./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya --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 64bit --witnessprinter.graph.data.programhash 7f247e4473503f47ee3194e296d6b905e51586799395e11124f119da43a61cc2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:35:39,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:35:39,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-28 20:35:39,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:35:39,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:35:39,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:35:39,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:35:39,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:35:39,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:35:39,349 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:35:39,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:35:39,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:35:39,351 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:35:39,351 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-28 20:35:39,352 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-28 20:35:39,352 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-28 20:35:39,353 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-28 20:35:39,353 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-28 20:35:39,354 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-28 20:35:39,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:35:39,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-28 20:35:39,360 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:35:39,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:35:39,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-28 20:35:39,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-28 20:35:39,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-28 20:35:39,362 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:35:39,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:35:39,363 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-28 20:35:39,364 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:35:39,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:35:39,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:35:39,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:35:39,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:35:39,366 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-28 20:35:39,366 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_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f247e4473503f47ee3194e296d6b905e51586799395e11124f119da43a61cc2 [2023-11-28 20:35:39,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:35:39,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:35:39,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:35:39,648 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:35:39,649 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:35:39,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-bwb/or-01.c [2023-11-28 20:35:42,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:35:42,911 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:35:42,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/sv-benchmarks/c/termination-bwb/or-01.c [2023-11-28 20:35:42,919 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/data/618e9d419/9ff6e0f35493416c812ece1df01a95f9/FLAGf6ad9acc5 [2023-11-28 20:35:42,933 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/data/618e9d419/9ff6e0f35493416c812ece1df01a95f9 [2023-11-28 20:35:42,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:35:42,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:35:42,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:35:42,939 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:35:42,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:35:42,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:35:42" (1/1) ... [2023-11-28 20:35:42,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33cacde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:42, skipping insertion in model container [2023-11-28 20:35:42,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:35:42" (1/1) ... [2023-11-28 20:35:42,972 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:35:43,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:35:43,119 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:35:43,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:35:43,145 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:35:43,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43 WrapperNode [2023-11-28 20:35:43,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:35:43,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:35:43,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:35:43,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:35:43,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,156 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,171 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-28 20:35:43,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:35:43,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:35:43,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:35:43,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:35:43,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,181 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,185 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-28 20:35:43,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,187 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:35:43,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:35:43,193 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:35:43,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:35:43,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (1/1) ... [2023-11-28 20:35:43,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:43,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:43,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:43,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-28 20:35:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:35:43,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:35:43,321 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:35:43,323 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:35:43,412 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:35:43,422 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:35:43,423 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 20:35:43,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:35:43 BoogieIcfgContainer [2023-11-28 20:35:43,425 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:35:43,426 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-28 20:35:43,426 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-28 20:35:43,431 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-28 20:35:43,432 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 20:35:43,432 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:35:42" (1/3) ... [2023-11-28 20:35:43,433 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7983774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:35:43, skipping insertion in model container [2023-11-28 20:35:43,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 20:35:43,433 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:35:43" (2/3) ... [2023-11-28 20:35:43,434 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7983774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:35:43, skipping insertion in model container [2023-11-28 20:35:43,434 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 20:35:43,434 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:35:43" (3/3) ... [2023-11-28 20:35:43,436 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-01.c [2023-11-28 20:35:43,501 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-28 20:35:43,502 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-28 20:35:43,502 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-28 20:35:43,502 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-28 20:35:43,502 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-28 20:35:43,502 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-28 20:35:43,502 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-28 20:35:43,503 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-28 20:35:43,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:43,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:43,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:35:43,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:35:43,534 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-28 20:35:43,534 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:35:43,534 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-28 20:35:43,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:43,536 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:43,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:35:43,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:35:43,537 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-28 20:35:43,537 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:35:43,544 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L20-2true [2023-11-28 20:35:43,545 INFO L750 eck$LassoCheckResult]: Loop: 5#L20-2true assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 3#L22true assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 8#L22-4true main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 5#L20-2true [2023-11-28 20:35:43,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:43,550 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-28 20:35:43,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:43,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790911514] [2023-11-28 20:35:43,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:43,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:43,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:35:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:43,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:35:43,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:43,656 INFO L85 PathProgramCache]: Analyzing trace with hash 40819, now seen corresponding path program 1 times [2023-11-28 20:35:43,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:43,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999825413] [2023-11-28 20:35:43,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:43,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:43,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:35:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:43,685 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:35:43,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:43,687 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2023-11-28 20:35:43,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:43,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900216236] [2023-11-28 20:35:43,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:43,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:43,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:43,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:43,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900216236] [2023-11-28 20:35:43,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900216236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:43,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:43,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:35:43,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960816772] [2023-11-28 20:35:43,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:43,954 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:35:43,954 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:35:43,955 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:35:43,955 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:35:43,955 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:35:43,955 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:43,955 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:35:43,956 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:35:43,956 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration1_Loop [2023-11-28 20:35:43,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:35:43,956 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:35:43,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:43,983 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:44,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:44,109 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:35:44,110 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:35:44,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:44,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:44,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:44,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-28 20:35:44,119 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:35:44,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:44,158 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:35:44,158 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:35:44,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:35:44,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:44,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:44,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:44,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-28 20:35:44,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:35:44,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:44,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-28 20:35:44,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:44,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:44,200 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:44,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-28 20:35:44,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:35:44,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:44,564 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:35:44,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-28 20:35:44,570 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:35:44,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:35:44,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:35:44,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:35:44,571 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:35:44,571 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:44,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:35:44,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:35:44,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration1_Loop [2023-11-28 20:35:44,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:35:44,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:35:44,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:44,580 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:44,601 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:44,701 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:35:44,706 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:35:44,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:44,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:44,709 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:44,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-28 20:35:44,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:35:44,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:44,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:44,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:44,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:35:44,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:35:44,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:35:44,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:44,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:44,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-28 20:35:44,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:44,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:44,739 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:44,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-28 20:35:44,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:35:44,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:44,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:44,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:44,757 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:35:44,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:35:44,763 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-28 20:35:44,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:44,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:44,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-28 20:35:44,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:44,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:44,780 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:44,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-28 20:35:44,785 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 [2023-11-28 20:35:44,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:44,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:44,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:44,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:35:44,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:35:44,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:35:44,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:44,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:44,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-28 