./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/MultCommutative-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/MultCommutative-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce29b37e076ab683230ebf17073db3b7759ea39570dd2ef64322b6d43bb636cd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:46:32,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:46:33,006 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 10:46:33,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:46:33,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:46:33,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:46:33,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:46:33,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:46:33,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:46:33,045 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:46:33,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:46:33,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:46:33,047 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:46:33,048 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 10:46:33,049 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 10:46:33,050 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 10:46:33,050 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 10:46:33,051 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 10:46:33,052 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 10:46:33,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:46:33,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 10:46:33,054 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:46:33,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:46:33,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:46:33,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:46:33,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 10:46:33,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 10:46:33,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 10:46:33,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:46:33,059 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:46:33,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:46:33,060 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 10:46:33,061 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:46:33,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:46:33,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:46:33,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:46:33,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:46:33,064 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 10:46:33,064 INFO L153 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_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce29b37e076ab683230ebf17073db3b7759ea39570dd2ef64322b6d43bb636cd [2023-11-26 10:46:33,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:46:33,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:46:33,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:46:33,575 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:46:33,576 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:46:33,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/recursive/MultCommutative-2.c [2023-11-26 10:46:37,062 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:46:37,296 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:46:37,297 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/sv-benchmarks/c/recursive/MultCommutative-2.c [2023-11-26 10:46:37,306 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/data/264f9c1fa/29011b84dd594560a4ef9e0dbb7ab70e/FLAG73d19ba10 [2023-11-26 10:46:37,329 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/data/264f9c1fa/29011b84dd594560a4ef9e0dbb7ab70e [2023-11-26 10:46:37,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:46:37,342 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:46:37,344 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:37,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:46:37,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:46:37,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d93f7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37, skipping insertion in model container [2023-11-26 10:46:37,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,383 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:46:37,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:37,695 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:46:37,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:37,738 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:46:37,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37 WrapperNode [2023-11-26 10:46:37,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:37,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:37,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:46:37,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:46:37,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,782 INFO L138 Inliner]: procedures = 13, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2023-11-26 10:46:37,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:37,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:46:37,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:46:37,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:46:37,799 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,800 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,815 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:46:37,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:46:37,833 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:46:37,833 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:46:37,834 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:46:37,835 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (1/1) ... [2023-11-26 10:46:37,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:37,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:37,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:37,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 10:46:37,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:46:37,927 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2023-11-26 10:46:37,927 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2023-11-26 10:46:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:46:37,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:46:37,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:46:38,014 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:46:38,017 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:46:38,174 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:46:38,190 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:46:38,190 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:46:38,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:38 BoogieIcfgContainer [2023-11-26 10:46:38,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:46:38,194 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 10:46:38,195 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 10:46:38,200 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 10:46:38,201 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:46:38,202 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 10:46:37" (1/3) ... [2023-11-26 10:46:38,203 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4566000c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:46:38, skipping insertion in model container [2023-11-26 10:46:38,203 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:46:38,204 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:37" (2/3) ... [2023-11-26 10:46:38,204 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4566000c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:46:38, skipping insertion in model container [2023-11-26 10:46:38,204 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:46:38,205 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:38" (3/3) ... [2023-11-26 10:46:38,215 INFO L332 chiAutomizerObserver]: Analyzing ICFG MultCommutative-2.c [2023-11-26 10:46:38,293 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 10:46:38,294 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 10:46:38,294 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 10:46:38,294 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 10:46:38,294 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 10:46:38,294 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 10:46:38,295 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 10:46:38,296 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 10:46:38,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 10:46:38,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:46:38,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:46:38,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:46:38,345 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-26 10:46:38,345 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 10:46:38,346 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 10:46:38,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 10:46:38,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:46:38,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:46:38,354 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:46:38,355 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-26 10:46:38,355 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 10:46:38,365 INFO L748 eck$LassoCheckResult]: Stem: 18#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 7#L29true assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 10#L33true assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 13#L36true call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 5#$Ultimate##0true [2023-11-26 10:46:38,365 INFO L750 eck$LassoCheckResult]: Loop: 5#$Ultimate##0true ~n := #in~n;~m := #in~m; 3#L18true assume ~m < 0; 20#L19true call #t~ret4 := mult(~n, -~m);< 5#$Ultimate##0true [2023-11-26 10:46:38,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:38,376 INFO L85 PathProgramCache]: Analyzing trace with hash 42056135, now seen corresponding path program 1 times [2023-11-26 10:46:38,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:38,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364818481] [2023-11-26 10:46:38,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:38,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:38,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:38,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:38,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:38,603 INFO L85 PathProgramCache]: Analyzing trace with hash 29927, now seen corresponding path program 1 times [2023-11-26 10:46:38,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:38,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330220998] [2023-11-26 10:46:38,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:38,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:38,616 