./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex04.c --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_d93a999a-b052-4ac8-be4a-c6f6805acfd8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex04.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 af2ddbb903c4368307185214b2ec9c8b5acf03e6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:13:37,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:13:37,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:13:37,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:13:37,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:13:37,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:13:37,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:13:37,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:13:37,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:13:37,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:13:37,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:13:37,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:13:37,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:13:37,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:13:37,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:13:37,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:13:37,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:13:37,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:13:37,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:13:37,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:13:37,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:13:37,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:13:37,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:13:37,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:13:37,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:13:37,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:13:37,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:13:37,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:13:37,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:13:37,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:13:37,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:13:37,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:13:37,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:13:37,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:13:37,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:13:37,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:13:37,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:13:37,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:13:37,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:13:37,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:13:37,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:13:37,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 12:13:37,632 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:13:37,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:13:37,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:13:37,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:13:37,634 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:13:37,634 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:13:37,634 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:13:37,634 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:13:37,635 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:13:37,635 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:13:37,635 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:13:37,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:13:37,635 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:13:37,635 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:13:37,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:13:37,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:13:37,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:13:37,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:13:37,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:13:37,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:13:37,637 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:13:37,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:13:37,637 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:13:37,637 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:13:37,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:13:37,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:13:37,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:13:37,638 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:13:37,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:13:37,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:13:37,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:13:37,639 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:13:37,639 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:13:37,640 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_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 -> af2ddbb903c4368307185214b2ec9c8b5acf03e6 [2019-12-07 12:13:37,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:13:37,748 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:13:37,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:13:37,751 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:13:37,751 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:13:37,752 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/bin/uautomizer/../../sv-benchmarks/c/loops/trex04.c [2019-12-07 12:13:37,789 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/bin/uautomizer/data/f2c4f204e/924dd747514742d3b307cba1c0ff2135/FLAG345490b5f [2019-12-07 12:13:38,109 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:13:38,109 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/sv-benchmarks/c/loops/trex04.c [2019-12-07 12:13:38,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/bin/uautomizer/data/f2c4f204e/924dd747514742d3b307cba1c0ff2135/FLAG345490b5f [2019-12-07 12:13:38,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/bin/uautomizer/data/f2c4f204e/924dd747514742d3b307cba1c0ff2135 [2019-12-07 12:13:38,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:13:38,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:13:38,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:13:38,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:13:38,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:13:38,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:13:38" (1/1) ... [2019-12-07 12:13:38,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174ba895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38, skipping insertion in model container [2019-12-07 12:13:38,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:13:38" (1/1) ... [2019-12-07 12:13:38,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:13:38,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:13:38,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:13:38,248 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:13:38,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:13:38,301 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:13:38,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38 WrapperNode [2019-12-07 12:13:38,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:13:38,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:13:38,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:13:38,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:13:38,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38" (1/1) ... [2019-12-07 12:13:38,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38" (1/1) ... [2019-12-07 12:13:38,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:13:38,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:13:38,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:13:38,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:13:38,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38" (1/1) ... [2019-12-07 12:13:38,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38" (1/1) ... [2019-12-07 12:13:38,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38" (1/1) ... [2019-12-07 12:13:38,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38" (1/1) ... [2019-12-07 12:13:38,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38" (1/1) ... [2019-12-07 12:13:38,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38" (1/1) ... [2019-12-07 12:13:38,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38" (1/1) ... [2019-12-07 12:13:38,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:13:38,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:13:38,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:13:38,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:13:38,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:38,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:13:38,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:13:38,506 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:13:38,506 INFO L287 CfgBuilder]: Removed 11 assume(true) statements. [2019-12-07 12:13:38,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:13:38 BoogieIcfgContainer [2019-12-07 12:13:38,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:13:38,508 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:13:38,508 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:13:38,510 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:13:38,511 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:13:38,511 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:13:38" (1/3) ... [2019-12-07 12:13:38,511 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3022b21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:13:38, skipping insertion in model container [2019-12-07 12:13:38,511 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:13:38,512 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:13:38" (2/3) ... [2019-12-07 12:13:38,512 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3022b21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:13:38, skipping insertion in model container [2019-12-07 12:13:38,512 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:13:38,512 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:13:38" (3/3) ... [2019-12-07 12:13:38,513 INFO L371 chiAutomizerObserver]: Analyzing ICFG trex04.c [2019-12-07 12:13:38,542 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:13:38,542 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:13:38,542 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:13:38,542 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:13:38,542 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:13:38,542 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:13:38,542 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:13:38,542 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:13:38,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-12-07 12:13:38,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 12:13:38,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:13:38,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:13:38,569 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:13:38,569 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 12:13:38,569 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:13:38,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-12-07 12:13:38,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 12:13:38,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:13:38,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:13:38,571 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:13:38,571 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 12:13:38,578 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 4#L26true assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 9#L29true assume !(0 != main_~c1~1 % 256); 6#L29-2true assume !(0 != main_~c2~1 % 256); 10#L30true main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 15#L34true assume !(0 != main_~c1~1 % 256); 12#L34-1true assume !(0 != main_~c2~1 % 256); 20#L37-1true [2019-12-07 12:13:38,578 INFO L796 eck$LassoCheckResult]: Loop: 20#L37-1true assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 20#L37-1true [2019-12-07 12:13:38,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:38,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1481824371, now seen corresponding path program 1 times [2019-12-07 12:13:38,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:13:38,588 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345492385] [2019-12-07 12:13:38,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:13:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:38,666 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:13:38,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:38,667 INFO L82 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 1 times [2019-12-07 12:13:38,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:13:38,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390219514] [2019-12-07 12:13:38,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:13:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:38,673 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:13:38,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:38,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1308084818, now seen corresponding path program 1 times [2019-12-07 12:13:38,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:13:38,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997478464] [2019-12-07 12:13:38,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:13:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:38,690 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:13:38,764 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:13:38,765 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:13:38,765 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:13:38,765 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:13:38,765 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:13:38,765 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:38,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:13:38,765 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:13:38,765 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex04.c_Iteration1_Lasso [2019-12-07 12:13:38,765 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:13:38,765 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:13:38,777 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 12:13:38,781 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 12:13:38,785 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 12:13:38,788 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 12:13:38,790 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 12:13:38,792 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 12:13:38,794 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 12:13:38,796 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 12:13:38,806 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 12:13:38,897 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:13:38,898 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:38,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:38,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:38,909 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:13:38,909 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:38,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:38,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:38,923 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:13:38,923 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c1~1=0} Honda state: {ULTIMATE.start_main_~c1~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:38,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:38,927 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:38,934 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:13:38,934 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c2~1=0} Honda state: {ULTIMATE.start_main_~c2~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:38,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:38,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:38,941 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:13:38,941 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:38,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:38,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:38,948 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:13:38,948 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:38,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:38,955 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:38,958 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:13:38,958 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:38,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:38,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:38,966 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:13:38,966 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet8=0} Honda state: {ULTIMATE.start_main_#t~nondet8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:38,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:13:38,969 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:38,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:13:38,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:13:38,983 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 12:13:38,984 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:13:38,984 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:13:38,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:13:38,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:13:38,985 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:13:38,985 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:38,985 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:13:38,985 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:13:38,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex04.c_Iteration1_Lasso [2019-12-07 12:13:38,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:13:38,985 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:13:38,986 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 12:13:38,988 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 12:13:38,990 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 12:13:38,992 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 12:13:38,994 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 12:13:38,996 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 12:13:38,998 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 12:13:39,006 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 12:13:39,008 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 12:13:39,078 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:13:39,081 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:39,086 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 12:13:39,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:13:39,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:13:39,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:13:39,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:13:39,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:13:39,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:13:39,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:13:39,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:39,097 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 12:13:39,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:13:39,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:13:39,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:13:39,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:13:39,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:13:39,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:13:39,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:13:39,100 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 12:13:39,104 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 12:13:39,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:13:39,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:13:39,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:13:39,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:13:39,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:13:39,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:13:39,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 [2019-12-07 12:13:39,117 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 12:13:39,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:13:39,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:13:39,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:13:39,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:13:39,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:13:39,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:13:39,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:13:39,121 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:39,126 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 12:13:39,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:13:39,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:13:39,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:13:39,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:13:39,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:13:39,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:13:39,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:39,139 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 12:13:39,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:13:39,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:13:39,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:13:39,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:13:39,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:13:39,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:13:39,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:13:39,143 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:13:39,147 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 12:13:39,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:13:39,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:13:39,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:13:39,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:13:39,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:13:39,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:13:39,158 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:13:39,165 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-12-07 12:13:39,165 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/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 [2019-12-07 12:13:39,169 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:13:39,174 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 12:13:39,174 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:13:39,175 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~d~0 - 1 >= 0] [2019-12-07 12:13:39,180 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-12-07 12:13:39,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:13:39,217 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:13:39,218 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:13:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:13:39,231 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:13:39,232 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:13:39,232 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 12:13:39,243 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-12-07 12:13:39,244 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2019-12-07 12:13:39,305 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 61 states and 89 transitions. Complement of second has 8 states. [2019-12-07 12:13:39,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2019-12-07 12:13:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 12:13:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2019-12-07 12:13:39,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 7 letters. Loop has 1 letters. [2019-12-07 12:13:39,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:13:39,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 8 letters. Loop has 1 letters. [2019-12-07 12:13:39,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:13:39,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 12:13:39,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:13:39,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 89 transitions. [2019-12-07 12:13:39,314 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-12-07 12:13:39,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 23 states and 37 transitions. [2019-12-07 12:13:39,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-12-07 12:13:39,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-12-07 12:13:39,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 37 transitions. [2019-12-07 12:13:39,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:13:39,319 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 37 transitions. [2019-12-07 12:13:39,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 37 transitions. [2019-12-07 12:13:39,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-12-07 12:13:39,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 12:13:39,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 34 transitions. [2019-12-07 12:13:39,340 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 34 transitions. [2019-12-07 12:13:39,340 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 34 transitions. [2019-12-07 12:13:39,340 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 12:13:39,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 34 transitions. [2019-12-07 12:13:39,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 12:13:39,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:13:39,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:13:39,342 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:13:39,342 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 12:13:39,342 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 145#L26 assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 146#L29 assume 0 != main_~c1~1 % 256;main_~d~0 := main_~d~0 - 1; 148#L29-2 assume !(0 != main_~c2~1 % 256); 144#L30 main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 154#L34 assume !(0 != main_~c1~1 % 256); 153#L34-1 assume !(0 != main_~c2~1 % 256); 151#L37-1 [2019-12-07 12:13:39,343 INFO L796 eck$LassoCheckResult]: Loop: 151#L37-1 assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 151#L37-1 [2019-12-07 12:13:39,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:39,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1483671413, now seen corresponding path program 1 times [2019-12-07 12:13:39,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:13:39,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774754570] [2019-12-07 12:13:39,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:13:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:39,358 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:13:39,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:39,358 INFO L82 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 2 times [2019-12-07 12:13:39,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:13:39,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233582554] [2019-12-07 12:13:39,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:13:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:39,362 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:13:39,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:13:39,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1250826516, now seen corresponding path program 1 times [2019-12-07 12:13:39,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:13:39,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273668] [2019-12-07 12:13:39,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:13:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:13:39,377 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:13:39,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:13:39 BoogieIcfgContainer [2019-12-07 12:13:39,433 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:13:39,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:13:39,434 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:13:39,434 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:13:39,434 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:13:38" (3/4) ... [2019-12-07 12:13:39,436 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 12:13:39,462 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d93a999a-b052-4ac8-be4a-c6f6805acfd8/bin/uautomizer/witness.graphml [2019-12-07 12:13:39,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:13:39,464 INFO L168 Benchmark]: Toolchain (without parser) took 1338.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 942.4 MB in the beginning and 893.9 MB in the end (delta: 48.5 MB). Peak memory consumption was 150.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:39,464 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:13:39,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:39,465 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:13:39,465 INFO L168 Benchmark]: Boogie Preprocessor took 13.36 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:39,466 INFO L168 Benchmark]: RCFGBuilder took 169.27 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: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:39,466 INFO L168 Benchmark]: BuchiAutomizer took 925.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 899.3 MB in the end (delta: 179.4 MB). Peak memory consumption was 179.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:39,466 INFO L168 Benchmark]: Witness Printer took 28.97 ms. Allocated memory is still 1.1 GB. Free memory was 899.3 MB in the beginning and 893.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:13:39,468 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.36 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 169.27 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: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 925.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 899.3 MB in the end (delta: 179.4 MB). Peak memory consumption was 179.4 MB. Max. memory is 11.5 GB. * Witness Printer took 28.97 ms. Allocated memory is still 1.1 GB. Free memory was 899.3 MB in the beginning and 893.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function x and consists of 6 locations. The remainder module has 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 44 SDtfs, 46 SDslu, 24 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax100 hnf93 lsp67 ukn100 mio100 lsp100 div209 bol100 ite100 ukn100 eq145 hnf45 smp100 dnf100 smp100 tf100 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 37]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6abce199=0, d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@134ed0d0=0, c2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11688838=0, c1=0, \result=0, x=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7479942f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79440310=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L24] int d = 1; [L25] int x = __VERIFIER_nondet_int(); [L26] COND FALSE !(!(x <= 1000000 && x >= -1000000)) [L27] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L27] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L29] COND TRUE \read(c1) [L29] d = d - 1 [L30] COND FALSE !(\read(c2)) [L32] c1=__VERIFIER_nondet_bool() [L32] c2=__VERIFIER_nondet_bool() [L34] COND FALSE !(\read(c1)) [L35] COND FALSE !(\read(c2)) Loop: [L37] COND TRUE x>0 [L39] x=x-d End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...