20:35:44,809 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-28 20:35:44,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:44,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:44,811 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:44,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-28 20:35:44,817 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 [2023-11-28 20:35:44,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:44,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:44,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:44,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:35:44,834 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-28 20:35:44,835 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-28 20:35:44,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:44,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:44,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-28 20:35:44,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:44,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:44,845 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:44,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-28 20:35:44,848 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 [2023-11-28 20:35:44,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:44,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:44,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:44,862 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:35:44,862 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-28 20:35:44,870 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:35:44,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:44,882 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:35:44,912 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-28 20:35:44,912 INFO L444 ModelExtractionUtils]: 5 out of 9 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-28 20:35:44,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:44,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:44,941 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:44,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-28 20:35:44,943 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:35:44,944 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-28 20:35:44,944 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:35:44,944 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-28 20:35:44,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-28 20:35:44,954 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-28 20:35:44,961 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-28 20:35:44,962 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0) could not be translated [2023-11-28 20:35:44,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:45,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:35:45,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:45,018 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 20:35:45,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:45,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:45,265 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 [2023-11-28 20:35:45,267 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:45,418 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 42 transitions. Complement of second has 12 states. [2023-11-28 20:35:45,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-28 20:35:45,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:45,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 14 transitions. [2023-11-28 20:35:45,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-28 20:35:45,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:45,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-28 20:35:45,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:45,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-28 20:35:45,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:45,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 42 transitions. [2023-11-28 20:35:45,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:45,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 16 states and 21 transitions. [2023-11-28 20:35:45,436 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-28 20:35:45,437 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-28 20:35:45,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2023-11-28 20:35:45,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:35:45,438 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-28 20:35:45,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2023-11-28 20:35:45,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2023-11-28 20:35:45,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:45,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-28 20:35:45,459 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-28 20:35:45,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:45,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:35:45,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:35:45,462 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:45,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:35:45,488 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2023-11-28 20:35:45,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2023-11-28 20:35:45,489 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:45,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2023-11-28 20:35:45,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-28 20:35:45,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-28 20:35:45,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2023-11-28 20:35:45,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:35:45,490 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2023-11-28 20:35:45,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2023-11-28 20:35:45,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2023-11-28 20:35:45,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:45,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2023-11-28 20:35:45,492 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-28 20:35:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:35:45,494 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-28 20:35:45,494 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-28 20:35:45,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2023-11-28 20:35:45,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:45,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:35:45,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:35:45,496 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-28 20:35:45,497 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:35:45,497 INFO L748 eck$LassoCheckResult]: Stem: 125#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 126#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 123#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 121#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 122#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 127#L22-4 [2023-11-28 20:35:45,497 INFO L750 eck$LassoCheckResult]: Loop: 127#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 128#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 131#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 127#L22-4 [2023-11-28 20:35:45,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:45,498 INFO L85 PathProgramCache]: Analyzing trace with hash 28699821, now seen corresponding path program 1 times [2023-11-28 20:35:45,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:45,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697979728] [2023-11-28 20:35:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:45,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:45,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:35:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:45,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:35:45,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 2 times [2023-11-28 20:35:45,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:45,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235914491] [2023-11-28 20:35:45,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:45,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:45,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:35:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:45,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:35:45,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:45,534 INFO L85 PathProgramCache]: Analyzing trace with hash 297897965, now seen corresponding path program 1 times [2023-11-28 20:35:45,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:45,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624799151] [2023-11-28 20:35:45,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:45,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:45,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:45,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:45,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624799151] [2023-11-28 20:35:45,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624799151] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:35:45,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979770050] [2023-11-28 20:35:45,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:45,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:35:45,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:45,700 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:35:45,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 20:35:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:45,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 20:35:45,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:45,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:45,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:35:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:46,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979770050] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:35:46,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:35:46,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 15 [2023-11-28 20:35:46,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002379532] [2023-11-28 20:35:46,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:35:46,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-28 20:35:46,065 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:35:46,065 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:35:46,065 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:35:46,065 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:35:46,065 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:35:46,065 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:46,066 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:35:46,066 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:35:46,066 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration2_Loop [2023-11-28 20:35:46,066 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:35:46,066 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:35:46,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:46,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:46,191 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:35:46,191 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:35:46,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:46,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:46,193 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:46,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-28 20:35:46,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:35:46,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:46,213 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:35:46,213 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:35:46,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-28 20:35:46,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:46,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:46,221 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:46,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-28 20:35:46,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:35:46,229 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:46,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-28 20:35:46,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:46,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:46,253 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:46,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-28 20:35:46,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:35:46,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:47,017 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:35:47,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-28 20:35:47,023 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:35:47,023 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:35:47,023 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:35:47,023 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:35:47,023 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:35:47,023 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:47,023 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:35:47,024 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:35:47,024 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration2_Loop [2023-11-28 20:35:47,024 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:35:47,024 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:35:47,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:47,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:47,150 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:35:47,150 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:35:47,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:47,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:47,152 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:47,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-28 20:35:47,156 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 [2023-11-28 20:35:47,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:47,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:47,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:47,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:35:47,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:35:47,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:35:47,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:47,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:47,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-28 20:35:47,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:47,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:47,176 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:47,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-28 20:35:47,180 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 [2023-11-28 20:35:47,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:47,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:47,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:47,192 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:35:47,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:35:47,198 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-28 20:35:47,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:47,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:47,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-28 20:35:47,210 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-28 20:35:47,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:47,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:47,212 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:47,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-28 20:35:47,216 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 [2023-11-28 20:35:47,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:47,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:47,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:47,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:35:47,229 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-28 20:35:47,230 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-28 20:35:47,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:47,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:47,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-28 20:35:47,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:47,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:47,241 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:47,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-28 20:35:47,244 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 [2023-11-28 20:35:47,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:47,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:47,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:47,258 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:35:47,258 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-28 20:35:47,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:35:47,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:47,274 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:35:47,282 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-28 20:35:47,282 INFO L444 ModelExtractionUtils]: 6 out of 11 