 % 256 else node2_#t~ite1 % 256 - 256);havoc node2_#t~ite1;~mode2~0 := 1; 165#L125-2 havoc node3_#t~ite2, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 166#L150 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 161#L153 assume !(node3_~m3~0 != ~nomsg~0); 146#L153-1 ~mode3~0 := 0; 151#L150-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 152#L248 assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 143#L248-1 check_#res := check_~tmp~1; 158#L268 main_#t~ret17 := check_#res;main_~c1~0 := main_#t~ret17;havoc main_#t~ret17;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 186#L324 assume !(0 == assert_~arg % 256); 185#L319 main_#t~post18 := main_~i2~0;main_~i2~0 := 1 + main_#t~post18;havoc main_#t~post18; 175#L300-2 [2019-11-25 08:47:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:08,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1664101251, now seen corresponding path program 1 times [2019-11-25 08:47:08,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:08,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154048902] [2019-11-25 08:47:08,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:09,079 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:09,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:09,080 INFO L82 PathProgramCache]: Analyzing trace with hash -235759546, now seen corresponding path program 1 times [2019-11-25 08:47:09,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:09,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34220110] [2019-11-25 08:47:09,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:09,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:09,191 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34220110] [2019-11-25 08:47:09,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:09,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:47:09,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729528464] [2019-11-25 08:47:09,192 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:47:09,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:09,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:47:09,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:47:09,193 INFO L87 Difference]: Start difference. First operand 54 states and 74 transitions. cyclomatic complexity: 21 Second operand 5 states. [2019-11-25 08:47:09,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:09,276 INFO L93 Difference]: Finished difference Result 57 states and 76 transitions. [2019-11-25 08:47:09,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:47:09,277 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 76 transitions. [2019-11-25 08:47:09,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2019-11-25 08:47:09,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 54 states and 71 transitions. [2019-11-25 08:47:09,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2019-11-25 08:47:09,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2019-11-25 08:47:09,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 71 transitions. [2019-11-25 08:47:09,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:47:09,282 INFO L688 BuchiCegarLoop]: Abstraction has 54 states and 71 transitions. [2019-11-25 08:47:09,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 71 transitions. [2019-11-25 08:47:09,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-11-25 08:47:09,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-25 08:47:09,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2019-11-25 08:47:09,295 INFO L711 BuchiCegarLoop]: Abstraction has 54 states and 71 transitions. [2019-11-25 08:47:09,295 INFO L591 BuchiCegarLoop]: Abstraction has 54 states and 71 transitions. [2019-11-25 08:47:09,295 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:47:09,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 71 transitions. [2019-11-25 08:47:09,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2019-11-25 08:47:09,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:09,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:09,299 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:09,301 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:09,301 INFO L794 eck$LassoCheckResult]: Stem: 300#ULTIMATE.startENTRY ~r1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~mode1~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~mode2~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~mode3~0 := 0;~nomsg~0 := -1;~p1~0 := 0;~send1~0 := 0;~p2~0 := 0;~send2~0 := 0;~p3~0 := 0;~send3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 275#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~ret16, main_#t~ret17, main_#t~post18, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet3;havoc main_#t~nondet3;~id1~0 := main_#t~nondet4;havoc main_#t~nondet4;~st1~0 := main_#t~nondet5;havoc main_#t~nondet5;~send1~0 := main_#t~nondet6;havoc main_#t~nondet6;~mode1~0 := main_#t~nondet7;havoc main_#t~nondet7;~id2~0 := main_#t~nondet8;havoc main_#t~nondet8;~st2~0 := main_#t~nondet9;havoc main_#t~nondet9;~send2~0 := main_#t~nondet10;havoc main_#t~nondet10;~mode2~0 := main_#t~nondet11;havoc main_#t~nondet11;~id3~0 := main_#t~nondet12;havoc main_#t~nondet12;~st3~0 := main_#t~nondet13;havoc main_#t~nondet13;~send3~0 := main_#t~nondet14;havoc main_#t~nondet14;~mode3~0 := main_#t~nondet15;havoc main_#t~nondet15;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 258#L175 assume 0 == ~r1~0; 259#L176 assume ~id1~0 >= 0; 286#L177 assume 0 == ~st1~0; 305#L178 assume ~send1~0 == ~id1~0; 269#L179 assume 0 == ~mode1~0 % 256; 270#L180 assume ~id2~0 >= 0; 296#L181 assume 0 == ~st2~0; 278#L182 assume ~send2~0 == ~id2~0; 279#L183 assume 0 == ~mode2~0 % 256; 303#L184 assume ~id3~0 >= 0; 310#L185 assume 0 == ~st3~0; 262#L186 assume ~send3~0 == ~id3~0; 263#L187 assume 0 == ~mode3~0 % 256; 287#L188 assume ~id1~0 != ~id2~0; 306#L189 assume ~id1~0 != ~id3~0; 271#L190 assume ~id2~0 != ~id3~0;init_~tmp~0 := 1; 272#L175-1 init_#res := init_~tmp~0; 283#L240 main_#t~ret16 := init_#res;main_~i2~0 := main_#t~ret16;havoc main_#t~ret16;assume 0 != main_~i2~0;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0 := 0; 298#L300-2 [2019-11-25 08:47:09,301 INFO L796 eck$LassoCheckResult]: Loop: 298#L300-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite0, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 299#L99 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 291#L103 assume !(node1_~m1~0 != ~nomsg~0); 290#L103-1 ~mode1~0 := 0; 261#L99-2 havoc node2_#t~ite1, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 293#L125 assume !