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:38,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:38,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:38,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1236132511, now seen corresponding path program 1 times [2023-11-26 10:46:38,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:38,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494642791] [2023-11-26 10:46:38,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:38,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:38,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:38,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:38,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494642791] [2023-11-26 10:46:38,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494642791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:38,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:38,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:38,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633309483] [2023-11-26 10:46:38,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:38,923 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:46:38,923 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:46:38,923 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:46:38,924 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:46:38,924 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:46:38,924 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:38,924 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:46:38,924 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:46:38,924 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2023-11-26 10:46:38,925 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:46:38,925 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:46:38,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:38,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:38,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:38,960 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:38,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:38,970 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:38,974 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:39,047 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:46:39,048 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:46:39,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:39,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:39,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 10:46:39,110 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:39,110 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:39,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 10:46:39,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:39,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:39,163 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:39,163 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:39,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:39,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:39,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 10:46:39,212 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:39,212 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:39,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,223 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:39,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:39,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 10:46:39,262 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:39,262 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:39,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 10:46:39,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:39,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:39,308 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:39,308 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:39,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,321 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:39,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:39,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 10:46:39,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:39,355 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:39,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,373 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:39,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:39,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 10:46:39,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,421 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-26 10:46:39,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:46:39,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:39,487 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:46:39,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,491 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:46:39,491 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:46:39,491 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:46:39,492 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:46:39,492 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:46:39,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:46:39,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:46:39,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2023-11-26 10:46:39,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:46:39,492 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:46:39,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:39,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:39,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:39,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:39,516 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:39,521 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:39,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:39,588 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:46:39,594 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:46:39,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,598 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-26 10:46:39,633 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 [2023-11-26 10:46:39,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:39,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:39,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:39,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:39,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:39,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:39,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:39,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:39,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,665 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-26 10:46:39,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:46:39,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:39,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:39,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:39,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:39,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:39,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:39,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:39,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:39,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,724 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-26 10:46:39,727 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 [2023-11-26 10:46:39,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:39,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:39,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:39,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:39,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:39,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:39,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:39,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:39,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,748 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-26 10:46:39,752 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 [2023-11-26 10:46:39,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:39,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:39,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:39,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:39,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:39,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:39,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:39,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:39,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,777 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-26 10:46:39,780 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 [2023-11-26 10:46:39,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:39,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:39,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:39,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:39,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:39,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:39,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:39,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:39,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,809 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-26 10:46:39,815 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 [2023-11-26 10:46:39,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:39,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:39,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:39,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:39,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:39,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:39,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:39,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:39,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:39,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,843 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-26 10:46:39,849 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 [2023-11-26 10:46:39,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:39,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:39,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:39,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:39,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:39,865 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:39,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:39,897 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:46:39,901 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 10:46:39,901 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 10:46:39,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:39,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:39,943 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:39,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-26 10:46:39,946 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:46:39,946 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:46:39,947 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:46:39,947 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2023-11-26 10:46:39,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-26 10:46:39,954 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:46:39,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:40,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:46:40,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:40,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:46:40,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:40,194 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 [2023-11-26 10:46:40,197 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2023-11-26 10:46:40,331 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4). 