./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/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 1eb74577d089f346a0faa51ee035b452800af0a7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 07:00:30,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:00:30,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:00:30,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:00:30,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:00:30,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:00:30,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:00:30,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:00:30,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:00:30,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:00:30,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:00:30,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:00:30,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:00:30,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:00:30,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:00:30,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:00:30,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:00:30,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:00:30,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:00:30,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:00:30,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:00:30,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:00:30,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:00:30,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:00:30,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:00:30,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:00:30,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:00:30,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:00:30,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:00:30,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:00:30,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:00:30,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:00:30,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:00:30,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:00:30,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:00:30,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:00:30,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:00:30,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:00:30,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:00:30,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:00:30,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:00:30,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 07:00:30,078 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:00:30,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:00:30,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:00:30,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:00:30,079 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:00:30,079 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 07:00:30,080 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 07:00:30,080 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 07:00:30,080 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 07:00:30,080 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 07:00:30,080 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 07:00:30,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:00:30,081 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:00:30,081 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 07:00:30,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:00:30,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:00:30,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:00:30,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 07:00:30,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 07:00:30,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 07:00:30,082 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:00:30,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:00:30,083 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 07:00:30,083 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:00:30,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 07:00:30,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:00:30,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:00:30,084 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 07:00:30,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:00:30,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:00:30,085 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 07:00:30,085 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 07:00:30,085 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_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/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 -> 1eb74577d089f346a0faa51ee035b452800af0a7 [2019-11-20 07:00:30,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:00:30,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:00:30,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:00:30,258 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:00:30,263 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:00:30,264 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c [2019-11-20 07:00:30,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/data/2c9048c25/5b515f49f60b421ead6ffdbc1e74a385/FLAG4cbf73836 [2019-11-20 07:00:30,825 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:00:30,827 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.BOUNDED-8.pals.c [2019-11-20 07:00:30,841 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/data/2c9048c25/5b515f49f60b421ead6ffdbc1e74a385/FLAG4cbf73836 [2019-11-20 07:00:31,332 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/data/2c9048c25/5b515f49f60b421ead6ffdbc1e74a385 [2019-11-20 07:00:31,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:00:31,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:00:31,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:00:31,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:00:31,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:00:31,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:00:31" (1/1) ... [2019-11-20 07:00:31,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3440089a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31, skipping insertion in model container [2019-11-20 07:00:31,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:00:31" (1/1) ... [2019-11-20 07:00:31,352 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:00:31,403 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:00:31,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:00:31,739 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:00:31,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:00:31,848 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:00:31,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31 WrapperNode [2019-11-20 07:00:31,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:00:31,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:00:31,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:00:31,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:00:31,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31" (1/1) ... [2019-11-20 07:00:31,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31" (1/1) ... [2019-11-20 07:00:31,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:00:31,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:00:31,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:00:31,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:00:31,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31" (1/1) ... [2019-11-20 07:00:31,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31" (1/1) ... [2019-11-20 07:00:31,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31" (1/1) ... [2019-11-20 07:00:31,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31" (1/1) ... [2019-11-20 07:00:31,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31" (1/1) ... [2019-11-20 07:00:31,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31" (1/1) ... [2019-11-20 