./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/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_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/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_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/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 744c3d26555bbd53a7a0d9e7c64efe010ba06d0f67ec9ca21eb74ed1148222d3 --- 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 11:30:09,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:30:09,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:30:09,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:30:09,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:30:09,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:30:09,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:30:09,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:30:09,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:30:09,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:30:09,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:30:09,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:30:09,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:30:09,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:30:09,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:30:09,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:30:09,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:30:09,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:30:09,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:30:09,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:30:09,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:30:09,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:30:09,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:30:09,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:30:09,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:30:09,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:30:09,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:30:09,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:30:09,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:30:09,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:30:09,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:30:09,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:30:09,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:30:09,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:30:09,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:30:09,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:30:09,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:30:09,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:30:09,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:30:09,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:30:09,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:30:09,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 11:30:09,638 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:30:09,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:30:09,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:30:09,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:30:09,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:30:09,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:30:09,641 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:30:09,642 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:30:09,642 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:30:09,642 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:30:09,643 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:30:09,644 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:30:09,644 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:30:09,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:30:09,644 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:30:09,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:30:09,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:30:09,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:30:09,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:30:09,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:30:09,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:30:09,646 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:30:09,647 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:30:09,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:30:09,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:30:09,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:30:09,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:30:09,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:30:09,650 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:30:09,650 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_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 744c3d26555bbd53a7a0d9e7c64efe010ba06d0f67ec9ca21eb74ed1148222d3 [2022-11-16 11:30:09,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:30:10,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:30:10,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:30:10,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:30:10,018 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:30:10,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2022-11-16 11:30:10,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/data/138d19e72/a2cf2be32f47451e9d57cd27557d1c12/FLAG62452c0e2 [2022-11-16 11:30:10,634 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:30:10,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2022-11-16 11:30:10,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/data/138d19e72/a2cf2be32f47451e9d57cd27557d1c12/FLAG62452c0e2 [2022-11-16 11:30:10,991 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/data/138d19e72/a2cf2be32f47451e9d57cd27557d1c12 [2022-11-16 11:30:10,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:30:10,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:30:11,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:11,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:30:11,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:30:11,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:10" (1/1) ... [2022-11-16 11:30:11,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b6585b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11, skipping insertion in model container [2022-11-16 11:30:11,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:10" (1/1) ... [2022-11-16 11:30:11,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:30:11,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:30:11,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:11,206 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:30:11,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:11,234 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:30:11,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11 WrapperNode [2022-11-16 11:30:11,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:11,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:11,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:30:11,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:30:11,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,266 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-11-16 11:30:11,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:11,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:30:11,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:30:11,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:30:11,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,282 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:30:11,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:30:11,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:30:11,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:30:11,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:11,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:11,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:11,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:30:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2022-11-16 11:30:11,378 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2022-11-16 11:30:11,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:30:11,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:30:11,430 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:30:11,432 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:30:11,534 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:30:11,541 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:30:11,541 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:30:11,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:11 BoogieIcfgContainer [2022-11-16 11:30:11,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:30:11,544 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:30:11,545 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:30:11,549 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:30:11,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:30:11,550 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:30:10" (1/3) ... [2022-11-16 11:30:11,551 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59ac4e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:30:11, skipping insertion in model container [2022-11-16 11:30:11,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:30:11,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (2/3) ... [2022-11-16 11:30:11,552 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59ac4e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:30:11, skipping insertion in model container [2022-11-16 11:30:11,552 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:30:11,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:11" (3/3) ... [2022-11-16 11:30:11,554 INFO L332 chiAutomizerObserver]: Analyzing ICFG TerminatorRec02.c [2022-11-16 11:30:11,610 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:30:11,611 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:30:11,611 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:30:11,612 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:30:11,612 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:30:11,612 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:30:11,612 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:30:11,612 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:30:11,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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 11:30:11,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:30:11,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:30:11,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:30:11,646 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-16 11:30:11,647 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:30:11,647 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:30:11,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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 11:30:11,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:30:11,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:30:11,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:30:11,650 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-16 11:30:11,650 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:30:11,658 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 14#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~x~0#1, main_~y~1#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L27true assume !(main_~x~0#1 < 0);main_~y~1#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 5#L30true assume !(main_~y~1#1 < 0);main_~z~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 12#L33true call main_#t~ret4#1 := fact(main_~x~0#1);< 8#factENTRYtrue [2022-11-16 11:30:11,658 INFO L750 eck$LassoCheckResult]: Loop: 8#factENTRYtrue ~x := #in~x; 15#L18true assume ~x > 1; 9#L19true call #t~ret0 := fact(~x - 1);< 8#factENTRYtrue [2022-11-16 11:30:11,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:11,665 INFO L85 PathProgramCache]: Analyzing trace with hash 36330292, now seen corresponding path program 1 times [2022-11-16 11:30:11,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:11,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976973421] [2022-11-16 11:30:11,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:11,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:30:11,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:30:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:30:11,786 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:30:11,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:11,790 INFO L85 PathProgramCache]: Analyzing trace with hash 29910, now seen corresponding path program 1 times [2022-11-16 11:30:11,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:11,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852718349] [2022-11-16 11:30:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:11,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:30:11,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:30:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:30:11,804 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:30:11,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:11,806 INFO L85 PathProgramCache]: Analyzing trace with hash -16029501, now seen corresponding path program 1 times [2022-11-16 11:30:11,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:11,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349113073] [2022-11-16 11:30:11,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:11,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:30:11,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:30:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:30:11,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:30:11,916 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:30:11,917 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:30:11,917 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:30:11,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:30:11,918 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:30:11,918 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:11,918 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:30:11,918 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:30:11,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: TerminatorRec02.c_Iteration1_Loop [2022-11-16 11:30:11,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:30:11,935 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:30:11,950 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 11:30:11,977 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 11:30:11,982 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 11:30:12,007 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 11:30:12,010 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 11:30:12,075 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:30:12,091 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:30:12,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:12,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:12,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:12,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:30:12,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:30:12,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:30:12,143 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:30:12,143 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fact_~y~0=0} Honda state: {fact_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:30:12,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:12,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:12,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:12,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:12,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:30:12,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:30:12,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:30:12,195 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:30:12,196 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fact_~x=0} Honda state: {fact_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:30:12,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:12,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:12,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:12,207 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:12,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:30:12,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:30:12,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:30:12,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:12,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:12,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:12,258 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:12,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:30:12,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:30:12,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:30:12,351 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:30:12,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:12,362 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:30:12,362 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:30:12,363 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:30:12,363 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:30:12,363 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:30:12,363 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:12,363 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:30:12,363 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:30:12,364 INFO L133 ssoRankerPreferences]: Filename of dumped script: TerminatorRec02.c_Iteration1_Loop [2022-11-16 11:30:12,364 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:30:12,364 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:30:12,366 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 11:30:12,376 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 11:30:12,383 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 11:30:12,390 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 11:30:12,408 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 11:30:12,463 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:30:12,469 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:30:12,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:12,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:12,480 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:12,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:30:12,496 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 11:30:12,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:30:12,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:30:12,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:30:12,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:30:12,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:30:12,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:30:12,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:30:12,524 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:30:12,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:12,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:12,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:12,547 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:12,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:30:12,565 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 11:30:12,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:30:12,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:30:12,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:30:12,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:30:12,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:30:12,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:30:12,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:30:12,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:30:12,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:12,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:12,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:12,597 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:12,609 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 11:30:12,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:30:12,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:30:12,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:30:12,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:30:12,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:30:12,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:30:12,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:30:12,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:30:12,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:30:12,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:12,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:12,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:12,644 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:12,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:30:12,672 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 11:30:12,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:30:12,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:30:12,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:30:12,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:30:12,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:30:12,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:30:12,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:30:12,703 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:30:12,717 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:30:12,717 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-16 11:30:12,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:30:12,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:12,725 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:12,733 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:30:12,733 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:30:12,733 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:30:12,734 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fact_#in~x) = 1*fact_#in~x Supporting invariants [] [2022-11-16 11:30:12,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:30:12,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:12,746 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:30:12,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:12,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:30:12,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:12,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:30:12,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:12,917 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 11:30:12,968 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-16 11:30:12,970 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 11:30:13,095 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 33 states and 38 transitions. Complement of second has 12 states. [2022-11-16 11:30:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-16 11:30:13,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 11:30:13,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-16 11:30:13,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-16 11:30:13,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:30:13,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 3 letters. [2022-11-16 11:30:13,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:30:13,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 6 letters. [2022-11-16 11:30:13,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:30:13,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 38 transitions. [2022-11-16 11:30:13,113 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:30:13,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2022-11-16 11:30:13,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:30:13,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:30:13,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:30:13,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:13,118 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:30:13,119 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:30:13,119 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:30:13,119 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:30:13,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:30:13,119 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:30:13,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 11:30:13,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:30:13 BoogieIcfgContainer [2022-11-16 11:30:13,128 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:30:13,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:30:13,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:30:13,135 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:30:13,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:11" (3/4) ... [2022-11-16 11:30:13,140 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:30:13,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:30:13,143 INFO L158 Benchmark]: Toolchain (without parser) took 2146.64ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 91.4MB in the beginning and 122.1MB in the end (delta: -30.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-11-16 11:30:13,144 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 35.4MB in the beginning and 35.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:30:13,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.44ms. Allocated memory is still 125.8MB. Free memory was 91.1MB in the beginning and 100.9MB in the end (delta: -9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:30:13,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.92ms. Allocated memory is still 125.8MB. Free memory was 100.9MB in the beginning and 99.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:30:13,151 INFO L158 Benchmark]: Boogie Preprocessor took 17.45ms. Allocated memory is still 125.8MB. Free memory was 99.8MB in the beginning and 98.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:30:13,157 INFO L158 Benchmark]: RCFGBuilder took 258.64ms. Allocated memory is still 125.8MB. Free memory was 98.7MB in the beginning and 89.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:30:13,158 INFO L158 Benchmark]: BuchiAutomizer took 1583.76ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 89.9MB in the beginning and 123.0MB in the end (delta: -33.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-11-16 11:30:13,158 INFO L158 Benchmark]: Witness Printer took 10.33ms. Allocated memory is still 161.5MB. Free memory was 123.0MB in the beginning and 122.1MB in the end (delta: 876.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:30:13,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 35.4MB in the beginning and 35.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.44ms. Allocated memory is still 125.8MB. Free memory was 91.1MB in the beginning and 100.9MB in the end (delta: -9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.92ms. Allocated memory is still 125.8MB. Free memory was 100.9MB in the beginning and 99.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.45ms. Allocated memory is still 125.8MB. Free memory was 99.8MB in the beginning and 98.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 258.64ms. Allocated memory is still 125.8MB. Free memory was 98.7MB in the beginning and 89.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1583.76ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 89.9MB in the beginning and 123.0MB in the end (delta: -33.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 10.33ms. Allocated memory is still 161.5MB. Free memory was 123.0MB in the beginning and 122.1MB in the end (delta: 876.2kB). There was no memory consumed. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 11 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s 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 11:30:13,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:13,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f46df-c3bf-423f-8f75-1c0c06d767b0/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