./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/knuth-nosqrt-both-t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b 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_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/knuth-nosqrt-both-t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce7adad8a0888347d25c990302f1d2465b94eb9b4e09c5836441e334d4180501 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:13:41,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:13:41,326 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:13:41,335 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:13:41,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:13:41,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:13:41,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:13:41,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:13:41,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:13:41,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:13:41,377 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:13:41,377 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:13:41,378 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:13:41,378 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:13:41,378 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:13:41,379 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:13:41,379 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:13:41,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:13:41,380 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:13:41,380 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:13:41,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:13:41,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:13:41,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:13:41,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:13:41,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:13:41,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:13:41,385 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:13:41,386 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:13:41,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:13:41,387 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:13:41,388 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:13:41,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:13:41,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:13:41,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:13:41,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:13:41,390 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:13:41,390 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_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7adad8a0888347d25c990302f1d2465b94eb9b4e09c5836441e334d4180501 [2023-11-06 22:13:41,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:13:41,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:13:41,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:13:41,748 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:13:41,748 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:13:41,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-nla/knuth-nosqrt-both-t.i [2023-11-06 22:13:45,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:13:45,449 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:13:45,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/sv-benchmarks/c/termination-nla/knuth-nosqrt-both-t.i [2023-11-06 22:13:45,457 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/data/0b3d65a45/05e617c2674a471792107741ed594286/FLAG49e46a38c [2023-11-06 22:13:45,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/data/0b3d65a45/05e617c2674a471792107741ed594286 [2023-11-06 22:13:45,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:13:45,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:13:45,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:13:45,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:13:45,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:13:45,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3298cbe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45, skipping insertion in model container [2023-11-06 22:13:45,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:13:45,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:13:45,780 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:13:45,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:13:45,837 WARN L672 CHandler]: The function __VERIFIER_nondet_unsigned_int is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:13:45,855 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:13:45,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45 WrapperNode [2023-11-06 22:13:45,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:13:45,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:13:45,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:13:45,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:13:45,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,904 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2023-11-06 22:13:45,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:13:45,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:13:45,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:13:45,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:13:45,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:13:45,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:13:45,953 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:13:45,953 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:13:45,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (1/1) ... [2023-11-06 22:13:45,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:45,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:45,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:46,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:13:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:13:46,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:13:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2023-11-06 22:13:46,109 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:13:46,111 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:13:46,434 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:13:46,441 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:13:46,441 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:13:46,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:13:46 BoogieIcfgContainer [2023-11-06 22:13:46,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:13:46,445 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:13:46,445 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:13:46,449 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:13:46,450 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:13:46,450 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:13:45" (1/3) ... [2023-11-06 22:13:46,451 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b1ac219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:13:46, skipping insertion in model container [2023-11-06 22:13:46,451 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:13:46,451 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:45" (2/3) ... [2023-11-06 22:13:46,452 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b1ac219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:13:46, skipping insertion in model container [2023-11-06 22:13:46,452 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:13:46,452 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:13:46" (3/3) ... [2023-11-06 22:13:46,454 INFO L332 chiAutomizerObserver]: Analyzing ICFG knuth-nosqrt-both-t.i [2023-11-06 22:13:46,513 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:13:46,513 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:13:46,513 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:13:46,513 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:13:46,514 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:13:46,514 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:13:46,514 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:13:46,514 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:13:46,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2023-11-06 22:13:46,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 22:13:46,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:13:46,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:13:46,544 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 22:13:46,545 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:13:46,545 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:13:46,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2023-11-06 22:13:46,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 22:13:46,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:13:46,547 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:13:46,548 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 22:13:46,548 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:13:46,557 INFO L748 eck$LassoCheckResult]: Stem: 11#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret1#1, main_#t~ret2#1, main_~s~0#1, main_~a~0#1, main_~r~0#1, main_~k~0#1, main_~q~0#1, main_~d~0#1, main_~n~0#1, main_~t~0#1;havoc main_~s~0#1;havoc main_~a~0#1;havoc main_~r~0#1;havoc main_~k~0#1;havoc main_~q~0#1;havoc main_~d~0#1;havoc main_~n~0#1;havoc main_~t~0#1;call main_#t~ret1#1 := __VERIFIER_nondet_unsigned_int();main_~s~0#1 := main_#t~ret1#1;havoc main_#t~ret1#1;call main_#t~ret2#1 := __VERIFIER_nondet_unsigned_int();main_~a~0#1 := main_#t~ret2#1;havoc main_#t~ret2#1; 3#L15true assume !(main_~s~0#1 % 4294967296 >= 8192); 7#L18true assume !(main_~a~0#1 % 4294967296 <= 2);main_~n~0#1 := main_~s~0#1 * main_~s~0#1;main_~d~0#1 := main_~a~0#1;main_~r~0#1 := main_~n~0#1 % 4294967296 % (main_~d~0#1 % 4294967296);main_~t~0#1 := 0;main_~k~0#1 := main_~n~0#1 % 4294967296 % ((main_~d~0#1 - 2) % 4294967296);main_~q~0#1 := 4 * (main_~n~0#1 % 4294967296 / ((main_~d~0#1 - 2) % 4294967296) - main_~n~0#1 % 4294967296 / (main_~d~0#1 % 4294967296)); 9#L40-2true [2023-11-06 22:13:46,557 INFO L750 eck$LassoCheckResult]: Loop: 9#L40-2true assume !false; 10#L28true assume !!((main_~s~0#1 + main_~d~0#1 * main_~k~0#1 - main_~d~0#1 * main_~t~0#1 - main_~a~0#1 * main_~k~0#1 + main_~a~0#1 * main_~t~0#1) % 4294967296 >= main_~d~0#1 % 4294967296 && 0 != main_~r~0#1 % 4294967296); 4#L29true assume (2 * main_~r~0#1 + main_~q~0#1) % 4294967296 < main_~k~0#1 % 4294967296;main_~t~0#1 := main_~r~0#1;main_~r~0#1 := 2 + (2 * main_~r~0#1 - main_~k~0#1 + main_~q~0#1 + main_~d~0#1);main_~k~0#1 := main_~t~0#1;main_~q~0#1 := 4 + main_~q~0#1;main_~d~0#1 := 2 + main_~d~0#1; 9#L40-2true [2023-11-06 22:13:46,564 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:46,564 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2023-11-06 22:13:46,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:46,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250213782] [2023-11-06 22:13:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:46,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:46,737 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:13:46,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36773324] [2023-11-06 22:13:46,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:46,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:13:46,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:46,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:13:46,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:13:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:46,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:46,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:46,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:46,916 INFO L85 PathProgramCache]: Analyzing trace with hash 50807, now seen corresponding path program 1 times [2023-11-06 22:13:46,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:46,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264669717] [2023-11-06 22:13:46,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:46,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:46,930 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:13:46,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756561685] [2023-11-06 22:13:46,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:46,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:13:46,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:46,962 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:13:46,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:13:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:47,027 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:47,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:47,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:47,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1806911792, now seen corresponding path program 1 times [2023-11-06 22:13:47,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:47,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697887744] [2023-11-06 22:13:47,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:47,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:47,050 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:13:47,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766021745] [2023-11-06 22:13:47,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:47,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:13:47,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:47,054 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:13:47,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e89940e7-feca-4847-9ba6-e729ef2dc120/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process