07:00:31,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31" (1/1) ... [2019-11-20 07:00:32,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:00:32,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:00:32,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:00:32,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:00:32,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/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 [2019-11-20 07:00:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:00:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:00:33,307 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:00:33,308 INFO L285 CfgBuilder]: Removed 19 assume(true) statements. [2019-11-20 07:00:33,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:00:33 BoogieIcfgContainer [2019-11-20 07:00:33,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:00:33,310 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 07:00:33,310 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 07:00:33,313 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 07:00:33,313 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 07:00:33,313 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:00:31" (1/3) ... [2019-11-20 07:00:33,314 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79c51560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:00:33, skipping insertion in model container [2019-11-20 07:00:33,314 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 07:00:33,318 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:31" (2/3) ... [2019-11-20 07:00:33,319 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79c51560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:00:33, skipping insertion in model container [2019-11-20 07:00:33,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 07:00:33,319 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:00:33" (3/3) ... [2019-11-20 07:00:33,320 INFO L371 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.BOUNDED-8.pals.c [2019-11-20 07:00:33,359 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 07:00:33,359 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 07:00:33,359 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 07:00:33,359 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:00:33,359 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:00:33,360 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 07:00:33,360 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:00:33,360 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 07:00:33,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 301 states. [2019-11-20 07:00:33,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 107 [2019-11-20 07:00:33,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:00:33,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:00:33,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:33,437 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, 1] [2019-11-20 07:00:33,437 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 07:00:33,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 301 states. [2019-11-20 07:00:33,451 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 107 [2019-11-20 07:00:33,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:00:33,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:00:33,455 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:33,456 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, 1] [2019-11-20 07:00:33,463 INFO L794 eck$LassoCheckResult]: Stem: 108#ULTIMATE.startENTRYtrue ~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 10#L-1true havoc main_#res;havoc main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~ret52, main_#t~ret53, main_#t~post54, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet12;havoc main_#t~nondet12;~ep13~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep14~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep24~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep31~0 := main_#t~nondet18;havoc main_#t~nondet18;~ep32~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep34~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep41~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep42~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep43~0 := main_#t~nondet23;havoc main_#t~nondet23;~id1~0 := main_#t~nondet24;havoc main_#t~nondet24;~r1~0 := main_#t~nondet25;havoc main_#t~nondet25;~st1~0 := main_#t~nondet26;havoc main_#t~nondet26;~nl1~0 := main_#t~nondet27;havoc main_#t~nondet27;~m1~0 := main_#t~nondet28;havoc main_#t~nondet28;~max1~0 := main_#t~nondet29;havoc main_#t~nondet29;~mode1~0 := main_#t~nondet30;havoc main_#t~nondet30;~id2~0 := main_#t~nondet31;havoc main_#t~nondet31;~r2~0 := main_#t~nondet32;havoc main_#t~nondet32;~st2~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl2~0 := main_#t~nondet34;havoc main_#t~nondet34;~m2~0 := main_#t~nondet35;havoc main_#t~nondet35;~max2~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode2~0 := main_#t~nondet37;havoc main_#t~nondet37;~id3~0 := main_#t~nondet38;havoc main_#t~nondet38;~r3~0 := main_#t~nondet39;havoc main_#t~nondet39;~st3~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl3~0 := main_#t~nondet41;havoc main_#t~nondet41;~m3~0 := main_#t~nondet42;havoc main_#t~nondet42;~max3~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode3~0 := main_#t~nondet44;havoc main_#t~nondet44;~id4~0 := main_#t~nondet45;havoc main_#t~nondet45;~r4~0 := main_#t~nondet46;havoc main_#t~nondet46;~st4~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl4~0 := main_#t~nondet48;havoc main_#t~nondet48;~m4~0 := main_#t~nondet49;havoc main_#t~nondet49;~max4~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode4~0 := main_#t~nondet51;havoc main_#t~nondet51;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 177#L436true assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 199#L447true init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 83#L457true assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 81#L468true init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 139#L478true assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 137#L489true init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 47#L499true assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 45#L510true init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 254#L520true assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 252#L531true init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 164#L541true assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 163#L552true init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 224#L562true assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 223#L573true init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 128#L583true assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 127#L594true init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 33#L604true assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 32#L615true init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 237#L625true assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 235#L636true init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 299#L646true assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 297#L657true init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 207#L667true assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 206#L678true init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 113#L688true assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 112#L699true init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 17#L709true assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 16#L720true init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 73#L730true assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 71#L741true init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 279#L751true assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 278#L762true init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 170#L772true assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 190#L783true init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 77#L793true assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 76#L804true init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 133#L814true assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 131#L825true init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 38#L835true assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 36#L846true init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 243#L856true assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 242#L867true init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 156#L877true assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 155#L888true init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 215#L898true assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 214#L909true init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 121#L919true assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 120#L930true init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 25#L940true assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 28#L940-1true init_#res := init_~tmp___23~0; 266#L1109true main_#t~ret52 := init_#res;main_~i2~0 := main_#t~ret52;havoc main_#t~ret52;assume 0 != main_~i2~0;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0 := 0; 298#L1246-2true [2019-11-20 07:00:33,464 INFO L796 eck$LassoCheckResult]: Loop: 298#L1246-2true assume !!(main_~i2~0 < 8);havoc node1_#t~ite0, node1_#t~ite1, node1_#t~ite2; 272#L151true assume !(0 != ~mode1~0 % 256); 182#L183true assume !(~r1~0 < 2); 179#L183-1true ~mode1~0 := 1; 269#L151-2true havoc node2_#t~ite3, node2_#t~ite4, node2_#t~ite5; 91#L204true assume !(0 != ~mode2~0 % 256); 147#L236true assume !(~r2~0 < 3); 142#L236-1true ~mode2~0 := 1; 84#L204-2true havoc node3_#t~ite6, node3_#t~ite7, node3_#t~ite8; 50#L257true assume !(0 != ~mode3~0 % 256); 256#L289true assume !(~r3~0 < 3); 253#L289-1true ~mode3~0 := 1; 44#L257-2true havoc node4_#t~ite9, node4_#t~ite10, node4_#t~ite11; 159#L310true assume !(0 != ~mode4~0 % 256); 217#L342true assume !(~r4~0 < 3); 218#L342-1true ~mode4~0 := 1; 292#L310-2true ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 126#L1117true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 130#L1117-1true check_#res := check_~tmp~1; 296#L1169true main_#t~ret53 := check_#res;main_~c1~0 := main_#t~ret53;havoc main_#t~ret53;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 202#L1289true assume !(0 == assert_~arg % 256); 172#L1284true main_#t~post54 := main_~i2~0;main_~i2~0 := 1 + main_#t~post54;havoc main_#t~post54; 298#L1246-2true [2019-11-20 07:00:33,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:33,470 INFO L82 PathProgramCache]: Analyzing trace with hash 15531844, now seen corresponding path program 1 times [2019-11-20 07:00:33,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:00:33,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750419256] [2019-11-20 07:00:33,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:00:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:33,842 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750419256] [2019-11-20 07:00:33,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:00:33,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 07:00:33,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521022825] [2019-11-20 07:00:33,848 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 07:00:33,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:33,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1969179729, now seen corresponding path program 1 times [2019-11-20 07:00:33,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:00:33,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090747392] [2019-11-20 07:00:33,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:00:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:33,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:33,971 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090747392] [2019-11-20 07:00:33,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:00:33,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 07:00:33,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393122264] [2019-11-20 07:00:33,974 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 07:00:33,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:00:33,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:00:33,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:00:33,993 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 5 states. [2019-11-20 07:00:34,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:00:34,135 INFO L93 Difference]: Finished difference Result 305 states and 543 transitions. [2019-11-20 07:00:34,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:00:34,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 305 states and 543 transitions. [2019-11-20 07:00:34,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2019-11-20 07:00:34,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 305 states to 296 states and 526 transitions. [2019-11-20 07:00:34,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 296 [2019-11-20 07:00:34,166 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 296 [2019-11-20 07:00:34,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 296 states and 526 transitions. [2019-11-20 07:00:34,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:00:34,174 INFO L688 BuchiCegarLoop]: Abstraction has 296 states and 526 transitions. [2019-11-20 07:00:34,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states and 526 transitions. [2019-11-20 07:00:34,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2019-11-20 07:00:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2019-11-20 07:00:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 526 transitions. [2019-11-20 07:00:34,228 INFO L711 BuchiCegarLoop]: Abstraction has 296 states and 526 transitions. [2019-11-20 07:00:34,228 INFO L591 BuchiCegarLoop]: Abstraction has 296 states and 526 transitions. [2019-11-20 07:00:34,228 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 07:00:34,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 296 states and 526 transitions. [2019-11-20 07:00:34,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2019-11-20 07:00:34,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:00:34,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:00:34,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:34,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:34,236 INFO L794 eck$LassoCheckResult]: Stem: 824#ULTIMATE.startENTRY ~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 639#L-1 havoc main_#res;havoc main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~ret52, main_#t~ret53, main_#t~post54, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet12;havoc main_#t~nondet12;~ep13~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep14~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep24~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep31~0 := main_#t~nondet18;havoc main_#t~nondet18;~ep32~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep34~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep41~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep42~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep43~0 := main_#t~nondet23;havoc main_#t~nondet23;~id1~0 := main_#t~nondet24;havoc main_#t~nondet24;~r1~0 := main_#t~nondet25;havoc main_#t~nondet25;~st1~0 := main_#t~nondet26;havoc main_#t~nondet26;~nl1~0 := main_#t~nondet27;havoc main_#t~nondet27;~m1~0 := main_#t~nondet28;havoc main_#t~nondet28;~max1~0 := main_#t~nondet29;havoc main_#t~nondet29;~mode1~0 := main_#t~nondet30;havoc main_#t~nondet30;~id2~0 := main_#t~nondet31;havoc main_#t~nondet31;~r2~0 := main_#t~nondet32;havoc main_#t~nondet32;~st2~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl2~0 := main_#t~nondet34;havoc main_#t~nondet34;~m2~0 := main_#t~nondet35;havoc main_#t~nondet35;~max2~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode2~0 := main_#t~nondet37;havoc main_#t~nondet37;~id3~0 := main_#t~nondet38;havoc