(0 != ~mode2~0 % 256); 276#L138 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite1 := ~send2~0; 277#L138-2 ~p2_new~0 := (if node2_#t~ite1 % 256 <= 127 then node2_#t~ite1 % 256 else node2_#t~ite1 % 256 - 256);havoc node2_#t~ite1;~mode2~0 := 1; 288#L125-2 havoc node3_#t~ite2, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 289#L150 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 284#L153 assume !(node3_~m3~0 != ~nomsg~0); 268#L153-1 ~mode3~0 := 0; 273#L150-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 274#L248 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 282#L249 assume ~r1~0 >= 3; 266#L253 assume ~r1~0 < 3;check_~tmp~1 := 1; 280#L248-1 check_#res := check_~tmp~1; 281#L268 main_#t~ret17 := check_#res;main_~c1~0 := main_#t~ret17;havoc main_#t~ret17;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 309#L324 assume !(0 == assert_~arg % 256); 308#L319 main_#t~post18 := main_~i2~0;main_~i2~0 := 1 + main_#t~post18;havoc main_#t~post18; 298#L300-2 [2019-11-25 08:47:09,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:09,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1664101251, now seen corresponding path program 2 times [2019-11-25 08:47:09,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:09,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011504829] [2019-11-25 08:47:09,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:09,373 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:09,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:09,376 INFO L82 PathProgramCache]: Analyzing trace with hash -347480874, now seen corresponding path program 1 times [2019-11-25 08:47:09,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:09,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171713243] [2019-11-25 08:47:09,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:09,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:09,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171713243] [2019-11-25 08:47:09,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:09,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:47:09,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061979183] [2019-11-25 08:47:09,425 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:47:09,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:09,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:47:09,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:09,426 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. cyclomatic complexity: 18 Second operand 3 states. [2019-11-25 08:47:09,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:09,454 INFO L93 Difference]: Finished difference Result 82 states and 111 transitions. [2019-11-25 08:47:09,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:47:09,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 111 transitions. [2019-11-25 08:47:09,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2019-11-25 08:47:09,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 82 states and 111 transitions. [2019-11-25 08:47:09,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2019-11-25 08:47:09,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2019-11-25 08:47:09,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 111 transitions. [2019-11-25 08:47:09,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:47:09,462 INFO L688 BuchiCegarLoop]: Abstraction has 82 states and 111 transitions. [2019-11-25 08:47:09,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 111 transitions. [2019-11-25 08:47:09,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-11-25 08:47:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-25 08:47:09,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 111 transitions. [2019-11-25 08:47:09,468 INFO L711 BuchiCegarLoop]: Abstraction has 82 states and 111 transitions. [2019-11-25 08:47:09,468 INFO L591 BuchiCegarLoop]: Abstraction has 82 states and 111 transitions. [2019-11-25 08:47:09,468 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:47:09,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 111 transitions. [2019-11-25 08:47:09,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2019-11-25 08:47:09,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:09,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:09,471 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:09,471 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:09,471 INFO L794 eck$LassoCheckResult]: Stem: 444#ULTIMATE.startENTRY ~r1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~mode1~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~mode2~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~mode3~0 := 0;~nomsg~0 := -1;~p1~0 := 0;~send1~0 := 0;~p2~0 := 0;~send2~0 := 0;~p3~0 := 0;~send3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 417#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~ret16, main_#t~ret17, main_#t~post18, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet3;havoc main_#t~nondet3;~id1~0 := main_#t~nondet4;havoc main_#t~nondet4;~st1~0 := main_#t~nondet5;havoc main_#t~nondet5;~send1~0 := main_#t~nondet6;havoc main_#t~nondet6;~mode1~0 := main_#t~nondet7;havoc main_#t~nondet7;~id2~0 := main_#t~nondet8;havoc main_#t~nondet8;~st2~0 := main_#t~nondet9;havoc main_#t~nondet9;~send2~0 := main_#t~nondet10;havoc main_#t~nondet10;~mode2~0 := main_#t~nondet11;havoc main_#t~nondet11;~id3~0 := main_#t~nondet12;havoc main_#t~nondet12;~st3~0 := main_#t~nondet13;havoc main_#t~nondet13;~send3~0 := main_#t~nondet14;havoc main_#t~nondet14;~mode3~0 := main_#t~nondet15;havoc main_#t~nondet15;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 400#L175 assume 0 == ~r1~0; 401#L176 assume ~id1~0 >= 0; 428#L177 assume 0 == ~st1~0; 451#L178 assume ~send1~0 == ~id1~0; 411#L179 assume 0 == ~mode1~0 % 256; 412#L180 assume ~id2~0 >= 0; 440#L181 assume 0 == ~st2~0; 420#L182 assume ~send2~0 == ~id2~0; 421#L183 assume 0 == ~mode2~0 % 256; 448#L184 assume ~id3~0 >= 0; 456#L185 assume 0 == ~st3~0; 404#L186 assume ~send3~0 == ~id3~0; 405#L187 assume 0 == ~mode3~0 % 256; 431#L188 assume ~id1~0 != ~id2~0; 452#L189 assume ~id1~0 != ~id3~0; 413#L190 assume ~id2~0 != ~id3~0;init_~tmp~0 := 1; 414#L175-1 init_#res := init_~tmp~0; 425#L240 main_#t~ret16 := init_#res;main_~i2~0 := main_#t~ret16;havoc main_#t~ret16;assume 0 != main_~i2~0;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0 := 0; 457#L300-2 [2019-11-25 08:47:09,472 INFO L796 eck$LassoCheckResult]: Loop: 457#L300-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite0, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 477#L99 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 434#L103 assume !(node1_~m1~0 != ~nomsg~0); 432#L103-1 ~mode1~0 := 0; 433#L99-2 havoc node2_#t~ite1, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 474#L125 assume !