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-28 20:35:47,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:47,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:47,284 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:47,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-28 20:35:47,286 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:35:47,286 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-28 20:35:47,286 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:35:47,287 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_#t~nondet2#1 Supporting invariants [] [2023-11-28 20:35:47,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-28 20:35:47,292 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-28 20:35:47,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-28 20:35:47,293 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated [2023-11-28 20:35:47,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:47,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:35:47,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:47,329 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 20:35:47,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:47,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:47,489 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 [2023-11-28 20:35:47,489 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:47,530 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 33 transitions. Complement of second has 7 states. [2023-11-28 20:35:47,531 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 [2023-11-28 20:35:47,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-28 20:35:47,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-28 20:35:47,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:47,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 3 letters. [2023-11-28 20:35:47,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:47,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 6 letters. [2023-11-28 20:35:47,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:47,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-28 20:35:47,535 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-28 20:35:47,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 24 states and 32 transitions. [2023-11-28 20:35:47,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-28 20:35:47,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-11-28 20:35:47,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 32 transitions. [2023-11-28 20:35:47,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:35:47,536 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 32 transitions. [2023-11-28 20:35:47,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 32 transitions. [2023-11-28 20:35:47,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-11-28 20:35:47,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:47,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2023-11-28 20:35:47,539 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 31 transitions. [2023-11-28 20:35:47,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:47,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-28 20:35:47,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2023-11-28 20:35:47,540 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:47,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:35:47,761 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-11-28 20:35:47,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2023-11-28 20:35:47,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-28 20:35:47,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 29 states and 34 transitions. [2023-11-28 20:35:47,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-28 20:35:47,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-28 20:35:47,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 34 transitions. [2023-11-28 20:35:47,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:35:47,764 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-28 20:35:47,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 34 transitions. [2023-11-28 20:35:47,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2023-11-28 20:35:47,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.2) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:47,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2023-11-28 20:35:47,767 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-11-28 20:35:47,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 20:35:47,769 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-11-28 20:35:47,769 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-28 20:35:47,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2023-11-28 20:35:47,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:47,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:35:47,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:35:47,770 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1] [2023-11-28 20:35:47,770 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-28 20:35:47,771 INFO L748 eck$LassoCheckResult]: Stem: 340#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 341#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 345#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 348#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 347#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 346#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 338#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 334#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 335#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 342#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 343#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 352#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 349#L22-2 [2023-11-28 20:35:47,771 INFO L750 eck$LassoCheckResult]: Loop: 349#L22-2 assume 0 == main_~a~0#1;main_#t~nondet2#1 := main_~b~0#1; 350#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 353#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 351#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 349#L22-2 [2023-11-28 20:35:47,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:47,771 INFO L85 PathProgramCache]: Analyzing trace with hash 898884598, now seen corresponding path program 1 times [2023-11-28 20:35:47,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:47,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966352688] [2023-11-28 20:35:47,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:47,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:47,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:35:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:47,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:35:47,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:47,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1512010, now seen corresponding path program 1 times [2023-11-28 20:35:47,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:47,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912249790] [2023-11-28 20:35:47,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:47,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:47,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:35:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:47,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:35:47,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:47,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1065487425, now seen corresponding path program 1 times [2023-11-28 20:35:47,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:47,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778138707] [2023-11-28 20:35:47,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:47,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:47,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:47,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778138707] [2023-11-28 20:35:47,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778138707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:35:47,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:35:47,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:35:47,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280771177] [2023-11-28 20:35:47,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:35:47,931 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:35:47,931 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:35:47,931 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:35:47,931 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:35:47,931 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:35:47,932 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:47,932 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:35:47,932 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:35:47,932 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration3_Loop [2023-11-28 20:35:47,932 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:35:47,932 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:35:47,933 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:47,940 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:47,942 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:47,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:48,062 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:35:48,062 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:35:48,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:48,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:48,064 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:48,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-28 20:35:48,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:35:48,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:48,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-28 20:35:48,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:48,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:48,089 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:48,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-28 20:35:48,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:35:48,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:48,107 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:35:48,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-28 20:35:48,110 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:35:48,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:35:48,111 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:35:48,111 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:35:48,111 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:35:48,111 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:48,111 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:35:48,111 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:35:48,111 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration3_Loop [2023-11-28 20:35:48,111 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:35:48,111 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:35:48,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:48,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:48,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:48,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:48,224 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:35:48,224 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:35:48,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:48,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:48,225 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:48,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-28 20:35:48,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:35:48,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:48,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:48,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:48,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:35:48,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:35:48,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:35:48,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:48,246 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:35:48,249 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-28 20:35:48,249 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-28 20:35:48,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:48,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:48,250 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:48,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-28 20:35:48,256 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:35:48,257 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-28 20:35:48,257 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:35:48,257 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 1 Supporting invariants [] [2023-11-28 20:35:48,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-28 20:35:48,261 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-28 20:35:48,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:48,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:35:48,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:48,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:35:48,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:48,356 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 [2023-11-28 20:35:48,356 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:48,390 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 50 states and 62 transitions. Complement of second has 6 states. [2023-11-28 20:35:48,390 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 [2023-11-28 20:35:48,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:48,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-28 20:35:48,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-28 20:35:48,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:48,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-28 20:35:48,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:48,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-28 20:35:48,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:48,393 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 62 transitions. [2023-11-28 20:35:48,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:48,395 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 41 states and 51 transitions. [2023-11-28 20:35:48,395 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2023-11-28 20:35:48,396 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-28 20:35:48,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2023-11-28 20:35:48,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:35:48,396 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2023-11-28 20:35:48,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2023-11-28 20:35:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2023-11-28 20:35:48,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 35 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:48,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2023-11-28 20:35:48,400 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 46 transitions. [2023-11-28 20:35:48,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:48,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:35:48,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:35:48,401 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:48,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:35:48,423 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-11-28 20:35:48,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 33 transitions. [2023-11-28 20:35:48,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:48,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 16 states and 17 transitions. [2023-11-28 20:35:48,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-28 20:35:48,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-28 20:35:48,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2023-11-28 20:35:48,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:48,426 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-28 20:35:48,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2023-11-28 20:35:48,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-28 20:35:48,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:48,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2023-11-28 20:35:48,427 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-28 20:35:48,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:35:48,429 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-28 20:35:48,429 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-28 20:35:48,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 17 transitions. [2023-11-28 20:35:48,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:48,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:35:48,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:35:48,430 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1] [2023-11-28 20:35:48,430 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-28 20:35:48,430 INFO L748 eck$LassoCheckResult]: Stem: 548#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 549#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 547#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 545#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 546#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 550#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 551#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 