main_#t~nondet38;~r3~0 := main_#t~nondet39;havoc main_#t~nondet39;~st3~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl3~0 := main_#t~nondet41;havoc main_#t~nondet41;~m3~0 := main_#t~nondet42;havoc main_#t~nondet42;~max3~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode3~0 := main_#t~nondet44;havoc main_#t~nondet44;~id4~0 := main_#t~nondet45;havoc main_#t~nondet45;~r4~0 := main_#t~nondet46;havoc main_#t~nondet46;~st4~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl4~0 := main_#t~nondet48;havoc main_#t~nondet48;~m4~0 := main_#t~nondet49;havoc main_#t~nondet49;~max4~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode4~0 := main_#t~nondet51;havoc main_#t~nondet51;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 640#L436 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 792#L447 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 786#L457 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 667#L468 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 783#L478 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 729#L489 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 725#L499 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 638#L510 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 718#L520 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 716#L531 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 864#L541 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 819#L552 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 863#L562 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 632#L573 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 844#L583 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 695#L594 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 692#L604 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 690#L615 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 691#L625 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 689#L636 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 914#L646 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 779#L657 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 900#L667 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 831#L678 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 828#L688 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 659#L699 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 656#L709 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 654#L720 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 655#L730 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 650#L741 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 766#L751 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 765#L762 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 873#L772 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 777#L783 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 775#L793 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 644#L804 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 772#L814 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 710#L825 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 703#L835 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 701#L846 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 702#L856 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 698#L867 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 857#L877 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 804#L888 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 856#L898 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 838#L909 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 836#L919 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 679#L930 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 676#L940 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 665#L940-1 init_#res := init_~tmp___23~0; 683#L1109 main_#t~ret52 := init_#res;main_~i2~0 := main_#t~ret52;havoc main_#t~ret52;assume 0 != main_~i2~0;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0 := 0; 875#L1246-2 [2019-11-20 07:00:34,236 INFO L796 eck$LassoCheckResult]: Loop: 875#L1246-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite0, node1_#t~ite1, node1_#t~ite2; 917#L151 assume !(0 != ~mode1~0 % 256); 886#L183 assume !(~r1~0 < 2); 682#L183-1 ~mode1~0 := 1; 767#L151-2 havoc node2_#t~ite3, node2_#t~ite4, node2_#t~ite5; 798#L204 assume !(0 != ~mode2~0 % 256); 800#L236 assume !(~r2~0 < 3); 747#L236-1 ~mode2~0 := 1; 788#L204-2 havoc node3_#t~ite6, node3_#t~ite7, node3_#t~ite8; 730#L257 assume !(0 != ~mode3~0 % 256); 732#L289 assume !(~r3~0 < 3); 818#L289-1 ~mode3~0 := 1; 713#L257-2 havoc node4_#t~ite9, node4_#t~ite10, node4_#t~ite11; 714#L310 assume !(0 != ~mode4~0 % 256); 861#L342 assume !(~r4~0 < 3); 760#L342-1 ~mode4~0 := 1; 905#L310-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 841#L1117 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 842#L1118 assume ~st1~0 + ~nl1~0 <= 1; 878#L1119 assume ~st2~0 + ~nl2~0 <= 1; 879#L1120 assume ~st3~0 + ~nl3~0 <= 1; 754#L1121 assume ~st4~0 + ~nl4~0 <= 1; 628#L1122 assume ~r1~0 >= 3; 629#L1126 assume ~r1~0 < 3; 881#L1131 assume ~r1~0 >= 3; 903#L1136 assume ~r1~0 < 3;check_~tmp~1 := 1; 847#L1117-1 check_#res := check_~tmp~1; 848#L1169 main_#t~ret53 := check_#res;main_~c1~0 := main_#t~ret53;havoc main_#t~ret53;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 897#L1289 assume !(0 == assert_~arg % 256); 874#L1284 main_#t~post54 := main_~i2~0;main_~i2~0 := 1 + main_#t~post54;havoc main_#t~post54; 875#L1246-2 [2019-11-20 07:00:34,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:34,237 INFO L82 PathProgramCache]: Analyzing trace with hash 15531844, now seen corresponding path program 2 times [2019-11-20 07:00:34,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:00:34,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94711838] [2019-11-20 07:00:34,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:00:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:34,391 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94711838] [2019-11-20 07:00:34,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:00:34,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 07:00:34,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753850230] [2019-11-20 07:00:34,393 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 07:00:34,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:34,393 INFO L82 PathProgramCache]: Analyzing trace with hash -416905568, now seen corresponding path program 1 times [2019-11-20 07:00:34,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:00:34,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71299721] [2019-11-20 07:00:34,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:00:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:34,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:34,439 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71299721] [2019-11-20 07:00:34,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:00:34,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 07:00:34,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210563104] [2019-11-20 07:00:34,440 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 07:00:34,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:00:34,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:00:34,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:00:34,441 INFO L87 Difference]: Start difference. First operand 296 states and 526 transitions. cyclomatic complexity: 231 Second operand 3 states. [2019-11-20 07:00:34,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:00:34,522 INFO L93 Difference]: Finished difference Result 381 states and 660 transitions. [2019-11-20 07:00:34,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:00:34,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 381 states and 660 transitions. [2019-11-20 07:00:34,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2019-11-20 07:00:34,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 381 states to 381 states and 660 transitions. [2019-11-20 07:00:34,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 381 [2019-11-20 07:00:34,533 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 381 [2019-11-20 07:00:34,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 381 states and 660 transitions. [2019-11-20 07:00:34,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:00:34,539 INFO L688 BuchiCegarLoop]: Abstraction has 381 states and 660 transitions. [2019-11-20 07:00:34,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states and 660 transitions. [2019-11-20 07:00:34,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2019-11-20 07:00:34,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-11-20 07:00:34,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 660 transitions. [2019-11-20 07:00:34,572 INFO L711 BuchiCegarLoop]: Abstraction has 381 states and 660 transitions. [2019-11-20 07:00:34,573 INFO L591 BuchiCegarLoop]: Abstraction has 381 states and 660 transitions. [2019-11-20 07:00:34,573 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 07:00:34,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 381 states and 660 transitions. [2019-11-20 07:00:34,576 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 191 [2019-11-20 07:00:34,576 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 07:00:34,576 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 07:00:34,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:34,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:00:34,579 INFO L794 eck$LassoCheckResult]: Stem: 1508#ULTIMATE.startENTRY ~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 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];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 1323#L-1 havoc main_#res;havoc main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_#t~nondet47, main_#t~nondet48, main_#t~nondet49, main_#t~nondet50, main_#t~nondet51, main_#t~ret52, main_#t~ret53, main_#t~post54, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~ep12~0 := main_#t~nondet12;havoc main_#t~nondet12;~ep13~0 := main_#t~nondet13;havoc main_#t~nondet13;~ep14~0 := main_#t~nondet14;havoc main_#t~nondet14;~ep21~0 := main_#t~nondet15;havoc main_#t~nondet15;~ep23~0 := main_#t~nondet16;havoc main_#t~nondet16;~ep24~0 := main_#t~nondet17;havoc main_#t~nondet17;~ep31~0 := main_#t~nondet18;havoc main_#t~nondet18;~ep32~0 := main_#t~nondet19;havoc main_#t~nondet19;~ep34~0 := main_#t~nondet20;havoc main_#t~nondet20;~ep41~0 := main_#t~nondet21;havoc main_#t~nondet21;~ep42~0 := main_#t~nondet22;havoc main_#t~nondet22;~ep43~0 := main_#t~nondet23;havoc main_#t~nondet23;~id1~0 := main_#t~nondet24;havoc main_#t~nondet24;~r1~0 := main_#t~nondet25;havoc main_#t~nondet25;~st1~0 := main_#t~nondet26;havoc main_#t~nondet26;~nl1~0 := main_#t~nondet27;havoc main_#t~nondet27;~m1~0 := main_#t~nondet28;havoc main_#t~nondet28;~max1~0 := main_#t~nondet29;havoc main_#t~nondet29;~mode1~0 := main_#t~nondet30;havoc main_#t~nondet30;~id2~0 := main_#t~nondet31;havoc main_#t~nondet31;~r2~0 := main_#t~nondet32;havoc main_#t~nondet32;~st2~0 := main_#t~nondet33;havoc main_#t~nondet33;~nl2~0 := main_#t~nondet34;havoc main_#t~nondet34;~m2~0 := main_#t~nondet35;havoc main_#t~nondet35;~max2~0 := main_#t~nondet36;havoc main_#t~nondet36;~mode2~0 := main_#t~nondet37;havoc main_#t~nondet37;~id3~0 := main_#t~nondet38;havoc main_#t~nondet38;~r3~0 := main_#t~nondet39;havoc main_#t~nondet39;~st3~0 := main_#t~nondet40;havoc main_#t~nondet40;~nl3~0 := main_#t~nondet41;havoc main_#t~nondet41;~m3~0 := main_#t~nondet42;havoc main_#t~nondet42;~max3~0 := main_#t~nondet43;havoc main_#t~nondet43;~mode3~0 := main_#t~nondet44;havoc main_#t~nondet44;~id4~0 := main_#t~nondet45;havoc main_#t~nondet45;~r4~0 := main_#t~nondet46;havoc main_#t~nondet46;~st4~0 := main_#t~nondet47;havoc main_#t~nondet47;~nl4~0 := main_#t~nondet48;havoc main_#t~nondet48;~m4~0 := main_#t~nondet49;havoc main_#t~nondet49;~max4~0 := main_#t~nondet50;havoc main_#t~nondet50;~mode4~0 := main_#t~nondet51;havoc main_#t~nondet51;havoc init_#res;havoc init_~r121~0, init_~r131~0, init_~r141~0, init_~r211~0, init_~r231~0, init_~r241~0, init_~r311~0, init_~r321~0, init_~r341~0, init_~r411~0, init_~r421~0, init_~r431~0, init_~r122~0, init_~tmp~0, init_~r132~0, init_~tmp___0~0, init_~r142~0, init_~tmp___1~0, init_~r212~0, init_~tmp___2~0, init_~r232~0, init_~tmp___3~0, init_~r242~0, init_~tmp___4~0, init_~r312~0, init_~tmp___5~0, init_~r322~0, init_~tmp___6~0, init_~r342~0, init_~tmp___7~0, init_~r412~0, init_~tmp___8~0, init_~r422~0, init_~tmp___9~0, init_~r432~0, init_~tmp___10~0, init_~r123~0, init_~tmp___11~0, init_~r133~0, init_~tmp___12~0, init_~r143~0, init_~tmp___13~0, init_~r213~0, init_~tmp___14~0, init_~r233~0, init_~tmp___15~0, init_~r243~0, init_~tmp___16~0, init_~r313~0, init_~tmp___17~0, init_~r323~0, init_~tmp___18~0, init_~r343~0, init_~tmp___19~0, init_~r413~0, init_~tmp___20~0, init_~r423~0, init_~tmp___21~0, init_~r433~0, init_~tmp___22~0, init_~tmp___23~0;havoc init_~r121~0;havoc init_~r131~0;havoc init_~r141~0;havoc init_~r211~0;havoc init_~r231~0;havoc init_~r241~0;havoc init_~r311~0;havoc init_~r321~0;havoc init_~r341~0;havoc init_~r411~0;havoc init_~r421~0;havoc init_~r431~0;havoc init_~r122~0;havoc init_~tmp~0;havoc init_~r132~0;havoc init_~tmp___0~0;havoc init_~r142~0;havoc init_~tmp___1~0;havoc init_~r212~0;havoc init_~tmp___2~0;havoc init_~r232~0;havoc init_~tmp___3~0;havoc init_~r242~0;havoc init_~tmp___4~0;havoc init_~r312~0;havoc init_~tmp___5~0;havoc init_~r322~0;havoc init_~tmp___6~0;havoc init_~r342~0;havoc init_~tmp___7~0;havoc init_~r412~0;havoc init_~tmp___8~0;havoc init_~r422~0;havoc init_~tmp___9~0;havoc init_~r432~0;havoc init_~tmp___10~0;havoc init_~r123~0;havoc init_~tmp___11~0;havoc init_~r133~0;havoc init_~tmp___12~0;havoc init_~r143~0;havoc init_~tmp___13~0;havoc init_~r213~0;havoc init_~tmp___14~0;havoc init_~r233~0;havoc init_~tmp___15~0;havoc init_~r243~0;havoc init_~tmp___16~0;havoc init_~r313~0;havoc init_~tmp___17~0;havoc init_~r323~0;havoc init_~tmp___18~0;havoc init_~r343~0;havoc init_~tmp___19~0;havoc init_~r413~0;havoc init_~tmp___20~0;havoc init_~r423~0;havoc init_~tmp___21~0;havoc init_~r433~0;havoc init_~tmp___22~0;havoc init_~tmp___23~0;init_~r121~0 := ~ep12~0;init_~r131~0 := ~ep13~0;init_~r141~0 := ~ep14~0;init_~r211~0 := ~ep21~0;init_~r231~0 := ~ep23~0;init_~r241~0 := ~ep24~0;init_~r311~0 := ~ep31~0;init_~r321~0 := ~ep32~0;init_~r341~0 := ~ep34~0;init_~r411~0 := ~ep41~0;init_~r421~0 := ~ep42~0;init_~r431~0 := ~ep43~0; 1324#L436 assume 0 != init_~r121~0 % 256;init_~tmp~0 := 1; 1476#L447 init_~r122~0 := (if 0 == init_~tmp~0 then 0 else 1); 1471#L457 assume 0 != init_~r131~0 % 256;init_~tmp___0~0 := 1; 1351#L468 init_~r132~0 := (if 0 == init_~tmp___0~0 then 0 else 1); 1467#L478 assume 0 != init_~r141~0 % 256;init_~tmp___1~0 := 1; 1413#L489 init_~r142~0 := (if 0 == init_~tmp___1~0 then 0 else 1); 1409#L499 assume 0 != init_~r211~0 % 256;init_~tmp___2~0 := 1; 1322#L510 init_~r212~0 := (if 0 == init_~tmp___2~0 then 0 else 1); 1405#L520 assume 0 != init_~r231~0 % 256;init_~tmp___3~0 := 1; 1401#L531 init_~r232~0 := (if 0 == init_~tmp___3~0 then 0 else 1); 1548#L541 assume 0 != init_~r241~0 % 256;init_~tmp___4~0 := 1; 1503#L552 init_~r242~0 := (if 0 == init_~tmp___4~0 then 0 else 1); 1547#L562 assume 0 != init_~r311~0 % 256;init_~tmp___5~0 := 1; 1316#L573 init_~r312~0 := (if 0 == init_~tmp___5~0 then 0 else 1); 1528#L583 assume 0 != init_~r321~0 % 256;init_~tmp___6~0 := 1; 1379#L594 init_~r322~0 := (if 0 == init_~tmp___6~0 then 0 else 1); 1376#L604 assume 0 != init_~r341~0 % 256;init_~tmp___7~0 := 1; 1374#L615 init_~r342~0 := (if 0 == init_~tmp___7~0 then 0 else 1); 1375#L625 assume 0 != init_~r411~0 % 256;init_~tmp___8~0 := 1; 1373#L636 init_~r412~0 := (if 0 == init_~tmp___8~0 then 0 else 1); 1598#L646 assume 0 != init_~r421~0 % 256;init_~tmp___9~0 := 1; 1463#L657 init_~r422~0 := (if 0 == init_~tmp___9~0 then 0 else 1); 1584#L667 assume 0 != init_~r431~0 % 256;init_~tmp___10~0 := 1; 1515#L678 init_~r432~0 := (if 0 == init_~tmp___10~0 then 0 else 1); 1512#L688 assume 0 != init_~r122~0 % 256;init_~tmp___11~0 := 1; 1345#L699 init_~r123~0 := (if 0 == init_~tmp___11~0 then 0 else 1); 1340#L709 assume 0 != init_~r132~0 % 256;init_~tmp___12~0 := 1; 1338#L720 init_~r133~0 := (if 0 == init_~tmp___12~0 then 0 else 1); 1339#L730 assume 0 != init_~r142~0 % 256;init_~tmp___13~0 := 1; 1334#L741 init_~r143~0 := (if 0 == init_~tmp___13~0 then 0 else 1); 1451#L751 assume 0 != init_~r212~0 % 256;init_~tmp___14~0 := 1; 1449#L762 init_~r213~0 := (if 0 == init_~tmp___14~0 then 0 else 1); 1557#L772 assume 0 != init_~r232~0 % 256;init_~tmp___15~0 := 1; 1461#L783 init_~r233~0 := (if 0 == init_~tmp___15~0 then 0 else 1); 1457#L793 assume 0 != init_~r242~0 % 256;init_~tmp___16~0 := 1; 1328#L804 init_~r243~0 := (if 0 == init_~tmp___16~0 then 0 else 1); 1456#L814 assume 0 != init_~r312~0 % 256;init_~tmp___17~0 := 1; 1391#L825 init_~r313~0 := (if 0 == init_~tmp___17~0 then 0 else 1); 1387#L835 assume 0 != init_~r322~0 % 256;init_~tmp___18~0 := 1; 1383#L846 init_~r323~0 := (if 0 == init_~tmp___18~0 then 0 else 1); 1384#L856 assume 0 != init_~r342~0 % 256;init_~tmp___19~0 := 1; 1382#L867 init_~r343~0 := (if 0 == init_~tmp___19~0 then 0 else 1); 1541#L877 assume 0 != init_~r412~0 % 256;init_~tmp___20~0 := 1; 1486#L888 init_~r413~0 := (if 0 == init_~tmp___20~0 then 0 else 1); 1540#L898 assume 0 != init_~r422~0 % 256;init_~tmp___21~0 := 1; 1522#L909 init_~r423~0 := (if 0 == init_~tmp___21~0 then 0 else 1); 1520#L919 assume 0 != init_~r432~0 % 256;init_~tmp___22~0 := 1; 1363#L930 init_~r433~0 := (if 0 == init_~tmp___22~0 then 0 else 1); 1360#L940 assume !(~id1~0 != ~id2~0);init_~tmp___23~0 := 0; 1349#L940-1 init_#res := init_~tmp___23~0; 1367#L1109 main_#t~ret52 := init_#res;main_~i2~0 := main_#t~ret52;havoc main_#t~ret52;assume 0 != main_~i2~0;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0 := 0; 1602#L1246-2 [2019-11-20 07:00:34,579 INFO L796 eck$LassoCheckResult]: Loop: 1602#L1246-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite0, node1_#t~ite1, node1_#t~ite2; 1614#L151 assume !(0 != ~mode1~0 % 256); 1613#L183 assume !(~r1~0 < 2); 1366#L183-1 ~mode1~0 := 1; 1668#L151-2 havoc node2_#t~ite3, node2_#t~ite4, node2_#t~ite5; 1666#L204 assume !(0 != ~mode2~0 % 256); 1667#L236 assume !(~r2~0 < 3); 1655#L236-1 ~mode2~0 := 1; 1654#L204-2 havoc node3_#t~ite6, node3_#t~ite7, node3_#t~ite8; 1650#L257 assume !(0 != ~mode3~0 % 256); 1646#L289 assume !(~r3~0 < 3); 1639#L289-1 ~mode3~0 := 1; 1638#L257-2 havoc node4_#t~ite9, node4_#t~ite10, node4_#t~ite11; 1636#L310 assume !(0 != ~mode4~0 % 256); 1626#L342 assume !(~r4~0 < 3); 1622#L342-1 ~mode4~0 := 1; 1621#L310-2 ~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 1620#L1117 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1619#L1118 assume ~st1~0 + ~nl1~0 <= 1; 1612#L1119 assume ~st2~0 + ~nl2~0 <= 1; 1611#L1120 assume ~st3~0 + ~nl3~0 <= 1; 1610#L1121 assume ~st4~0 + ~nl4~0 <= 1; 1609#L1122 assume !(~r1~0 >= 3); 1607#L1125 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1608#L1126 assume ~r1~0 < 3; 1688#L1131 assume !(~r1~0 >= 3); 1586#L1135 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1587#L1136 assume ~r1~0 < 3;check_~tmp~1 := 1; 1618#L1117-1 check_#res := check_~tmp~1; 1617#L1169 main_#t~ret53 := check_#res;main_~c1~0 := main_#t~ret53;havoc main_#t~ret53;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 1616#L1289 assume !(0 == assert_~arg % 256); 1615#L1284 main_#t~post54 := main_~i2~0;main_~i2~0 := 1 + main_#t~post54;havoc main_#t~post54; 1602#L1246-2 [2019-11-20 07:00:34,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:34,580 INFO L82 PathProgramCache]: Analyzing trace with hash 15531844, now seen corresponding path program 3 times [2019-11-20 07:00:34,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:00:34,581 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266331001] [2019-11-20 07:00:34,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:00:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:34,726 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266331001] [2019-11-20 07:00:34,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:00:34,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 07:00:34,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715431596] [2019-11-20 07:00:34,728 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 07:00:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:34,728 INFO L82 PathProgramCache]: Analyzing trace with hash -187282144, now seen corresponding path program 1 times [2019-11-20 07:00:34,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:00:34,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847210716] [2019-11-20 07:00:34,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:00:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:00:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:00:34,808 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 07:00:35,406 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 138 [2019-11-20 07:00:35,633 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-11-20 07:00:35,643 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:00:35,644 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:00:35,644 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:00:35,644 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:00:35,644 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 07:00:35,644 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:35,645 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:00:35,645 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:00:35,645 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.4.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2019-11-20 07:00:35,645 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:00:35,645 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:00:35,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:35,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,352 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-11-20 07:00:36,688 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-11-20 07:00:36,729 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:00:36,729 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/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) [2019-11-20 07:00:36,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 07:00:36,743 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_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:36,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 07:00:36,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 07:00:36,891 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 07:00:36,902 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 07:00:36,902 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 07:00:36,902 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 07:00:36,903 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 07:00:36,903 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 07:00:36,903 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:36,903 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 07:00:36,903 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 07:00:36,903 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.4.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2019-11-20 07:00:36,903 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 07:00:36,903 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 07:00:36,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:36,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 07:00:37,351 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-11-20 07:00:37,724 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-11-20 07:00:37,808 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 07:00:37,813 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/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 [2019-11-20 07:00:37,825 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 [2019-11-20 07:00:37,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:37,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:37,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:37,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:00:37,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:37,837 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 [2019-11-20 07:00:37,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:37,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:00:37,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:00:37,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/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 [2019-11-20 07:00:37,853 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 [2019-11-20 07:00:37,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:37,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:37,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:37,855 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:00:37,858 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:37,865 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 [2019-11-20 07:00:37,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:37,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:37,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:37,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:00:37,869 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:37,873 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 [2019-11-20 07:00:37,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:37,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:37,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:37,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:00:37,877 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:37,884 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 [2019-11-20 07:00:37,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:37,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:37,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:37,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:00:37,888 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:37,892 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 [2019-11-20 07:00:37,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:37,896 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:00:37,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:00:37,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:37,920 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 [2019-11-20 07:00:37,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:37,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:37,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:37,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:00:37,925 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:37,931 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 [2019-11-20 07:00:37,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:37,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:00:37,936 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 07:00:37,940 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:37,954 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 [2019-11-20 07:00:37,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:37,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:37,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:37,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:00:37,962 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:37,978 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 [2019-11-20 07:00:37,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:37,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:37,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:37,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:00:37,983 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:00:37,996 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 [2019-11-20 07:00:37,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:37,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:37,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:37,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:38,000 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:00:38,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:38,004 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:00:38,018 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 [2019-11-20 07:00:38,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:38,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:38,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:38,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:38,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:38,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:38,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:38,024 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:00:38,046 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 [2019-11-20 07:00:38,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:38,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:38,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:38,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:38,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:38,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:38,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:38,074 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:38,091 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 [2019-11-20 07:00:38,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:38,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:38,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:38,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:38,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:38,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:38,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:00:38,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:00:38,110 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 [2019-11-20 07:00:38,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:38,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:38,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:38,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:38,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:38,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:38,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:38,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:00:38,141 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 [2019-11-20 07:00:38,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:38,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:38,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:38,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:38,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:38,144 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:38,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:38,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:00:38,161 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 [2019-11-20 07:00:38,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:38,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:38,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:38,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:38,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:38,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:38,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:38,166 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:00:38,173 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 [2019-11-20 07:00:38,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:38,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:38,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:38,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:38,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 07:00:38,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:38,188 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:00:38,195 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 [2019-11-20 07:00:38,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:38,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:38,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:38,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:38,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:38,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:38,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:00:38,201 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:38,209 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 [2019-11-20 07:00:38,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 07:00:38,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 07:00:38,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 07:00:38,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 07:00:38,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 07:00:38,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 07:00:38,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 07:00:38,214 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 07:00:38,222 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 07:00:38,223 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_56ccfcf3-a2ca-493e-8f0b-c7edb959dca9/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 07:00:38,231 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 07:00:38,231 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 07:00:38,232 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 07:00:38,232 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 15 Supporting invariants [] Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 07:00:38,236 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 07:00:38,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:38,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 07:00:38,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:00:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:38,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 07:00:38,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:00:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:38,480 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 [2019-11-20 07:00:38,481 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 381 states and 660 transitions. cyclomatic complexity: 280 Second operand 3 states. [2019-11-20 07:00:38,585 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 381 states and 660 transitions. cyclomatic complexity: 280. Second operand 3 states. Result 571 states and 968 transitions. Complement of second has 4 states. [2019-11-20 07:00:38,586 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 [2019-11-20 07:00:38,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 07:00:38,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2019-11-20 07:00:38,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 526 transitions. Stem has 53 letters. Loop has 32 letters. [2019-11-20 07:00:38,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:00:38,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 526 transitions. Stem has 85 letters. Loop has 32 letters. [2019-11-20 07:00:38,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:00:38,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 526 transitions. Stem has 53 letters. Loop has 64 letters. [2019-11-20 07:00:38,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 07:00:38,596 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 571 states and 968 transitions. [2019-11-20 07:00:38,601 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 07:00:38,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 571 states to 0 states and 0 transitions. [2019-11-20 07:00:38,601 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 07:00:38,601 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 07:00:38,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 07:00:38,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:00:38,602 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:00:38,602 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:00:38,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:00:38,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 07:00:38,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 07:00:38,603 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2019-11-20 07:00:38,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:00:38,603 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-20 07:00:38,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 07:00:38,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-20 07:00:38,604 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 07:00:38,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 07:00:38,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 07:00:38,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 07:00:38,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 07:00:38,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 07:00:38,605 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:00:38,605 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:00:38,605 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:00:38,605 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 07:00:38,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 07:00:38,606 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 07:00:38,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 07:00:38,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:00:38 BoogieIcfgContainer [2019-11-20 07:00:38,612 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 07:00:38,612 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:00:38,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:00:38,613 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:00:38,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:00:33" (3/4) ... [2019-11-20 07:00:38,617 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 07:00:38,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:00:38,618 INFO L168 Benchmark]: Toolchain (without parser) took 7280.10 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 326.6 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -115.5 MB). Peak memory consumption was 211.1 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:38,619 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-20 07:00:38,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 942.0 MB in the beginning and 1.2 GB in the end (delta: -241.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:38,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:38,622 INFO L168 Benchmark]: Boogie Preprocessor took 83.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:00:38,622 INFO L168 Benchmark]: RCFGBuilder took 1299.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 107.8 MB). Peak memory consumption was 107.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:38,623 INFO L168 Benchmark]: BuchiAutomizer took 5302.18 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 123.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.9 MB). Peak memory consumption was 135.2 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:38,623 INFO L168 Benchmark]: Witness Printer took 4.78 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:00:38,631 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 510.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 942.0 MB in the beginning and 1.2 GB in the end (delta: -241.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1299.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 107.8 MB). Peak memory consumption was 107.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5302.18 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 123.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.9 MB). Peak memory consumption was 135.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.78 ms. Allocated memory is still 1.4 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 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 15 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 381 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1708 SDtfs, 838 SDslu, 2277 SDs, 0 SdLazy, 36 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI2 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital187 mio100 ax125 hnf105 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq229 hnf85 smp100 dnf100 smp100 tf101 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...