./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem04_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem04_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec8dfa7cbc82eeacd7ecd21e52b45552783d684550437c0ba5ed945fcdc261d2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:11,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:11,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 21:59:11,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:11,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:11,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:11,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:11,593 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:11,593 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:11,594 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:11,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:11,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:11,595 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:11,595 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 21:59:11,596 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 21:59:11,596 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 21:59:11,596 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 21:59:11,597 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 21:59:11,597 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 21:59:11,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:11,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 21:59:11,598 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:11,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:11,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:11,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:11,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 21:59:11,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 21:59:11,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 21:59:11,601 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:11,601 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:11,602 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:11,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:11,602 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 21:59:11,602 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:11,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:11,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:11,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:11,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:11,604 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 21:59:11,605 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_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec8dfa7cbc82eeacd7ecd21e52b45552783d684550437c0ba5ed945fcdc261d2 [2024-10-31 21:59:11,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:11,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:11,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:11,981 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:11,982 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:11,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/eca-rers2012/Problem04_label17.c Unable to find full path for "g++" [2024-10-31 21:59:14,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:14,693 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:14,694 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/sv-benchmarks/c/eca-rers2012/Problem04_label17.c [2024-10-31 21:59:14,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/data/19aab8d15/ea4e17d518234db38e0bdefe190dbec7/FLAG05b959c94 [2024-10-31 21:59:15,176 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/data/19aab8d15/ea4e17d518234db38e0bdefe190dbec7 [2024-10-31 21:59:15,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:15,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:15,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:15,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:15,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:15,193 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:15" (1/1) ... [2024-10-31 21:59:15,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d1f1105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:15, skipping insertion in model container [2024-10-31 21:59:15,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:15" (1/1) ... [2024-10-31 21:59:15,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:16,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:16,845 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:17,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:17,535 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:17,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17 WrapperNode [2024-10-31 21:59:17,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:17,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:17,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:17,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:17,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:17,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:17,874 INFO L138 Inliner]: procedures = 17, calls = 12, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 5572 [2024-10-31 21:59:17,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:17,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:17,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:17,876 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:17,889 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:17,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:17,934 