./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/Binomial.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/Binomial.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg --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 64bit --witnessprinter.graph.data.programhash c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: loopTF is false but loop analysis said: feasible --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:39:54,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:39:54,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:39:54,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:39:54,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:39:54,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:39:54,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:39:54,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:39:54,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:39:54,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:39:54,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:39:54,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:39:54,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:39:54,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:39:54,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:39:54,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:39:54,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:39:54,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:39:54,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:39:54,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:39:54,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:39:54,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:39:54,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:39:54,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:39:54,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:39:54,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:39:54,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:39:54,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:39:54,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:39:54,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:39:54,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:39:54,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:39:54,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:39:54,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:39:54,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:39:54,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:39:54,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:39:54,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:39:54,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:39:54,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:39:54,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:39:54,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 08:39:54,398 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:39:54,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:39:54,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:39:54,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:39:54,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:39:54,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:39:54,401 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:39:54,401 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:39:54,401 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:39:54,401 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:39:54,401 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:39:54,402 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:39:54,402 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:39:54,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:39:54,402 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:39:54,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:39:54,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:39:54,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:39:54,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:39:54,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:39:54,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:39:54,404 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:39:54,404 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:39:54,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:39:54,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:39:54,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:39:54,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:39:54,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:39:54,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:39:54,406 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:39:54,407 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 [2021-10-28 08:39:54,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:39:54,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:39:54,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:39:54,791 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:39:54,792 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:39:54,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-numeric/Binomial.c [2021-10-28 08:39:54,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/data/c16e9465e/4fdc3f28a9664de4971e7ba436fc9a0d/FLAG2f4564ac7 [2021-10-28 08:39:55,435 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:39:55,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/sv-benchmarks/c/termination-numeric/Binomial.c [2021-10-28 08:39:55,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/data/c16e9465e/4fdc3f28a9664de4971e7ba436fc9a0d/FLAG2f4564ac7 [2021-10-28 08:39:55,803 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/data/c16e9465e/4fdc3f28a9664de4971e7ba436fc9a0d [2021-10-28 08:39:55,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:39:55,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:39:55,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:39:55,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:39:55,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:39:55,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:39:55" (1/1) ... [2021-10-28 08:39:55,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23784cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:55, skipping insertion in model container [2021-10-28 08:39:55,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:39:55" (1/1) ... [2021-10-28 08:39:55,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:39:55,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:39:56,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:39:56,145 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:39:56,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:39:56,177 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:39:56,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56 WrapperNode [2021-10-28 08:39:56,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:39:56,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:39:56,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:39:56,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:39:56,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56" (1/1) ... [2021-10-28 08:39:56,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56" (1/1) ... [2021-10-28 08:39:56,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:39:56,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:39:56,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:39:56,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:39:56,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56" (1/1) ... [2021-10-28 08:39:56,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56" (1/1) ... [2021-10-28 08:39:56,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56" (1/1) ... [2021-10-28 08:39:56,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56" (1/1) ... [2021-10-28 08:39:56,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56" (1/1) ... [2021-10-28 08:39:56,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56" (1/1) ... [2021-10-28 08:39:56,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56" (1/1) ... [2021-10-28 08:39:56,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:39:56,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:39:56,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:39:56,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:39:56,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56" (1/1) ... [2021-10-28 08:39:56,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:56,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:56,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:56,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:39:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2021-10-28 08:39:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2021-10-28 08:39:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:39:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:39:56,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:39:56,634 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 08:39:56,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:39:56 BoogieIcfgContainer [2021-10-28 08:39:56,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:39:56,638 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:39:56,638 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:39:56,647 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:39:56,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:39:56,648 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:39:55" (1/3) ... [2021-10-28 08:39:56,649 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6af50488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:39:56, skipping insertion in model container [2021-10-28 08:39:56,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:39:56,650 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:39:56" (2/3) ... [2021-10-28 08:39:56,650 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6af50488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:39:56, skipping insertion in model container [2021-10-28 08:39:56,651 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:39:56,651 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:39:56" (3/3) ... [2021-10-28 08:39:56,652 INFO L389 chiAutomizerObserver]: Analyzing ICFG Binomial.c [2021-10-28 08:39:56,707 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:39:56,708 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:39:56,708 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:39:56,708 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:39:56,708 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:39:56,708 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:39:56,709 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:39:56,709 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:39:56,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 08:39:56,756 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-28 08:39:56,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:39:56,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:39:56,763 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:39:56,763 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:39:56,763 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:39:56,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 08:39:56,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-28 08:39:56,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:39:56,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:39:56,771 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:39:56,771 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:39:56,779 INFO L791 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 17#L35true assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 27#L38true assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 13#L41-3true [2021-10-28 08:39:56,779 INFO L793 eck$LassoCheckResult]: Loop: 13#L41-3true assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 22#L42-3true assume !(main_~k~0 <= main_~x~0); 14#L41-2true main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 13#L41-3true [2021-10-28 08:39:56,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:56,786 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 1 times [2021-10-28 08:39:56,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:56,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985871173] [2021-10-28 08:39:56,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:56,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:56,913 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:56,957 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:56,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:56,966 INFO L85 PathProgramCache]: Analyzing trace with hash 56819, now seen corresponding path program 1 times [2021-10-28 08:39:56,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:56,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948021502] [2021-10-28 08:39:56,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:56,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:56,989 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:57,009 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:57,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:57,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1158688391, now seen corresponding path program 1 times [2021-10-28 08:39:57,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:57,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158705087] [2021-10-28 08:39:57,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:57,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:57,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:57,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:57,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158705087] [2021-10-28 08:39:57,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158705087] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:57,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:57,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:39:57,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836781201] [2021-10-28 08:39:57,216 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:39:57,217 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:39:57,217 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:39:57,218 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:39:57,218 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:39:57,218 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:57,219 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:39:57,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:39:57,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration1_Loop [2021-10-28 08:39:57,219 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:39:57,220 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:39:57,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:57,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:57,319 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:39:57,320 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:39:57,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:57,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:57,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:57,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:39:57,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:39:57,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:39:57,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:39:57,355 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:39:57,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:57,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:57,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:57,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:57,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:39:57,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:39:57,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:39:57,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:57,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:57,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:57,425 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:57,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:39:57,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:39:57,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:39:57,657 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:39:57,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:57,670 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:39:57,670 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:39:57,671 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:39:57,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:39:57,671 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:39:57,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:57,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:39:57,672 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:39:57,672 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration1_Loop [2021-10-28 08:39:57,672 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:39:57,672 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:39:57,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:57,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:39:57,756 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:39:57,761 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:39:57,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:57,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:57,766 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:57,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:39:57,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:57,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:57,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:57,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:57,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:57,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:57,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:57,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:57,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:39:57,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:57,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:57,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:57,833 