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 52 states and 67 transitions. Complement of second has 12 states. [2023-11-26 10:46:40,333 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 [2023-11-26 10:46:40,339 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) [2023-11-26 10:46:40,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-26 10:46:40,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-26 10:46:40,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:40,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2023-11-26 10:46:40,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:40,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2023-11-26 10:46:40,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:40,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 67 transitions. [2023-11-26 10:46:40,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:46:40,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 32 states and 45 transitions. [2023-11-26 10:46:40,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2023-11-26 10:46:40,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2023-11-26 10:46:40,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 45 transitions. [2023-11-26 10:46:40,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:46:40,379 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 45 transitions. [2023-11-26 10:46:40,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 45 transitions. [2023-11-26 10:46:40,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2023-11-26 10:46:40,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-26 10:46:40,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2023-11-26 10:46:40,412 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 37 transitions. [2023-11-26 10:46:40,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:40,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:46:40,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:40,417 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:40,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:40,481 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2023-11-26 10:46:40,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2023-11-26 10:46:40,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:46:40,485 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 34 transitions. [2023-11-26 10:46:40,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2023-11-26 10:46:40,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2023-11-26 10:46:40,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2023-11-26 10:46:40,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:40,486 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 34 transitions. [2023-11-26 10:46:40,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2023-11-26 10:46:40,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2023-11-26 10:46:40,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 10:46:40,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2023-11-26 10:46:40,497 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-11-26 10:46:40,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:40,498 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-11-26 10:46:40,498 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 10:46:40,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2023-11-26 10:46:40,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:46:40,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:46:40,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:46:40,501 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:40,501 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 10:46:40,501 INFO L748 eck$LassoCheckResult]: Stem: 212#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 210#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 206#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 207#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 195#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 197#$Ultimate##0 ~n := #in~n;~m := #in~m; 194#L18 assume !(~m < 0); 196#L21 assume !(0 == ~m); 201#L24 call #t~ret5 := mult(~n, ~m - 1);< 211#$Ultimate##0 [2023-11-26 10:46:40,502 INFO L750 eck$LassoCheckResult]: Loop: 211#$Ultimate##0 ~n := #in~n;~m := #in~m; 215#L18 assume ~m < 0; 204#L19 call #t~ret4 := mult(~n, -~m);< 211#$Ultimate##0 [2023-11-26 10:46:40,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:40,502 INFO L85 PathProgramCache]: Analyzing trace with hash 334599728, now seen corresponding path program 1 times [2023-11-26 10:46:40,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:40,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625924490] [2023-11-26 10:46:40,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:40,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:40,517 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:40,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:40,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:40,536 INFO L85 PathProgramCache]: Analyzing trace with hash 29927, now seen corresponding path program 2 times [2023-11-26 10:46:40,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:40,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71518871] [2023-11-26 10:46:40,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:40,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:40,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:40,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:40,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:40,548 INFO L85 PathProgramCache]: Analyzing trace with hash -558597032, now seen corresponding path program 1 times [2023-11-26 10:46:40,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:40,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870895298] [2023-11-26 10:46:40,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:40,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:40,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:40,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:40,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870895298] [2023-11-26 10:46:40,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870895298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:40,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:40,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:40,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025861546] [2023-11-26 10:46:40,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:40,721 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:46:40,721 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:46:40,721 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:46:40,721 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:46:40,722 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:46:40,722 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:40,722 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:46:40,722 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:46:40,722 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2023-11-26 10:46:40,722 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:46:40,722 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:46:40,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:40,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:40,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:40,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:40,741 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:40,745 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:40,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:40,798 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:46:40,798 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:46:40,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:40,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:40,800 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:40,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-26 10:46:40,814 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:40,814 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:40,839 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:40,839 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:40,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:40,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:40,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:40,851 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:40,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:40,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:40,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-26 10:46:40,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:40,881 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:40,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:40,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:40,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:40,892 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:40,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:40,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:40,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-26 10:46:40,939 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:40,939 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:40,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:40,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:40,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:40,950 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:40,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:40,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:40,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-26 10:46:40,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:40,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:40,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:40,989 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:40,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:46:40,994 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:41,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-26 10:46:41,094 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:46:41,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:41,098 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:46:41,099 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:46:41,099 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:46:41,099 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:46:41,099 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:46:41,099 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:41,099 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:46:41,099 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:46:41,099 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2023-11-26 10:46:41,099 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:46:41,099 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:46:41,101 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:41,105 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:41,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:41,113 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:41,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:41,124 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:41,127 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:41,181 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:46:41,181 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:46:41,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:41,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:41,183 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:41,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:41,215 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 [2023-11-26 10:46:41,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:41,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:41,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:41,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:41,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:41,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:41,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:41,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-26 10:46:41,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:41,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:41,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:41,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:41,248 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:41,255 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 [2023-11-26 10:46:41,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-26 10:46:41,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:41,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:41,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:41,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:41,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:41,271 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:41,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:41,290 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:41,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:41,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:41,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:41,296 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:41,303 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 [2023-11-26 10:46:41,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-26 10:46:41,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:41,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:41,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:41,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:41,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:41,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:41,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:41,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:41,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:41,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:41,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:41,339 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:41,344 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 [2023-11-26 10:46:41,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-26 10:46:41,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:41,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:41,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:41,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:41,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:41,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:41,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:41,374 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:46:41,379 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 10:46:41,379 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 10:46:41,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:41,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:41,381 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:41,387 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:46:41,388 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:46:41,388 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:46:41,388 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2023-11-26 10:46:41,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-26 10:46:41,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:41,395 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:46:41,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:41,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:46:41,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:41,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:46:41,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:41,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:41,577 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 [2023-11-26 10:46:41,577 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 6 Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:41,688 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 6. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 73 states and 92 transitions. Complement of second has 15 states. [2023-11-26 10:46:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-26 10:46:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2023-11-26 10:46:41,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2023-11-26 10:46:41,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:41,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2023-11-26 10:46:41,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:41,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2023-11-26 10:46:41,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:41,693 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 92 transitions. [2023-11-26 10:46:41,700 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-26 10:46:41,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 51 states and 66 transitions. [2023-11-26 10:46:41,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2023-11-26 10:46:41,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2023-11-26 10:46:41,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 66 transitions. [2023-11-26 10:46:41,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:46:41,704 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 66 transitions. [2023-11-26 10:46:41,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 66 transitions. [2023-11-26 10:46:41,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2023-11-26 10:46:41,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 33 states have internal predecessors, (38), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-26 10:46:41,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2023-11-26 10:46:41,714 INFO L240 hiAutomatonCegarLoop]: Abstraction has 44 states and 55 transitions. [2023-11-26 10:46:41,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:41,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:46:41,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:41,715 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:41,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:41,780 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2023-11-26 10:46:41,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 60 transitions. [2023-11-26 10:46:41,790 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2023-11-26 10:46:41,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 48 transitions. [2023-11-26 10:46:41,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2023-11-26 10:46:41,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2023-11-26 10:46:41,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 48 transitions. [2023-11-26 10:46:41,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:41,797 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 48 transitions. [2023-11-26 10:46:41,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 48 transitions. [2023-11-26 10:46:41,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-26 10:46:41,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 32 states have internal predecessors, (33), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-26 10:46:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2023-11-26 10:46:41,808 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 48 transitions. [2023-11-26 10:46:41,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:46:41,815 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2023-11-26 10:46:41,815 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 10:46:41,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 48 transitions. [2023-11-26 10:46:41,816 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2023-11-26 10:46:41,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:46:41,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:46:41,817 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:41,817 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 10:46:41,817 INFO L748 eck$LassoCheckResult]: Stem: 484#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 481#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 479#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 480#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 470#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 482#$Ultimate##0 ~n := #in~n;~m := #in~m; 495#L18 assume !(~m < 0); 493#L21 assume 0 == ~m;#res := 0; 492#multFINAL assume true; 469#multEXIT >#48#return; 471#L36-1 main_~res1~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 485#L37 call main_#t~ret9#1 := mult(main_~n~0#1, main_~m~0#1);< 503#$Ultimate##0 [2023-11-26 10:46:41,818 INFO L750 eck$LassoCheckResult]: Loop: 503#$Ultimate##0 ~n := #in~n;~m := #in~m; 502#L18 assume ~m < 0; 500#L19 call #t~ret4 := mult(~n, -~m);< 503#$Ultimate##0 [2023-11-26 10:46:41,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:41,818 INFO L85 PathProgramCache]: Analyzing trace with hash -560426956, now seen corresponding path program 1 times [2023-11-26 10:46:41,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:41,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907901698] [2023-11-26 10:46:41,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:41,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:41,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:41,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:41,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:41,841 INFO L85 PathProgramCache]: Analyzing trace with hash 29927, now seen corresponding path program 3 times [2023-11-26 10:46:41,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:41,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792636020] [2023-11-26 10:46:41,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:41,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:41,846 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:41,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:41,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:41,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1141566508, now seen corresponding path program 1 times [2023-11-26 10:46:41,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:41,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811860841] [2023-11-26 10:46:41,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:41,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:41,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-26 10:46:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:41,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:41,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811860841] [2023-11-26 10:46:41,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811860841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:41,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:41,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:41,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92902351] [2023-11-26 10:46:41,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:42,015 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:46:42,015 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:46:42,015 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:46:42,015 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:46:42,015 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:46:42,015 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,015 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:46:42,016 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:46:42,016 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2023-11-26 10:46:42,016 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:46:42,016 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:46:42,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,098 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:46:42,098 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:46:42,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:42,103 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:42,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:42,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:42,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-26 10:46:42,128 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:42,128 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:42,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:42,133 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:42,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-26 10:46:42,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:42,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:42,150 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:42,150 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:42,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:42,155 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:42,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-26 10:46:42,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:42,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:42,195 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:42,195 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:42,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:42,206 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:42,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-26 10:46:42,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:42,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:42,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:42,268 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:42,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:46:42,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:42,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-26 10:46:42,387 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:46:42,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,397 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:46:42,397 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:46:42,398 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:46:42,398 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:46:42,398 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:46:42,398 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,398 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:46:42,398 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:46:42,398 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2023-11-26 10:46:42,398 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:46:42,398 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:46:42,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,404 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:42,501 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:46:42,501 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:46:42,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:42,503 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:42,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:46:42,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:42,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:42,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:42,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:42,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:42,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-26 10:46:42,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:42,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:42,535 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:42,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:42,540 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:42,544 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 [2023-11-26 10:46:42,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-26 10:46:42,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:42,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:42,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:42,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:42,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:42,556 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:42,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:42,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:42,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:42,561 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:42,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-26 10:46:42,566 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 [2023-11-26 10:46:42,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:42,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:42,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:42,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:42,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:42,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:42,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:42,606 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:42,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:42,612 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:42,623 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 [2023-11-26 10:46:42,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-26 10:46:42,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:42,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:42,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:42,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:42,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:42,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:42,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:42,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:42,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:42,676 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:42,681 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 [2023-11-26 10:46:42,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-26 10:46:42,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:42,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:42,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:42,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:42,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:42,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:42,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:42,722 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:46:42,725 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 10:46:42,725 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 10:46:42,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:42,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:42,730 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:42,731 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:46:42,731 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:46:42,731 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:46:42,731 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2023-11-26 10:46:42,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-26 10:46:42,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,738 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:46:42,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:42,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:46:42,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:42,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:46:42,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:42,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:42,973 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 [2023-11-26 10:46:42,973 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 48 transitions. cyclomatic complexity: 9 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:43,079 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 48 transitions. cyclomatic complexity: 9. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 82 states and 91 transitions. Complement of second has 14 states. [2023-11-26 10:46:43,080 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 [2023-11-26 10:46:43,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:43,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2023-11-26 10:46:43,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 3 letters. [2023-11-26 10:46:43,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:43,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2023-11-26 10:46:43,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:43,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 6 letters. [2023-11-26 10:46:43,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:43,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 91 transitions. [2023-11-26 10:46:43,085 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-26 10:46:43,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 63 states and 71 transitions. [2023-11-26 10:46:43,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2023-11-26 10:46:43,088 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2023-11-26 10:46:43,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 71 transitions. [2023-11-26 10:46:43,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:46:43,088 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 71 transitions. [2023-11-26 10:46:43,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 71 transitions. [2023-11-26 10:46:43,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 36. [2023-11-26 10:46:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-26 10:46:43,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2023-11-26 10:46:43,094 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 42 transitions. [2023-11-26 10:46:43,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:43,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:46:43,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:43,095 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:43,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:43,127 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2023-11-26 10:46:43,127 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 41 transitions. [2023-11-26 10:46:43,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-26 10:46:43,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 36 states and 40 transitions. [2023-11-26 10:46:43,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2023-11-26 10:46:43,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2023-11-26 10:46:43,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 40 transitions. [2023-11-26 10:46:43,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:43,131 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-11-26 10:46:43,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 40 transitions. [2023-11-26 10:46:43,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2023-11-26 10:46:43,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-26 10:46:43,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-11-26 10:46:43,135 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-11-26 10:46:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:43,136 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-11-26 10:46:43,137 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 10:46:43,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 36 transitions. [2023-11-26 10:46:43,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-26 10:46:43,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:46:43,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:46:43,138 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:43,138 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 10:46:43,139 INFO L748 eck$LassoCheckResult]: Stem: 769#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 767#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 761#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 762#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 766#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 768#$Ultimate##0 ~n := #in~n;~m := #in~m; 776#L18 assume !(~m < 0); 774#L21 assume 0 == ~m;#res := 0; 773#multFINAL assume true; 772#multEXIT >#48#return; 770#L36-1 main_~res1~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 756#L37 call main_#t~ret9#1 := mult(main_~n~0#1, main_~m~0#1);< 757#$Ultimate##0 [2023-11-26 10:46:43,139 INFO L750 eck$LassoCheckResult]: Loop: 757#$Ultimate##0 ~n := #in~n;~m := #in~m; 753#L18 assume !(~m < 0); 755#L21 assume !(0 == ~m); 754#L24 call #t~ret5 := mult(~n, ~m - 1);< 757#$Ultimate##0 [2023-11-26 10:46:43,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:43,139 INFO L85 PathProgramCache]: Analyzing trace with hash -560426956, now seen corresponding path program 2 times [2023-11-26 10:46:43,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:43,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000589097] [2023-11-26 10:46:43,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:43,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:43,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:43,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:43,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:43,161 INFO L85 PathProgramCache]: Analyzing trace with hash 929642, now seen corresponding path program 1 times [2023-11-26 10:46:43,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:43,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494029675] [2023-11-26 10:46:43,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:43,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:43,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:43,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:43,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:43,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1028821475, now seen corresponding path program 1 times [2023-11-26 10:46:43,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:43,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125960118] [2023-11-26 10:46:43,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:43,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:43,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:43,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:43,260 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:46:43,260 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:46:43,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:46:43,260 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:46:43,260 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:46:43,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:43,261 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:46:43,261 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:46:43,261 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2023-11-26 10:46:43,261 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:46:43,261 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:46:43,262 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,274 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,345 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:46:43,345 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:46:43,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:43,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:43,347 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:43,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:43,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:43,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-26 10:46:43,377 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:43,377 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:43,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:43,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:43,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:43,388 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:43,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:43,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:43,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-26 10:46:43,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:43,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:43,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:43,448 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:43,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:46:43,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:43,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-26 10:46:43,494 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:46:43,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:43,500 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:46:43,501 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:46:43,501 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:46:43,501 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:46:43,501 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:46:43,501 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:43,501 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:46:43,501 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:46:43,501 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2023-11-26 10:46:43,501 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:46:43,501 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:46:43,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:43,591 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:46:43,592 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:46:43,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:43,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:43,593 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:43,597 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 [2023-11-26 10:46:43,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-26 10:46:43,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:43,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:43,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:43,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:43,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:43,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:43,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:43,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:43,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:43,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:43,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:43,636 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:43,640 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 [2023-11-26 10:46:43,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-26 10:46:43,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:43,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:43,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:43,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:43,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:43,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:43,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:43,682 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:43,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:43,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:43,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:43,687 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:43,693 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 [2023-11-26 10:46:43,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-26 10:46:43,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:43,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:43,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:43,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:43,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:43,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:43,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:43,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:43,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:43,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:43,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:43,735 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:43,739 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 [2023-11-26 10:46:43,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:43,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:43,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:43,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:43,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:43,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:43,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:43,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-26 10:46:43,769 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:46:43,774 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 10:46:43,774 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 10:46:43,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:43,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:43,775 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:43,779 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:46:43,780 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:46:43,780 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:46:43,780 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2023-11-26 10:46:43,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-26 10:46:43,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:43,784 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:46:43,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:43,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:46:43,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:43,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 10:46:43,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:43,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:43,979 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-26 10:46:43,981 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 36 transitions. cyclomatic complexity: 6 Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:44,082 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 36 transitions. cyclomatic complexity: 6. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 42 states and 46 transitions. Complement of second has 17 states. [2023-11-26 10:46:44,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-26 10:46:44,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 10:46:44,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2023-11-26 10:46:44,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-26 10:46:44,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:44,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-26 10:46:44,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:44,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-26 10:46:44,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:44,085 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 46 transitions. [2023-11-26 10:46:44,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 10:46:44,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 16 states and 16 transitions. [2023-11-26 10:46:44,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-26 10:46:44,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-26 10:46:44,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 16 transitions. [2023-11-26 10:46:44,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:44,087 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-11-26 10:46:44,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 16 transitions. [2023-11-26 10:46:44,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 9. [2023-11-26 10:46:44,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2023-11-26 10:46:44,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-26 10:46:44,088 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-26 10:46:44,088 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-26 10:46:44,088 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-26 10:46:44,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 9 transitions. [2023-11-26 10:46:44,088 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 10:46:44,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:46:44,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:46:44,089 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-26 10:46:44,089 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 10:46:44,089 INFO L748 eck$LassoCheckResult]: Stem: 922#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 923#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 924#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 925#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 920#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 921#$Ultimate##0 [2023-11-26 10:46:44,089 INFO L750 eck$LassoCheckResult]: Loop: 921#$Ultimate##0 ~n := #in~n;~m := #in~m; 917#L18 assume !(~m < 0); 919#L21 assume !(0 == ~m); 918#L24 call #t~ret5 := mult(~n, ~m - 1);< 921#$Ultimate##0 [2023-11-26 10:46:44,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:44,090 INFO L85 PathProgramCache]: Analyzing trace with hash 42056135, now seen corresponding path program 2 times [2023-11-26 10:46:44,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:44,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111645638] [2023-11-26 10:46:44,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:44,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:44,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:44,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:44,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:44,114 INFO L85 PathProgramCache]: Analyzing trace with hash 929642, now seen corresponding path program 2 times [2023-11-26 10:46:44,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:44,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077878830] [2023-11-26 10:46:44,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:44,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:44,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:44,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:44,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:44,123 INFO L85 PathProgramCache]: Analyzing trace with hash 334599728, now seen corresponding path program 2 times [2023-11-26 10:46:44,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:44,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267260966] [2023-11-26 10:46:44,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:44,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:44,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:46:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:46:44,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:46:44,210 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:46:44,210 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:46:44,210 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:46:44,210 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:46:44,210 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:46:44,211 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:44,211 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:46:44,211 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:46:44,211 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2023-11-26 10:46:44,211 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:46:44,211 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:46:44,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,289 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:46:44,289 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:46:44,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:44,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:44,290 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:44,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:44,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:44,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-26 10:46:44,316 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:44,316 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:44,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-11-26 10:46:44,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:44,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:44,320 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:44,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-26 10:46:44,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:44,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:44,335 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:46:44,335 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:46:44,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-26 10:46:44,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:44,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:44,339 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:44,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-26 10:46:44,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:46:44,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:44,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-26 10:46:44,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:44,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:44,356 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:44,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-26 10:46:44,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:46:44,359 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:46:44,379 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:46:44,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:44,382 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:46:44,382 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:46:44,382 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:46:44,382 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:46:44,382 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:46:44,382 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:44,382 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:46:44,383 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:46:44,383 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2023-11-26 10:46:44,383 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:46:44,383 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:46:44,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-26 10:46:44,417 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 10:46:44,477 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:46:44,477 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:46:44,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:44,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:44,479 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:44,487 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 [2023-11-26 10:46:44,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-26 10:46:44,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:44,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:44,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:44,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:44,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:44,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:44,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:44,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:44,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:44,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:44,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:44,505 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:44,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-26 10:46:44,508 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 [2023-11-26 10:46:44,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:44,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:44,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:44,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:44,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:44,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:44,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:44,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:46:44,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:44,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:44,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:44,541 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:44,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-26 10:46:44,543 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 [2023-11-26 10:46:44,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:46:44,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:46:44,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:46:44,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:46:44,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:46:44,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:46:44,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:46:44,558 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:46:44,561 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 10:46:44,561 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 10:46:44,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:46:44,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:44,562 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:44,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-26 10:46:44,565 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:46:44,565 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:46:44,565 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:46:44,565 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2023-11-26 10:46:44,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-11-26 10:46:44,568 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:46:44,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:44,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:46:44,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:44,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 10:46:44,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:44,691 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-26 10:46:44,692 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 9 transitions. cyclomatic complexity: 1 Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-26 10:46:44,755 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 9 transitions. cyclomatic complexity: 1. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 19 states and 19 transitions. Complement of second has 15 states. [2023-11-26 10:46:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-26 10:46:44,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-26 10:46:44,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2023-11-26 10:46:44,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-26 10:46:44,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:44,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-26 10:46:44,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:44,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2023-11-26 10:46:44,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:46:44,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 19 transitions. [2023-11-26 10:46:44,769 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 10:46:44,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2023-11-26 10:46:44,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 10:46:44,769 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 10:46:44,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 10:46:44,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:44,769 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:46:44,769 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:46:44,769 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:46:44,770 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-26 10:46:44,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 10:46:44,770 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 10:46:44,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 10:46:44,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 10:46:44 BoogieIcfgContainer [2023-11-26 10:46:44,778 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 10:46:44,778 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:46:44,779 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:46:44,779 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:46:44,779 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:38" (3/4) ... [2023-11-26 10:46:44,781 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:46:44,782 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:46:44,783 INFO L158 Benchmark]: Toolchain (without parser) took 7441.21ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 75.6MB in the beginning and 93.3MB in the end (delta: -17.7MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-11-26 10:46:44,784 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:46:44,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.95ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 85.3MB in the end (delta: -10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:46:44,784 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.61ms. Allocated memory is still 113.2MB. Free memory was 85.3MB in the beginning and 83.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:46:44,785 INFO L158 Benchmark]: Boogie Preprocessor took 48.63ms. Allocated memory is still 113.2MB. Free memory was 83.7MB in the beginning and 82.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:46:44,785 INFO L158 Benchmark]: RCFGBuilder took 360.07ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 72.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 10:46:44,786 INFO L158 Benchmark]: BuchiAutomizer took 6583.54ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 72.3MB in the beginning and 94.3MB in the end (delta: -22.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2023-11-26 10:46:44,786 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 144.7MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:46:44,788 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.95ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 85.3MB in the end (delta: -10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.61ms. Allocated memory is still 113.2MB. Free memory was 85.3MB in the beginning and 83.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.63ms. Allocated memory is still 113.2MB. Free memory was 83.7MB in the beginning and 82.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 360.07ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 72.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6583.54ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 72.3MB in the beginning and 94.3MB in the end (delta: -22.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 144.7MB. Free memory is still 93.3MB. 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 8 terminating modules (3 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (-1 * \old(m)) and consists of 4 locations. One deterministic module has affine ranking function (-1 * \old(m)) and consists of 5 locations. One deterministic module has affine ranking function (-1 * \old(m)) and consists of 5 locations. One deterministic module has affine ranking function \old(m) and consists of 6 locations. One deterministic module has affine ranking function \old(m) and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.5s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 4.5s. Construction of modules took 0.2s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 53 StatesRemovedByMinimization, 6 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 [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 150 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 252 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 125 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 165 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 127 mSDtfsCounter, 165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf94 smp86 dnf100 smp100 tf113 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 64ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-26 10:46:44,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:45,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1010e61b-0cfd-4939-b23a-9ea3129da09a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE