./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem04_label44.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 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_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem04_label44.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx --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 b2088c7b17aba5b995f133304960e12d33921c686a6f5ea1b6e8ef36b0c15dde --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:19:26,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:19:27,044 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:19:27,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:19:27,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:19:27,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:19:27,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:19:27,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:19:27,090 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:19:27,091 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:19:27,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:19:27,093 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:19:27,094 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:19:27,094 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:19:27,095 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:19:27,096 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:19:27,097 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:19:27,097 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:19:27,098 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:19:27,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:19:27,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:19:27,100 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:19:27,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:19:27,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:19:27,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:19:27,103 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:19:27,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:19:27,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:19:27,105 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:19:27,106 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:19:27,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:19:27,107 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:19:27,108 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:19:27,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:19:27,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:19:27,110 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:19:27,110 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:19:27,111 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:19:27,112 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_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2088c7b17aba5b995f133304960e12d33921c686a6f5ea1b6e8ef36b0c15dde [2023-11-21 22:19:27,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:19:27,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:19:27,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:19:27,419 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:19:27,420 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:19:27,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/eca-rers2012/Problem04_label44.c [2023-11-21 22:19:30,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:19:31,529 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:19:31,529 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/sv-benchmarks/c/eca-rers2012/Problem04_label44.c [2023-11-21 22:19:31,573 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/data/32ee2cb9d/68968f3fe4da4d45a7901dc0403270ab/FLAGba136b19c [2023-11-21 22:19:31,596 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/data/32ee2cb9d/68968f3fe4da4d45a7901dc0403270ab [2023-11-21 22:19:31,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:19:31,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:19:31,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:31,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:19:31,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:19:31,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:31" (1/1) ... [2023-11-21 22:19:31,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2ceef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:31, skipping insertion in model container [2023-11-21 22:19:31,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:31" (1/1) ... [2023-11-21 22:19:31,832 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:19:33,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:33,571 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:19:34,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:34,358 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:19:34,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34 WrapperNode [2023-11-21 22:19:34,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:34,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:34,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:19:34,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:19:34,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,639 INFO L138 Inliner]: procedures = 17, calls = 12, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 5569 [2023-11-21 22:19:34,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:34,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:19:34,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:19:34,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:19:34,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,673 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,747 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:19:34,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,812 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,959 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:19:35,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:19:35,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:19:35,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:19:35,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:35,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:35,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:35,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:35,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:19:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:19:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:19:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:19:35,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:19:35,220 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:19:35,223 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:19:40,536 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:19:40,571 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:19:40,571 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:19:40,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:40 BoogieIcfgContainer [2023-11-21 22:19:40,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:19:40,575 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:19:40,576 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:19:40,580 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:19:40,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:19:40,581 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:19:31" (1/3) ... [2023-11-21 22:19:40,583 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4290546b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:19:40, skipping insertion in model container [2023-11-21 22:19:40,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:19:40,583 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (2/3) ... [2023-11-21 22:19:40,584 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4290546b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:19:40, skipping insertion in model container [2023-11-21 22:19:40,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:19:40,584 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:40" (3/3) ... [2023-11-21 22:19:40,586 INFO L332 chiAutomizerObserver]: Analyzing ICFG Problem04_label44.c [2023-11-21 22:19:40,676 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:19:40,677 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:19:40,677 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:19:40,677 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:19:40,677 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:19:40,678 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:19:40,678 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:19:40,678 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:19:40,689 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) [2023-11-21 22:19:40,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 880 [2023-11-21 22:19:40,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:40,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:40,789 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:19:40,792 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 22:19:40,793 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:19:40,796 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) [2023-11-21 22:19:40,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 880 [2023-11-21 22:19:40,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:40,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:40,831 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:19:40,831 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 22:19:40,841 INFO L748 eck$LassoCheckResult]: Stem: 133#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3);~f~0 := 6;~e~0 := 5;~d~0 := 4;~b~0 := 2;~a~0 := 1;~c~0 := 3;~u~0 := 21;~v~0 := 22;~w~0 := 23;~x~0 := 24;~y~0 := 25;~z~0 := 26;~a3~0 := 1;~a4~0 := 17;~a25~0 := 1;~a1~0 := 1;~a26~0 := 18;~a28~0 := 15;~a7~0 := 1;~a14~0 := 19; 802#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet12#1, main_#t~ret13#1, main_~input~0#1, main_~output~0#1;main_~output~0#1 := -1; 765#L4826-2true [2023-11-21 22:19:40,842 INFO L750 eck$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_#t~ret13#1;havoc main_~input~0#1; 765#L4826-2true [2023-11-21 22:19:40,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:40,849 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-21 22:19:40,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:40,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717269368] [2023-11-21 22:19:40,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:40,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:40,964 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:41,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:41,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:41,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1271452, now seen corresponding path program 1 times [2023-11-21 22:19:41,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:41,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341784477] [2023-11-21 22:19:41,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:41,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:41,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:41,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:41,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:41,098 INFO L85 PathProgramCache]: Analyzing trace with hash 889698654, now seen corresponding path program 1 times [2023-11-21 22:19:41,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:41,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706691136] [2023-11-21 22:19:41,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:41,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:41,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:41,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706691136] [2023-11-21 22:19:41,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706691136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:41,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:41,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:41,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573299352] [2023-11-21 22:19:41,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:41,828 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:19:41,829 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:19:41,829 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:19:41,829 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:19:41,830 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:19:41,830 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:41,830 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:19:41,830 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:19:41,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: Problem04_label44.c_Iteration1_Loop [2023-11-21 22:19:41,831 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:19:41,831 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:19:41,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,032 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:42,217 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-11-21 22:19:42,704 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:19:42,704 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:19:42,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:42,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:42,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:42,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:19:42,730 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:19:42,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 22:19:42,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-21 22:19:42,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:42,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:42,811 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:42,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:19:42,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:19:42,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 22:19:42,964 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:19:42,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:42,975 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:19:42,975 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:19:42,975 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:19:42,975 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:19:42,976 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:19:42,976 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:42,976 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:19:42,976 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:19:42,976 INFO L133 ssoRankerPreferences]: Filename of dumped script: Problem04_label44.c_Iteration1_Loop [2023-11-21 22:19:42,976 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:19:42,976 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:19:42,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,132 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,136 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,139 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,153 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,161 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:19:43,293 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-11-21 22:19:43,788 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:19:43,793 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:19:43,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:43,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:43,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:43,813 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:19:43,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 22:19:43,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:19:43,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:19:43,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:19:43,832 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-11-21 22:19:43,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:19:43,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:19:43,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:19:43,884 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:19:43,895 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-21 22:19:43,895 INFO L444 ModelExtractionUtils]: 5 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 22:19:43,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:19:43,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:43,921 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:43,934 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:19:43,934 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:19:43,935 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:19:43,936 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~a4~0) = 1*~a4~0 Supporting invariants [] [2023-11-21 22:19:43,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 22:19:43,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:43,978 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:19:44,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:44,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:19:44,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:44,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:19:44,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:44,242 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 [2023-11-21 22:19:44,247 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) [2023-11-21 22:19:45,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:48,739 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. [2023-11-21 22:19:48,742 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 [2023-11-21 22:19:48,748 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) [2023-11-21 22:19:48,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3357 transitions. [2023-11-21 22:19:48,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 3357 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-21 22:19:48,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:19:48,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 3357 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-21 22:19:48,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:19:48,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 3357 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-21 22:19:48,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:19:48,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3542 states and 6269 transitions. [2023-11-21 22:19:48,807 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 1698 [2023-11-21 22:19:48,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3542 states to 2528 states and 4374 transitions. [2023-11-21 22:19:48,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1701 [2023-11-21 22:19:48,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1706 [2023-11-21 22:19:48,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2528 states and 4374 transitions. [2023-11-21 22:19:48,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:19:48,850 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2528 states and 4374 transitions. [2023-11-21 22:19:48,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states and 4374 transitions. [2023-11-21 22:19:48,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 2523. [2023-11-21 22:19:48,983 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) [2023-11-21 22:19:49,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4369 transitions. [2023-11-21 22:19:49,052 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2523 states and 4369 transitions. [2023-11-21 22:19:49,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:49,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:49,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:49,057 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) [2023-11-21 22:19:53,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:53,543 INFO L93 Difference]: Finished difference Result 4980 states and 7735 transitions. [2023-11-21 22:19:53,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4980 states and 7735 transitions. [2023-11-21 22:19:53,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3272 [2023-11-21 22:19:53,637 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4980 states to 4919 states and 7654 transitions. [2023-11-21 22:19:53,637 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3275 [2023-11-21 22:19:53,643 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3275 [2023-11-21 22:19:53,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4919 states and 7654 transitions. [2023-11-21 22:19:53,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:19:53,646 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4919 states and 7654 transitions. [2023-11-21 22:19:53,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4919 states and 7654 transitions. [2023-11-21 22:19:53,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4919 to 4919. [2023-11-21 22:19:53,788 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) [2023-11-21 22:19:53,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4919 states to 4919 states and 7654 transitions. [2023-11-21 22:19:53,811 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4919 states and 7654 transitions. [2023-11-21 22:19:53,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:53,814 INFO L428 stractBuchiCegarLoop]: Abstraction has 4919 states and 7654 transitions. [2023-11-21 22:19:53,815 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:19:53,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4919 states and 7654 transitions. [2023-11-21 22:19:53,851 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3272 [2023-11-21 22:19:53,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:53,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:53,855 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 22:19:53,855 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] [2023-11-21 22:19:53,856 INFO L748 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 [2023-11-21 22:19:53,864 INFO L750 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_#t~ret13#1;havoc main_~input~0#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_#t~ret13#1;havoc main_~input~0#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 [2023-11-21 22:19:53,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:53,865 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-21 22:19:53,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:53,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27995445] [2023-11-21 22:19:53,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:53,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:53,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:53,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:53,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:53,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1061643414, now seen corresponding path program 1 times [2023-11-21 22:19:53,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:53,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930925080] [2023-11-21 22:19:53,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:53,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:54,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:54,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930925080] [2023-11-21 22:19:54,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930925080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:54,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:54,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:19:54,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522159743] [2023-11-21 22:19:54,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:54,173 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-21 22:19:54,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:54,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:54,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:54,175 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) [2023-11-21 22:19:58,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:58,535 INFO L93 Difference]: Finished difference Result 9834 states and 13563 transitions. [2023-11-21 22:19:58,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9834 states and 13563 transitions. [2023-11-21 22:19:58,622 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6544 [2023-11-21 22:19:58,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9834 states to 9834 states and 13563 transitions. [2023-11-21 22:19:58,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6547 [2023-11-21 22:19:58,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6547 [2023-11-21 22:19:58,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9834 states and 13563 transitions. [2023-11-21 22:19:58,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:19:58,721 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9834 states and 13563 transitions. [2023-11-21 22:19:58,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9834 states and 13563 transitions. [2023-11-21 22:19:58,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9834 to 9834. [2023-11-21 22:19:58,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9834 states, 9834 states have (on average 1.3791946308724832) internal successors, (13563), 9833 states have internal predecessors, (13563), 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) [2023-11-21 22:19:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9834 states to 9834 states and 13563 transitions. [2023-11-21 22:19:58,974 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9834 states and 13563 transitions. [2023-11-21 22:19:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:19:58,980 INFO L428 stractBuchiCegarLoop]: Abstraction has 9834 states and 13563 transitions. [2023-11-21 22:19:58,980 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 22:19:58,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9834 states and 13563 transitions. [2023-11-21 22:19:59,025 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6544 [2023-11-21 22:19:59,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:19:59,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:19:59,033 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 22:19:59,033 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [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, 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] [2023-11-21 22:19:59,038 INFO L748 eck$LassoCheckResult]: Stem: 27225#$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; 27226#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; 28631#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; 28697#L4831 [2023-11-21 22:19:59,039 INFO L750 eck$LassoCheckResult]: Loop: 28697#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; 35960#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); 35959#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); 35958#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)); 35957#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); 35956#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); 35955#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); 35954#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); 35953#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)); 35952#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))); 35951#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); 35950#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); 35949#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); 35947#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)); 35945#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); 35943#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); 35941#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); 35939#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); 35937#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); 35935#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); 35933#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); 35931#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)); 35929#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); 35927#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); 35925#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); 35923#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); 35922#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); 35921#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); 35919#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); 35918#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); 35917#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); 35916#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); 35915#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); 35914#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); 35912#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)); 35910#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); 35908#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); 35906#L270 assume !(((((15 == ~a28~0 && (1 == ~a1~0 && 2 == calculate_output_~input#1 && (17 == ~a26~0 || 18 == ~a26~0)) && !(1 == ~a3~0)) && 1 == ~a25~0) && 19 == ~a14~0) && 1 == ~a7~0) && 16 == ~a4~0); 35904#L275 assume !((((((!(1 == ~a7~0) && 20 == ~a14~0 && (17 == ~a26~0 || 18 == ~a26~0) && 6 == calculate_output_~input#1) && 1 == ~a25~0) && 16 == ~a4~0) && 1 == ~a1~0) && !(1 == ~a3~0)) && 15 == ~a28~0); 35902#L278 assume !(19 == ~a14~0 && 19 == ~a26~0 && 15 == ~a28~0 && (16 == ~a4~0 && !(1 == ~a3~0) && (1 == ~a25~0 && 2 == calculate_output_~input#1) && !(1 == ~a7~0)) && 1 == ~a1~0); 35900#L284 assume !((((1 == ~a25~0 && 18 == ~a4~0 && ((((1 == ~a7~0 && 18 == ~a26~0) || (19 == ~a26~0 && 1 == ~a7~0)) || (17 == ~a26~0 && !(1 == ~a7~0))) && 4 == calculate_output_~input#1) && 18 == ~a14~0) && 17 == ~a28~0) && 1 == ~a3~0) && 1 == ~a1~0); 35898#L290 assume !((16 == ~a28~0 && ((19 == ~a14~0 && ((((1 == ~a7~0 && 18 == ~a26~0) || (1 == ~a7~0 && 19 == ~a26~0)) || (!(1 == ~a7~0) && 17 == ~a26~0)) && 1 == calculate_output_~input#1) && 1 == ~a3~0) && 1 == ~a25~0) && 1 == ~a1~0) && 17 == ~a4~0); 35896#L297 assume !(1 == ~a25~0 && ((((15 == ~a28~0 && (6 == calculate_output_~input#1 && 19 == ~a14~0) && 18 == ~a26~0) && !(1 == ~a7~0)) && 17 == ~a4~0) && 1 == ~a1~0) && !(1 == ~a3~0)); 35894#L304 assume !(1 == ~a3~0 && (((4 == calculate_output_~input#1 && ((18 == ~a14~0 && 1 == ~a7~0 && 17 == ~a26~0 && 16 == ~a28~0) || (20 == ~a14~0 && (18 == ~a26~0 && 15 == ~a28~0) && !(1 == ~a7~0)) || ((!(1 == ~a7~0) && 19 == ~a26~0 && 15 == ~a28~0) && 20 == ~a14~0))) && 1 == ~a1~0) && 1 == ~a25~0) && 18 == ~a4~0); 35892#L312 assume !(20 == ~a14~0 && 1 == ~a25~0 && (1 == ~a7~0 && ((16 == ~a4~0 && 5 == calculate_output_~input#1 && (17 == ~a26~0 || 18 == ~a26~0)) && 1 == ~a1~0) && !(1 == ~a3~0)) && 15 == ~a28~0); 35890#L317 assume !(!(1 == ~a3~0) && (1 == ~a25~0 && 17 == ~a28~0 && (5 == calculate_output_~input#1 && ((20 == ~a14~0 && 18 == ~a26~0 && 1 == ~a7~0) || ((!(1 == ~a7~0) && 19 == ~a26~0) && 19 == ~a14~0) || (20 == ~a14~0 && 17 == ~a26~0 && 1 == ~a7~0))) && 16 == ~a4~0) && 1 == ~a1~0); 35888#L324 assume !(18 == ~a14~0 && 16 == ~a28~0 && ((((!(1 == ~a7~0) && 6 == calculate_output_~input#1 && (18 == ~a26~0 || 19 == ~a26~0)) && 16 == ~a4~0) && !(1 == ~a3~0)) && 1 == ~a1~0) && 1 == ~a25~0); 35886#L329 assume !(18 == ~a4~0 && 17 == ~a26~0 && 1 == ~a25~0 && 1 == ~a1~0 && ((1 == ~a7~0 && 16 == ~a28~0 && 6 == calculate_output_~input#1) && 20 == ~a14~0) && 1 == ~a3~0); 35884#L333 assume !((1 == ~a25~0 && 16 == ~a28~0 && !(1 == ~a3~0) && 16 == ~a4~0 && (1 == calculate_output_~input#1 && ((1 == ~a7~0 && 19 == ~a26~0) || (17 == ~a26~0 && !(1 == ~a7~0)))) && 1 == ~a1~0) && 20 == ~a14~0); 35882#L340 assume !(1 == ~a1~0 && 1 == ~a3~0 && (20 == ~a14~0 && 16 == ~a28~0 && (3 == calculate_output_~input#1 && (((1 == ~a7~0 && 18 == ~a26~0) || (19 == ~a26~0 && 1 == ~a7~0)) || (17 == ~a26~0 && !(1 == ~a7~0)))) && 1 == ~a25~0) && 18 == ~a4~0); 35880#L347 assume !(((18 == ~a4~0 && ((6 == calculate_output_~input#1 && ((18 == ~a14~0 && !(1 == ~a7~0) && 19 == ~a26~0) || (19 == ~a14~0 && 17 == ~a26~0 && 1 == ~a7~0))) && 1 == ~a1~0) && !(1 == ~a3~0)) && 1 == ~a25~0) && 16 == ~a28~0); 35878#L355 assume !(1 == ~a7~0 && 1 == ~a25~0 && ((1 == ~a1~0 && (17 == ~a28~0 && 2 == calculate_output_~input#1 && (17 == ~a26~0 || 18 == ~a26~0)) && 18 == ~a14~0) && 18 == ~a4~0) && !(1 == ~a3~0)); 35876#L362 assume !(((((16 == ~a28~0 && 1 == ~a25~0 && 6 == calculate_output_~input#1 && ((17 == ~a26~0 && !(1 == ~a7~0)) || (18 == ~a26~0 && 1 == ~a7~0) || (1 == ~a7~0 && 19 == ~a26~0))) && 1 == ~a1~0) && 1 == ~a3~0) && 19 == ~a14~0) && 18 == ~a4~0); 35874#L369 assume !((19 == ~a14~0 && 1 == ~a25~0 && (!(1 == ~a7~0) && 16 == ~a28~0 && 17 == ~a4~0 && 3 == calculate_output_~input#1 && !(1 == ~a3~0)) && 19 == ~a26~0) && 1 == ~a1~0); 35872#L377 assume !(((1 == ~a1~0 && ((1 == ~a3~0 && 19 == ~a14~0 && 2 == calculate_output_~input#1 && 18 == ~a4~0) && 1 == ~a7~0) && 15 == ~a28~0) && 18 == ~a26~0) && 1 == ~a25~0); 35870#L382 assume !(16 == ~a4~0 && (!(1 == ~a3~0) && 19 == ~a14~0 && 1 == ~a1~0 && (((17 == ~a26~0 || 18 == ~a26~0) && 4 == calculate_output_~input#1) && 15 == ~a28~0) && !(1 == ~a7~0)) && 1 == ~a25~0); 35868#L387 assume !(((((18 == ~a14~0 && ((1 == calculate_output_~input#1 && 1 == ~a3~0) && 17 == ~a28~0) && 18 == ~a4~0) && !(1 == ~a7~0)) && 18 == ~a26~0) && 1 == ~a1~0) && 1 == ~a25~0); 35866#L393 assume !(1 == ~a7~0 && 19 == ~a26~0 && 1 == ~a1~0 && 19 == ~a14~0 && 1 == ~a25~0 && 15 == ~a28~0 && 16 == ~a4~0 && !(1 == ~a3~0) && 5 == calculate_output_~input#1); 35864#L398 assume !(!(1 == ~a7~0) && (1 == ~a1~0 && ((!(1 == ~a3~0) && 18 == ~a14~0 && 6 == calculate_output_~input#1 && (19 == ~a26~0 || 17 == ~a26~0 || 18 == ~a26~0)) && 16 == ~a4~0) && 1 == ~a25~0) && 15 == ~a28~0); 35862#L403 assume !(16 == ~a4~0 && (!(1 == ~a3~0) && 20 == ~a14~0 && ((((17 == ~a26~0 || 18 == ~a26~0) && 4 == calculate_output_~input#1) && 15 == ~a28~0) && 1 == ~a25~0) && 1 == ~a1~0) && !(1 == ~a7~0)); 35860#L411 assume !((16 == ~a4~0 && ((19 == ~a14~0 && 1 == ~a7~0 && (1 == calculate_output_~input#1 && (17 == ~a26~0 || 18 == ~a26~0)) && !(1 == ~a3~0)) && 1 == ~a25~0) && 1 == ~a1~0) && 15 == ~a28~0); 35858#L416 assume !((((19 == ~a26~0 && 18 == ~a4~0 && (!(1 == ~a7~0) && 16 == ~a28~0 && 2 == calculate_output_~input#1) && 1 == ~a1~0) && 18 == ~a14~0) && 1 == ~a25~0) && 1 == ~a3~0); 35856#L422 assume !(((1 == ~a1~0 && 17 == ~a28~0 && 20 == ~a14~0 && 1 == ~a3~0 && (((19 == ~a26~0 && 1 == ~a7~0) || (!(1 == ~a7~0) && 17 == ~a26~0)) || (18 == ~a26~0 && !(1 == ~a7~0))) && 5 == calculate_output_~input#1) && 17 == ~a4~0) && 1 == ~a25~0); 35854#L429 assume !((1 == ~a25~0 && 18 == ~a4~0 && ((1 == ~a7~0 && (6 == calculate_output_~input#1 && 1 == ~a3~0) && 1 == ~a1~0) && 19 == ~a14~0) && 17 == ~a26~0) && 16 == ~a28~0); 35852#L434 assume !(((1 == ~a1~0 && (((((18 == ~a26~0 || 19 == ~a26~0) && 4 == calculate_output_~input#1) && 1 == ~a25~0) && !(1 == ~a3~0)) && 18 == ~a14~0) && 16 == ~a28~0) && !(1 == ~a7~0)) && 16 == ~a4~0); 35850#L440 assume !(1 == ~a1~0 && (19 == ~a14~0 && ((1 == ~a7~0 && (6 == calculate_output_~input#1 && (18 == ~a26~0 || 19 == ~a26~0)) && 17 == ~a28~0) && !(1 == ~a3~0)) && 1 == ~a25~0) && 16 == ~a4~0); 35848#L446 assume ((1 == ~a25~0 && ((1 == ~a7~0 && (2 == calculate_output_~input#1 && 20 == ~a14~0) && 17 == ~a4~0) && 15 == ~a28~0) && 18 == ~a26~0) && 1 == ~a1~0) && 1 == ~a3~0;~a14~0 := 18;~a28~0 := 17;calculate_output_#res#1 := 24; 34025#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_#t~ret13#1;havoc main_~input~0#1; 30910#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; 28697#L4831 [2023-11-21 22:19:59,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:59,040 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2023-11-21 22:19:59,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:59,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321013200] [2023-11-21 22:19:59,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:59,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:59,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:59,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:59,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:59,081 INFO L85 PathProgramCache]: Analyzing trace with hash -392581196, now seen corresponding path program 1 times [2023-11-21 22:19:59,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:59,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269900615] [2023-11-21 22:19:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:59,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:59,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:59,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:59,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:59,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1363098771, now seen corresponding path program 1 times [2023-11-21 22:19:59,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:59,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948410650] [2023-11-21 22:19:59,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:59,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:59,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:59,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:59,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948410650] [2023-11-21 22:19:59,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948410650] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:59,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:59,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:19:59,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285768082] [2023-11-21 22:19:59,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:00,158 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:20:00,158 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:20:00,158 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:20:00,158 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:20:00,159 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:20:00,159 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:00,159 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:20:00,159 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:20:00,159 INFO L133 ssoRankerPreferences]: Filename of dumped script: Problem04_label44.c_Iteration3_Loop [2023-11-21 22:20:00,159 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:20:00,159 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:20:00,161 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,165 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,174 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,177 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,185 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,191 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,193 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,203 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,344 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:20:00,344 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:20:00,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:00,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:00,346 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:00,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 22:20:00,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:20:00,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:20:00,436 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:20:00,436 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~a3~0=1} Honda state: {~a3~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:20:00,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:00,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:00,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:00,461 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:00,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 22:20:00,463 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:20:00,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:20:00,491 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:20:00,491 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~a1~0=1} Honda state: {~a1~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:20:00,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:00,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:00,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:00,518 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:00,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:20:00,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:20:00,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 22:20:00,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:00,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:00,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:00,581 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:00,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 22:20:00,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:20:00,585 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:20:00,600 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:20:00,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:00,614 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:20:00,614 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:20:00,614 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:20:00,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:20:00,615 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:20:00,615 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:00,615 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:20:00,615 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:20:00,615 INFO L133 ssoRankerPreferences]: Filename of dumped script: Problem04_label44.c_Iteration3_Loop [2023-11-21 22:20:00,615 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:20:00,615 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:20:00,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,636 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,640 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,642 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,646 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,649 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,664 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,671 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:20:00,800 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:20:00,801 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:20:00,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:00,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:00,802 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:00,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-21 22:20:00,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:20:00,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:20:00,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:20:00,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:20:00,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:20:00,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:20:00,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:20:00,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:20:00,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:20:00,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:00,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:00,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:00,846 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:00,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-21 22:20:00,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:20:00,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:20:00,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:20:00,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:20:00,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:20:00,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:20:00,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:20:00,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:20:00,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:20:00,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:00,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:00,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:00,875 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:00,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-21 22:20:00,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:20:00,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:20:00,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:20:00,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:20:00,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:20:00,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:20:00,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:20:00,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:20:00,890 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:20:00,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:00,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:00,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:00,906 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:00,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-21 22:20:00,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:20:00,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:20:00,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:20:00,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:20:00,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:20:00,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:20:00,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:20:00,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:20:00,943 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:20:00,949 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 22:20:00,949 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-21 22:20:00,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:20:00,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:00,951 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:00,965 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:20:00,965 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:20:00,965 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:20:00,965 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~a14~0) = 1*~a14~0 Supporting invariants [] [2023-11-21 22:20:00,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-21 22:20:00,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:00,988 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:20:01,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:01,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:20:01,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:01,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:20:01,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:01,227 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 [2023-11-21 22:20:01,227 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9834 states and 13563 transitions. cyclomatic complexity: 3732 Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:05,330 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9834 states and 13563 transitions. cyclomatic complexity: 3732. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29546 states and 38382 transitions. Complement of second has 5 states. [2023-11-21 22:20:05,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-21 22:20:05,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:05,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1487 transitions. [2023-11-21 22:20:05,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 1487 transitions. Stem has 3 letters. Loop has 69 letters. [2023-11-21 22:20:05,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:20:05,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 1487 transitions. Stem has 72 letters. Loop has 69 letters. [2023-11-21 22:20:05,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:20:05,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 1487 transitions. Stem has 3 letters. Loop has 138 letters. [2023-11-21 22:20:05,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:20:05,350 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29546 states and 38382 transitions. [2023-11-21 22:20:05,541 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 13088 [2023-11-21 22:20:05,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d6df09-5255-4bec-bd7b-b06d3a5e31d1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:05,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29546 states to 29546 states and 38382 transitions. [2023-11-21 22:20:05,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13102 [2023-11-21 22:20:05,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13119 [2023-11-21 22:20:05,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29546 states and 38382 transitions. [2023-11-21 22:20:05,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:20:05,921 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29546 states and 38382 transitions. [2023-11-21 22:20:05,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29546 states and 38382 transitions. [2023-11-21 22:20:06,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29546 to 29529. [2023-11-21 22:20:06,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29529 states, 29529 states have (on average 1.2992312641809747) internal successors, (38365), 29528 states have internal predecessors, (38365), 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) [2023-11-21 22:20:06,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29529 states to 29529 states and 38365 transitions. [2023-11-21 22:20:06,540 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29529 states and 38365 transitions. [2023-11-21 22:20:06,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:06,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:06,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:06,542 INFO L87 Difference]: Start difference. First operand 29529 states and 38365 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:11,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:11,496 INFO L93 Difference]: Finished difference Result 32848 states and 41709 transitions. [2023-11-21 22:20:11,496 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32848 states and 41709 transitions. [2023-11-21 22:20:11,658 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13920 [2023-11-21 22:20:11,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32848 states to 32848 states and 41709 transitions. [2023-11-21 22:20:11,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13937 [2023-11-21 22:20:11,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13937 [2023-11-21 22:20:11,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32848 states and 41709 transitions. [2023-11-21 22:20:11,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:20:11,807 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32848 states and 41709 transitions. [2023-11-21 22:20:11,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32848 states and 41709 transitions. [2023-11-21 22:20:12,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32848 to 32801. [2023-11-21 22:20:12,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32801 states, 32801 states have (on average 1.2697478735404408) internal successors, (41649), 32800 states have internal predecessors, (41649), 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) [2023-11-21 22:20:12,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32801 states to 32801 states and 41649 transitions. [2023-11-21 22:20:12,279 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32801 states and 41649 transitions. [2023-11-21 22:20:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:20:12,282 INFO L428 stractBuchiCegarLoop]: Abstraction has 32801 states and 41649 transitions. [2023-11-21 22:20:12,282 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-21 22:20:12,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32801 states and 41649 transitions.