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:18,056 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:59:18,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:18,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:18,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:18,201 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:18,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:18,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:18,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:18,262 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:18,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:18,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:18,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (1/1) ... [2024-10-31 21:59:18,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:18,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:18,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:18,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:18,433 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:18,435 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:24,063 INFO L? ?]: Removed 768 outVars from TransFormulas that were not future-live. [2024-10-31 21:59:24,064 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:24,106 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:24,106 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 21:59:24,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:24 BoogieIcfgContainer [2024-10-31 21:59:24,107 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:24,108 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 21:59:24,108 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 21:59:24,112 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 21:59:24,113 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:59:24,114 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 09:59:15" (1/3) ... [2024-10-31 21:59:24,115 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3dc514ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:59:24, skipping insertion in model container [2024-10-31 21:59:24,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:59:24,115 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:17" (2/3) ... [2024-10-31 21:59:24,116 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3dc514ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:59:24, skipping insertion in model container [2024-10-31 21:59:24,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:59:24,116 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:24" (3/3) ... [2024-10-31 21:59:24,117 INFO L332 chiAutomizerObserver]: Analyzing ICFG Problem04_label17.c [2024-10-31 21:59:24,237 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 21:59:24,238 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 21:59:24,238 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 21:59:24,238 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 21:59:24,239 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 21:59:24,239 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 21:59:24,240 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 21:59:24,240 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 21:59:24,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 885 states, 884 states have (on average 1.920814479638009) internal successors, (1698), 884 states have internal predecessors, (1698), 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) [2024-10-31 21:59:24,350 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 880 [2024-10-31 21:59:24,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:24,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:24,363 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:59:24,363 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:59:24,363 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 21:59:24,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 885 states, 884 states have (on average 1.920814479638009) internal successors, (1698), 884 states have internal predecessors, (1698), 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) [2024-10-31 21:59:24,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 880 [2024-10-31 21:59:24,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:24,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:24,404 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:59:24,404 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:59:24,421 INFO L745 eck$LassoCheckResult]: Stem: 133#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3);~f~0 := 6;~e~0 := 5;~d~0 := 4;~b~0 := 2;~a~0 := 1;~c~0 := 3;~u~0 := 21;~v~0 := 22;~w~0 := 23;~x~0 := 24;~y~0 := 25;~z~0 := 26;~a3~0 := 1;~a4~0 := 17;~a25~0 := 1;~a1~0 := 1;~a26~0 := 18;~a28~0 := 15;~a7~0 := 1;~a14~0 := 19; 802#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet12#1, main_#t~ret13#1, main_~input~0#1, main_~output~0#1;main_~output~0#1 := -1; 765#L4826-2true [2024-10-31 21:59:24,423 INFO L747 eck$LassoCheckResult]: Loop: 765#L4826-2true assume !false;havoc main_~input~0#1;havoc main_#t~nondet12#1;main_~input~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 198#L4831true assume !(((((1 != main_~input~0#1 && 2 != main_~input~0#1) && 3 != main_~input~0#1) && 4 != main_~input~0#1) && 5 != main_~input~0#1) && 6 != main_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_#t~ret9#1, calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; 661#L50true assume (1 == ~a25~0 && 1 == ~a1~0 && 5 == calculate_output_~input#1 && (((((17 == ~a4~0 && 19 == ~a26~0) && 17 == ~a28~0) && !(1 == ~a7~0)) && 20 == ~a14~0) || ((1 == ~a7~0 && (17 == ~a26~0 && 18 == ~a4~0) && 15 == ~a28~0) && 18 == ~a14~0))) && 1 == ~a3~0;~a28~0 := 15;~a26~0 := 17;~a4~0 := 16;~a14~0 := 18;~a7~0 := 1;calculate_output_#res#1 := -1; 482#calculate_output_returnLabel#1true main_#t~ret13#1 := calculate_output_#res#1;havoc calculate_output_#t~ret9#1, calculate_output_~input#1;havoc calculate_output_#in~input#1;assume { :end_inline_calculate_output } true;main_~output~0#1 := main_#t~ret13#1;havoc main_~input~0#1;havoc main_#t~ret13#1; 765#L4826-2true [2024-10-31 21:59:24,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:24,431 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 21:59:24,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:24,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496395541] [2024-10-31 21:59:24,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:24,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:24,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:24,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:24,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:24,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1271452, now seen corresponding path program 1 times [2024-10-31 21:59:24,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:24,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137664036] [2024-10-31 21:59:24,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:24,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:24,750 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:24,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:24,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:24,780 INFO L85 PathProgramCache]: Analyzing trace with hash 889698654, now seen corresponding path program 1 times [2024-10-31 21:59:24,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:24,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135796308] [2024-10-31 21:59:24,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:24,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:25,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:25,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135796308] [2024-10-31 21:59:25,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135796308] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:25,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:25,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:25,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591526191] [2024-10-31 21:59:25,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:25,487 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:59:25,488 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:59:25,488 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:59:25,489 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:59:25,489 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:59:25,489 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:25,489 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:59:25,489 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:59:25,490 INFO L132 ssoRankerPreferences]: Filename of dumped script: Problem04_label17.c_Iteration1_Loop [2024-10-31 21:59:25,490 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:59:25,490 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:59:25,519 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:25,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:25,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:25,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:25,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:25,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:25,715 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:25,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:25,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:25,725 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:25,728 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:25,859 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-10-31 21:59:26,397 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:59:26,397 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:59:26,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:26,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:26,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:26,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 21:59:26,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:59:26,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:59:26,423 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:59:26,423 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_calculate_output_~input#1=0} Honda state: {ULTIMATE.start_calculate_output_~input#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:59:26,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 21:59:26,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:26,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:26,445 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:26,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 21:59:26,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:59:26,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:59:26,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 21:59:26,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:26,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:26,503 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:26,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 21:59:26,506 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:59:26,506 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:59:26,629 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:59:26,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:26,633 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:59:26,633 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:59:26,634 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:59:26,634 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:59:26,634 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:59:26,634 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:26,634 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:59:26,634 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:59:26,634 INFO L132 ssoRankerPreferences]: Filename of dumped script: Problem04_label17.c_Iteration1_Loop [2024-10-31 21:59:26,634 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:59:26,634 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:59:26,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:26,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:26,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:26,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:26,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:26,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:26,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:26,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:26,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:26,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:26,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:26,930 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-10-31 21:59:27,386 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:59:27,391 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:59:27,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:27,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:27,394 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:27,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 21:59:27,398 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 [2024-10-31 21:59:27,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:27,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:27,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:27,416 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2024-10-31 21:59:27,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:27,436 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:59:27,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:27,452 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:59:27,467 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 21:59:27,467 INFO L444 ModelExtractionUtils]: 5 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:59:27,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:27,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:27,488 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:27,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 21:59:27,492 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:59:27,492 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:59:27,492 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:59:27,493 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~a4~0) = 1*~a4~0 Supporting invariants [] [2024-10-31 21:59:27,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 21:59:27,515 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:59:27,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:27,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:59:27,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:27,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:27,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:27,755 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 21:59:27,759 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 885 states, 884 states have (on average 1.920814479638009) internal successors, (1698), 884 states have internal predecessors, (1698), 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 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-10-31 21:59:28,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a213fecb-aca0-4335-aff7-80374d6cfb21/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 21:59:32,094 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 885 states, 884 states have (on average 1.920814479638009) internal successors, (1698), 884 states have internal predecessors, (1698), 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 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 3542 states and 6269 transitions. Complement of second has 6 states. [2024-10-31 21:59:32,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 21:59:32,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-10-31 21:59:32,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3357 transitions. [2024-10-31 21:59:32,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 3357 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-31 21:59:32,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:59:32,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 3357 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 21:59:32,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:59:32,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 3357 transitions. Stem has 2 letters. Loop has 8 letters. [2024-10-31 21:59:32,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:59:32,112 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3542 states and 6269 transitions. [2024-10-31 21:59:32,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 1698 [2024-10-31 21:59:32,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3542 states to 2528 states and 4374 transitions. [2024-10-31 21:59:32,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1701 [2024-10-31 21:59:32,170 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1706 [2024-10-31 21:59:32,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2528 states and 4374 transitions. [2024-10-31 21:59:32,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:59:32,172 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2528 states and 4374 transitions. [2024-10-31 21:59:32,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states and 4374 transitions. [2024-10-31 21:59:32,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 2523. [2024-10-31 21:59:32,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2523 states have (on average 1.7316686484344035) internal successors, (4369), 2522 states have internal predecessors, (4369), 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) [2024-10-31 21:59:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4369 transitions. [2024-10-31 21:59:32,298 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2523 states and 4369 transitions. [2024-10-31 21:59:32,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:32,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:32,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:32,304 INFO L87 Difference]: Start difference. First operand 2523 states and 4369 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-10-31 21:59:37,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:37,696 INFO L93 Difference]: Finished difference Result 4980 states and 7735 transitions. [2024-10-31 21:59:37,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4980 states and 7735 transitions. [2024-10-31 21:59:37,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3272 [2024-10-31 21:59:37,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4980 states to 4919 states and 7654 transitions. [2024-10-31 21:59:37,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3275 [2024-10-31 21:59:37,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3275 [2024-10-31 21:59:37,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4919 states and 7654 transitions. [2024-10-31 21:59:37,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:59:37,776 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4919 states and 7654 transitions. [2024-10-31 21:59:37,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4919 states and 7654 transitions. [2024-10-31 21:59:37,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4919 to 4919. [2024-10-31 21:59:37,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4919 states, 4919 states have (on average 1.556007318560683) internal successors, (7654), 4918 states have internal predecessors, (7654), 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) [2024-10-31 21:59:37,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4919 states to 4919 states and 7654 transitions. [2024-10-31 21:59:37,875 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4919 states and 7654 transitions. [2024-10-31 21:59:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:37,877 INFO L425 stractBuchiCegarLoop]: Abstraction has 4919 states and 7654 transitions. [2024-10-31 21:59:37,877 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 21:59:37,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4919 states and 7654 transitions. [2024-10-31 21:59:37,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3272 [2024-10-31 21:59:37,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:37,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:37,906 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 21:59:37,906 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:37,907 INFO L745 eck$LassoCheckResult]: Stem: 12470#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3);~f~0 := 6;~e~0 := 5;~d~0 := 4;~b~0 := 2;~a~0 := 1;~c~0 := 3;~u~0 := 21;~v~0 := 22;~w~0 := 23;~x~0 := 24;~y~0 := 25;~z~0 := 26;~a3~0 := 1;~a4~0 := 17;~a25~0 := 1;~a1~0 := 1;~a26~0 := 18;~a28~0 := 15;~a7~0 := 1;~a14~0 := 19; 12471#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet12#1, main_#t~ret13#1, main_~input~0#1, main_~output~0#1;main_~output~0#1 := -1; 14136#L4826-2 assume !false;havoc main_~input~0#1;havoc main_#t~nondet12#1;main_~input~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 12690#L4831 [2024-10-31 21:59:37,908 INFO L747 eck$LassoCheckResult]: Loop: 12690#L4831 assume !(((((1 != main_~input~0#1 && 2 != main_~input~0#1) && 3 != main_~input~0#1) && 4 != main_~input~0#1) && 5 != main_~input~0#1) && 6 != main_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_#t~ret9#1, calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; 12691#L50 assume !((1 == ~a25~0 && 1 == ~a1~0 && 5 == calculate_output_~input#1 && (((((17 == ~a4~0 && 19 == ~a26~0) && 17 == ~a28~0) && !(1 == ~a7~0)) && 20 == ~a14~0) || ((1 == ~a7~0 && (17 == ~a26~0 && 18 == ~a4~0) && 15 == ~a28~0) && 18 == ~a14~0))) && 1 == ~a3~0); 13697#L57 assume (1 == ~a25~0 && (16 == ~a28~0 && 17 == ~a4~0 && 1 == ~a1~0 && (((1 == ~a7~0 && 18 == ~a26~0) || (19 == ~a26~0 && 1 == ~a7~0)) || (!(1 == ~a7~0) && 17 == ~a26~0)) && 4 == calculate_output_~input#1) && !(1 == ~a3~0)) && 20 == ~a14~0;~a26~0 := 19;~a28~0 := 15;~a7~0 := 0;calculate_output_#res#1 := -1; 12041#calculate_output_returnLabel#1 main_#t~ret13#1 := calculate_output_#res#1;havoc calculate_output_#t~ret9#1, calculate_output_~input#1;havoc calculate_output_#in~input#1;assume { :end_inline_calculate_output } true;main_~output~0#1 := main_#t~ret13#1;havoc main_~input~0#1;havoc main_#t~ret13#1; 14255#L4826-2 assume !false;havoc main_~input~0#1;havoc main_#t~nondet12#1;main_~input~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 16305#L4831 assume !(((((1 != main_~input~0#1 && 2 != main_~input~0#1) && 3 != main_~input~0#1) && 4 != main_~input~0#1) && 5 != main_~input~0#1) && 6 != main_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_#t~ret9#1, calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; 16304#L50 assume !((1 == ~a25~0 && 1 == ~a1~0 && 5 == calculate_output_~input#1 && (((((17 == ~a4~0 && 19 == ~a26~0) && 17 == ~a28~0) && !(1 == ~a7~0)) && 20 == ~a14~0) || ((1 == ~a7~0 && (17 == ~a26~0 && 18 == ~a4~0) && 15 == ~a28~0) && 18 == ~a14~0))) && 1 == ~a3~0); 16303#L57 assume !((1 == ~a25~0 && (16 == ~a28~0 && 17 == ~a4~0 && 1 == ~a1~0 && (((1 == ~a7~0 && 18 == ~a26~0) || (19 == ~a26~0 && 1 == ~a7~0)) || (!(1 == ~a7~0) && 17 == ~a26~0)) && 4 == calculate_output_~input#1) && !(1 == ~a3~0)) && 20 == ~a14~0); 16302#L62 assume !(17 == ~a28~0 && 1 == ~a1~0 && 1 == ~a25~0 && 1 == ~a7~0 && 17 == ~a4~0 && (18 == ~a14~0 && 4 == calculate_output_~input#1 && (17 == ~a26~0 || 18 == ~a26~0)) && !(1 == ~a3~0)); 16301#L68 assume !(!(1 == ~a7~0) && !(1 == ~a3~0) && (16 == ~a28~0 && 1 == ~a25~0 && 17 == ~a4~0 && ((17 == ~a26~0 || 18 == ~a26~0) && 6 == calculate_output_~input#1) && 1 == ~a1~0) && 19 == ~a14~0); 16299#L76 assume !(16 == ~a28~0 && ((18 == ~a14~0 && (!(1 == ~a7~0) && 18 == ~a26~0 && 1 == ~a3~0 && 1 == calculate_output_~input#1) && 1 == ~a1~0) && 1 == ~a25~0) && 18 == ~a4~0); 16297#L82 assume !(!(1 == ~a3~0) && 17 == ~a28~0 && 1 == ~a25~0 && ((5 == calculate_output_~input#1 && (((18 == ~a14~0 && 19 == ~a26~0 && !(1 == ~a7~0)) || (19 == ~a14~0 && 1 == ~a7~0 && 17 == ~a26~0)) || (19 == ~a14~0 && 18 == ~a26~0 && 1 == ~a7~0))) && 17 == ~a4~0) && 1 == ~a1~0); 16296#L90 assume !(1 == ~a1~0 && 17 == ~a26~0 && 18 == ~a4~0 && !(1 == ~a7~0) && ((1 == ~a25~0 && 3 == calculate_output_~input#1 && 15 == ~a28~0) && 1 == ~a3~0) && 20 == ~a14~0); 16295#L95 assume !(((((1 == ~a1~0 && (20 == ~a14~0 && 2 == calculate_output_~input#1 && 17 == ~a26~0) && !(1 == ~a7~0)) && 15 == ~a28~0) && 1 == ~a25~0) && 17 == ~a4~0) && !(1 == ~a3~0)); 16294#L102 assume !(17 == ~a28~0 && 17 == ~a4~0 && 1 == ~a25~0 && 1 == ~a3~0 && 20 == ~a14~0 && 1 == ~a1~0 && 6 == calculate_output_~input#1 && (((1 == ~a7~0 && 19 == ~a26~0) || (17 == ~a26~0 && !(1 == ~a7~0))) || (!(1 == ~a7~0) && 18 == ~a26~0))); 16293#L109 assume !(((17 == ~a4~0 && (((((!(1 == ~a7~0) && 19 == ~a26~0) && 19 == ~a14~0) || (20 == ~a14~0 && 1 == ~a7~0 && 17 == ~a26~0)) && 3 == calculate_output_~input#1) && 15 == ~a28~0) && 1 == ~a25~0) && 1 == ~a3~0) && 1 == ~a1~0); 16292#L115 assume !((16 == ~a28~0 && (!(1 == ~a7~0) && 1 == ~a1~0 && 17 == ~a4~0 && ((18 == ~a26~0 || 19 == ~a26~0) && 5 == calculate_output_~input#1) && !(1 == ~a3~0)) && 18 == ~a14~0) && 1 == ~a25~0); 16291#L122 assume !(1 == ~a25~0 && (1 == ~a1~0 && (1 == ~a7~0 && ((2 == calculate_output_~input#1 && 17 == ~a4~0) && 15 == ~a28~0) && 1 == ~a3~0) && 18 == ~a26~0) && 19 == ~a14~0); 16290#L126 assume !((18 == ~a26~0 && 1 == ~a7~0 && 16 == ~a28~0 && (((1 == ~a25~0 && 2 == calculate_output_~input#1) && 18 == ~a4~0) && 19 == ~a14~0) && 1 == ~a1~0) && !(1 == ~a3~0)); 16289#L131 assume !(18 == ~a4~0 && 1 == ~a7~0 && !(1 == ~a3~0) && 19 == ~a14~0 && (1 == ~a1~0 && 16 == ~a28~0 && 1 == calculate_output_~input#1 && 18 == ~a26~0) && 1 == ~a25~0); 16288#L138 assume !(1 == ~a25~0 && !(1 == ~a3~0) && 16 == ~a28~0 && (((3 == calculate_output_~input#1 && ((!(1 == ~a7~0) && 17 == ~a26~0) || (1 == ~a7~0 && 18 == ~a26~0) || (1 == ~a7~0 && 19 == ~a26~0))) && 20 == ~a14~0) && 1 == ~a1~0) && 17 == ~a4~0); 16287#L146 assume !(17 == ~a4~0 && 1 == ~a25~0 && 20 == ~a14~0 && ((!(1 == ~a3~0) && 5 == calculate_output_~input#1 && (((1 == ~a7~0 && 18 == ~a26~0) || (19 == ~a26~0 && 1 == ~a7~0)) || (17 == ~a26~0 && !(1 == ~a7~0)))) && 1 == ~a1~0) && 16 == ~a28~0); 16286#L151 assume !(((((((1 == ~a7~0 && (19 == ~a26~0 || 17 == ~a26~0 || 18 == ~a26~0) && 5 == calculate_output_~input#1) && 1 == ~a1~0) && !(1 == ~a3~0)) && 1 == ~a25~0) && 20 == ~a14~0) && 18 == ~a4~0) && 15 == ~a28~0); 16285#L157 assume !((19 == ~a26~0 && 1 == ~a7~0 && (((18 == ~a14~0 && 4 == calculate_output_~input#1 && 1 == ~a1~0) && !(1 == ~a3~0)) && 1 == ~a25~0) && 15 == ~a28~0) && 16 == ~a4~0); 16284#L161 assume !(18 == ~a26~0 && (15 == ~a28~0 && 1 == ~a7~0 && 1 == ~a25~0 && (17 == ~a4~0 && 19 == ~a14~0 && 6 == calculate_output_~input#1) && 1 == ~a3~0) && 1 == ~a1~0); 16283#L165 assume !((20 == ~a14~0 && (15 == ~a28~0 && ((17 == ~a4~0 && 5 == calculate_output_~input#1 && 1 == ~a3~0) && 19 == ~a26~0) && 1 == ~a25~0) && 1 == ~a1~0) && 1 == ~a7~0); 16282#L170 assume !((1 == ~a1~0 && (((19 == ~a14~0 && 4 == calculate_output_~input#1 && ((18 == ~a26~0 && !(1 == ~a7~0)) || (1 == ~a7~0 && 19 == ~a26~0) || (17 == ~a26~0 && !(1 == ~a7~0)))) && 16 == ~a28~0) && 16 == ~a4~0) && 1 == ~a25~0) && !(1 == ~a3~0)); 16281#L176 assume !(17 == ~a28~0 && (1 == ~a3~0 && 1 == ~a25~0 && 18 == ~a4~0 && 1 == calculate_output_~input#1 && (((19 == ~a26~0 && !(1 == ~a7~0)) && 19 == ~a14~0) || ((17 == ~a26~0 && 1 == ~a7~0) && 20 == ~a14~0))) && 1 == ~a1~0); 15910#L183 assume !((!(1 == ~a7~0) && ((!(1 == ~a3~0) && (((18 == ~a26~0 || 19 == ~a26~0) && 2 == calculate_output_~input#1) && 1 == ~a1~0) && 18 == ~a14~0) && 1 == ~a25~0) && 16 == ~a4~0) && 16 == ~a28~0); 15911#L189 assume !((1 == ~a1~0 && (20 == ~a14~0 && (17 == ~a28~0 && (((1 == ~a7~0 && 19 == ~a26~0) || (17 == ~a26~0 && !(1 == ~a7~0))) || (18 == ~a26~0 && !(1 == ~a7~0))) && 3 == calculate_output_~input#1) && 17 == ~a4~0) && 1 == ~a3~0) && 1 == ~a25~0); 16774#L195 assume !((1 == ~a25~0 && 16 == ~a28~0 && (1 == ~a1~0 && ((((18 == ~a26~0 && !(1 == ~a7~0)) && 19 == ~a14~0) || ((19 == ~a26~0 && !(1 == ~a7~0)) && 19 == ~a14~0)) || (20 == ~a14~0 && 1 == ~a7~0 && 17 == ~a26~0)) && 5 == calculate_output_~input#1) && 1 == ~a3~0) && 17 == ~a4~0); 16773#L202 assume !(1 == ~a1~0 && 16 == ~a4~0 && ((((((17 == ~a26~0 || 18 == ~a26~0) && 3 == calculate_output_~input#1) && 16 == ~a28~0) && 1 == ~a7~0) && 1 == ~a25~0) && !(1 == ~a3~0)) && 19 == ~a14~0); 16772#L208 assume !(16 == ~a4~0 && 1 == ~a25~0 && 17 == ~a28~0 && ((19 == ~a14~0 && (1 == calculate_output_~input#1 && (18 == ~a26~0 || 19 == ~a26~0)) && 1 == ~a7~0) && !(1 == ~a3~0)) && 1 == ~a1~0); 16771#L214 assume !(1 == ~a25~0 && (((1 == ~a3~0 && ((((19 == ~a26~0 && !(1 == ~a7~0)) && 19 == ~a14~0) || (20 == ~a14~0 && 1 == ~a7~0 && 17 == ~a26~0)) || ((1 == ~a7~0 && 18 == ~a26~0) && 20 == ~a14~0)) && 3 == calculate_output_~input#1) && 15 == ~a28~0) && 1 == ~a1~0) && 18 == ~a4~0); 16770#L220 assume !(16 == ~a28~0 && 1 == ~a3~0 && 19 == ~a14~0 && ((18 == ~a4~0 && !(1 == ~a7~0) && 5 == calculate_output_~input#1 && (18 == ~a26~0 || 19 == ~a26~0)) && 1 == ~a25~0) && 1 == ~a1~0); 16769#L227 assume !((!(1 == ~a3~0) && ((((((1 == ~a7~0 && 19 == ~a26~0) || (!(1 == ~a7~0) && 17 == ~a26~0)) && 2 == calculate_output_~input#1) && 17 == ~a4~0) && 1 == ~a25~0) && 15 == ~a28~0) && 19 == ~a14~0) && 1 == ~a1~0); 16768#L234 assume !(((17 == ~a28~0 && (((2 == calculate_output_~input#1 && (((18 == ~a26~0 && 1 == ~a7~0) || (19 == ~a26~0 && 1 == ~a7~0)) || (!(1 == ~a7~0) && 17 == ~a26~0))) && 18 == ~a14~0) && 1 == ~a25~0) && 18 == ~a4~0) && 1 == ~a3~0) && 1 == ~a1~0); 16767#L240 assume !((((1 == ~a3~0 && (1 == ~a25~0 && (4 == calculate_output_~input#1 && 1 == ~a7~0) && 20 == ~a14~0) && 1 == ~a1~0) && 17 == ~a4~0) && 17 == ~a28~0) && 18 == ~a26~0); 14008#L246 assume !(1 == ~a1~0 && 18 == ~a4~0 && ((!(1 == ~a7~0) && 19 == ~a14~0 && (5 == calculate_output_~input#1 && (17 == ~a26~0 || 18 == ~a26~0)) && 1 == ~a25~0) && 15 == ~a28~0) && 1 == ~a3~0); 12530#L252 assume !(1 == ~a25~0 && 18 == ~a4~0 && 1 == ~a1~0 && 16 == ~a28~0 && ((2 == calculate_output_~input#1 && ((!(1 == ~a7~0) && 18 == ~a26~0) || (1 == ~a7~0 && 19 == ~a26~0) || (17 == ~a26~0 && !(1 == ~a7~0)))) && 18 == ~a14~0) && !(1 == ~a3~0)); 12531#L259 assume !((18 == ~a4~0 && (16 == ~a28~0 && 1 == ~a3~0 && 18 == ~a14~0 && ((!(1 == ~a7~0) && 17 == ~a26~0) || (18 == ~a26~0 && 1 == ~a7~0) || (1 == ~a7~0 && 19 == ~a26~0)) && 2 == calculate_output_~input#1) && 1 == ~a1~0) && 1 == ~a25~0); 14187#L265 assume (!(1 == ~a7~0) && 16 == ~a28~0 && 1 == ~a25~0 && 1 == ~a1~0 && !(1 == ~a3~0) && (5 == calculate_output_~input#1 && 19 == ~a14~0) && 18 == ~a26~0) && 18 == ~a4~0;~a26~0 := 19;~a7~0 := 1;~a14~0 := 20;calculate_output_#res#1 := 23; 12290#calculate_output_returnLabel#1 main_#t~ret13#1 := calculate_output_#res#1;havoc calculate_output_#t~ret9#1, calculate_output_~input#1;havoc calculate_output_#in~input#1;assume { :end_inline_calculate_output } true;main_~output~0#1 := main_#t~ret13#1;havoc main_~input~0#1;havoc main_#t~ret13#1; 13507#L4826-2 assume !false;havoc main_~input~0#1;havoc main_#t~nondet12#1;main_~input~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 12690#L4831 [2024-10-31 21:59:37,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-10-31 21:59:37,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:37,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195470465] [2024-10-31 21:59:37,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:37,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:37,918 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:37,926 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:37,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:37,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1061643414, now seen corresponding path program 1 times [2024-10-31 21:59:37,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:37,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635038780] [2024-10-31 21:59:37,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:37,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:38,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:38,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:38,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635038780] [2024-10-31 21:59:38,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635038780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:38,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:38,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:38,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558498201] [2024-10-31 21:59:38,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:38,153 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 21:59:38,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:38,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:38,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:38,154 INFO L87 Difference]: Start difference. First operand 4919 states and 7654 transitions. cyclomatic complexity: 2738 Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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)