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:57,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:39:57,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:39:57,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:39:57,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:39:57,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:39:57,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:39:57,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:39:57,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:39:57,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:39:57,862 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:39:57,871 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-28 08:39:57,871 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-10-28 08:39:57,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:39:57,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:57,875 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:39:57,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:39:57,912 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:39:57,912 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:39:57,912 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:39:57,913 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-10-28 08:39:57,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:57,957 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:39:57,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:57,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:39:57,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:58,020 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:39:58,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:58,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:39:58,129 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 [2021-10-28 08:39:58,131 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:58,234 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 105 transitions. Complement of second has 11 states. [2021-10-28 08:39:58,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 08:39:58,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:58,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 53 transitions. [2021-10-28 08:39:58,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 08:39:58,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:39:58,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 08:39:58,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:39:58,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 08:39:58,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:39:58,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 105 transitions. [2021-10-28 08:39:58,252 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-28 08:39:58,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 32 states and 47 transitions. [2021-10-28 08:39:58,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-10-28 08:39:58,262 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-28 08:39:58,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 47 transitions. [2021-10-28 08:39:58,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:39:58,263 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 47 transitions. [2021-10-28 08:39:58,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 47 transitions. [2021-10-28 08:39:58,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2021-10-28 08:39:58,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 states have internal predecessors, (27), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 08:39:58,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 41 transitions. [2021-10-28 08:39:58,296 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 41 transitions. [2021-10-28 08:39:58,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:58,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:39:58,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:39:58,302 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:39:58,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:39:58,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:58,434 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2021-10-28 08:39:58,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:39:58,435 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2021-10-28 08:39:58,441 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-10-28 08:39:58,446 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 36 transitions. [2021-10-28 08:39:58,446 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-28 08:39:58,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-28 08:39:58,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2021-10-28 08:39:58,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:39:58,448 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-10-28 08:39:58,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2021-10-28 08:39:58,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-10-28 08:39:58,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 08:39:58,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2021-10-28 08:39:58,453 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-10-28 08:39:58,453 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-10-28 08:39:58,453 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:39:58,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 34 transitions. [2021-10-28 08:39:58,455 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-10-28 08:39:58,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:39:58,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:39:58,459 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:39:58,459 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:58,460 INFO L791 eck$LassoCheckResult]: Stem: 225#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 226#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 233#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 234#L41-3 [2021-10-28 08:39:58,461 INFO L793 eck$LassoCheckResult]: Loop: 234#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 229#L42-3 assume !!(main_~k~0 <= main_~x~0); 228#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 212#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 213#factENTRY ~n := #in~n; 227#L25 assume ~n <= 0;#res := 1; 224#factFINAL assume true; 214#factEXIT >#73#return; 216#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 213#factENTRY ~n := #in~n; 227#L25 assume ~n <= 0;#res := 1; 224#factFINAL assume true; 214#factEXIT >#75#return; 218#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 213#factENTRY ~n := #in~n; 227#L25 assume ~n <= 0;#res := 1; 224#factFINAL assume true; 214#factEXIT >#77#return; 222#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 230#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 231#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 232#L42-3 assume !(main_~k~0 <= main_~x~0); 236#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 234#L41-3 [2021-10-28 08:39:58,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:58,462 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 2 times [2021-10-28 08:39:58,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:58,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617270197] [2021-10-28 08:39:58,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:58,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:58,474 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:58,480 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:58,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:58,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1052427359, now seen corresponding path program 1 times [2021-10-28 08:39:58,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:58,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888676995] [2021-10-28 08:39:58,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:58,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:58,497 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:39:58,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1079985239] [2021-10-28 08:39:58,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:58,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:58,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:58,511 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:58,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 08:39:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:58,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:39:58,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 08:39:58,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:58,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888676995] [2021-10-28 08:39:58,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:39:58,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079985239] [2021-10-28 08:39:58,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079985239] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:39:58,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:39:58,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:39:58,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105323629] [2021-10-28 08:39:58,758 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:39:58,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:58,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:39:58,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:39:58,760 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. cyclomatic complexity: 11 Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 08:39:58,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:58,867 INFO L93 Difference]: Finished difference Result 33 states and 49 transitions. [2021-10-28 08:39:58,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:39:58,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2021-10-28 08:39:58,874 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2021-10-28 08:39:58,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 49 transitions. [2021-10-28 08:39:58,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-28 08:39:58,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-28 08:39:58,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 49 transitions. [2021-10-28 08:39:58,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:39:58,878 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 49 transitions. [2021-10-28 08:39:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 49 transitions. [2021-10-28 08:39:58,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2021-10-28 08:39:58,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2021-10-28 08:39:58,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 41 transitions. [2021-10-28 08:39:58,892 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 41 transitions. [2021-10-28 08:39:58,892 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 41 transitions. [2021-10-28 08:39:58,892 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:39:58,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 41 transitions. [2021-10-28 08:39:58,895 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-10-28 08:39:58,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:39:58,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:39:58,899 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:39:58,899 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:58,899 INFO L791 eck$LassoCheckResult]: Stem: 358#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 359#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 368#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 369#L41-3 [2021-10-28 08:39:58,900 INFO L793 eck$LassoCheckResult]: Loop: 369#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 363#L42-3 assume !!(main_~k~0 <= main_~x~0); 361#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 354#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 347#factENTRY ~n := #in~n; 360#L25 assume !(~n <= 0); 349#L26 call #t~ret0 := fact(~n - 1);< 347#factENTRY ~n := #in~n; 360#L25 assume ~n <= 0;#res := 1; 357#factFINAL assume true; 348#factEXIT >#65#return; 355#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 362#factFINAL assume true; 372#factEXIT >#67#return; 350#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 347#factENTRY ~n := #in~n; 360#L25 assume !(~n <= 0); 349#L26 call #t~ret0 := fact(~n - 1);< 347#factENTRY ~n := #in~n; 360#L25 assume ~n <= 0;#res := 1; 357#factFINAL assume true; 348#factEXIT >#65#return; 355#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 362#factFINAL assume true; 372#factEXIT >#69#return; 352#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 347#factENTRY ~n := #in~n; 360#L25 assume !(~n <= 0); 349#L26 call #t~ret0 := fact(~n - 1);< 347#factENTRY ~n := #in~n; 360#L25 assume ~n <= 0;#res := 1; 357#factFINAL assume true; 348#factEXIT >#65#return; 355#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 362#factFINAL assume true; 372#factEXIT >#71#return; 356#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 370#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 366#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 367#L42-3 assume !(main_~k~0 <= main_~x~0); 371#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 369#L41-3 [2021-10-28 08:39:58,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:58,900 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 3 times [2021-10-28 08:39:58,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:58,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646620022] [2021-10-28 08:39:58,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:58,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:58,913 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:58,925 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:58,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:58,926 INFO L85 PathProgramCache]: Analyzing trace with hash 595054747, now seen corresponding path program 1 times [2021-10-28 08:39:58,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:58,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207277787] [2021-10-28 08:39:58,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:58,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:58,946 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:39:58,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [734444482] [2021-10-28 08:39:58,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:58,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:58,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:58,948 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:58,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 08:39:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:39:59,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:39:59,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:59,177 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-28 08:39:59,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:59,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207277787] [2021-10-28 08:39:59,178 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:39:59,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734444482] [2021-10-28 08:39:59,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734444482] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:59,179 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:39:59,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 08:39:59,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699035175] [2021-10-28 08:39:59,180 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:39:59,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:59,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:39:59,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:39:59,181 INFO L87 Difference]: Start difference. First operand 27 states and 41 transitions. cyclomatic complexity: 16 Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 08:39:59,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:39:59,383 INFO L93 Difference]: Finished difference Result 45 states and 72 transitions. [2021-10-28 08:39:59,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:39:59,384 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 72 transitions. [2021-10-28 08:39:59,386 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2021-10-28 08:39:59,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 72 transitions. [2021-10-28 08:39:59,389 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2021-10-28 08:39:59,389 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2021-10-28 08:39:59,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 72 transitions. [2021-10-28 08:39:59,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:39:59,391 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 72 transitions. [2021-10-28 08:39:59,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 72 transitions. [2021-10-28 08:39:59,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 32. [2021-10-28 08:39:59,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 11 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (19), 9 states have call predecessors, (19), 11 states have call successors, (19) [2021-10-28 08:39:59,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2021-10-28 08:39:59,398 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 53 transitions. [2021-10-28 08:39:59,398 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 53 transitions. [2021-10-28 08:39:59,398 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:39:59,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 53 transitions. [2021-10-28 08:39:59,399 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 24 [2021-10-28 08:39:59,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:39:59,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:39:59,401 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:39:59,401 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:39:59,402 INFO L791 eck$LassoCheckResult]: Stem: 567#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 568#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 577#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 578#L41-3 [2021-10-28 08:39:59,402 INFO L793 eck$LassoCheckResult]: Loop: 578#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 572#L42-3 assume !!(main_~k~0 <= main_~x~0); 570#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 563#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 552#factENTRY ~n := #in~n; 569#L25 assume !(~n <= 0); 554#L26 call #t~ret0 := fact(~n - 1);< 552#factENTRY ~n := #in~n; 569#L25 assume ~n <= 0;#res := 1; 566#factFINAL assume true; 553#factEXIT >#65#return; 564#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 571#factFINAL assume true; 581#factEXIT >#67#return; 555#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 552#factENTRY ~n := #in~n; 569#L25 assume ~n <= 0;#res := 1; 566#factFINAL assume true; 553#factEXIT >#69#return; 557#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 552#factENTRY ~n := #in~n; 569#L25 assume !(~n <= 0); 554#L26 call #t~ret0 := fact(~n - 1);< 552#factENTRY ~n := #in~n; 569#L25 assume ~n <= 0;#res := 1; 566#factFINAL assume true; 553#factEXIT >#65#return; 564#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 571#factFINAL assume true; 581#factEXIT >#71#return; 565#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 579#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 575#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 576#L42-3 assume !(main_~k~0 <= main_~x~0); 580#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 578#L41-3 [2021-10-28 08:39:59,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:59,402 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 4 times [2021-10-28 08:39:59,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:59,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786602792] [2021-10-28 08:39:59,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:59,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:59,409 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:39:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:39:59,414 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:59,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:39:59,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1540584337, now seen corresponding path program 2 times [2021-10-28 08:39:59,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:39:59,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784366120] [2021-10-28 08:39:59,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:39:59,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:39:59,425 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:39:59,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112761757] [2021-10-28 08:39:59,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:39:59,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:39:59,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:39:59,443 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:39:59,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 08:39:59,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:39:59,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:39:59,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:39:59,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:39:59,848 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-28 08:39:59,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:39:59,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784366120] [2021-10-28 08:39:59,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:39:59,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112761757] [2021-10-28 08:39:59,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112761757] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:39:59,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:39:59,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-28 08:39:59,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490750360] [2021-10-28 08:39:59,851 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:39:59,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:39:59,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:39:59,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:39:59,853 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. cyclomatic complexity: 23 Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-28 08:40:00,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:00,340 INFO L93 Difference]: Finished difference Result 58 states and 97 transitions. [2021-10-28 08:40:00,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:40:00,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 97 transitions. [2021-10-28 08:40:00,346 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 50 [2021-10-28 08:40:00,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 97 transitions. [2021-10-28 08:40:00,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2021-10-28 08:40:00,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2021-10-28 08:40:00,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 97 transitions. [2021-10-28 08:40:00,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:40:00,356 INFO L681 BuchiCegarLoop]: Abstraction has 58 states and 97 transitions. [2021-10-28 08:40:00,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 97 transitions. [2021-10-28 08:40:00,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 38. [2021-10-28 08:40:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 13 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (22), 12 states have call predecessors, (22), 13 states have call successors, (22) [2021-10-28 08:40:00,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2021-10-28 08:40:00,365 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 62 transitions. [2021-10-28 08:40:00,365 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 62 transitions. [2021-10-28 08:40:00,365 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 08:40:00,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 62 transitions. [2021-10-28 08:40:00,367 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2021-10-28 08:40:00,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:00,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:00,374 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:40:00,375 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:00,375 INFO L791 eck$LassoCheckResult]: Stem: 779#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 780#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 789#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 790#L41-3 [2021-10-28 08:40:00,376 INFO L793 eck$LassoCheckResult]: Loop: 790#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 792#L42-3 assume !!(main_~k~0 <= main_~x~0); 797#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 760#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 761#factENTRY ~n := #in~n; 783#L25 assume !(~n <= 0); 767#L26 call #t~ret0 := fact(~n - 1);< 761#factENTRY ~n := #in~n; 783#L25 assume ~n <= 0;#res := 1; 781#factFINAL assume true; 782#factEXIT >#65#return; 775#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 785#factFINAL assume true; 762#factEXIT >#73#return; 772#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 761#factENTRY ~n := #in~n; 783#L25 assume ~n <= 0;#res := 1; 781#factFINAL assume true; 782#factEXIT >#75#return; 771#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 761#factENTRY ~n := #in~n; 783#L25 assume !(~n <= 0); 767#L26 call #t~ret0 := fact(~n - 1);< 761#factENTRY ~n := #in~n; 783#L25 assume ~n <= 0;#res := 1; 781#factFINAL assume true; 782#factEXIT >#65#return; 775#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 785#factFINAL assume true; 762#factEXIT >#77#return; 777#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 787#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 791#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 795#L42-3 assume !(main_~k~0 <= main_~x~0); 794#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 790#L41-3 [2021-10-28 08:40:00,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:00,377 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 5 times [2021-10-28 08:40:00,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:00,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099838219] [2021-10-28 08:40:00,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:00,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:00,405 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:00,409 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:00,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:00,410 INFO L85 PathProgramCache]: Analyzing trace with hash 646106509, now seen corresponding path program 1 times [2021-10-28 08:40:00,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:00,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108264846] [2021-10-28 08:40:00,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:00,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:00,423 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:00,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990213225] [2021-10-28 08:40:00,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:00,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:00,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:00,437 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:00,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 08:40:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:00,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:40:00,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-28 08:40:00,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:00,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108264846] [2021-10-28 08:40:00,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:40:00,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990213225] [2021-10-28 08:40:00,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990213225] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:00,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:40:00,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 08:40:00,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715433722] [2021-10-28 08:40:00,722 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:40:00,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:00,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:40:00,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:40:00,723 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. cyclomatic complexity: 26 Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 08:40:00,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:00,972 INFO L93 Difference]: Finished difference Result 52 states and 81 transitions. [2021-10-28 08:40:00,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:40:00,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 81 transitions. [2021-10-28 08:40:00,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2021-10-28 08:40:00,985 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 52 states and 81 transitions. [2021-10-28 08:40:00,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2021-10-28 08:40:00,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2021-10-28 08:40:00,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 81 transitions. [2021-10-28 08:40:00,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:40:00,991 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 81 transitions. [2021-10-28 08:40:00,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 81 transitions. [2021-10-28 08:40:00,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 38. [2021-10-28 08:40:00,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 13 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (21), 12 states have call predecessors, (21), 13 states have call successors, (21) [2021-10-28 08:40:00,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2021-10-28 08:40:00,999 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2021-10-28 08:40:00,999 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2021-10-28 08:40:00,999 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 08:40:00,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 61 transitions. [2021-10-28 08:40:01,000 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2021-10-28 08:40:01,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:01,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:01,001 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:40:01,001 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:01,001 INFO L791 eck$LassoCheckResult]: Stem: 985#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 986#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 995#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 996#L41-3 [2021-10-28 08:40:01,002 INFO L793 eck$LassoCheckResult]: Loop: 996#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 998#L42-3 assume !!(main_~k~0 <= main_~x~0); 1003#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 966#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 967#factENTRY ~n := #in~n; 989#L25 assume ~n <= 0;#res := 1; 987#factFINAL assume true; 988#factEXIT >#73#return; 979#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 967#factENTRY ~n := #in~n; 989#L25 assume ~n <= 0;#res := 1; 987#factFINAL assume true; 988#factEXIT >#75#return; 969#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 967#factENTRY ~n := #in~n; 989#L25 assume !(~n <= 0); 978#L26 call #t~ret0 := fact(~n - 1);< 967#factENTRY ~n := #in~n; 989#L25 assume ~n <= 0;#res := 1; 987#factFINAL assume true; 988#factEXIT >#65#return; 984#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 991#factFINAL assume true; 968#factEXIT >#77#return; 981#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 993#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 997#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1001#L42-3 assume !(main_~k~0 <= main_~x~0); 1000#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 996#L41-3 [2021-10-28 08:40:01,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:01,002 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 6 times [2021-10-28 08:40:01,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:01,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678120464] [2021-10-28 08:40:01,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:01,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:01,008 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:01,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:01,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:01,013 INFO L85 PathProgramCache]: Analyzing trace with hash 440366743, now seen corresponding path program 2 times [2021-10-28 08:40:01,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:01,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58739639] [2021-10-28 08:40:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:01,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:01,026 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:01,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674818614] [2021-10-28 08:40:01,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:40:01,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:01,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:01,041 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:01,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 08:40:01,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:40:01,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 08:40:01,137 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:01,159 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:01,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:01,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1834453461, now seen corresponding path program 1 times [2021-10-28 08:40:01,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:01,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729261879] [2021-10-28 08:40:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:01,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 08:40:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:01,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 08:40:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:01,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 08:40:01,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:01,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729261879] [2021-10-28 08:40:01,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-10-28 08:40:01,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837506228] [2021-10-28 08:40:01,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:01,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:01,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:01,231 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:01,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 08:40:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:01,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 08:40:01,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:01,477 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-28 08:40:01,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837506228] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:40:01,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:40:01,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:40:01,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124758342] [2021-10-28 08:40:02,003 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:02,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:02,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:02,003 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:02,003 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:02,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:02,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:02,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:02,004 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration6_Loop [2021-10-28 08:40:02,004 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:02,004 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:02,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,281 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:02,281 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:02,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:02,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:02,288 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:02,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:02,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:02,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 08:40:02,314 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:02,314 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8=0} Honda state: {ULTIMATE.start_main_#t~post8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:40:02,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:02,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:02,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:02,349 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:02,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 08:40:02,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:02,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:02,374 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:02,374 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:40:02,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-10-28 08:40:02,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:02,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:02,402 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:02,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 08:40:02,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:02,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:02,420 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:02,420 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:40:02,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:02,445 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:02,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:02,446 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:02,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 08:40:02,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:02,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:02,477 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:02,478 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret10=0} Honda state: {ULTIMATE.start_main_#t~ret10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:40:02,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:02,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:02,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:02,505 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:02,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 08:40:02,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:02,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:02,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:02,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:02,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:02,595 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:02,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:02,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:02,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 08:40:02,641 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:02,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-28 08:40:02,666 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:02,667 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:02,667 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:02,667 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:02,667 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:02,667 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:02,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:02,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:02,667 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration6_Loop [2021-10-28 08:40:02,667 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:02,667 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:02,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:02,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:03,169 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:03,170 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:03,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,176 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 08:40:03,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:03,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:03,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,197 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-10-28 08:40:03,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,227 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 08:40:03,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:03,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:03,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-10-28 08:40:03,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,293 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 08:40:03,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:03,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:03,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,343 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:03,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,371 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 08:40:03,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:03,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:03,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:03,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,409 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 08:40:03,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:03,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:03,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:03,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,469 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 08:40:03,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:03,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:03,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:03,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,509 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 08:40:03,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:03,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:03,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:03,581 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 08:40:03,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,600 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 08:40:03,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,617 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:03,618 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:03,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:03,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,647 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 08:40:03,650 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,659 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:03,660 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:03,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,662 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 08:40:03,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,687 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 08:40:03,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,698 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:03,700 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:03,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-28 08:40:03,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,728 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 08:40:03,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,740 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:03,741 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:03,741 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:03,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,772 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 08:40:03,775 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,786 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:03,793 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:03,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:03,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,871 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 08:40:03,880 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,890 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:03,891 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:03,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:03,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,927 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 08:40:03,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,937 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:03,938 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:03,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 08:40:03,961 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 08:40:03,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,962 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 08:40:03,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:03,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:03,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:03,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:03,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:03,973 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:03,974 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:03,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:03,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:03,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 08:40:03,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:03,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:03,997 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:03,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 08:40:03,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,007 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:04,008 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:04,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:04,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,032 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,062 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:04,063 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:04,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 08:40:04,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:04,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,124 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,139 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:04,139 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:04,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 08:40:04,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 08:40:04,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,177 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 08:40:04,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,189 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:04,197 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:04,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-28 08:40:04,231 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,232 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 08:40:04,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,243 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:04,244 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:04,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:04,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,315 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,336 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:04,337 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:04,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 08:40:04,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:04,385 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 08:40:04,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,388 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,403 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:04,405 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:04,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 08:40:04,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:04,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,469 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,483 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:04,484 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:04,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 08:40:04,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:04,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,543 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,557 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:04,559 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:04,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 08:40:04,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:04,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,629 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,643 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:04,645 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:04,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 08:40:04,655 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:04,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,701 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,717 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,718 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:04,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 08:40:04,728 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:04,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,747 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:04,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,797 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,812 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:04,813 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:04,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 08:40:04,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:04,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,870 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 08:40:04,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:04,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,885 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:04,887 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:04,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,889 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:04,913 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 08:40:04,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,915 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 08:40:04,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,932 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:04,932 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:04,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,932 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:04,933 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:04,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:04,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-28 08:40:04,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:04,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:04,965 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:04,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:04,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 08:40:04,976 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:04,976 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:04,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:04,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:04,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:04,976 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:04,977 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:04,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:04,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-28 08:40:05,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,007 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 08:40:05,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,027 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,027 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:05,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,028 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:05,029 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:05,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:05,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,063 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 08:40:05,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,084 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,084 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:05,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,084 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:05,085 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:05,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:05,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,113 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 08:40:05,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,126 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,127 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:05,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,127 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:05,137 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:05,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,179 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:05,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,221 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 08:40:05,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,233 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,233 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:05,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,234 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:05,236 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:05,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-10-28 08:40:05,289 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,290 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 08:40:05,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,300 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,300 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:05,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,301 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:40:05,301 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:40:05,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-28 08:40:05,328 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 08:40:05,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,329 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 08:40:05,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,340 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,340 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:40:05,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,340 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:05,341 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:05,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 08:40:05,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,371 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 08:40:05,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,381 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,382 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:40:05,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,382 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:05,383 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:05,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,386 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-28 08:40:05,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,409 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 08:40:05,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,419 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,419 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:40:05,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,419 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:05,420 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:05,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 08:40:05,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,445 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,458 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,458 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:40:05,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,458 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:05,460 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:05,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 08:40:05,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-28 08:40:05,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,488 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 08:40:05,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,499 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,499 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:40:05,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,500 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:05,508 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:05,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-28 08:40:05,561 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,562 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 08:40:05,563 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,571 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,571 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:40:05,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,572 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:05,573 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:05,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-28 08:40:05,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,650 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,667 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,668 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:40:05,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,668 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:05,670 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:05,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 08:40:05,691 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:05,728 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 08:40:05,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,732 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,744 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,744 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:05,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,745 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:05,747 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:05,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 08:40:05,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:05,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,811 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 08:40:05,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,825 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,825 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:05,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,826 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:05,827 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:05,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-28 08:40:05,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,856 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 08:40:05,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,867 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,868 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:05,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,868 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:05,869 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:05,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:05,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,925 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 08:40:05,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,939 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,939 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:05,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,940 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:05,942 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:05,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:05,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:05,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:05,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:05,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:05,979 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:05,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 08:40:05,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:05,991 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:05,991 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:05,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:05,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:05,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:05,992 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:06,007 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:06,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:06,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,092 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 08:40:06,111 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,111 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:06,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,112 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:06,113 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:06,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,143 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:06,183 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,184 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,200 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,200 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:06,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,201 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:40:06,202 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:40:06,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 08:40:06,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:06,260 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 08:40:06,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,262 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,264 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,274 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,274 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:06,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,275 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:06,276 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:06,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 08:40:06,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:06,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,329 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 08:40:06,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,342 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,342 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:06,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,342 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:06,343 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:06,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-10-28 08:40:06,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,371 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 08:40:06,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,382 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,382 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:06,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,382 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:06,383 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:06,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,411 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-10-28 08:40:06,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,439 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 08:40:06,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,450 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,451 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:06,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,451 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:06,452 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:06,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,464 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:06,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,491 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 08:40:06,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,502 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,503 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:06,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,503 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:06,508 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:06,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-28 08:40:06,543 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,544 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 08:40:06,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,555 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,555 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:06,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,556 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:06,556 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:06,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-28 08:40:06,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,585 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-28 08:40:06,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,595 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,595 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:40:06,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,596 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:40:06,596 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:40:06,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-10-28 08:40:06,623 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 08:40:06,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,624 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 08:40:06,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,636 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,636 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:06,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,636 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:40:06,638 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:06,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:06,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,667 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-28 08:40:06,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,679 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,679 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:06,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,679 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:40:06,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:06,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:06,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,710 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 08:40:06,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,721 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,721 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:06,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,722 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:40:06,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:06,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-28 08:40:06,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,761 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 08:40:06,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,772 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,772 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:06,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,773 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:40:06,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:06,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-28 08:40:06,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,803 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-28 08:40:06,815 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,815 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:06,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,816 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:40:06,826 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:06,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,855 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:06,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,906 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:06,920 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:06,920 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:06,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:06,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:06,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:06,921 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:40:06,922 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:06,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:06,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-28 08:40:06,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:06,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:06,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:06,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:06,989 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:06,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:07,003 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:40:07,003 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:40:07,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:07,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:07,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:07,004 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:40:07,006 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:07,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:07,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-28 08:40:07,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:07,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:07,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:07,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:40:07,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:40:07,065 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. cyclomatic complexity: 25 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 08:40:07,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:07,128 INFO L93 Difference]: Finished difference Result 40 states and 62 transitions. [2021-10-28 08:40:07,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:40:07,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 62 transitions. [2021-10-28 08:40:07,131 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2021-10-28 08:40:07,135 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 40 states and 62 transitions. [2021-10-28 08:40:07,135 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-10-28 08:40:07,138 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-28 08:40:07,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 62 transitions. [2021-10-28 08:40:07,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:40:07,139 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 62 transitions. [2021-10-28 08:40:07,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 62 transitions. [2021-10-28 08:40:07,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2021-10-28 08:40:07,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 11 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (19), 11 states have call predecessors, (19), 11 states have call successors, (19) [2021-10-28 08:40:07,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2021-10-28 08:40:07,156 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 56 transitions. [2021-10-28 08:40:07,156 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 56 transitions. [2021-10-28 08:40:07,156 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 08:40:07,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 56 transitions. [2021-10-28 08:40:07,158 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2021-10-28 08:40:07,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:07,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:07,159 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:40:07,160 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:07,160 INFO L791 eck$LassoCheckResult]: Stem: 1181#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 1182#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 1193#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 1194#L41-3 [2021-10-28 08:40:07,161 INFO L793 eck$LassoCheckResult]: Loop: 1194#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 1187#L42-3 assume !!(main_~k~0 <= main_~x~0); 1185#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1175#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 1166#factENTRY ~n := #in~n; 1184#L25 assume ~n <= 0;#res := 1; 1183#factFINAL assume true; 1168#factEXIT >#67#return; 1169#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 1166#factENTRY ~n := #in~n; 1184#L25 assume ~n <= 0;#res := 1; 1183#factFINAL assume true; 1168#factEXIT >#69#return; 1167#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 1166#factENTRY ~n := #in~n; 1184#L25 assume ~n <= 0;#res := 1; 1183#factFINAL assume true; 1168#factEXIT >#71#return; 1178#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 1195#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 1192#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1198#L42-3 assume !(main_~k~0 <= main_~x~0); 1196#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 1194#L41-3 [2021-10-28 08:40:07,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:07,161 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 7 times [2021-10-28 08:40:07,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:07,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398750231] [2021-10-28 08:40:07,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:07,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:07,174 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:07,179 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:07,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:07,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1214025381, now seen corresponding path program 1 times [2021-10-28 08:40:07,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:07,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626057918] [2021-10-28 08:40:07,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:07,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:07,201 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:07,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587000698] [2021-10-28 08:40:07,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:07,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:07,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:07,208 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:07,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-10-28 08:40:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:07,326 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:07,342 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:07,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:07,342 INFO L85 PathProgramCache]: Analyzing trace with hash -2062430919, now seen corresponding path program 1 times [2021-10-28 08:40:07,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:07,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495534688] [2021-10-28 08:40:07,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:07,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:07,352 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:07,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218467309] [2021-10-28 08:40:07,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:07,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:07,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:07,355 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:07,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-10-28 08:40:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:07,500 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:07,533 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:07,915 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:07,915 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:07,915 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:07,915 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:07,916 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:07,916 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:07,916 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:07,916 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:07,916 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration7_Loop [2021-10-28 08:40:07,916 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:07,916 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:07,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:07,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:07,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:07,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:07,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:07,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:07,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:07,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:08,073 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:08,073 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:08,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:08,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:08,082 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:08,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:08,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:08,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 08:40:08,107 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:08,108 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:40:08,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:08,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:08,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:08,149 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:08,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:08,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:08,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 08:40:08,175 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:08,176 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:40:08,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:08,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:08,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:08,218 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:08,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 08:40:08,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:08,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:08,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:08,232 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#res=1} Honda state: {ULTIMATE.start_binomialCoefficient_#res=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:40:08,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:08,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:08,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:08,257 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:08,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 08:40:08,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:08,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:08,269 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:08,269 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:40:08,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:08,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:08,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:08,295 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:08,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 08:40:08,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:08,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:08,306 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:08,306 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret1=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:40:08,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-10-28 08:40:08,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:08,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:08,332 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:08,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 08:40:08,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:08,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:08,343 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:08,344 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret9=0} Honda state: {ULTIMATE.start_main_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 08:40:08,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:08,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:08,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:08,369 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:08,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 08:40:08,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:08,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:08,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:08,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:08,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:08,406 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:08,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-28 08:40:08,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:08,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:10,075 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:10,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2021-10-28 08:40:10,080 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:10,080 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:10,080 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:10,080 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:10,080 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:10,080 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:10,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:10,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:10,081 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration7_Loop [2021-10-28 08:40:10,081 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:10,081 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:10,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:10,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:10,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:10,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:10,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:10,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:10,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:10,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:10,213 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:10,213 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:10,213 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:10,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:10,215 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:10,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-28 08:40:10,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:40:10,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:10,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:10,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:10,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:10,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:10,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:10,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:10,236 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:10,239 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:40:10,239 INFO L444 ModelExtractionUtils]: 6 out of 9 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:40:10,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:10,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:10,241 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:10,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-28 08:40:10,242 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:10,242 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:10,242 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:10,242 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = -2*ULTIMATE.start_main_~n~0 + 1 Supporting invariants [] [2021-10-28 08:40:10,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-10-28 08:40:10,265 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:10,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:10,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:10,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:10,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 08:40:10,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:10,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:10,616 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 08:40:10,617 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-28 08:40:10,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 56 transitions. cyclomatic complexity: 22 Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 08:40:10,916 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 56 transitions. cyclomatic complexity: 22. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Result 132 states and 203 transitions. Complement of second has 26 states. [2021-10-28 08:40:10,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2021-10-28 08:40:10,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 08:40:10,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 70 transitions. [2021-10-28 08:40:10,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 3 letters. Loop has 23 letters. [2021-10-28 08:40:10,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:10,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 26 letters. Loop has 23 letters. [2021-10-28 08:40:10,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:10,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 3 letters. Loop has 46 letters. [2021-10-28 08:40:10,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:10,921 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 203 transitions. [2021-10-28 08:40:10,924 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2021-10-28 08:40:10,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 131 states and 202 transitions. [2021-10-28 08:40:10,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2021-10-28 08:40:10,929 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2021-10-28 08:40:10,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 202 transitions. [2021-10-28 08:40:10,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:10,929 INFO L681 BuchiCegarLoop]: Abstraction has 131 states and 202 transitions. [2021-10-28 08:40:10,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 202 transitions. [2021-10-28 08:40:10,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 126. [2021-10-28 08:40:10,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 78 states have (on average 1.1923076923076923) internal successors, (93), 81 states have internal predecessors, (93), 38 states have call successors, (38), 6 states have call predecessors, (38), 10 states have return successors, (62), 38 states have call predecessors, (62), 38 states have call successors, (62) [2021-10-28 08:40:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 193 transitions. [2021-10-28 08:40:10,954 INFO L704 BuchiCegarLoop]: Abstraction has 126 states and 193 transitions. [2021-10-28 08:40:10,954 INFO L587 BuchiCegarLoop]: Abstraction has 126 states and 193 transitions. [2021-10-28 08:40:10,954 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 08:40:10,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 193 transitions. [2021-10-28 08:40:10,959 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2021-10-28 08:40:10,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:10,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:10,967 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 08:40:10,967 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [11, 11, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2021-10-28 08:40:10,968 INFO L791 eck$LassoCheckResult]: Stem: 1485#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 1486#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 1512#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 1513#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 1497#L42-3 [2021-10-28 08:40:10,969 INFO L793 eck$LassoCheckResult]: Loop: 1497#L42-3 assume !!(main_~k~0 <= main_~x~0); 1495#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1487#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#67#return; 1543#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume ~n <= 0;#res := 1; 1550#factFINAL assume true; 1548#factEXIT >#69#return; 1482#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#71#return; 1546#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 1555#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 1554#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1553#L42-3 assume !!(main_~k~0 <= main_~x~0); 1529#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1544#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#67#return; 1545#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#69#return; 1542#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#71#return; 1533#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 1531#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 1530#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1528#L42-3 assume !(main_~k~0 <= main_~x~0); 1526#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 1517#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 1497#L42-3 [2021-10-28 08:40:10,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:10,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 1 times [2021-10-28 08:40:10,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:10,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445889162] [2021-10-28 08:40:10,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:10,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:10,990 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:10,994 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:10,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:10,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1979006875, now seen corresponding path program 3 times [2021-10-28 08:40:10,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:10,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612392357] [2021-10-28 08:40:10,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:10,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:11,008 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:11,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326958218] [2021-10-28 08:40:11,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:40:11,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:11,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:11,011 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:11,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-10-28 08:40:11,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 08:40:11,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:40:11,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:40:11,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-10-28 08:40:11,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:11,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612392357] [2021-10-28 08:40:11,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:40:11,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326958218] [2021-10-28 08:40:11,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326958218] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:40:11,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:40:11,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:40:11,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623849314] [2021-10-28 08:40:11,398 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:40:11,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:11,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:40:11,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:40:11,399 INFO L87 Difference]: Start difference. First operand 126 states and 193 transitions. cyclomatic complexity: 72 Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 08:40:11,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:11,487 INFO L93 Difference]: Finished difference Result 168 states and 259 transitions. [2021-10-28 08:40:11,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:40:11,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 168 states and 259 transitions. [2021-10-28 08:40:11,492 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 58 [2021-10-28 08:40:11,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 168 states to 162 states and 253 transitions. [2021-10-28 08:40:11,497 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2021-10-28 08:40:11,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2021-10-28 08:40:11,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 162 states and 253 transitions. [2021-10-28 08:40:11,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:11,498 INFO L681 BuchiCegarLoop]: Abstraction has 162 states and 253 transitions. [2021-10-28 08:40:11,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states and 253 transitions. [2021-10-28 08:40:11,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 122. [2021-10-28 08:40:11,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 81 states have internal predecessors, (91), 36 states have call successors, (36), 6 states have call predecessors, (36), 10 states have return successors, (58), 34 states have call predecessors, (58), 36 states have call successors, (58) [2021-10-28 08:40:11,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 185 transitions. [2021-10-28 08:40:11,514 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 185 transitions. [2021-10-28 08:40:11,514 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 185 transitions. [2021-10-28 08:40:11,514 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 08:40:11,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 185 transitions. [2021-10-28 08:40:11,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 37 [2021-10-28 08:40:11,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:11,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:11,517 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 08:40:11,518 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [11, 11, 6, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:11,518 INFO L791 eck$LassoCheckResult]: Stem: 2013#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 2014#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 2044#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 2045#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2049#L42-3 [2021-10-28 08:40:11,518 INFO L793 eck$LassoCheckResult]: Loop: 2049#L42-3 assume !!(main_~k~0 <= main_~x~0); 2078#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1999#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#67#return; 1997#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume ~n <= 0;#res := 1; 2076#factFINAL assume true; 1991#factEXIT >#69#return; 1996#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#71#return; 2002#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2108#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 2042#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2027#L42-3 assume !!(main_~k~0 <= main_~x~0); 2028#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1994#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#73#return; 1995#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#75#return; 1992#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#77#return; 2065#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2063#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 2060#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2059#L42-3 assume !(main_~k~0 <= main_~x~0); 2056#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 2048#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2049#L42-3 [2021-10-28 08:40:11,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:11,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 2 times [2021-10-28 08:40:11,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:11,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150602437] [2021-10-28 08:40:11,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:11,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:11,525 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:11,529 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:11,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:11,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1284734623, now seen corresponding path program 1 times [2021-10-28 08:40:11,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:11,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312022006] [2021-10-28 08:40:11,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:11,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:11,538 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:11,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315798157] [2021-10-28 08:40:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:11,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:11,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:11,543 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:11,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-28 08:40:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:11,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 08:40:11,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:12,111 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 142 proven. 18 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-10-28 08:40:12,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:12,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312022006] [2021-10-28 08:40:12,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:40:12,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315798157] [2021-10-28 08:40:12,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315798157] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:12,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:40:12,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-10-28 08:40:12,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304320830] [2021-10-28 08:40:12,113 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:40:12,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:12,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:40:12,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:40:12,114 INFO L87 Difference]: Start difference. First operand 122 states and 185 transitions. cyclomatic complexity: 68 Second operand has 10 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 6 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-28 08:40:12,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:12,507 INFO L93 Difference]: Finished difference Result 185 states and 292 transitions. [2021-10-28 08:40:12,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:40:12,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 185 states and 292 transitions. [2021-10-28 08:40:12,512 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 67 [2021-10-28 08:40:12,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 185 states to 185 states and 292 transitions. [2021-10-28 08:40:12,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2021-10-28 08:40:12,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2021-10-28 08:40:12,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 185 states and 292 transitions. [2021-10-28 08:40:12,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:12,518 INFO L681 BuchiCegarLoop]: Abstraction has 185 states and 292 transitions. [2021-10-28 08:40:12,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states and 292 transitions. [2021-10-28 08:40:12,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 152. [2021-10-28 08:40:12,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 96 states have (on average 1.15625) internal successors, (111), 101 states have internal predecessors, (111), 46 states have call successors, (46), 6 states have call predecessors, (46), 10 states have return successors, (78), 44 states have call predecessors, (78), 46 states have call successors, (78) [2021-10-28 08:40:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 235 transitions. [2021-10-28 08:40:12,545 INFO L704 BuchiCegarLoop]: Abstraction has 152 states and 235 transitions. [2021-10-28 08:40:12,545 INFO L587 BuchiCegarLoop]: Abstraction has 152 states and 235 transitions. [2021-10-28 08:40:12,545 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 08:40:12,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 235 transitions. [2021-10-28 08:40:12,547 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 52 [2021-10-28 08:40:12,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:12,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:12,551 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 08:40:12,555 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [17, 17, 9, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:12,555 INFO L791 eck$LassoCheckResult]: Stem: 2555#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 2556#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 2585#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 2586#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2592#L42-3 [2021-10-28 08:40:12,556 INFO L793 eck$LassoCheckResult]: Loop: 2592#L42-3 assume !!(main_~k~0 <= main_~x~0); 2639#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 2624#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#67#return; 2571#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume ~n <= 0;#res := 1; 2638#factFINAL assume true; 2622#factEXIT >#69#return; 2625#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#71#return; 2627#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2680#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 2583#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2569#L42-3 assume !!(main_~k~0 <= main_~x~0); 2565#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 2566#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#67#return; 2623#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#69#return; 2553#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#71#return; 2626#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2686#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 2636#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2634#L42-3 assume !!(main_~k~0 <= main_~x~0); 2605#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 2535#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#73#return; 2573#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#75#return; 2595#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#77#return; 2575#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2576#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 2606#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2604#L42-3 assume !(main_~k~0 <= main_~x~0); 2601#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 2591#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2592#L42-3 [2021-10-28 08:40:12,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:12,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 3 times [2021-10-28 08:40:12,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:12,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341893093] [2021-10-28 08:40:12,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:12,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:12,566 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:12,579 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:12,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:12,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1420952905, now seen corresponding path program 2 times [2021-10-28 08:40:12,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:12,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765978613] [2021-10-28 08:40:12,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:12,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:12,591 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:12,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609797199] [2021-10-28 08:40:12,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:40:12,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:12,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:12,594 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:12,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2021-10-28 08:40:12,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:40:12,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:40:12,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 08:40:12,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 355 proven. 48 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-10-28 08:40:13,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:13,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765978613] [2021-10-28 08:40:13,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:40:13,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609797199] [2021-10-28 08:40:13,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609797199] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:13,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:40:13,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-10-28 08:40:13,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171284333] [2021-10-28 08:40:13,347 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:40:13,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:13,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 08:40:13,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:40:13,348 INFO L87 Difference]: Start difference. First operand 152 states and 235 transitions. cyclomatic complexity: 88 Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 11 states have internal predecessors, (37), 6 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2021-10-28 08:40:13,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:13,819 INFO L93 Difference]: Finished difference Result 285 states and 466 transitions. [2021-10-28 08:40:13,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:40:13,822 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 285 states and 466 transitions. [2021-10-28 08:40:13,828 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 96 [2021-10-28 08:40:13,840 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 285 states to 285 states and 466 transitions. [2021-10-28 08:40:13,840 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 143 [2021-10-28 08:40:13,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 143 [2021-10-28 08:40:13,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 466 transitions. [2021-10-28 08:40:13,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:13,842 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 466 transitions. [2021-10-28 08:40:13,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 466 transitions. [2021-10-28 08:40:13,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 238. [2021-10-28 08:40:13,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 154 states have (on average 1.1233766233766234) internal successors, (173), 157 states have internal predecessors, (173), 68 states have call successors, (68), 10 states have call predecessors, (68), 16 states have return successors, (170), 70 states have call predecessors, (170), 68 states have call successors, (170) [2021-10-28 08:40:13,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 411 transitions. [2021-10-28 08:40:13,905 INFO L704 BuchiCegarLoop]: Abstraction has 238 states and 411 transitions. [2021-10-28 08:40:13,905 INFO L587 BuchiCegarLoop]: Abstraction has 238 states and 411 transitions. [2021-10-28 08:40:13,905 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 08:40:13,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 238 states and 411 transitions. [2021-10-28 08:40:13,908 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 83 [2021-10-28 08:40:13,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:13,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:13,913 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 08:40:13,914 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [18, 18, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:13,914 INFO L791 eck$LassoCheckResult]: Stem: 3373#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 3374#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 3404#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 3405#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 3407#L42-3 [2021-10-28 08:40:13,915 INFO L793 eck$LassoCheckResult]: Loop: 3407#L42-3 assume !!(main_~k~0 <= main_~x~0); 3484#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 3371#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3470#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3469#factFINAL assume true; 3427#factEXIT >#67#return; 3389#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume ~n <= 0;#res := 1; 3442#factFINAL assume true; 3440#factEXIT >#69#return; 3435#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume !(~n <= 0); 3337#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3341#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3480#factFINAL assume true; 3336#factEXIT >#65#return; 3342#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3445#factFINAL assume true; 3446#factEXIT >#71#return; 3468#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 3476#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 3475#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 3474#L42-3 assume !!(main_~k~0 <= main_~x~0); 3473#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 3434#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3470#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3469#factFINAL assume true; 3427#factEXIT >#67#return; 3433#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3470#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3469#factFINAL assume true; 3427#factEXIT >#69#return; 3430#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume !(~n <= 0); 3337#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3341#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3480#factFINAL assume true; 3336#factEXIT >#65#return; 3342#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3445#factFINAL assume true; 3446#factEXIT >#71#return; 3467#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 3466#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 3465#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 3464#L42-3 assume !!(main_~k~0 <= main_~x~0); 3463#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 3332#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3470#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3469#factFINAL assume true; 3427#factEXIT >#73#return; 3391#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume ~n <= 0;#res := 1; 3442#factFINAL assume true; 3440#factEXIT >#75#return; 3410#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3444#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3397#factENTRY ~n := #in~n; 3386#L25 assume ~n <= 0;#res := 1; 3387#factFINAL assume true; 3471#factEXIT >#65#return; 3470#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3469#factFINAL assume true; 3427#factEXIT >#77#return; 3393#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 3394#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 3421#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 3419#L42-3 assume !(main_~k~0 <= main_~x~0); 3416#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 3406#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 3407#L42-3 [2021-10-28 08:40:13,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:13,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 4 times [2021-10-28 08:40:13,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:13,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217159836] [2021-10-28 08:40:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:13,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:13,927 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:13,935 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:13,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:13,936 INFO L85 PathProgramCache]: Analyzing trace with hash 191172013, now seen corresponding path program 3 times [2021-10-28 08:40:13,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:13,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935903220] [2021-10-28 08:40:13,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:13,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:13,954 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:13,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757095866] [2021-10-28 08:40:13,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:40:13,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:13,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:13,956 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:13,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-10-28 08:40:14,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-28 08:40:14,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:40:14,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 08:40:14,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 125 proven. 63 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-10-28 08:40:14,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:14,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935903220] [2021-10-28 08:40:14,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:40:14,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757095866] [2021-10-28 08:40:14,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757095866] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:14,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:40:14,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-10-28 08:40:14,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988571393] [2021-10-28 08:40:14,774 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:40:14,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:14,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:40:14,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:40:14,775 INFO L87 Difference]: Start difference. First operand 238 states and 411 transitions. cyclomatic complexity: 179 Second operand has 14 states, 11 states have (on average 2.909090909090909) internal successors, (32), 14 states have internal predecessors, (32), 7 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-28 08:40:15,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:15,792 INFO L93 Difference]: Finished difference Result 604 states and 1105 transitions. [2021-10-28 08:40:15,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 08:40:15,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 604 states and 1105 transitions. [2021-10-28 08:40:15,807 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 229 [2021-10-28 08:40:15,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 604 states to 598 states and 1099 transitions. [2021-10-28 08:40:15,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 298 [2021-10-28 08:40:15,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 298 [2021-10-28 08:40:15,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 598 states and 1099 transitions. [2021-10-28 08:40:15,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:15,845 INFO L681 BuchiCegarLoop]: Abstraction has 598 states and 1099 transitions. [2021-10-28 08:40:15,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states and 1099 transitions. [2021-10-28 08:40:15,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 279. [2021-10-28 08:40:15,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 178 states have (on average 1.1292134831460674) internal successors, (201), 179 states have internal predecessors, (201), 85 states have call successors, (85), 10 states have call predecessors, (85), 16 states have return successors, (213), 89 states have call predecessors, (213), 85 states have call successors, (213) [2021-10-28 08:40:15,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 499 transitions. [2021-10-28 08:40:15,884 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 499 transitions. [2021-10-28 08:40:15,884 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 499 transitions. [2021-10-28 08:40:15,884 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 08:40:15,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 499 transitions. [2021-10-28 08:40:15,888 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2021-10-28 08:40:15,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:15,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:15,890 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 08:40:15,890 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [17, 17, 9, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:40:15,890 INFO L791 eck$LassoCheckResult]: Stem: 4619#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 4620#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 4652#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 4653#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 4655#L42-3 [2021-10-28 08:40:15,891 INFO L793 eck$LassoCheckResult]: Loop: 4655#L42-3 assume !!(main_~k~0 <= main_~x~0); 4711#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 4679#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#67#return; 4670#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 4687#factENTRY ~n := #in~n; 4707#L25 assume ~n <= 0;#res := 1; 4694#factFINAL assume true; 4690#factEXIT >#69#return; 4669#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#71#return; 4693#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 4825#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 4822#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 4821#L42-3 assume !!(main_~k~0 <= main_~x~0); 4820#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 4668#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#67#return; 4671#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#69#return; 4684#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 4695#factENTRY ~n := #in~n; 4696#L25 assume ~n <= 0;#res := 1; 4694#factFINAL assume true; 4690#factEXIT >#71#return; 4692#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 4818#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 4797#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 4795#L42-3 assume !!(main_~k~0 <= main_~x~0); 4663#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 4673#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume !(~n <= 0); 4701#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4703#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4710#factFINAL assume true; 4705#factEXIT >#65#return; 4699#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4697#factFINAL assume true; 4667#factEXIT >#73#return; 4680#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#75#return; 4677#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 4687#factENTRY ~n := #in~n; 4707#L25 assume !(~n <= 0); 4702#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4708#L25 assume ~n <= 0;#res := 1; 4706#factFINAL assume true; 4700#factEXIT >#65#return; 4698#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4688#factFINAL assume true; 4689#factEXIT >#77#return; 4666#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 4665#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 4664#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 4662#L42-3 assume !(main_~k~0 <= main_~x~0); 4658#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 4654#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 4655#L42-3 [2021-10-28 08:40:15,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:15,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 5 times [2021-10-28 08:40:15,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:15,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175042104] [2021-10-28 08:40:15,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:15,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:15,899 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:15,903 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:15,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:15,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1578538653, now seen corresponding path program 4 times [2021-10-28 08:40:15,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:15,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290869878] [2021-10-28 08:40:15,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:15,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:15,913 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:15,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307749606] [2021-10-28 08:40:15,914 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:40:15,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:15,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:15,916 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:15,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2021-10-28 08:40:16,246 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:40:16,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 08:40:16,246 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:16,318 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:16,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:16,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1613108234, now seen corresponding path program 1 times [2021-10-28 08:40:16,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:16,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741007784] [2021-10-28 08:40:16,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:16,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:16,329 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:40:16,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823122500] [2021-10-28 08:40:16,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:16,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:16,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:16,347 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:16,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2021-10-28 08:40:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:16,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:40:16,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:17,013 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 143 proven. 1 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-10-28 08:40:17,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:17,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741007784] [2021-10-28 08:40:17,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 08:40:17,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823122500] [2021-10-28 08:40:17,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823122500] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:17,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:40:17,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 08:40:17,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281772370] [2021-10-28 08:40:55,130 WARN L207 SmtUtils]: Spent 37.12 s on a formula simplification. DAG size of input: 192 DAG size of output: 1 [2021-10-28 08:40:55,134 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: loopTF is false but loop analysis said: feasible at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.computeLoopTF(LassoCheck.java:343) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:833) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-28 08:40:55,138 INFO L168 Benchmark]: Toolchain (without parser) took 59328.18 ms. Allocated memory was 92.3 MB in the beginning and 161.5 MB in the end (delta: 69.2 MB). Free memory was 50.6 MB in the beginning and 62.5 MB in the end (delta: -11.9 MB). Peak memory consumption was 75.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:55,139 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory was 66.5 MB in the beginning and 66.5 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:55,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.24 ms. Allocated memory is still 92.3 MB. Free memory was 50.4 MB in the beginning and 67.7 MB in the end (delta: -17.4 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:55,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.21 ms. Allocated memory is still 92.3 MB. Free memory was 67.7 MB in the beginning and 66.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:55,141 INFO L168 Benchmark]: Boogie Preprocessor took 38.16 ms. Allocated memory is still 92.3 MB. Free memory was 66.2 MB in the beginning and 65.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:55,141 INFO L168 Benchmark]: RCFGBuilder took 377.17 ms. Allocated memory is still 92.3 MB. Free memory was 65.2 MB in the beginning and 55.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:55,141 INFO L168 Benchmark]: BuchiAutomizer took 58499.09 ms. Allocated memory was 92.3 MB in the beginning and 161.5 MB in the end (delta: 69.2 MB). Free memory was 55.5 MB in the beginning and 62.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:55,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory was 66.5 MB in the beginning and 66.5 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 358.24 ms. Allocated memory is still 92.3 MB. Free memory was 50.4 MB in the beginning and 67.7 MB in the end (delta: -17.4 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.21 ms. Allocated memory is still 92.3 MB. Free memory was 67.7 MB in the beginning and 66.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.16 ms. Allocated memory is still 92.3 MB. Free memory was 66.2 MB in the beginning and 65.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 377.17 ms. Allocated memory is still 92.3 MB. Free memory was 65.2 MB in the beginning and 55.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 58499.09 ms. Allocated memory was 92.3 MB in the beginning and 161.5 MB in the end (delta: 69.2 MB). Free memory was 55.5 MB in the beginning and 62.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: loopTF is false but loop analysis said: feasible de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: loopTF is false but loop analysis said: feasible: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.computeLoopTF(LassoCheck.java:343) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-28 08:40:55,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:55,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2021-10-28 08:40:55,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:55,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2021-10-28 08:40:55,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2021-10-28 08:40:56,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2021-10-28 08:40:56,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:56,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:56,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-10-28 08:40:57,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:57,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-28 08:40:57,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-28 08:40:57,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-28 08:40:57,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-28 08:40:57,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25dcb3a-a658-430e-8edb-de5c3c9388f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...