./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/rec_counter1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/rec_counter1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8 --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 de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:08:36,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:08:36,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:08:36,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:08:36,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:08:36,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:08:36,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:08:36,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:08:36,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:08:36,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:08:36,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:08:36,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:08:36,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:08:36,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:08:36,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:08:36,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:08:36,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:08:36,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:08:36,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:08:36,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:08:36,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:08:36,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:08:36,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:08:36,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:08:36,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:08:36,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:08:36,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:08:36,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:08:36,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:08:36,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:08:36,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:08:36,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:08:36,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:08:36,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:08:36,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:08:36,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:08:36,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:08:36,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:08:36,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:08:36,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:08:36,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:08:36,110 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 11:08:36,142 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:08:36,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:08:36,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:08:36,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:08:36,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:08:36,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:08:36,148 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:08:36,149 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:08:36,149 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:08:36,149 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:08:36,151 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:08:36,151 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:08:36,151 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:08:36,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:08:36,152 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:08:36,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:08:36,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:08:36,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:08:36,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:08:36,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:08:36,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:08:36,155 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:08:36,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:08:36,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:08:36,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:08:36,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:08:36,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:08:36,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:08:36,160 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:08:36,160 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_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b [2022-11-16 11:08:36,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:08:36,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:08:36,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:08:36,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:08:36,609 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:08:36,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-numeric/rec_counter1.c [2022-11-16 11:08:36,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/data/b712ef3f1/2209d3ad8736424289b2dce6ab78a184/FLAGe905d717a [2022-11-16 11:08:37,294 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:08:37,295 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/sv-benchmarks/c/termination-numeric/rec_counter1.c [2022-11-16 11:08:37,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/data/b712ef3f1/2209d3ad8736424289b2dce6ab78a184/FLAGe905d717a [2022-11-16 11:08:37,671 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/data/b712ef3f1/2209d3ad8736424289b2dce6ab78a184 [2022-11-16 11:08:37,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:08:37,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:08:37,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:08:37,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:08:37,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:08:37,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:08:37" (1/1) ... [2022-11-16 11:08:37,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3348c2e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:37, skipping insertion in model container [2022-11-16 11:08:37,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:08:37" (1/1) ... [2022-11-16 11:08:37,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:08:37,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:08:37,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:08:37,989 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:08:38,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:08:38,025 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:08:38,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38 WrapperNode [2022-11-16 11:08:38,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:08:38,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:08:38,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:08:38,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:08:38,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (1/1) ... [2022-11-16 11:08:38,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (1/1) ... [2022-11-16 11:08:38,068 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2022-11-16 11:08:38,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:08:38,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:08:38,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:08:38,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:08:38,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (1/1) ... [2022-11-16 11:08:38,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (1/1) ... [2022-11-16 11:08:38,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (1/1) ... [2022-11-16 11:08:38,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (1/1) ... [2022-11-16 11:08:38,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (1/1) ... [2022-11-16 11:08:38,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (1/1) ... [2022-11-16 11:08:38,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (1/1) ... [2022-11-16 11:08:38,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (1/1) ... [2022-11-16 11:08:38,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:08:38,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:08:38,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:08:38,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:08:38,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (1/1) ... [2022-11-16 11:08:38,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:38,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:38,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:38,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:08:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2022-11-16 11:08:38,192 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2022-11-16 11:08:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:08:38,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:08:38,275 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:08:38,278 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:08:38,423 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:08:38,436 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:08:38,436 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:08:38,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:38 BoogieIcfgContainer [2022-11-16 11:08:38,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:08:38,441 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:08:38,441 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:08:38,448 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:08:38,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:08:38,449 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:08:37" (1/3) ... [2022-11-16 11:08:38,451 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c515f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:08:38, skipping insertion in model container [2022-11-16 11:08:38,451 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:08:38,451 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:38" (2/3) ... [2022-11-16 11:08:38,452 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c515f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:08:38, skipping insertion in model container [2022-11-16 11:08:38,452 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:08:38,452 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:38" (3/3) ... [2022-11-16 11:08:38,454 INFO L332 chiAutomizerObserver]: Analyzing ICFG rec_counter1.c [2022-11-16 11:08:38,568 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:08:38,568 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:08:38,569 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:08:38,569 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:08:38,569 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:08:38,569 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:08:38,569 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:08:38,570 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:08:38,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:08:38,622 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-11-16 11:08:38,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:08:38,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:08:38,634 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:08:38,634 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:08:38,635 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:08:38,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:08:38,639 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-11-16 11:08:38,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:08:38,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:08:38,640 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:08:38,640 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:08:38,650 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 8#L18true assume !(main_~i~0#1 <= 0); 15#L20true call main_#t~ret3#1 := rec(main_~i~0#1);< 11#recENTRYtrue [2022-11-16 11:08:38,651 INFO L750 eck$LassoCheckResult]: Loop: 11#recENTRYtrue ~a := #in~a; 5#L5true assume !(0 == ~a); 10#L8true call #t~ret0 := rec(~a - 1);< 11#recENTRYtrue [2022-11-16 11:08:38,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:38,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1572139, now seen corresponding path program 1 times [2022-11-16 11:08:38,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:38,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037121574] [2022-11-16 11:08:38,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:38,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:38,779 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:08:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:38,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:08:38,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:38,815 INFO L85 PathProgramCache]: Analyzing trace with hash 29949, now seen corresponding path program 1 times [2022-11-16 11:08:38,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:38,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958597836] [2022-11-16 11:08:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:38,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:38,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:08:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:38,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:08:38,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:38,853 INFO L85 PathProgramCache]: Analyzing trace with hash -409047149, now seen corresponding path program 1 times [2022-11-16 11:08:38,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:38,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577256712] [2022-11-16 11:08:38,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:38,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:38,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:08:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:38,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:08:39,035 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:08:39,051 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:08:39,052 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:08:39,052 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:08:39,052 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:08:39,053 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,053 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:08:39,053 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:08:39,053 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Loop [2022-11-16 11:08:39,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:08:39,054 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:08:39,080 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,096 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,101 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,113 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,119 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,129 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,139 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,216 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:08:39,216 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:08:39,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:08:39,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,250 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,250 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:39,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-16 11:08:39,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,257 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:08:39,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,315 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,315 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:39,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-11-16 11:08:39,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,328 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:08:39,359 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,360 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:39,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-16 11:08:39,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,366 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:08:39,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,387 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,388 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:39,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-16 11:08:39,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,402 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:08:39,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,405 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,417 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,417 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:39,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:39,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,423 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:08:39,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:39,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,482 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:08:39,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:08:39,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,525 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,525 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#in~a=-4} Honda state: {rec_#in~a=-4} Generalized eigenvectors: [{rec_#in~a=-1}, {rec_#in~a=0}, {rec_#in~a=0}] Lambdas: [1, 7, 0] Nus: [1, 1] [2022-11-16 11:08:39,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-16 11:08:39,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,536 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:08:39,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,569 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,569 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:39,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-16 11:08:39,606 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:08:39,606 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:08:39,606 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:08:39,606 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:08:39,607 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:08:39,607 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,607 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:08:39,607 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:08:39,607 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2022-11-16 11:08:39,607 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:08:39,608 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:08:39,609 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,613 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,616 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,619 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,622 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,626 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,629 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,633 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,636 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,639 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,643 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,646 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:39,730 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:08:39,730 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:08:39,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,747 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:08:39,783 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,784 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:39,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:39,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,794 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 11:08:39,843 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,844 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:39,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:39,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,855 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 11:08:39,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,884 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,884 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:39,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:39,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,897 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 11:08:39,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,939 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,939 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~1#1=0} Honda state: {ULTIMATE.start_main_~res~1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:39,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:39,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,949 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 11:08:39,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,966 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:39,966 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:39,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-16 11:08:39,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:39,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:39,978 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:39,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:39,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:39,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 11:08:40,001 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:40,002 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret4#1=0} Honda state: {ULTIMATE.start_#t~ret4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:40,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-11-16 11:08:40,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,011 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 11:08:40,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:40,015 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:40,029 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:40,029 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:40,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,034 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 11:08:40,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:40,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:40,058 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:40,058 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret3#1=0} Honda state: {ULTIMATE.start_main_#t~ret3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:40,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,063 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-16 11:08:40,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:40,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:40,108 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:40,108 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:40,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,123 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-16 11:08:40,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:40,125 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:40,143 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:40,144 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:40,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,149 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:40,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:40,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-16 11:08:40,168 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:08:40,168 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:08:40,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,174 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-16 11:08:40,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:40,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:40,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,229 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:08:40,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:40,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-16 11:08:40,280 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:08:40,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,291 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:08:40,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:08:40,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:08:40,291 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:08:40,291 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:08:40,291 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:08:40,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:08:40,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2022-11-16 11:08:40,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:08:40,292 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:08:40,294 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,302 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,311 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,317 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,322 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,325 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,329 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,332 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,336 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,357 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,361 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:40,439 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:08:40,445 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:08:40,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,448 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,456 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 [2022-11-16 11:08:40,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:40,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:40,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-16 11:08:40,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:40,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:40,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:40,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:40,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:40,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:08:40,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,493 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-16 11:08:40,496 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 [2022-11-16 11:08:40,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:40,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:40,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:40,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:40,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:40,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:40,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:40,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:08:40,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-11-16 11:08:40,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,519 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-16 11:08:40,525 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 [2022-11-16 11:08:40,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:40,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:40,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:40,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:40,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:40,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:40,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:40,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:08:40,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,556 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,564 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 [2022-11-16 11:08:40,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-16 11:08:40,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:40,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:40,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:40,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:40,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:40,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:40,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:40,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:08:40,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-11-16 11:08:40,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,585 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-16 11:08:40,590 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 [2022-11-16 11:08:40,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:40,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:40,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:40,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:40,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:40,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:40,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:40,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:08:40,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,617 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-16 11:08:40,622 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 [2022-11-16 11:08:40,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:40,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:40,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:40,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:40,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:40,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:40,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:40,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:08:40,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-16 11:08:40,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,651 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-16 11:08:40,656 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 [2022-11-16 11:08:40,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:40,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:40,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:40,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:40,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:40,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:40,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:40,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:08:40,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,687 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-16 11:08:40,691 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 [2022-11-16 11:08:40,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:40,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:40,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:40,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:40,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:40,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:40,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:40,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:08:40,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,716 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-16 11:08:40,720 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 [2022-11-16 11:08:40,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:40,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:40,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:40,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:40,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:40,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:40,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:40,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:08:40,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,738 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-16 11:08:40,742 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 [2022-11-16 11:08:40,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:40,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:40,754 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-16 11:08:40,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:40,767 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-16 11:08:40,767 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-16 11:08:40,807 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:08:40,839 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-11-16 11:08:40,839 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. [2022-11-16 11:08:40,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:40,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:40,842 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:40,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-16 11:08:40,846 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:08:40,890 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-11-16 11:08:40,890 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:08:40,891 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~a) = 1*rec_#in~a Supporting invariants [1*rec_#in~a >= 0] [2022-11-16 11:08:40,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:40,911 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-11-16 11:08:40,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:40,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:08:40,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:41,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 11:08:41,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:41,176 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-16 11:08:41,184 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:41,347 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 40 transitions. Complement of second has 13 states. [2022-11-16 11:08:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-16 11:08:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-16 11:08:41,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-16 11:08:41,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:08:41,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-16 11:08:41,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:08:41,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-16 11:08:41,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:08:41,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2022-11-16 11:08:41,371 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:08:41,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 18 states and 23 transitions. [2022-11-16 11:08:41,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-16 11:08:41,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-16 11:08:41,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2022-11-16 11:08:41,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:08:41,386 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-11-16 11:08:41,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2022-11-16 11:08:41,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2022-11-16 11:08:41,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:08:41,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-16 11:08:41,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-16 11:08:41,415 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-16 11:08:41,416 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:08:41,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2022-11-16 11:08:41,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:08:41,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:08:41,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:08:41,417 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:41,417 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 11:08:41,418 INFO L748 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 123#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 117#L18 assume !(main_~i~0#1 <= 0); 118#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 125#recENTRY ~a := #in~a; 126#L5 assume !(0 == ~a); 120#L8 call #t~ret0 := rec(~a - 1);< 124#recENTRY ~a := #in~a; 127#L5 assume 0 == ~a;#res := 0; 128#recFINAL assume true; 130#recEXIT >#35#return; 119#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 121#L10-2 [2022-11-16 11:08:41,418 INFO L750 eck$LassoCheckResult]: Loop: 121#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 121#L10-2 [2022-11-16 11:08:41,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:41,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1880555327, now seen corresponding path program 1 times [2022-11-16 11:08:41,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:41,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165951870] [2022-11-16 11:08:41,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:41,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:41,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:08:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:41,436 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:08:41,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:41,437 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2022-11-16 11:08:41,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:41,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726438978] [2022-11-16 11:08:41,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:41,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:41,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:08:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:41,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:08:41,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:41,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1832327022, now seen corresponding path program 1 times [2022-11-16 11:08:41,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:41,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144073208] [2022-11-16 11:08:41,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:41,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:41,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:41,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 11:08:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:08:41,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:41,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144073208] [2022-11-16 11:08:41,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144073208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:41,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:41,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:08:41,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844718451] [2022-11-16 11:08:41,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:41,659 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:08:41,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:08:41,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:08:41,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:08:41,660 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:08:41,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:41,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:08:41,660 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:08:41,660 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2022-11-16 11:08:41,661 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:08:41,661 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:08:41,662 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:41,669 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:41,696 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:08:41,697 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:08:41,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:41,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:41,698 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:41,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-16 11:08:41,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:41,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:41,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:41,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:41,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:41,742 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:41,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:08:41,748 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:41,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-16 11:08:41,796 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:08:41,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:41,805 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:08:41,805 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:08:41,805 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:08:41,805 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:08:41,805 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:08:41,806 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:41,806 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:08:41,806 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:08:41,806 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2022-11-16 11:08:41,806 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:08:41,806 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:08:41,807 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:41,810 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:41,842 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:08:41,842 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:08:41,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:41,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:41,844 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:41,852 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 [2022-11-16 11:08:41,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-16 11:08:41,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:41,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:41,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:41,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:41,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:41,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:41,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:41,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:08:41,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:41,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:41,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:41,902 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:41,908 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 [2022-11-16 11:08:41,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-16 11:08:41,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:41,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:41,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:41,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:41,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:41,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:41,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:41,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:08:41,938 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:08:41,938 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 11:08:41,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:41,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:41,940 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:41,944 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:08:41,944 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:08:41,944 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:08:41,945 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2022-11-16 11:08:41,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-16 11:08:41,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:41,950 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:08:41,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:42,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:08:42,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:42,154 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:08:42,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:42,156 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-11-16 11:08:42,157 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:08:42,223 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 46 states and 65 transitions. Complement of second has 12 states. [2022-11-16 11:08:42,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-16 11:08:42,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:08:42,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2022-11-16 11:08:42,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 12 letters. Loop has 1 letters. [2022-11-16 11:08:42,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:08:42,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 13 letters. Loop has 1 letters. [2022-11-16 11:08:42,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:08:42,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 12 letters. Loop has 2 letters. [2022-11-16 11:08:42,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:08:42,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 65 transitions. [2022-11-16 11:08:42,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:08:42,247 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 24 states and 31 transitions. [2022-11-16 11:08:42,248 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-11-16 11:08:42,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-16 11:08:42,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2022-11-16 11:08:42,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:08:42,249 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2022-11-16 11:08:42,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2022-11-16 11:08:42,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2022-11-16 11:08:42,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 11:08:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2022-11-16 11:08:42,257 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2022-11-16 11:08:42,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:42,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:08:42,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:08:42,261 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:08:42,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:42,290 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2022-11-16 11:08:42,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2022-11-16 11:08:42,293 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:08:42,297 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 23 transitions. [2022-11-16 11:08:42,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-16 11:08:42,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-16 11:08:42,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2022-11-16 11:08:42,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:08:42,298 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-16 11:08:42,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2022-11-16 11:08:42,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-16 11:08:42,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-16 11:08:42,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-11-16 11:08:42,303 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-16 11:08:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:08:42,305 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-16 11:08:42,306 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 11:08:42,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2022-11-16 11:08:42,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:08:42,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:08:42,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:08:42,308 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:42,308 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 11:08:42,309 INFO L748 eck$LassoCheckResult]: Stem: 299#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 300#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 293#L18 assume !(main_~i~0#1 <= 0); 294#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 302#recENTRY ~a := #in~a; 303#L5 assume !(0 == ~a); 296#L8 call #t~ret0 := rec(~a - 1);< 301#recENTRY ~a := #in~a; 304#L5 assume !(0 == ~a); 297#L8 call #t~ret0 := rec(~a - 1);< 301#recENTRY ~a := #in~a; 305#L5 assume 0 == ~a;#res := 0; 308#recFINAL assume true; 311#recEXIT >#35#return; 312#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 306#L10-2 assume !(~rescopy~0 > 0); 307#L10-3 #res := 1 + ~res~0; 310#recFINAL assume true; 309#recEXIT >#35#return; 295#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 298#L10-2 [2022-11-16 11:08:42,309 INFO L750 eck$LassoCheckResult]: Loop: 298#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 298#L10-2 [2022-11-16 11:08:42,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:42,309 INFO L85 PathProgramCache]: Analyzing trace with hash -873780632, now seen corresponding path program 1 times [2022-11-16 11:08:42,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:42,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174467644] [2022-11-16 11:08:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:42,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:42,322 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:08:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:42,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:08:42,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:42,334 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 2 times [2022-11-16 11:08:42,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:42,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870238793] [2022-11-16 11:08:42,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:42,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:42,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:08:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:42,341 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:08:42,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:42,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1317395801, now seen corresponding path program 1 times [2022-11-16 11:08:42,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:42,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777545395] [2022-11-16 11:08:42,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:42,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:42,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:08:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:42,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:08:42,384 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:08:42,385 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:08:42,385 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:08:42,385 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:08:42,385 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:08:42,385 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:42,385 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:08:42,386 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:08:42,386 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2022-11-16 11:08:42,386 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:08:42,386 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:08:42,387 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:42,394 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:42,422 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:08:42,422 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:08:42,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:42,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:42,424 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:42,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:08:42,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:42,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-16 11:08:42,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:42,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:42,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:42,466 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:42,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:08:42,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:08:42,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-16 11:08:42,515 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:08:42,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:42,524 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:08:42,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:08:42,525 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:08:42,525 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:08:42,525 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:08:42,525 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:42,525 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:08:42,525 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:08:42,525 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2022-11-16 11:08:42,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:08:42,526 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:08:42,526 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:42,535 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:08:42,568 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:08:42,569 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:08:42,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:42,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:42,570 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:42,575 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 [2022-11-16 11:08:42,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:08:42,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:08:42,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-16 11:08:42,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:08:42,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:08:42,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:08:42,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:08:42,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:08:42,599 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:08:42,602 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:08:42,602 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 11:08:42,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:08:42,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:42,622 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:42,624 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:08:42,624 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:08:42,624 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:08:42,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-16 11:08:42,624 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2022-11-16 11:08:42,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:42,634 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:08:42,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:42,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:08:42,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:42,916 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:08:42,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:42,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:42,919 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-11-16 11:08:42,919 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:08:42,959 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 26 states and 30 transitions. Complement of second has 7 states. [2022-11-16 11:08:42,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-16 11:08:42,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:08:42,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-16 11:08:42,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 20 letters. Loop has 1 letters. [2022-11-16 11:08:42,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:08:42,962 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 11:08:42,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:43,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:08:43,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:43,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:43,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-16 11:08:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:43,189 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:08:43,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:43,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:43,191 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2022-11-16 11:08:43,192 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:08:43,233 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 26 states and 30 transitions. Complement of second has 7 states. [2022-11-16 11:08:43,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-16 11:08:43,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:08:43,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-16 11:08:43,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 20 letters. Loop has 1 letters. [2022-11-16 11:08:43,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:08:43,235 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-16 11:08:43,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:43,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:08:43,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:43,420 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:08:43,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:08:43,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:43,421 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-11-16 11:08:43,422 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:08:43,462 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 33 states and 41 transitions. Complement of second has 9 states. [2022-11-16 11:08:43,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-16 11:08:43,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:08:43,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-11-16 11:08:43,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 20 letters. Loop has 1 letters. [2022-11-16 11:08:43,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:08:43,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 21 letters. Loop has 1 letters. [2022-11-16 11:08:43,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:08:43,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 20 letters. Loop has 2 letters. [2022-11-16 11:08:43,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:08:43,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 41 transitions. [2022-11-16 11:08:43,468 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:08:43,469 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2022-11-16 11:08:43,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:08:43,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:08:43,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:08:43,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:43,469 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:08:43,469 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:08:43,469 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:08:43,470 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 11:08:43,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:08:43,470 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:08:43,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 11:08:43,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:08:43 BoogieIcfgContainer [2022-11-16 11:08:43,480 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:08:43,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:08:43,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:08:43,481 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:08:43,481 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:38" (3/4) ... [2022-11-16 11:08:43,485 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:08:43,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:08:43,489 INFO L158 Benchmark]: Toolchain (without parser) took 5809.37ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 92.5MB in the beginning and 89.5MB in the end (delta: 3.1MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2022-11-16 11:08:43,489 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:08:43,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.11ms. Allocated memory is still 130.0MB. Free memory was 92.2MB in the beginning and 105.2MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:08:43,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.86ms. Allocated memory is still 130.0MB. Free memory was 105.2MB in the beginning and 104.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:08:43,491 INFO L158 Benchmark]: Boogie Preprocessor took 26.18ms. Allocated memory is still 130.0MB. Free memory was 104.1MB in the beginning and 102.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:08:43,491 INFO L158 Benchmark]: RCFGBuilder took 342.27ms. Allocated memory is still 130.0MB. Free memory was 102.7MB in the beginning and 93.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:08:43,494 INFO L158 Benchmark]: BuchiAutomizer took 5038.81ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 93.9MB in the beginning and 90.5MB in the end (delta: 3.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2022-11-16 11:08:43,494 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 157.3MB. Free memory was 90.5MB in the beginning and 89.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:08:43,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.11ms. Allocated memory is still 130.0MB. Free memory was 92.2MB in the beginning and 105.2MB in the end (delta: -13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.86ms. Allocated memory is still 130.0MB. Free memory was 105.2MB in the beginning and 104.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.18ms. Allocated memory is still 130.0MB. Free memory was 104.1MB in the beginning and 102.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 342.27ms. Allocated memory is still 130.0MB. Free memory was 102.7MB in the beginning and 93.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5038.81ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 93.9MB in the beginning and 90.5MB in the end (delta: 3.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 157.3MB. Free memory was 90.5MB in the beginning and 89.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function \old(a) and consists of 5 locations. One deterministic module has affine ranking function rescopy and consists of 5 locations. One nondeterministic module has affine ranking function rescopy and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 78 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf94 smp100 dnf123 smp100 tf108 neg96 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 153ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 11:08:43,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e14750-adff-465e-85de-53e27e9f77a8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE