./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/fragtest_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/fragtest_simple.i -s /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 a94bf9d893e116ed4626eae9cec69d948eb5bc31 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:09:40,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:09:40,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:09:40,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:09:40,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:09:40,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:09:40,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:09:40,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:09:40,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:09:40,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:09:40,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:09:40,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:09:40,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:09:40,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:09:40,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:09:40,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:09:40,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:09:40,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:09:40,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:09:40,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:09:40,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:09:40,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:09:40,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:09:40,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:09:40,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:09:40,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:09:40,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:09:40,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:09:40,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:09:40,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:09:40,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:09:40,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:09:40,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:09:40,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:09:40,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:09:40,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:09:40,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:09:40,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:09:40,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:09:40,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:09:40,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:09:40,682 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:09:40,694 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:09:40,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:09:40,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:09:40,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:09:40,695 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:09:40,696 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:09:40,696 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:09:40,696 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:09:40,696 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:09:40,696 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:09:40,697 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:09:40,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:09:40,697 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:09:40,697 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:09:40,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:09:40,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:09:40,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:09:40,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:09:40,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:09:40,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:09:40,698 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:09:40,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:09:40,698 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:09:40,698 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:09:40,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:09:40,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:09:40,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:09:40,699 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:09:40,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:09:40,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:09:40,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:09:40,699 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:09:40,700 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:09:40,700 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_90304761-166e-47a1-b4e9-cbfe16018851/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 -> a94bf9d893e116ed4626eae9cec69d948eb5bc31 [2019-12-07 17:09:40,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:09:40,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:09:40,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:09:40,822 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:09:40,822 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:09:40,823 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/fragtest_simple.i [2019-12-07 17:09:40,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/bin/uautomizer/data/303744001/0b1b1d51bce24484bde765db62af0df1/FLAG21a465067 [2019-12-07 17:09:41,182 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:09:41,183 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/sv-benchmarks/c/loop-invgen/fragtest_simple.i [2019-12-07 17:09:41,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/bin/uautomizer/data/303744001/0b1b1d51bce24484bde765db62af0df1/FLAG21a465067 [2019-12-07 17:09:41,196 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/bin/uautomizer/data/303744001/0b1b1d51bce24484bde765db62af0df1 [2019-12-07 17:09:41,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:09:41,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:09:41,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:09:41,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:09:41,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:09:41,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:09:41" (1/1) ... [2019-12-07 17:09:41,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d39d888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41, skipping insertion in model container [2019-12-07 17:09:41,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:09:41" (1/1) ... [2019-12-07 17:09:41,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:09:41,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:09:41,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:09:41,324 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:09:41,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:09:41,379 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:09:41,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41 WrapperNode [2019-12-07 17:09:41,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:09:41,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:09:41,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:09:41,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:09:41,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41" (1/1) ... [2019-12-07 17:09:41,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41" (1/1) ... [2019-12-07 17:09:41,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:09:41,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:09:41,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:09:41,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:09:41,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41" (1/1) ... [2019-12-07 17:09:41,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41" (1/1) ... [2019-12-07 17:09:41,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41" (1/1) ... [2019-12-07 17:09:41,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41" (1/1) ... [2019-12-07 17:09:41,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41" (1/1) ... [2019-12-07 17:09:41,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41" (1/1) ... [2019-12-07 17:09:41,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41" (1/1) ... [2019-12-07 17:09:41,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:09:41,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:09:41,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:09:41,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:09:41,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:41,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:09:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:09:41,555 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:09:41,556 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 17:09:41,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:09:41 BoogieIcfgContainer [2019-12-07 17:09:41,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:09:41,557 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:09:41,557 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:09:41,559 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:09:41,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:09:41,560 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:09:41" (1/3) ... [2019-12-07 17:09:41,561 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e82e044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:09:41, skipping insertion in model container [2019-12-07 17:09:41,561 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:09:41,561 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:09:41" (2/3) ... [2019-12-07 17:09:41,561 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e82e044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:09:41, skipping insertion in model container [2019-12-07 17:09:41,561 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:09:41,561 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:09:41" (3/3) ... [2019-12-07 17:09:41,562 INFO L371 chiAutomizerObserver]: Analyzing ICFG fragtest_simple.i [2019-12-07 17:09:41,591 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:09:41,591 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:09:41,591 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:09:41,591 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:09:41,591 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:09:41,591 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:09:41,592 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:09:41,592 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:09:41,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-12-07 17:09:41,613 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-12-07 17:09:41,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:09:41,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:09:41,617 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 17:09:41,618 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 17:09:41,618 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:09:41,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-12-07 17:09:41,619 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-12-07 17:09:41,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:09:41,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:09:41,619 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 17:09:41,619 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 17:09:41,624 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L17-2true [2019-12-07 17:09:41,624 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2;main_~i~0 := 1 + main_~i~0; 3#L17-2true [2019-12-07 17:09:41,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:41,628 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 17:09:41,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:41,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464975227] [2019-12-07 17:09:41,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:41,699 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:41,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:41,700 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-12-07 17:09:41,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:41,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119845218] [2019-12-07 17:09:41,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:41,709 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:41,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:41,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 17:09:41,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:41,710 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025288859] [2019-12-07 17:09:41,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:41,719 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:41,749 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:09:41,749 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:09:41,749 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:09:41,749 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:09:41,750 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 17:09:41,750 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:09:41,750 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:09:41,750 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:09:41,750 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration1_Loop [2019-12-07 17:09:41,750 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:09:41,751 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:09:41,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:41,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:41,811 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:09:41,811 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:09:41,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:09:41,816 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:41,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:09:41,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:09:41,831 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 17:09:41,833 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:09:41,833 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:09:41,833 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:09:41,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:09:41,833 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:09:41,833 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:09:41,833 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:09:41,833 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:09:41,833 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration1_Loop [2019-12-07 17:09:41,833 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:09:41,834 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:09:41,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:41,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:41,862 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:09:41,866 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:41,869 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 [2019-12-07 17:09:41,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:09:41,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:09:41,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:09:41,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:09:41,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:09:41,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:09:41,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:09:41,876 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:09:41,880 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 17:09:41,881 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_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:41,885 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:09:41,885 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 17:09:41,886 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:09:41,886 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] [2019-12-07 17:09:41,890 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 17:09:41,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:09:41,919 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:09:41,919 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:09:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:09:41,926 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:09:41,926 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:09:41,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:09:41,937 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 17:09:41,938 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 2 states. [2019-12-07 17:09:41,970 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 2 states. Result 31 states and 49 transitions. Complement of second has 6 states. [2019-12-07 17:09:41,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 17:09:41,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 17:09:41,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2019-12-07 17:09:41,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 1 letters. [2019-12-07 17:09:41,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:09:41,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 1 letters. [2019-12-07 17:09:41,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:09:41,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 2 letters. [2019-12-07 17:09:41,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:09:41,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2019-12-07 17:09:41,977 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 17:09:41,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 12 states and 18 transitions. [2019-12-07 17:09:41,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 17:09:41,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 17:09:41,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 18 transitions. [2019-12-07 17:09:41,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:09:41,981 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2019-12-07 17:09:41,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 18 transitions. [2019-12-07 17:09:41,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 17:09:41,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 17:09:41,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2019-12-07 17:09:41,999 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2019-12-07 17:09:41,999 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2019-12-07 17:09:41,999 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:09:41,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2019-12-07 17:09:41,999 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 17:09:42,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:09:42,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:09:42,000 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 17:09:42,000 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 17:09:42,000 INFO L794 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 76#L17-2 assume !(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2; 77#L17-3 assume !(main_~i~0 > main_~pvlen~0); 87#L20-1 main_~i~0 := 0; 84#L24-2 [2019-12-07 17:09:42,000 INFO L796 eck$LassoCheckResult]: Loop: 84#L24-2 assume !!(0 != main_#t~nondet3 && main_~i~0 <= 1000000);havoc main_#t~nondet3;main_~tmp___1~0 := main_~i~0;main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 84#L24-2 [2019-12-07 17:09:42,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:42,001 INFO L82 PathProgramCache]: Analyzing trace with hash 961578, now seen corresponding path program 1 times [2019-12-07 17:09:42,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:42,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72224170] [2019-12-07 17:09:42,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:42,008 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:42,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:42,008 INFO L82 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times [2019-12-07 17:09:42,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:42,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499238848] [2019-12-07 17:09:42,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:42,016 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:42,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:42,016 INFO L82 PathProgramCache]: Analyzing trace with hash 29808947, now seen corresponding path program 1 times [2019-12-07 17:09:42,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:42,017 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121410663] [2019-12-07 17:09:42,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:42,025 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:42,041 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:09:42,041 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:09:42,041 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:09:42,041 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:09:42,042 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 17:09:42,042 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:09:42,042 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:09:42,042 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:09:42,042 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration2_Loop [2019-12-07 17:09:42,042 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:09:42,042 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:09:42,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,084 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:09:42,084 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:42,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:09:42,087 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:42,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:09:42,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:09:42,101 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 17:09:42,102 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:09:42,102 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:09:42,102 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:09:42,102 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:09:42,102 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:09:42,102 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:09:42,102 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:09:42,102 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:09:42,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration2_Loop [2019-12-07 17:09:42,102 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:09:42,103 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:09:42,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,143 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:09:42,143 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:42,146 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 [2019-12-07 17:09:42,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:09:42,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:09:42,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:09:42,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:09:42,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:09:42,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:09:42,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:09:42,151 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:09:42,153 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 17:09:42,153 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:42,155 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:09:42,155 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 17:09:42,155 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:09:42,155 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] [2019-12-07 17:09:42,157 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 17:09:42,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:09:42,175 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:09:42,175 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:09:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:09:42,181 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:09:42,181 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:09:42,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:09:42,182 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 17:09:42,182 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand 2 states. [2019-12-07 17:09:42,194 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand 2 states. Result 28 states and 39 transitions. Complement of second has 6 states. [2019-12-07 17:09:42,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 17:09:42,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 17:09:42,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2019-12-07 17:09:42,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 1 letters. [2019-12-07 17:09:42,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:09:42,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 1 letters. [2019-12-07 17:09:42,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:09:42,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 17:09:42,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:09:42,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 39 transitions. [2019-12-07 17:09:42,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 17:09:42,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 16 states and 22 transitions. [2019-12-07 17:09:42,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 17:09:42,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 17:09:42,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2019-12-07 17:09:42,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:09:42,199 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-12-07 17:09:42,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2019-12-07 17:09:42,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-12-07 17:09:42,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 17:09:42,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2019-12-07 17:09:42,200 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2019-12-07 17:09:42,201 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2019-12-07 17:09:42,201 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:09:42,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2019-12-07 17:09:42,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 17:09:42,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:09:42,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:09:42,202 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:09:42,202 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 17:09:42,202 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 152#L17-2 assume !(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2; 153#L17-3 assume !(main_~i~0 > main_~pvlen~0); 164#L20-1 main_~i~0 := 0; 160#L24-2 assume !(0 != main_#t~nondet3 && main_~i~0 <= 1000000);havoc main_#t~nondet3; 155#L24-3 main_~j~0 := 0;main_~n~0 := main_~i~0; 156#L31-2 assume !false;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 163#L4 assume !(0 == __VERIFIER_assert_~cond); 158#L4-2 [2019-12-07 17:09:42,202 INFO L796 eck$LassoCheckResult]: Loop: 158#L4-2 main_~k~0 := main_~k~0 - 1;main_~i~0 := main_~i~0 - 1;main_~j~0 := 1 + main_~j~0; 162#L36 assume !(main_~j~0 >= main_~n~0); 165#L31-2 assume !false;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 166#L4 assume !(0 == __VERIFIER_assert_~cond); 158#L4-2 [2019-12-07 17:09:42,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:42,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1019916713, now seen corresponding path program 1 times [2019-12-07 17:09:42,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:42,202 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713109983] [2019-12-07 17:09:42,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:42,214 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:42,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:42,215 INFO L82 PathProgramCache]: Analyzing trace with hash 2528781, now seen corresponding path program 1 times [2019-12-07 17:09:42,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:42,215 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300491334] [2019-12-07 17:09:42,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:09:42,224 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:09:42,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:42,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1891682659, now seen corresponding path program 1 times [2019-12-07 17:09:42,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:09:42,224 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954157141] [2019-12-07 17:09:42,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:09:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:09:42,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:09:42,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954157141] [2019-12-07 17:09:42,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:09:42,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:09:42,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515385772] [2019-12-07 17:09:42,291 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:09:42,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:09:42,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:09:42,291 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:09:42,291 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 17:09:42,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:09:42,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:09:42,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:09:42,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration3_Loop [2019-12-07 17:09:42,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:09:42,292 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:09:42,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,356 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:09:42,357 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:42,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:09:42,359 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:42,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:09:42,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:09:42,687 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 17:09:42,688 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:09:42,688 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:09:42,688 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:09:42,688 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:09:42,688 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:09:42,688 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:09:42,688 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:09:42,689 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:09:42,689 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration3_Loop [2019-12-07 17:09:42,689 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:09:42,689 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:09:42,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:09:42,758 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:09:42,758 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:42,761 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 [2019-12-07 17:09:42,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:09:42,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:09:42,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:09:42,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:09:42,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:09:42,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:09:42,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:09:42,765 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:09:42,769 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 17:09:42,769 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90304761-166e-47a1-b4e9-cbfe16018851/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 [2019-12-07 17:09:42,771 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:09:42,772 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 17:09:42,772 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:09:42,772 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-12-07 17:09:42,773 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 17:09:42,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:09:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:09:42,788 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:09:42,788 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:09:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:09:42,793 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:09:42,793 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:09:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:09:42,815 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 17:09:42,816 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-12-07 17:09:42,827 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 26 states and 33 transitions. Complement of second has 7 states. [2019-12-07 17:09:42,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 17:09:42,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 17:09:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2019-12-07 17:09:42,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 8 letters. Loop has 4 letters. [2019-12-07 17:09:42,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:09:42,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2019-12-07 17:09:42,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:09:42,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 8 letters. Loop has 8 letters. [2019-12-07 17:09:42,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:09:42,829 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2019-12-07 17:09:42,830 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:09:42,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2019-12-07 17:09:42,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 17:09:42,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 17:09:42,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 17:09:42,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:09:42,830 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:09:42,830 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:09:42,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:09:42,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:09:42,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:09:42,833 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2019-12-07 17:09:42,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:09:42,835 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-12-07 17:09:42,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 17:09:42,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-12-07 17:09:42,835 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:09:42,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:09:42,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 17:09:42,835 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 17:09:42,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 17:09:42,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:09:42,836 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:09:42,836 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:09:42,836 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:09:42,836 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 17:09:42,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:09:42,836 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:09:42,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 17:09:42,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:09:42 BoogieIcfgContainer [2019-12-07 17:09:42,840 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:09:42,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:09:42,841 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:09:42,841 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:09:42,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:09:41" (3/4) ... [2019-12-07 17:09:42,843 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:09:42,843 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:09:42,845 INFO L168 Benchmark]: Toolchain (without parser) took 1645.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 943.3 MB in the beginning and 868.9 MB in the end (delta: 74.4 MB). Peak memory consumption was 161.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:42,845 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:09:42,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:42,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:42,846 INFO L168 Benchmark]: Boogie Preprocessor took 12.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:42,847 INFO L168 Benchmark]: RCFGBuilder took 142.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:42,847 INFO L168 Benchmark]: BuchiAutomizer took 1283.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 868.9 MB in the end (delta: 195.7 MB). Peak memory consumption was 195.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:09:42,847 INFO L168 Benchmark]: Witness Printer took 2.76 ms. Allocated memory is still 1.1 GB. Free memory is still 868.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:09:42,850 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 142.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1283.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 868.9 MB in the end (delta: 195.7 MB). Peak memory consumption was 195.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.76 ms. Allocated memory is still 1.1 GB. Free memory is still 868.9 MB. 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 (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function n + -1 * j and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 26 SDslu, 9 SDs, 0 SdLazy, 20 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf99 lsp64 ukn100 mio100 lsp100 div100 bol100 ite112 ukn100 eq170 hnf91 smp84 dnf100 smp100 tf110 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 19ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...