(0 != ~mode2~0 % 256); 470#L138 assume ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0;node2_#t~ite1 := ~send2~0; 469#L138-2 ~p2_new~0 := (if node2_#t~ite1 % 256 <= 127 then node2_#t~ite1 % 256 else node2_#t~ite1 % 256 - 256);havoc node2_#t~ite1;~mode2~0 := 1; 467#L125-2 havoc node3_#t~ite2, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 446#L150 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 426#L153 assume !(node3_~m3~0 != ~nomsg~0); 410#L153-1 ~mode3~0 := 0; 415#L150-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 416#L248 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 424#L249 assume !(~r1~0 >= 3); 407#L252 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 408#L253 assume ~r1~0 < 3;check_~tmp~1 := 1; 481#L248-1 check_#res := check_~tmp~1; 480#L268 main_#t~ret17 := check_#res;main_~c1~0 := main_#t~ret17;havoc main_#t~ret17;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 479#L324 assume !(0 == assert_~arg % 256); 478#L319 main_#t~post18 := main_~i2~0;main_~i2~0 := 1 + main_#t~post18;havoc main_#t~post18; 457#L300-2 [2019-11-25 08:47:09,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:09,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1664101251, now seen corresponding path program 3 times [2019-11-25 08:47:09,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:09,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560687363] [2019-11-25 08:47:09,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:09,533 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:09,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:09,534 INFO L82 PathProgramCache]: Analyzing trace with hash -535400680, now seen corresponding path program 1 times [2019-11-25 08:47:09,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:09,534 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091415998] [2019-11-25 08:47:09,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:09,578 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:09,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:09,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1845919716, now seen corresponding path program 1 times [2019-11-25 08:47:09,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:09,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751698351] [2019-11-25 08:47:09,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:09,638 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751698351] [2019-11-25 08:47:09,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:09,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:47:09,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587369154] [2019-11-25 08:47:09,957 WARN L192 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 103 [2019-11-25 08:47:11,113 WARN L192 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2019-11-25 08:47:11,127 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:11,128 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:11,128 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:11,128 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:11,128 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:47:11,128 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:11,128 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:11,129 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:11,129 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.3.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2019-11-25 08:47:11,129 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:11,130 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:11,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:11,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,367 WARN L192 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-11-25 08:47:12,480 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:12,481 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:47:12,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:47:12,498 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:47:12,521 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:47:12,521 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:12,634 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:47:12,637 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:47:12,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:47:12,637 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:47:12,638 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:47:12,638 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:47:12,638 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:12,638 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:47:12,638 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:47:12,638 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr.3.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2019-11-25 08:47:12,638 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:47:12,638 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:47:12,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:12,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:47:13,835 WARN L192 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-11-25 08:47:13,943 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:47:13,948 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:13,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:47:13,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:47:13,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:47:13,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:47:13,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:47:13,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:47:13,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:47:13,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:47:13,965 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:47:13,981 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:47:13,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:47:13,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:47:13,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:47:13,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:47:13,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:47:13,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:47:13,985 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:13,989 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:14,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:47:14,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:47:14,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:47:14,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:47:14,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:47:14,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:47:14,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:47:14,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:47:14,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:47:14,013 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:47:14,013 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f404794b-1df0-4e25-b073-ed7a06f2cca6/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:47:14,025 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:47:14,025 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:47:14,025 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:47:14,026 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:47:14,030 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:47:14,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:14,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:47:14,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:14,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:47:14,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:47:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:14,142 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:47:14,145 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 111 transitions. cyclomatic complexity: 30 Second operand 3 states. [2019-11-25 08:47:14,231 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 111 transitions. cyclomatic complexity: 30. Second operand 3 states. Result 143 states and 202 transitions. Complement of second has 4 states. [2019-11-25 08:47:14,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:47:14,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:47:14,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2019-11-25 08:47:14,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 20 letters. Loop has 21 letters. [2019-11-25 08:47:14,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:14,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 41 letters. Loop has 21 letters. [2019-11-25 08:47:14,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:14,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 20 letters. Loop has 42 letters. [2019-11-25 08:47:14,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:47:14,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 143 states and 202 transitions. [2019-11-25 08:47:14,240 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:47:14,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 143 states to 0 states and 0 transitions. [2019-11-25 08:47:14,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:47:14,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:47:14,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:47:14,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:47:14,241 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:14,241 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:14,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:14,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:47:14,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:14,242 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2019-11-25 08:47:14,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:14,242 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-25 08:47:14,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:47:14,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-25 08:47:14,243 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:47:14,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:47:14,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:47:14,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:47:14,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:47:14,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:47:14,243 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:14,243 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:14,243 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:14,244 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-25 08:47:14,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:47:14,244 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:47:14,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:47:14,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:47:14 BoogieIcfgContainer [2019-11-25 08:47:14,250 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:47:14,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:47:14,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:47:14,251 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:47:14,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:08" (3/4) ... [2019-11-25 08:47:14,254 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:47:14,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:47:14,256 INFO L168 Benchmark]: Toolchain (without parser) took 6857.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -138.3 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:14,256 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:14,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:14,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.37 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:14,258 INFO L168 Benchmark]: Boogie Preprocessor took 28.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:14,258 INFO L168 Benchmark]: RCFGBuilder took 471.66 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:14,259 INFO L168 Benchmark]: BuchiAutomizer took 5872.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.1 MB). Peak memory consumption was 53.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:14,259 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:14,262 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 431.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.37 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 471.66 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5872.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.1 MB). Peak memory consumption was 53.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. 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 (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 11 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 5.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 82 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 338 SDtfs, 161 SDslu, 488 SDs, 0 SdLazy, 32 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital474 mio100 ax107 hnf101 lsp16 ukn72 mio100 lsp100 div149 bol100 ite100 ukn100 eq178 hnf72 smp100 dnf670 smp48 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...