560#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 559#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 558#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 557#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 556#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 553#L22-2 [2023-11-28 20:35:48,430 INFO L750 eck$LassoCheckResult]: Loop: 553#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 554#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 555#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 552#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 553#L22-2 [2023-11-28 20:35:48,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:48,431 INFO L85 PathProgramCache]: Analyzing trace with hash 898884598, now seen corresponding path program 2 times [2023-11-28 20:35:48,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:48,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509550126] [2023-11-28 20:35:48,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:48,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:48,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:35:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:48,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:35:48,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:48,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 1 times [2023-11-28 20:35:48,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:48,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650839457] [2023-11-28 20:35:48,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:48,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:48,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:35:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:48,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:35:48,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:48,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1065427843, now seen corresponding path program 3 times [2023-11-28 20:35:48,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:48,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507532151] [2023-11-28 20:35:48,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:48,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:48,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-28 20:35:48,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-28 20:35:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:48,494 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:35:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:48,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:35:48,720 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:35:48,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:35:48,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:35:48,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:35:48,720 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:35:48,720 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:48,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:35:48,720 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:35:48,720 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Loop [2023-11-28 20:35:48,720 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:35:48,720 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:35:48,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:48,781 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:48,856 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-28 20:35:49,315 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:35:49,315 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:35:49,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:49,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:49,317 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:49,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-28 20:35:49,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:35:49,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:49,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-28 20:35:49,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:49,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:49,350 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:49,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-28 20:35:49,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:35:49,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:49,392 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:35:49,392 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 0, 1] Nus: [1, 0] [2023-11-28 20:35:49,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-28 20:35:49,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:49,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:49,398 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:49,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-28 20:35:49,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:35:49,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:49,415 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:35:49,416 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:35:49,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-28 20:35:49,569 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:35:49,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:35:49,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:35:49,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:35:49,570 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:35:49,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:49,570 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:35:49,570 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:35:49,570 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Lasso [2023-11-28 20:35:49,570 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:35:49,570 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:35:49,572 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:49,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:49,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:49,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:49,718 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-28 20:35:50,157 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:35:50,157 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:35:50,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:50,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:50,159 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:50,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-28 20:35:50,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:35:50,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:50,174 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:35:50,174 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:35:50,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-28 20:35:50,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:50,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:50,178 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:50,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-28 20:35:50,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:35:50,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:50,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-28 20:35:50,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:50,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:50,203 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:50,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-28 20:35:50,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:35:50,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:50,286 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:35:50,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-28 20:35:50,290 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:35:50,290 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:35:50,290 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:35:50,290 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:35:50,290 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:35:50,290 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:50,290 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:35:50,290 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:35:50,290 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Lasso [2023-11-28 20:35:50,290 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:35:50,290 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:35:50,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:50,294 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:50,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:50,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:50,451 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-28 20:35:50,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:35:50,955 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:35:50,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:50,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:50,956 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:50,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-28 20:35:50,959 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 [2023-11-28 20:35:50,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:50,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:50,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:50,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:35:50,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:35:50,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:35:50,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:50,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:50,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-28 20:35:50,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:50,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:50,979 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:50,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-28 20:35:50,985 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 [2023-11-28 20:35:50,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:50,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:50,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:50,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:35:50,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:35:50,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:35:50,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:51,001 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:51,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-28 20:35:51,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:51,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:51,005 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:51,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-28 20:35:51,008 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 [2023-11-28 20:35:51,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:51,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:51,021 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2023-11-28 20:35:51,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:35:51,151 INFO L401 nArgumentSynthesizer]: We have 126 Motzkin's Theorem applications. [2023-11-28 20:35:51,152 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2023-11-28 20:35:53,437 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:35:55,157 INFO L443 ModelExtractionUtils]: Simplification made 31 calls to the SMT solver. [2023-11-28 20:35:55,158 INFO L444 ModelExtractionUtils]: 36 out of 76 variables were initially zero. Simplification set additionally 25 variables to zero. [2023-11-28 20:35:55,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:55,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:55,167 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:55,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-28 20:35:55,168 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:35:55,198 INFO L438 nArgumentSynthesizer]: Removed 11 redundant supporting invariants from a total of 14. [2023-11-28 20:35:55,198 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:35:55,198 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~b~0#1 - 1*ULTIMATE.start_main_~a~0#1 + 1 >= 0, 1*ULTIMATE.start_main_~a~0#1 >= 0, 1*ULTIMATE.start_main_~x~0#1 >= 0] [2023-11-28 20:35:55,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-28 20:35:55,221 INFO L156 tatePredicateManager]: 1 out of 3 supporting invariants were superfluous and have been removed [2023-11-28 20:35:55,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:55,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 20:35:55,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:55,427 WARN L260 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-28 20:35:55,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:55,530 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 4 loop predicates [2023-11-28 20:35:55,530 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 17 transitions. cyclomatic complexity: 2 Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:55,655 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 17 transitions. cyclomatic complexity: 2. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 33 transitions. Complement of second has 11 states. [2023-11-28 20:35:55,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-28 20:35:55,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:55,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-11-28 20:35:55,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-28 20:35:55,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:55,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-28 20:35:55,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:55,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-28 20:35:55,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:55,659 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 33 transitions. [2023-11-28 20:35:55,660 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:55,661 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 21 states and 23 transitions. [2023-11-28 20:35:55,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-28 20:35:55,661 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-28 20:35:55,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 23 transitions. [2023-11-28 20:35:55,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:35:55,662 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-11-28 20:35:55,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 23 transitions. [2023-11-28 20:35:55,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2023-11-28 20:35:55,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.1) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:55,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-11-28 20:35:55,665 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-28 20:35:55,665 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-28 20:35:55,665 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-28 20:35:55,665 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 22 transitions. [2023-11-28 20:35:55,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:55,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:35:55,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:35:55,666 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 1, 1, 1] [2023-11-28 20:35:55,667 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:35:55,667 INFO L748 eck$LassoCheckResult]: Stem: 702#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 703#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 699#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 695#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 696#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 707#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 714#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 697#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 698#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 706#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 700#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 701#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 711#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 713#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 712#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 710#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 704#L22-4 [2023-11-28 20:35:55,667 INFO L750 eck$LassoCheckResult]: Loop: 704#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 705#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 709#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 704#L22-4 [2023-11-28 20:35:55,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:55,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1065427845, now seen corresponding path program 2 times [2023-11-28 20:35:55,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:55,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628714920] [2023-11-28 20:35:55,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:55,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:55,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:55,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628714920] [2023-11-28 20:35:55,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628714920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:35:55,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784476767] [2023-11-28 20:35:55,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:35:55,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:35:55,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:55,945 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:35:55,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-28 20:35:55,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:35:55,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:35:55,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 20:35:55,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:56,172 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:56,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:35:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:56,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784476767] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:35:56,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:35:56,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 12] total 29 [2023-11-28 20:35:56,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828225156] [2023-11-28 20:35:56,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:35:56,512 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-28 20:35:56,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:56,513 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 3 times [2023-11-28 20:35:56,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:56,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793430262] [2023-11-28 20:35:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:56,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:56,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:35:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:35:56,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:35:56,571 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:35:56,571 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:35:56,571 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:35:56,572 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:35:56,572 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:35:56,572 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:56,572 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:35:56,572 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:35:56,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration5_Loop [2023-11-28 20:35:56,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:35:56,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:35:56,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:56,576 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:56,689 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:35:56,689 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:35:56,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:56,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:56,691 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:56,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-28 20:35:56,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:35:56,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:56,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-28 20:35:56,718 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:35:56,718 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:35:56,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-28 20:35:56,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:56,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:56,722 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:56,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-28 20:35:56,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:35:56,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:56,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-28 20:35:56,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:56,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:56,751 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:56,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-28 20:35:56,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:35:56,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:35:57,464 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:35:57,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-11-28 20:35:57,469 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:35:57,469 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:35:57,470 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:35:57,470 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:35:57,470 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:35:57,470 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:57,470 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:35:57,470 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:35:57,470 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration5_Loop [2023-11-28 20:35:57,470 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:35:57,470 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:35:57,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:57,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:35:57,577 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:35:57,578 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:35:57,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:57,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:57,579 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:57,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-28 20:35:57,581 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 [2023-11-28 20:35:57,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:57,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:57,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:57,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:35:57,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:35:57,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:35:57,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:57,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:57,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-11-28 20:35:57,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:57,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:57,599 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:57,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-28 20:35:57,601 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 [2023-11-28 20:35:57,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:57,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:57,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:57,614 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:35:57,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:35:57,618 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-28 20:35:57,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:57,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:57,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-11-28 20:35:57,628 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-28 20:35:57,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:57,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:57,629 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:57,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-28 20:35:57,632 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 [2023-11-28 20:35:57,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:57,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:57,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:57,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:35:57,644 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-28 20:35:57,645 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-28 20:35:57,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:57,647 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:35:57,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-28 20:35:57,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:57,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:57,651 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:57,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-28 20:35:57,654 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 [2023-11-28 20:35:57,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:35:57,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:35:57,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:35:57,667 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:35:57,667 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-28 20:35:57,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:35:57,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:35:57,682 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:35:57,692 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-28 20:35:57,692 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-28 20:35:57,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:35:57,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:57,693 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:35:57,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-28 20:35:57,695 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:35:57,696 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-28 20:35:57,696 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:35:57,696 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = -1*ULTIMATE.start_main_#t~nondet2#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-28 20:35:57,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-11-28 20:35:57,700 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-28 20:35:57,701 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-28 20:35:57,701 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated [2023-11-28 20:35:57,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:57,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:35:57,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:57,751 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 20:35:57,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:57,896 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 [2023-11-28 20:35:57,896 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:57,932 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 34 transitions. Complement of second has 7 states. [2023-11-28 20:35:57,933 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 [2023-11-28 20:35:57,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-28 20:35:57,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 16 letters. Loop has 3 letters. [2023-11-28 20:35:57,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:57,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 19 letters. Loop has 3 letters. [2023-11-28 20:35:57,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:57,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 16 letters. Loop has 6 letters. [2023-11-28 20:35:57,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:35:57,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 34 transitions. [2023-11-28 20:35:57,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:57,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 28 states and 32 transitions. [2023-11-28 20:35:57,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-28 20:35:57,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-28 20:35:57,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2023-11-28 20:35:57,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:35:57,938 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-11-28 20:35:57,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2023-11-28 20:35:57,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2023-11-28 20:35:57,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:57,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-11-28 20:35:57,941 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-11-28 20:35:57,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:35:57,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-28 20:35:57,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2023-11-28 20:35:57,943 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 30 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 30 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:58,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:35:58,198 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2023-11-28 20:35:58,198 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 47 transitions. [2023-11-28 20:35:58,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-28 20:35:58,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 47 transitions. [2023-11-28 20:35:58,200 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-28 20:35:58,200 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-28 20:35:58,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 47 transitions. [2023-11-28 20:35:58,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:35:58,201 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 47 transitions. [2023-11-28 20:35:58,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 47 transitions. [2023-11-28 20:35:58,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2023-11-28 20:35:58,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:35:58,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2023-11-28 20:35:58,205 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 46 transitions. [2023-11-28 20:35:58,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 20:35:58,206 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 46 transitions. [2023-11-28 20:35:58,206 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-28 20:35:58,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 46 transitions. [2023-11-28 20:35:58,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:35:58,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:35:58,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:35:58,209 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 8, 8, 7, 1, 1, 1] [2023-11-28 20:35:58,209 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-28 20:35:58,209 INFO L748 eck$LassoCheckResult]: Stem: 1035#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1036#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1032#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1028#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1029#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1040#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1068#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1030#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1031#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1039#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1033#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1034#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1065#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1064#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1063#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1062#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1061#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1060#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1059#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1058#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1057#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1056#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1055#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1054#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1053#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1052#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1051#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1050#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1047#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1049#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1048#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1046#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 1045#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1043#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1069#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1066#L22-2 [2023-11-28 20:35:58,210 INFO L750 eck$LassoCheckResult]: Loop: 1066#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1037#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1038#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1067#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1066#L22-2 [2023-11-28 20:35:58,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:35:58,210 INFO L85 PathProgramCache]: Analyzing trace with hash -213061435, now seen corresponding path program 3 times [2023-11-28 20:35:58,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:35:58,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135647253] [2023-11-28 20:35:58,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:35:58,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:35:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:35:58,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-28 20:35:58,942 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:58,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:35:58,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135647253] [2023-11-28 20:35:58,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135647253] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:35:58,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872516882] [2023-11-28 20:35:58,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:35:58,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:35:58,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:35:58,944 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:35:58,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-28 20:35:59,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2023-11-28 20:35:59,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:35:59,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-28 20:35:59,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:35:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:35:59,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:36:00,298 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:00,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872516882] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:36:00,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:36:00,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 25] total 58 [2023-11-28 20:36:00,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178371455] [2023-11-28 20:36:00,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:36:00,299 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-28 20:36:00,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:00,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 2 times [2023-11-28 20:36:00,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:00,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861430231] [2023-11-28 20:36:00,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:00,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:00,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:00,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:00,451 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:00,451 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:00,451 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:00,451 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:00,451 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:36:00,451 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:00,451 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:00,451 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:00,452 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration6_Loop [2023-11-28 20:36:00,452 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:00,452 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:00,453 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:00,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:00,564 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-28 20:36:00,985 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:00,985 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:36:00,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:00,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:00,986 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:00,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-28 20:36:00,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:00,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:01,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-11-28 20:36:01,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:01,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:01,013 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:01,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-28 20:36:01,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:36:01,015 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:01,045 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:36:01,045 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 0, 1] Nus: [1, 0] [2023-11-28 20:36:01,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2023-11-28 20:36:01,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:01,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:01,049 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:01,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-28 20:36:01,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:01,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:01,065 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:36:01,065 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:36:01,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:01,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:36:01,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-11-28 20:36:01,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=640, Invalid=2666, Unknown=0, NotChecked=0, Total=3306 [2023-11-28 20:36:01,070 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. cyclomatic complexity: 7 Second operand has 58 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 58 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:01,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:36:01,648 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2023-11-28 20:36:01,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 71 transitions. [2023-11-28 20:36:01,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-28 20:36:01,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 67 states and 71 transitions. [2023-11-28 20:36:01,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-28 20:36:01,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-28 20:36:01,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 71 transitions. [2023-11-28 20:36:01,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:36:01,650 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 71 transitions. [2023-11-28 20:36:01,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 71 transitions. [2023-11-28 20:36:01,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2023-11-28 20:36:01,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.0606060606060606) internal successors, (70), 65 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:01,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2023-11-28 20:36:01,654 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 70 transitions. [2023-11-28 20:36:01,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-28 20:36:01,656 INFO L428 stractBuchiCegarLoop]: Abstraction has 66 states and 70 transitions. [2023-11-28 20:36:01,656 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-28 20:36:01,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 70 transitions. [2023-11-28 20:36:01,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-28 20:36:01,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:36:01,658 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:36:01,660 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [15, 14, 14, 13, 1, 1, 1] [2023-11-28 20:36:01,660 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-28 20:36:01,660 INFO L748 eck$LassoCheckResult]: Stem: 1434#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1435#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1432#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1428#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1429#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1440#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1433#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1430#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1431#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1438#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1439#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1492#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1489#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1488#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1487#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1486#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1485#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1484#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1483#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1482#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1481#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1480#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1479#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1478#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1477#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1476#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1475#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1474#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1473#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1472#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1471#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1470#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1469#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1468#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1467#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1466#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1465#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1464#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1463#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1462#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1461#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1460#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1459#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1458#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1457#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1456#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1455#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1454#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1453#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1452#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1451#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1450#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1447#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1449#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1448#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1446#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 1445#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1443#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1493#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1490#L22-2 [2023-11-28 20:36:01,660 INFO L750 eck$LassoCheckResult]: Loop: 1490#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1436#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1437#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1491#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1490#L22-2 [2023-11-28 20:36:01,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:01,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1273996581, now seen corresponding path program 4 times [2023-11-28 20:36:01,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:01,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418237466] [2023-11-28 20:36:01,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:01,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:01,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:01,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:01,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:01,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 3 times [2023-11-28 20:36:01,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:01,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367815932] [2023-11-28 20:36:01,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:01,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:01,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:01,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:01,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:01,736 INFO L85 PathProgramCache]: Analyzing trace with hash 745232610, now seen corresponding path program 5 times [2023-11-28 20:36:01,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:01,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64285076] [2023-11-28 20:36:01,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:01,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:01,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:01,806 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:02,019 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:02,020 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:02,020 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:02,020 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:02,020 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:36:02,020 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:02,020 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:02,020 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:02,020 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Loop [2023-11-28 20:36:02,020 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:02,020 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:02,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:02,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:02,136 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-28 20:36:02,634 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:02,635 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:36:02,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:02,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:02,636 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:02,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-28 20:36:02,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:02,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:02,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-11-28 20:36:02,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:02,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:02,664 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:02,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-28 20:36:02,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:36:02,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:02,698 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:36:02,698 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 1, 0] Nus: [0, 1] [2023-11-28 20:36:02,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-28 20:36:02,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:02,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:02,702 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:02,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-28 20:36:02,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:02,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:02,717 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:36:02,717 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:36:02,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-28 20:36:04,790 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:04,790 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:04,790 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:04,790 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:04,790 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:36:04,790 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:04,791 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:04,791 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:04,791 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Lasso [2023-11-28 20:36:04,791 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:04,791 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:04,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:04,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:04,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:04,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:04,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:04,872 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:04,962 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-28 20:36:05,412 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:05,413 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:36:05,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:05,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:05,414 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:05,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-28 20:36:05,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:05,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:05,429 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:36:05,429 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:36:05,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-11-28 20:36:05,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:05,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:05,433 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:05,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-28 20:36:05,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:05,453 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:36:05,453 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:36:05,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-11-28 20:36:05,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:05,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:05,458 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:05,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-28 20:36:05,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:05,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:05,475 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-28 20:36:05,475 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-28 20:36:05,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2023-11-28 20:36:05,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:05,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:05,479 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:05,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-28 20:36:05,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:05,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:05,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:05,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:05,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:05,502 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:05,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-28 20:36:05,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:36:05,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:05,535 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:36:05,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:05,539 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:05,539 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:05,539 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:05,539 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:05,539 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:36:05,539 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:05,539 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:05,539 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:05,539 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Lasso [2023-11-28 20:36:05,539 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:05,539 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:05,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:05,544 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:05,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:05,547 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:05,567 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:05,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:05,717 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-28 20:36:06,199 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:06,199 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:36:06,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:06,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:06,200 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:06,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-28 20:36:06,203 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 [2023-11-28 20:36:06,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:06,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:06,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:06,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:06,215 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:36:06,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:36:06,219 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:06,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:06,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:06,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:06,223 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:06,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-28 20:36:06,225 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 [2023-11-28 20:36:06,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:06,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:06,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:06,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:06,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:06,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:36:06,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:06,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:06,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:06,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:06,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:06,244 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:06,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-28 20:36:06,247 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 [2023-11-28 20:36:06,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:06,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:06,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:06,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:06,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:06,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:36:06,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:06,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:06,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2023-11-28 20:36:06,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:06,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:06,266 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:06,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-28 20:36:06,269 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 [2023-11-28 20:36:06,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:06,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:06,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:06,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:06,284 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:36:06,284 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-28 20:36:06,289 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:06,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2023-11-28 20:36:06,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:06,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:06,293 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:06,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-28 20:36:06,296 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 [2023-11-28 20:36:06,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:06,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:06,309 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2023-11-28 20:36:06,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:06,402 INFO L401 nArgumentSynthesizer]: We have 126 Motzkin's Theorem applications. [2023-11-28 20:36:06,402 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2023-11-28 20:36:08,065 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:36:09,056 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2023-11-28 20:36:09,056 INFO L444 ModelExtractionUtils]: 47 out of 76 variables were initially zero. Simplification set additionally 23 variables to zero. [2023-11-28 20:36:09,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:09,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:09,057 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:09,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-28 20:36:09,060 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:36:09,084 INFO L438 nArgumentSynthesizer]: Removed 13 redundant supporting invariants from a total of 14. [2023-11-28 20:36:09,084 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:36:09,084 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 4294967295 Supporting invariants [-2*ULTIMATE.start_main_~a~0#1 + 2*ULTIMATE.start_main_~b~0#1 + 3 >= 0] [2023-11-28 20:36:09,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2023-11-28 20:36:09,100 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-28 20:36:09,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:09,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:36:09,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:09,327 WARN L260 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 20:36:09,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:09,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:09,564 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 4 loop predicates [2023-11-28 20:36:09,565 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7 Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:09,722 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 105 states and 110 transitions. Complement of second has 11 states. [2023-11-28 20:36:09,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-28 20:36:09,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:09,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-11-28 20:36:09,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 59 letters. Loop has 4 letters. [2023-11-28 20:36:09,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:09,724 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-28 20:36:09,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:09,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:36:09,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:09,915 WARN L260 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 20:36:09,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:10,108 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 4 loop predicates [2023-11-28 20:36:10,109 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7 Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:10,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2023-11-28 20:36:10,360 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 118 states and 125 transitions. Complement of second has 14 states. [2023-11-28 20:36:10,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 3 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-28 20:36:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:10,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2023-11-28 20:36:10,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. Stem has 59 letters. Loop has 4 letters. [2023-11-28 20:36:10,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:10,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. Stem has 63 letters. Loop has 4 letters. [2023-11-28 20:36:10,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:10,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. Stem has 59 letters. Loop has 8 letters. [2023-11-28 20:36:10,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:10,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 125 transitions. [2023-11-28 20:36:10,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-28 20:36:10,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 73 states and 78 transitions. [2023-11-28 20:36:10,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-28 20:36:10,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-28 20:36:10,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 78 transitions. [2023-11-28 20:36:10,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-28 20:36:10,368 INFO L218 hiAutomatonCegarLoop]: Abstraction has 73 states and 78 transitions. [2023-11-28 20:36:10,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 78 transitions. [2023-11-28 20:36:10,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2023-11-28 20:36:10,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.0588235294117647) internal successors, (72), 67 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:10,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2023-11-28 20:36:10,373 INFO L240 hiAutomatonCegarLoop]: Abstraction has 68 states and 72 transitions. [2023-11-28 20:36:10,373 INFO L428 stractBuchiCegarLoop]: Abstraction has 68 states and 72 transitions. [2023-11-28 20:36:10,373 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-28 20:36:10,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 72 transitions. [2023-11-28 20:36:10,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-28 20:36:10,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 20:36:10,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 20:36:10,376 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [15, 14, 14, 14, 1, 1, 1] [2023-11-28 20:36:10,376 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-28 20:36:10,377 INFO L748 eck$LassoCheckResult]: Stem: 2175#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2176#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2172#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2173#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2179#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2178#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2174#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2170#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2171#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2180#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2235#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2234#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2233#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2232#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2231#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2230#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2229#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2228#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2227#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2226#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2225#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2224#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2223#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2222#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2221#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2220#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2219#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2218#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2217#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2216#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2215#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2214#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2213#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2212#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2211#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2210#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2209#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2208#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2207#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2206#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2205#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2204#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2203#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2202#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2201#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2200#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2199#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2198#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2197#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2196#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2195#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2193#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2192#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2190#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2191#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2194#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 2187#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2188#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2183#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2181#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2169#L22-4 [2023-11-28 20:36:10,377 INFO L750 eck$LassoCheckResult]: Loop: 2169#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2177#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2168#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 2169#L22-4 [2023-11-28 20:36:10,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:10,377 INFO L85 PathProgramCache]: Analyzing trace with hash -839188326, now seen corresponding path program 6 times [2023-11-28 20:36:10,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:10,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678552416] [2023-11-28 20:36:10,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:10,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:10,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:10,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:10,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:10,418 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 4 times [2023-11-28 20:36:10,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:10,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392942959] [2023-11-28 20:36:10,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:10,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:10,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:10,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:10,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:10,424 INFO L85 PathProgramCache]: Analyzing trace with hash 745232608, now seen corresponding path program 7 times [2023-11-28 20:36:10,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:36:10,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837384647] [2023-11-28 20:36:10,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:36:10,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:36:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:10,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:36:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:36:10,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:36:10,513 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:10,513 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:10,513 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:10,513 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:10,514 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-28 20:36:10,514 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:10,514 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:10,514 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:10,514 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration8_Loop [2023-11-28 20:36:10,514 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:10,514 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:10,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:10,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:10,616 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:10,616 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-28 20:36:10,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:10,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:10,617 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:10,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-28 20:36:10,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-28 20:36:10,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:10,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2023-11-28 20:36:10,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:10,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:10,639 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:10,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-28 20:36:10,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-28 20:36:10,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-28 20:36:11,379 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-28 20:36:11,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:11,384 INFO L210 LassoAnalysis]: Preferences: [2023-11-28 20:36:11,384 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-28 20:36:11,384 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-28 20:36:11,384 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-28 20:36:11,384 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-28 20:36:11,384 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:11,384 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-28 20:36:11,384 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-28 20:36:11,384 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration8_Loop [2023-11-28 20:36:11,384 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-28 20:36:11,385 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-28 20:36:11,385 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:11,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-28 20:36:11,472 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-28 20:36:11,472 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-28 20:36:11,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:11,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:11,473 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:11,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-28 20:36:11,476 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 [2023-11-28 20:36:11,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:11,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:11,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:11,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:11,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:11,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-28 20:36:11,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:11,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:11,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2023-11-28 20:36:11,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:11,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:11,493 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:11,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-28 20:36:11,495 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 [2023-11-28 20:36:11,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:11,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:11,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:11,507 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:11,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-28 20:36:11,511 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-28 20:36:11,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:11,517 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:11,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:11,520 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-28 20:36:11,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:11,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:11,522 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:11,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2023-11-28 20:36:11,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-28 20:36:11,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:11,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:11,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:11,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-28 20:36:11,538 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-28 20:36:11,538 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-28 20:36:11,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:11,540 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-28 20:36:11,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2023-11-28 20:36:11,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:11,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:11,544 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:11,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-28 20:36:11,547 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 [2023-11-28 20:36:11,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-28 20:36:11,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-28 20:36:11,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-28 20:36:11,560 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-28 20:36:11,560 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-28 20:36:11,564 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-28 20:36:11,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-28 20:36:11,576 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-28 20:36:11,584 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-28 20:36:11,584 INFO L444 ModelExtractionUtils]: 6 out of 11 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-28 20:36:11,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 20:36:11,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:36:11,586 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 20:36:11,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-28 20:36:11,588 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-28 20:36:11,588 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-28 20:36:11,588 INFO L513 LassoAnalysis]: Proved termination. [2023-11-28 20:36:11,588 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = -1*ULTIMATE.start_main_#t~nondet2#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-28 20:36:11,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2023-11-28 20:36:11,593 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-28 20:36:11,594 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-28 20:36:11,594 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated [2023-11-28 20:36:11,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:11,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:36:11,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:11,718 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 20:36:11,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:11,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:11,841 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 [2023-11-28 20:36:11,841 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:11,866 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 76 transitions. Complement of second has 7 states. [2023-11-28 20:36:11,866 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 [2023-11-28 20:36:11,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-28 20:36:11,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 60 letters. Loop has 3 letters. [2023-11-28 20:36:11,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:11,868 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-28 20:36:11,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:11,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:36:11,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:11,988 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 20:36:11,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:12,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2023-11-28 20:36:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:12,133 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-28 20:36:12,133 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:12,157 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 76 transitions. Complement of second has 7 states. [2023-11-28 20:36:12,158 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 [2023-11-28 20:36:12,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:12,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-28 20:36:12,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 60 letters. Loop has 3 letters. [2023-11-28 20:36:12,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:12,159 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-28 20:36:12,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:36:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:12,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:36:12,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:36:12,263 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 20:36:12,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:36:12,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:36:12,364 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-28 20:36:12,365 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:12,390 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 131 states and 139 transitions. Complement of second has 8 states. [2023-11-28 20:36:12,390 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 [2023-11-28 20:36:12,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:36:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-28 20:36:12,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 60 letters. Loop has 3 letters. [2023-11-28 20:36:12,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:12,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 63 letters. Loop has 3 letters. [2023-11-28 20:36:12,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:12,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 60 letters. Loop has 6 letters. [2023-11-28 20:36:12,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-28 20:36:12,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 131 states and 139 transitions. [2023-11-28 20:36:12,394 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-28 20:36:12,394 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 131 states to 0 states and 0 transitions. [2023-11-28 20:36:12,394 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-28 20:36:12,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-28 20:36:12,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-28 20:36:12,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:36:12,394 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:36:12,395 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:36:12,395 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:36:12,395 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-28 20:36:12,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-28 20:36:12,395 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-28 20:36:12,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-28 20:36:12,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:36:12 BoogieIcfgContainer [2023-11-28 20:36:12,402 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-28 20:36:12,403 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:36:12,403 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:36:12,403 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:36:12,404 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:35:43" (3/4) ... [2023-11-28 20:36:12,405 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 20:36:12,406 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:36:12,407 INFO L158 Benchmark]: Toolchain (without parser) took 29470.03ms. Allocated memory was 169.9MB in the beginning and 230.7MB in the end (delta: 60.8MB). Free memory was 123.7MB in the beginning and 147.1MB in the end (delta: -23.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2023-11-28 20:36:12,407 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 169.9MB. Free memory was 141.7MB in the beginning and 141.4MB in the end (delta: 209.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:36:12,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.11ms. Allocated memory is still 169.9MB. Free memory was 123.7MB in the beginning and 114.3MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 20:36:12,408 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.90ms. Allocated memory is still 169.9MB. Free memory was 114.1MB in the beginning and 112.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:36:12,408 INFO L158 Benchmark]: Boogie Preprocessor took 20.99ms. Allocated memory is still 169.9MB. Free memory was 112.8MB in the beginning and 111.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:36:12,409 INFO L158 Benchmark]: RCFGBuilder took 231.58ms. Allocated memory is still 169.9MB. Free memory was 111.2MB in the beginning and 102.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-28 20:36:12,409 INFO L158 Benchmark]: BuchiAutomizer took 28976.37ms. Allocated memory was 169.9MB in the beginning and 230.7MB in the end (delta: 60.8MB). Free memory was 102.0MB in the beginning and 147.1MB in the end (delta: -45.0MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-11-28 20:36:12,409 INFO L158 Benchmark]: Witness Printer took 3.56ms. Allocated memory is still 230.7MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:36:12,411 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 169.9MB. Free memory was 141.7MB in the beginning and 141.4MB in the end (delta: 209.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.11ms. Allocated memory is still 169.9MB. Free memory was 123.7MB in the beginning and 114.3MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.90ms. Allocated memory is still 169.9MB. Free memory was 114.1MB in the beginning and 112.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.99ms. Allocated memory is still 169.9MB. Free memory was 112.8MB in the beginning and 111.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 231.58ms. Allocated memory is still 169.9MB. Free memory was 111.2MB in the beginning and 102.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 28976.37ms. Allocated memory was 169.9MB in the beginning and 230.7MB in the end (delta: 60.8MB). Free memory was 102.0MB in the beginning and 147.1MB in the end (delta: -45.0MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 3.56ms. Allocated memory is still 230.7MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (5 trivial, 6 deterministic, 1 nondeterministic). One deterministic module has 2-nested ranking function null, null and consists of 7 locations. One deterministic module has 2-nested ranking function null, null and consists of 4 locations. One deterministic module has affine ranking function ((-2 * a) + 1) and consists of 4 locations. One deterministic module has affine ranking function ((2 * x) + 1) and consists of 7 locations. One deterministic module has 2-nested ranking function null, null and consists of 4 locations. One deterministic module has affine ranking function (4294967295 + (-2 * a)) and consists of 9 locations. One nondeterministic module has 2-nested ranking function null, null and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 58 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 28.9s and 9 iterations. TraceHistogramMax:15. Analysis of lassos took 24.0s. Construction of modules took 0.7s. Büchi inclusion checks took 3.9s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 30 StatesRemovedByMinimization, 10 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, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 246 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 239 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 213 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1044 IncrementalHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 213 mSolverCounterUnsat, 66 mSDtfsCounter, 1044 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN1 SILU0 SILI0 SILT1 lasso2 LassoPreprocessingBenchmarks: Lassos: inital57 mio100 ax100 hnf100 lsp99 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf94 smp100 dnf901 smp57 tf101 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 4193ms VariablesStem: 4 VariablesLoop: 7 DisjunctsStem: 1 DisjunctsLoop: 7 SupportingInvariants: 14 MotzkinApplications: 126 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-28 20:36:12,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-28 20:36:12,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-28 20:36:12,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-28 20:36:13,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef864b8-bfdb-4acf-a5f2-f949d7619ea5/bin/uautomizer-verify-BQ2R08f2Ya/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