./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/fragtest_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/fragtest_simple.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB --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 be3b53cc5f9badbf5402cafcfa5766831674eb009261bc7c1bcbe9580aece38e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:30:29,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:30:29,365 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 20:30:29,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:30:29,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:30:29,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:30:29,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:30:29,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:30:29,424 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:30:29,424 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:30:29,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:30:29,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:30:29,427 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:30:29,427 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 20:30:29,428 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 20:30:29,428 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 20:30:29,428 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 20:30:29,428 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 20:30:29,428 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 20:30:29,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:30:29,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 20:30:29,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:30:29,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:30:29,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:30:29,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:30:29,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 20:30:29,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 20:30:29,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 20:30:29,430 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:30:29,430 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:30:29,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:30:29,431 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 20:30:29,431 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:30:29,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:30:29,431 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:30:29,431 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:30:29,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:30:29,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 20:30:29,432 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 20:30:29,432 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB 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 -> be3b53cc5f9badbf5402cafcfa5766831674eb009261bc7c1bcbe9580aece38e [2024-11-27 20:30:29,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:30:29,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:30:29,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:30:29,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:30:29,809 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:30:29,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loop-invgen/fragtest_simple.i [2024-11-27 20:30:33,565 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/data/199a7f16d/1407d52c6d3446faaa109cdd049f9778/FLAGceb32be9a [2024-11-27 20:30:33,922 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:30:33,923 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/sv-benchmarks/c/loop-invgen/fragtest_simple.i [2024-11-27 20:30:33,933 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/data/199a7f16d/1407d52c6d3446faaa109cdd049f9778/FLAGceb32be9a [2024-11-27 20:30:33,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/data/199a7f16d/1407d52c6d3446faaa109cdd049f9778 [2024-11-27 20:30:33,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:30:33,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:30:33,969 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:30:33,969 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:30:33,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:30:33,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:30:33" (1/1) ... [2024-11-27 20:30:33,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e35d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:33, skipping insertion in model container [2024-11-27 20:30:33,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:30:33" (1/1) ... [2024-11-27 20:30:34,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:30:34,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:30:34,272 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:30:34,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:30:34,321 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:30:34,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34 WrapperNode [2024-11-27 20:30:34,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:30:34,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:30:34,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:30:34,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:30:34,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,370 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-11-27 20:30:34,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:30:34,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:30:34,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:30:34,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:30:34,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,405 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:30:34,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,413 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,423 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:30:34,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:30:34,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:30:34,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:30:34,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (1/1) ... [2024-11-27 20:30:34,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:34,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:34,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:34,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 20:30:34,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:30:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:30:34,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:30:34,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:30:34,613 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:30:34,616 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:30:34,809 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-27 20:30:34,809 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:30:34,819 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:30:34,819 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 20:30:34,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:34 BoogieIcfgContainer [2024-11-27 20:30:34,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:30:34,821 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 20:30:34,821 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 20:30:34,832 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 20:30:34,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:30:34,833 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 08:30:33" (1/3) ... [2024-11-27 20:30:34,834 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7770e397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:30:34, skipping insertion in model container [2024-11-27 20:30:34,835 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:30:34,835 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:34" (2/3) ... [2024-11-27 20:30:34,836 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7770e397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:30:34, skipping insertion in model container [2024-11-27 20:30:34,836 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:30:34,836 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:34" (3/3) ... [2024-11-27 20:30:34,837 INFO L363 chiAutomizerObserver]: Analyzing ICFG fragtest_simple.i [2024-11-27 20:30:34,915 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 20:30:34,915 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 20:30:34,916 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 20:30:34,916 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 20:30:34,916 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 20:30:34,916 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 20:30:34,916 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 20:30:34,917 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 20:30:34,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:34,941 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2024-11-27 20:30:34,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:30:34,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:30:34,947 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:30:34,947 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:30:34,947 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 20:30:34,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:34,949 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2024-11-27 20:30:34,949 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:30:34,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:30:34,949 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:30:34,950 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:30:34,960 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~i~0#1, main_~pvlen~0#1, main_~tmp___1~0#1, main_~k~0#1, main_~n~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~pvlen~0#1;havoc main_~tmp___1~0#1;main_~k~0#1 := 0;havoc main_~n~0#1;main_~i~0#1 := 0;havoc main_#t~nondet1#1;main_~pvlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2024-11-27 20:30:34,960 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet2#1;" "assume 0 != main_#t~nondet2#1 && main_~i~0#1 <= 1000000;havoc main_#t~nondet2#1;" "main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-27 20:30:34,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:34,967 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-27 20:30:34,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:30:34,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483654861] [2024-11-27 20:30:34,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:34,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:35,068 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:30:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:35,094 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:30:35,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:35,098 INFO L85 PathProgramCache]: Analyzing trace with hash 35849, now seen corresponding path program 1 times [2024-11-27 20:30:35,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:30:35,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268339399] [2024-11-27 20:30:35,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:35,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:35,113 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:30:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:35,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:30:35,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:35,120 INFO L85 PathProgramCache]: Analyzing trace with hash 28694791, now seen corresponding path program 1 times [2024-11-27 20:30:35,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:30:35,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42570588] [2024-11-27 20:30:35,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:35,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:35,134 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:30:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:35,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:30:35,233 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:30:35,234 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:30:35,234 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:30:35,234 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:30:35,234 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:30:35,234 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:35,234 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:30:35,235 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:30:35,235 INFO L132 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration1_Loop [2024-11-27 20:30:35,235 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:30:35,235 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:30:35,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:35,272 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:35,340 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:30:35,341 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:30:35,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:35,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:35,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:35,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-27 20:30:35,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:30:35,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:35,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:35,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:35,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:35,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:35,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:30:35,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:35,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-27 20:30:35,441 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:30:35,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:35,446 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:30:35,446 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:30:35,446 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:30:35,446 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:30:35,447 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:30:35,447 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:35,447 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:30:35,447 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:30:35,447 INFO L132 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration1_Loop [2024-11-27 20:30:35,447 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:30:35,447 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:30:35,448 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:35,461 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:35,498 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:30:35,503 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:30:35,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:35,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:35,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:35,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-27 20:30:35,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:30:35,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:30:35,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:30:35,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:30:35,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:30:35,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:30:35,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:30:35,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:30:35,546 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:30:35,552 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:30:35,560 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-27 20:30:35,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:35,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:35,566 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:35,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-27 20:30:35,571 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:30:35,572 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:30:35,572 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:30:35,573 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 2000001 Supporting invariants [] [2024-11-27 20:30:35,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:35,589 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:30:35,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:35,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:30:35,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:35,706 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:30:35,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:35,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:35,782 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-27 20:30:35,785 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:35,861 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 61 transitions. Complement of second has 8 states. [2024-11-27 20:30:35,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-27 20:30:35,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:35,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2024-11-27 20:30:35,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-27 20:30:35,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:30:35,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-27 20:30:35,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:30:35,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-27 20:30:35,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:30:35,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 61 transitions. [2024-11-27 20:30:35,881 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-11-27 20:30:35,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 20 states and 27 transitions. [2024-11-27 20:30:35,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-27 20:30:35,886 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-11-27 20:30:35,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2024-11-27 20:30:35,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:30:35,888 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 27 transitions. [2024-11-27 20:30:35,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2024-11-27 20:30:35,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-27 20:30:35,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2024-11-27 20:30:35,925 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 27 transitions. [2024-11-27 20:30:35,925 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2024-11-27 20:30:35,925 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 20:30:35,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2024-11-27 20:30:35,926 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-11-27 20:30:35,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:30:35,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:30:35,927 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-27 20:30:35,927 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:30:35,927 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~i~0#1, main_~pvlen~0#1, main_~tmp___1~0#1, main_~k~0#1, main_~n~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~pvlen~0#1;havoc main_~tmp___1~0#1;main_~k~0#1 := 0;havoc main_~n~0#1;main_~i~0#1 := 0;havoc main_#t~nondet1#1;main_~pvlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "havoc main_#t~nondet2#1;" "assume !(0 != main_#t~nondet2#1 && main_~i~0#1 <= 1000000);havoc main_#t~nondet2#1;" "assume !(main_~i~0#1 > main_~pvlen~0#1);" "main_~i~0#1 := 0;" [2024-11-27 20:30:35,927 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1 && main_~i~0#1 <= 1000000;havoc main_#t~nondet3#1;" "main_~tmp___1~0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~k~0#1 := 1 + main_~k~0#1;" [2024-11-27 20:30:35,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:35,928 INFO L85 PathProgramCache]: Analyzing trace with hash 889540714, now seen corresponding path program 1 times [2024-11-27 20:30:35,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:30:35,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206573947] [2024-11-27 20:30:35,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:35,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:35,938 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:30:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:35,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:30:35,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:35,949 INFO L85 PathProgramCache]: Analyzing trace with hash 56702, now seen corresponding path program 1 times [2024-11-27 20:30:35,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:30:35,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666782182] [2024-11-27 20:30:35,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:35,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:35,956 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:30:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:35,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:30:35,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:35,968 INFO L85 PathProgramCache]: Analyzing trace with hash 359221365, now seen corresponding path program 1 times [2024-11-27 20:30:35,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:30:35,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512273127] [2024-11-27 20:30:35,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:35,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:35,992 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:30:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:36,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:30:36,079 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:30:36,079 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:30:36,080 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:30:36,080 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:30:36,080 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:30:36,080 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:36,080 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:30:36,080 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:30:36,080 INFO L132 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration2_Loop [2024-11-27 20:30:36,080 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:30:36,080 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:30:36,082 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:36,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:36,096 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:36,155 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:30:36,156 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:30:36,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:36,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:36,158 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:36,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-27 20:30:36,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:30:36,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:36,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:36,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:36,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:36,202 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:36,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-27 20:30:36,205 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:30:36,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:36,256 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:30:36,257 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0#1=-1}, {ULTIMATE.start_main_~k~0#1=5}, {ULTIMATE.start_main_~k~0#1=-3}] Lambdas: [6, 1, 1] Nus: [1, 0] [2024-11-27 20:30:36,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:36,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:36,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:36,277 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:36,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-27 20:30:36,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:30:36,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:36,305 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:30:36,305 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:30:36,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:36,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:36,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:36,322 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:36,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-27 20:30:36,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:30:36,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:36,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-27 20:30:36,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:36,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:36,363 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:36,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-27 20:30:36,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:30:36,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:36,414 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:30:36,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-27 20:30:36,420 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:30:36,420 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:30:36,420 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:30:36,421 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:30:36,421 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:30:36,421 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:36,421 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:30:36,421 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:30:36,421 INFO L132 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration2_Loop [2024-11-27 20:30:36,421 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:30:36,421 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:30:36,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:36,485 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:36,492 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:36,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:36,564 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:30:36,565 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:30:36,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:36,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:36,569 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:36,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-27 20:30:36,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:30:36,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:30:36,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:30:36,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:30:36,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:30:36,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:30:36,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:30:36,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:30:36,599 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:30:36,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-27 20:30:36,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:36,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:36,614 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:36,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-27 20:30:36,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:30:36,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:30:36,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:30:36,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:30:36,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:30:36,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:30:36,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:30:36,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:30:36,642 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:30:36,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:36,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:36,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:36,658 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:36,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-27 20:30:36,662 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:30:36,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:30:36,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:30:36,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:30:36,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:30:36,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:30:36,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:30:36,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:30:36,688 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:30:36,693 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:30:36,693 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-27 20:30:36,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:36,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:36,696 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:36,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-27 20:30:36,701 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:30:36,701 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:30:36,701 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:30:36,701 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 2000001 Supporting invariants [] [2024-11-27 20:30:36,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-27 20:30:36,717 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:30:36,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:36,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:30:36,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:36,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:30:36,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:36,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:36,847 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-27 20:30:36,847 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:36,908 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 42 states and 55 transitions. Complement of second has 8 states. [2024-11-27 20:30:36,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-27 20:30:36,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:36,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2024-11-27 20:30:36,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-27 20:30:36,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:30:36,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 9 letters. Loop has 3 letters. [2024-11-27 20:30:36,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:30:36,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 6 letters. [2024-11-27 20:30:36,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:30:36,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 55 transitions. [2024-11-27 20:30:36,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-27 20:30:36,922 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 25 states and 32 transitions. [2024-11-27 20:30:36,922 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-27 20:30:36,922 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-27 20:30:36,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2024-11-27 20:30:36,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:30:36,925 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 32 transitions. [2024-11-27 20:30:36,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2024-11-27 20:30:36,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-11-27 20:30:36,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:36,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2024-11-27 20:30:36,930 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2024-11-27 20:30:36,931 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2024-11-27 20:30:36,931 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 20:30:36,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2024-11-27 20:30:36,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-27 20:30:36,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:30:36,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:30:36,932 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:36,933 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-27 20:30:36,933 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~i~0#1, main_~pvlen~0#1, main_~tmp___1~0#1, main_~k~0#1, main_~n~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~pvlen~0#1;havoc main_~tmp___1~0#1;main_~k~0#1 := 0;havoc main_~n~0#1;main_~i~0#1 := 0;havoc main_#t~nondet1#1;main_~pvlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "havoc main_#t~nondet2#1;" "assume !(0 != main_#t~nondet2#1 && main_~i~0#1 <= 1000000);havoc main_#t~nondet2#1;" "assume !(main_~i~0#1 > main_~pvlen~0#1);" "main_~i~0#1 := 0;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1 && main_~i~0#1 <= 1000000);havoc main_#t~nondet3#1;" "main_~j~0#1 := 0;main_~n~0#1 := main_~i~0#1;" "assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" [2024-11-27 20:30:36,933 INFO L749 eck$LassoCheckResult]: Loop: "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_~k~0#1 := main_~k~0#1 - 1;main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1;" "assume !(main_~j~0#1 >= main_~n~0#1);" "assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" [2024-11-27 20:30:36,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:36,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1614413029, now seen corresponding path program 1 times [2024-11-27 20:30:36,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:30:36,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490901147] [2024-11-27 20:30:36,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:36,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:36,966 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:30:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:36,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:30:36,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:36,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2897972, now seen corresponding path program 1 times [2024-11-27 20:30:36,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:30:36,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538971007] [2024-11-27 20:30:36,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:36,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:37,013 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:30:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:37,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:30:37,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:37,032 INFO L85 PathProgramCache]: Analyzing trace with hash -2020269288, now seen corresponding path program 1 times [2024-11-27 20:30:37,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:30:37,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570195108] [2024-11-27 20:30:37,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:37,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:37,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:30:37,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570195108] [2024-11-27 20:30:37,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570195108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:37,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752953659] [2024-11-27 20:30:37,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:37,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:37,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:37,287 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:37,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:30:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:37,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:30:37,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:37,434 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:37,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752953659] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:30:37,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:30:37,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-27 20:30:37,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867547666] [2024-11-27 20:30:37,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:30:37,626 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:30:37,626 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:30:37,626 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:30:37,626 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:30:37,626 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:30:37,626 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:37,626 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:30:37,626 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:30:37,626 INFO L132 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration3_Loop [2024-11-27 20:30:37,626 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:30:37,626 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:30:37,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:37,632 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:37,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:37,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:37,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:37,758 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:30:37,758 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:30:37,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:37,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:37,761 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:37,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-27 20:30:37,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:30:37,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:37,786 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:30:37,786 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:30:37,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:37,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:37,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:37,800 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:37,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-27 20:30:37,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:30:37,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:37,826 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:30:37,826 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:30:37,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:37,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:37,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:37,840 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:37,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-27 20:30:37,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:30:37,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:37,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-27 20:30:37,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:37,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:37,880 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:37,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-27 20:30:37,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:30:37,887 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:37,924 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:30:37,924 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~i~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0#1=0}, {ULTIMATE.start_main_~i~0#1=-1}, {ULTIMATE.start_main_~i~0#1=0}] Lambdas: [8, 1, 0] Nus: [0, 0] [2024-11-27 20:30:37,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:37,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:37,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:37,939 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:37,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-27 20:30:37,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:30:37,943 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:37,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:37,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:37,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:37,970 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:37,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-27 20:30:37,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:30:37,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:30:38,153 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:30:38,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:38,158 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:30:38,159 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:30:38,159 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:30:38,159 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:30:38,159 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:30:38,159 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:38,159 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:30:38,159 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:30:38,159 INFO L132 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration3_Loop [2024-11-27 20:30:38,159 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:30:38,159 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:30:38,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:38,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:38,170 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:38,175 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:38,185 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:30:38,259 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:30:38,259 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:30:38,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:38,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:38,262 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:38,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-27 20:30:38,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:30:38,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:30:38,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:30:38,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:30:38,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:30:38,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:30:38,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:30:38,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:30:38,289 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:30:38,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:38,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:38,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:38,304 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:38,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-27 20:30:38,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:30:38,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:30:38,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:30:38,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:30:38,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:30:38,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:30:38,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:30:38,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:30:38,329 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:30:38,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:38,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:38,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:38,342 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:38,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-27 20:30:38,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:30:38,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:30:38,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:30:38,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:30:38,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:30:38,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:30:38,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:30:38,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:30:38,371 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:30:38,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:38,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:38,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:38,385 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:38,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-27 20:30:38,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:30:38,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:30:38,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:30:38,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:30:38,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:30:38,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:30:38,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:30:38,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:30:38,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:30:38,418 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:30:38,418 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 20:30:38,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:30:38,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:38,424 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:38,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-27 20:30:38,430 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:30:38,431 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:30:38,431 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:30:38,431 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-27 20:30:38,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-27 20:30:38,442 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:30:38,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:38,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:30:38,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:38,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:30:38,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:38,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-27 20:30:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:38,637 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-27 20:30:38,637 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:38,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-27 20:30:38,666 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 37 states and 46 transitions. Complement of second has 7 states. [2024-11-27 20:30:38,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-27 20:30:38,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:38,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2024-11-27 20:30:38,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 4 letters. [2024-11-27 20:30:38,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:30:38,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 15 letters. Loop has 4 letters. [2024-11-27 20:30:38,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:30:38,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 8 letters. [2024-11-27 20:30:38,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:30:38,670 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 46 transitions. [2024-11-27 20:30:38,671 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 20:30:38,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2024-11-27 20:30:38,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-27 20:30:38,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-27 20:30:38,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-27 20:30:38,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:30:38,672 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:30:38,672 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:30:38,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:30:38,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:30:38,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:30:38,675 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:38,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:38,678 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-27 20:30:38,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-27 20:30:38,678 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 20:30:38,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:30:38,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-27 20:30:38,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-27 20:30:38,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-27 20:30:38,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:30:38,679 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:30:38,679 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:30:38,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:30:38,680 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:30:38,680 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 20:30:38,680 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:30:38,680 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 20:30:38,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-27 20:30:38,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 08:30:38 BoogieIcfgContainer [2024-11-27 20:30:38,691 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 20:30:38,691 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:30:38,691 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:30:38,692 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:30:38,692 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:34" (3/4) ... [2024-11-27 20:30:38,695 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 20:30:38,696 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:30:38,697 INFO L158 Benchmark]: Toolchain (without parser) took 4731.02ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 102.1MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:38,697 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:38,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.60ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 89.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:30:38,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.98ms. Allocated memory is still 142.6MB. Free memory was 89.1MB in the beginning and 87.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:38,698 INFO L158 Benchmark]: Boogie Preprocessor took 56.67ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 86.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:38,699 INFO L158 Benchmark]: RCFGBuilder took 389.41ms. Allocated memory is still 142.6MB. Free memory was 86.5MB in the beginning and 76.5MB in the end (delta: 10.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:30:38,699 INFO L158 Benchmark]: BuchiAutomizer took 3869.69ms. Allocated memory is still 142.6MB. Free memory was 76.1MB in the beginning and 102.1MB in the end (delta: -26.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:38,700 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 102.1MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:38,702 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.60ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 89.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.98ms. Allocated memory is still 142.6MB. Free memory was 89.1MB in the beginning and 87.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.67ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 86.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 389.41ms. Allocated memory is still 142.6MB. Free memory was 86.5MB in the beginning and 76.5MB in the end (delta: 10.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3869.69ms. Allocated memory is still 142.6MB. Free memory was 76.1MB in the beginning and 102.1MB in the end (delta: -26.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.91ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 102.1MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * i) + 2000001) and consists of 5 locations. One deterministic module has affine ranking function (((long long) -2 * i) + 2000001) and consists of 5 locations. One deterministic module has affine ranking function (((long long) -1 * j) + n) and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 37 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 69ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-27 20:30:38,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:38,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2738fa57-c2fe-4c43-8f2c-078ca8595b7c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE