./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --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_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1 --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 f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:32:25,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:32:25,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 15:32:25,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:32:25,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:32:25,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:32:25,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:32:25,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:32:25,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:32:25,412 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:32:25,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:32:25,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:32:25,413 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:32:25,413 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 15:32:25,413 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 15:32:25,413 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 15:32:25,413 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 15:32:25,413 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 15:32:25,413 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 15:32:25,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:32:25,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 15:32:25,413 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:32:25,414 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:32:25,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:32:25,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:32:25,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:32:25,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 15:32:25,415 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 15:32:25,415 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_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1 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 -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2024-12-02 15:32:25,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:32:25,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:32:25,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:32:25,667 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:32:25,667 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:32:25,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2024-12-02 15:32:28,309 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/data/c5693eabd/7a17b0cbb2b5440b87401bd67232be05/FLAGa457cd5df [2024-12-02 15:32:28,473 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:32:28,473 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2024-12-02 15:32:28,480 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/data/c5693eabd/7a17b0cbb2b5440b87401bd67232be05/FLAGa457cd5df [2024-12-02 15:32:28,494 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/data/c5693eabd/7a17b0cbb2b5440b87401bd67232be05 [2024-12-02 15:32:28,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:32:28,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:32:28,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:32:28,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:32:28,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:32:28,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618a8a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28, skipping insertion in model container [2024-12-02 15:32:28,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,520 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:32:28,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:32:28,693 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:32:28,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:32:28,744 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:32:28,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28 WrapperNode [2024-12-02 15:32:28,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:32:28,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:32:28,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:32:28,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:32:28,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,784 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 11, calls inlined = 9, statements flattened = 368 [2024-12-02 15:32:28,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:32:28,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:32:28,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:32:28,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:32:28,795 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,798 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,813 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]. [2024-12-02 15:32:28,813 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,813 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,820 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,821 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:32:28,836 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:32:28,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:32:28,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:32:28,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (1/1) ... [2024-12-02 15:32:28,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:28,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:28,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:28,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 15:32:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:32:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:32:28,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:32:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:32:28,955 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:32:28,957 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:32:29,387 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2024-12-02 15:32:29,387 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:32:29,398 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:32:29,398 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2024-12-02 15:32:29,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:32:29 BoogieIcfgContainer [2024-12-02 15:32:29,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:32:29,400 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 15:32:29,400 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 15:32:29,405 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 15:32:29,406 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 15:32:29,406 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 03:32:28" (1/3) ... [2024-12-02 15:32:29,407 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d5f9ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 03:32:29, skipping insertion in model container [2024-12-02 15:32:29,407 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 15:32:29,407 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:28" (2/3) ... [2024-12-02 15:32:29,407 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d5f9ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 03:32:29, skipping insertion in model container [2024-12-02 15:32:29,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 15:32:29,408 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:32:29" (3/3) ... [2024-12-02 15:32:29,409 INFO L363 chiAutomizerObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2024-12-02 15:32:29,459 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 15:32:29,459 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 15:32:29,459 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 15:32:29,459 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 15:32:29,459 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 15:32:29,459 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 15:32:29,459 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 15:32:29,459 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 15:32:29,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.712962962962963) internal successors, (185), 108 states have internal predecessors, (185), 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) [2024-12-02 15:32:29,485 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 16 [2024-12-02 15:32:29,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 15:32:29,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 15:32:29,490 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-12-02 15:32:29,490 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 15:32:29,490 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 15:32:29,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.712962962962963) internal successors, (185), 108 states have internal predecessors, (185), 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) [2024-12-02 15:32:29,497 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 16 [2024-12-02 15:32:29,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 15:32:29,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 15:32:29,498 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-12-02 15:32:29,498 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 15:32:29,504 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" [2024-12-02 15:32:29,504 INFO L749 eck$LassoCheckResult]: Loop: "assume base2flt_~m#1 % 4294967296 >= 33554432;" "assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2;" [2024-12-02 15:32:29,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:29,508 INFO L85 PathProgramCache]: Analyzing trace with hash 925694, now seen corresponding path program 1 times [2024-12-02 15:32:29,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:29,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309159610] [2024-12-02 15:32:29,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:29,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:29,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 15:32:29,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309159610] [2024-12-02 15:32:29,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309159610] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:32:29,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160660918] [2024-12-02 15:32:29,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:29,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:32:29,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:29,699 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:32:29,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:32:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:29,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 15:32:29,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:29,770 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:32:29,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160660918] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:32:29,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:32:29,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 3 [2024-12-02 15:32:29,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742046124] [2024-12-02 15:32:29,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:32:29,791 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 15:32:29,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:29,792 INFO L85 PathProgramCache]: Analyzing trace with hash 2409, now seen corresponding path program 1 times [2024-12-02 15:32:29,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:29,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779455784] [2024-12-02 15:32:29,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:29,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:29,804 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:32:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:29,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 15:32:29,870 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:29,871 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:29,871 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:29,871 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:29,871 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 15:32:29,871 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:29,871 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:29,871 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:29,871 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2024-12-02 15:32:29,872 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:29,872 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:29,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:29,897 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:30,010 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:30,011 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 15:32:30,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:30,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:30,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:30,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-02 15:32:30,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 15:32:30,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:30,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-12-02 15:32:30,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:30,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:30,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:30,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-02 15:32:30,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 15:32:30,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:30,071 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 15:32:30,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-02 15:32:30,073 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:30,074 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:30,074 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:30,074 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:30,074 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 15:32:30,074 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:30,074 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:30,074 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:30,074 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2024-12-02 15:32:30,074 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:30,074 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:30,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:30,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:30,178 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:30,181 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 15:32:30,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:30,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:30,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:30,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-02 15:32:30,187 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 [2024-12-02 15:32:30,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 15:32:30,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 15:32:30,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 15:32:30,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 15:32:30,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 15:32:30,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 15:32:30,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 15:32:30,210 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 15:32:30,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-12-02 15:32:30,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:30,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:30,218 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:30,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-12-02 15:32:30,221 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 [2024-12-02 15:32:30,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 15:32:30,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 15:32:30,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 15:32:30,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 15:32:30,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 15:32:30,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 15:32:30,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 15:32:30,238 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 15:32:30,242 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 15:32:30,244 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 15:32:30,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:30,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:30,248 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:30,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-12-02 15:32:30,251 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 15:32:30,252 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 15:32:30,252 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 15:32:30,252 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-12-02 15:32:30,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-12-02 15:32:30,261 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 15:32:30,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:30,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 15:32:30,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:30,315 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:32:30,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:30,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:32:30,344 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-12-02 15:32:30,346 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 109 states, 108 states have (on average 1.712962962962963) internal successors, (185), 108 states have internal predecessors, (185), 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:32:30,444 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 109 states, 108 states have (on average 1.712962962962963) internal successors, (185), 108 states have internal predecessors, (185), 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 326 states and 545 transitions. Complement of second has 6 states. [2024-12-02 15:32:30,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 15:32:30,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:32:30,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2024-12-02 15:32:30,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 4 letters. Loop has 2 letters. [2024-12-02 15:32:30,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:30,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 6 letters. Loop has 2 letters. [2024-12-02 15:32:30,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:30,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 4 letters. Loop has 4 letters. [2024-12-02 15:32:30,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:30,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 545 transitions. [2024-12-02 15:32:30,467 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 26 [2024-12-02 15:32:30,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 106 states and 172 transitions. [2024-12-02 15:32:30,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 102 [2024-12-02 15:32:30,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2024-12-02 15:32:30,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 106 states and 172 transitions. [2024-12-02 15:32:30,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 15:32:30,474 INFO L218 hiAutomatonCegarLoop]: Abstraction has 106 states and 172 transitions. [2024-12-02 15:32:30,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states and 172 transitions. [2024-12-02 15:32:30,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 90. [2024-12-02 15:32:30,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.6777777777777778) internal successors, (151), 89 states have internal predecessors, (151), 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) [2024-12-02 15:32:30,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 151 transitions. [2024-12-02 15:32:30,497 INFO L240 hiAutomatonCegarLoop]: Abstraction has 90 states and 151 transitions. [2024-12-02 15:32:30,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 15:32:30,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:32:30,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:32:30,500 INFO L87 Difference]: Start difference. First operand 90 states and 151 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-12-02 15:32:30,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:32:30,625 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2024-12-02 15:32:30,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 63 transitions. [2024-12-02 15:32:30,627 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2024-12-02 15:32:30,627 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 63 transitions. [2024-12-02 15:32:30,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2024-12-02 15:32:30,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2024-12-02 15:32:30,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 63 transitions. [2024-12-02 15:32:30,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 15:32:30,628 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2024-12-02 15:32:30,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 63 transitions. [2024-12-02 15:32:30,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2024-12-02 15:32:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 40 states have internal predecessors, (59), 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) [2024-12-02 15:32:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2024-12-02 15:32:30,630 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 59 transitions. [2024-12-02 15:32:30,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:32:30,631 INFO L425 stractBuchiCegarLoop]: Abstraction has 41 states and 59 transitions. [2024-12-02 15:32:30,632 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 15:32:30,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 59 transitions. [2024-12-02 15:32:30,632 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2024-12-02 15:32:30,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 15:32:30,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 15:32:30,633 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:32:30,633 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 15:32:30,633 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(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-12-02 15:32:30,633 INFO L749 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-12-02 15:32:30,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:30,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1807274247, now seen corresponding path program 1 times [2024-12-02 15:32:30,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:30,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051498373] [2024-12-02 15:32:30,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:30,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:30,645 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:32:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:30,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 15:32:30,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:30,656 INFO L85 PathProgramCache]: Analyzing trace with hash 4388, now seen corresponding path program 1 times [2024-12-02 15:32:30,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:30,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873629947] [2024-12-02 15:32:30,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:30,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:30,662 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:32:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:30,667 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 15:32:30,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:30,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1623767210, now seen corresponding path program 1 times [2024-12-02 15:32:30,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:30,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252275039] [2024-12-02 15:32:30,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:30,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:30,681 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:32:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:30,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 15:32:30,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-12-02 15:32:30,742 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:30,742 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:30,743 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:30,743 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:30,743 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 15:32:30,743 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:30,743 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:30,743 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:30,743 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2024-12-02 15:32:30,743 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:30,743 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:30,744 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:30,749 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:30,861 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:30,861 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 15:32:30,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:30,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:30,863 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:30,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-12-02 15:32:30,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 15:32:30,866 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:30,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-12-02 15:32:30,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:30,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:30,891 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:30,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-12-02 15:32:30,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 15:32:30,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:30,926 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 15:32:30,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-12-02 15:32:30,929 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:30,929 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:30,929 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:30,929 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:30,929 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 15:32:30,929 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:30,929 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:30,929 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:30,929 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2024-12-02 15:32:30,929 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:30,929 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:30,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:30,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:31,043 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:31,044 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 15:32:31,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:31,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:31,046 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:31,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-12-02 15:32:31,048 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 [2024-12-02 15:32:31,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 15:32:31,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 15:32:31,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 15:32:31,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 15:32:31,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 15:32:31,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 15:32:31,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 15:32:31,066 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 15:32:31,068 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 15:32:31,068 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 15:32:31,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:31,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:31,070 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:31,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-12-02 15:32:31,072 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 15:32:31,072 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 15:32:31,072 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 15:32:31,072 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-12-02 15:32:31,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-12-02 15:32:31,078 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 15:32:31,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:31,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 15:32:31,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:31,122 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:32:31,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:32:31,147 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 [2024-12-02 15:32:31,148 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 59 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2024-12-02 15:32:31,179 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 59 transitions. cyclomatic complexity: 23. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 75 states and 107 transitions. Complement of second has 5 states. [2024-12-02 15:32:31,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 15:32:31,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2024-12-02 15:32:31,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-12-02 15:32:31,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 7 letters. Loop has 2 letters. [2024-12-02 15:32:31,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:31,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 9 letters. Loop has 2 letters. [2024-12-02 15:32:31,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:31,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 7 letters. Loop has 4 letters. [2024-12-02 15:32:31,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:31,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 107 transitions. [2024-12-02 15:32:31,184 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 16 [2024-12-02 15:32:31,184 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 98 transitions. [2024-12-02 15:32:31,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2024-12-02 15:32:31,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2024-12-02 15:32:31,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 98 transitions. [2024-12-02 15:32:31,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 15:32:31,185 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 98 transitions. [2024-12-02 15:32:31,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 98 transitions. [2024-12-02 15:32:31,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 43. [2024-12-02 15:32:31,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.441860465116279) internal successors, (62), 42 states have internal predecessors, (62), 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) [2024-12-02 15:32:31,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 62 transitions. [2024-12-02 15:32:31,188 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 62 transitions. [2024-12-02 15:32:31,188 INFO L425 stractBuchiCegarLoop]: Abstraction has 43 states and 62 transitions. [2024-12-02 15:32:31,189 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 15:32:31,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 62 transitions. [2024-12-02 15:32:31,189 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2024-12-02 15:32:31,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 15:32:31,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 15:32:31,190 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:32:31,190 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 15:32:31,190 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(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-12-02 15:32:31,190 INFO L749 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-12-02 15:32:31,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:31,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1202403814, now seen corresponding path program 1 times [2024-12-02 15:32:31,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:31,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593282029] [2024-12-02 15:32:31,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:31,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:31,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 15:32:31,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593282029] [2024-12-02 15:32:31,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593282029] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:32:31,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537846617] [2024-12-02 15:32:31,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:31,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:32:31,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:31,261 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:32:31,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 15:32:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:31,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 15:32:31,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:31,316 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:32:31,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537846617] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:32:31,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:32:31,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-12-02 15:32:31,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127646442] [2024-12-02 15:32:31,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:32:31,326 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 15:32:31,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash 7076, now seen corresponding path program 1 times [2024-12-02 15:32:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:31,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298720293] [2024-12-02 15:32:31,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:31,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:31,331 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:32:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:31,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 15:32:31,367 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:31,367 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:31,367 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:31,367 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:31,368 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 15:32:31,368 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:31,368 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:31,368 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:31,368 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2024-12-02 15:32:31,368 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:31,368 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:31,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:31,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:31,479 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:31,479 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 15:32:31,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:31,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:31,482 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:31,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-12-02 15:32:31,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 15:32:31,485 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:31,503 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 15:32:31,503 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 15:32:31,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-12-02 15:32:31,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:31,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:31,507 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:31,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-12-02 15:32:31,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 15:32:31,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:31,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-12-02 15:32:31,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:31,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:31,535 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:31,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-12-02 15:32:31,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 15:32:31,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:31,562 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 15:32:31,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-12-02 15:32:31,564 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:31,564 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:31,564 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:31,565 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:31,565 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 15:32:31,565 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:31,565 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:31,565 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:31,565 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2024-12-02 15:32:31,565 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:31,565 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:31,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:31,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:31,658 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:31,658 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 15:32:31,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:31,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:31,660 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:31,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-12-02 15:32:31,662 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 [2024-12-02 15:32:31,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 15:32:31,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 15:32:31,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 15:32:31,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 15:32:31,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 15:32:31,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 15:32:31,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 15:32:31,682 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 15:32:31,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-12-02 15:32:31,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:31,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:31,693 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:31,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-12-02 15:32:31,696 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 [2024-12-02 15:32:31,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 15:32:31,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 15:32:31,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 15:32:31,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 15:32:31,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 15:32:31,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 15:32:31,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 15:32:31,714 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 15:32:31,717 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 15:32:31,717 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 15:32:31,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:31,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:31,720 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:31,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-12-02 15:32:31,723 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 15:32:31,723 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 15:32:31,723 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 15:32:31,723 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-12-02 15:32:31,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-12-02 15:32:31,733 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 15:32:31,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:31,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 15:32:31,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:31,785 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:32:31,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:31,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-12-02 15:32:31,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-12-02 15:32:31,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:32:31,821 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 [2024-12-02 15:32:31,822 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 62 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-12-02 15:32:31,849 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 62 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 69 states and 96 transitions. Complement of second has 5 states. [2024-12-02 15:32:31,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 15:32:31,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-12-02 15:32:31,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-12-02 15:32:31,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 10 letters. Loop has 2 letters. [2024-12-02 15:32:31,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:31,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 12 letters. Loop has 2 letters. [2024-12-02 15:32:31,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:31,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 10 letters. Loop has 4 letters. [2024-12-02 15:32:31,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:31,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 96 transitions. [2024-12-02 15:32:31,853 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2024-12-02 15:32:31,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 62 states and 87 transitions. [2024-12-02 15:32:31,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2024-12-02 15:32:31,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2024-12-02 15:32:31,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 87 transitions. [2024-12-02 15:32:31,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 15:32:31,854 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 87 transitions. [2024-12-02 15:32:31,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 87 transitions. [2024-12-02 15:32:31,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 45. [2024-12-02 15:32:31,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 44 states have internal predecessors, (65), 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) [2024-12-02 15:32:31,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2024-12-02 15:32:31,857 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 65 transitions. [2024-12-02 15:32:31,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 15:32:31,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:32:31,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:32:31,857 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-12-02 15:32:31,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:32:31,976 INFO L93 Difference]: Finished difference Result 58 states and 79 transitions. [2024-12-02 15:32:31,976 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 79 transitions. [2024-12-02 15:32:31,977 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2024-12-02 15:32:31,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 79 transitions. [2024-12-02 15:32:31,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2024-12-02 15:32:31,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2024-12-02 15:32:31,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 79 transitions. [2024-12-02 15:32:31,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 15:32:31,977 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 79 transitions. [2024-12-02 15:32:31,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 79 transitions. [2024-12-02 15:32:31,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 47. [2024-12-02 15:32:31,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 46 states have internal predecessors, (66), 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) [2024-12-02 15:32:31,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2024-12-02 15:32:31,980 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 66 transitions. [2024-12-02 15:32:31,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:32:31,981 INFO L425 stractBuchiCegarLoop]: Abstraction has 47 states and 66 transitions. [2024-12-02 15:32:31,982 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 15:32:31,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 66 transitions. [2024-12-02 15:32:31,982 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2024-12-02 15:32:31,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 15:32:31,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 15:32:31,983 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:32:31,983 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 15:32:31,983 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(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" "assume base2flt_~m#1 % 4294967296 >= 33554432;" [2024-12-02 15:32:31,983 INFO L749 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2;" "assume base2flt_~m#1 % 4294967296 >= 33554432;" [2024-12-02 15:32:31,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:31,984 INFO L85 PathProgramCache]: Analyzing trace with hash -417339658, now seen corresponding path program 1 times [2024-12-02 15:32:31,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:31,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822021249] [2024-12-02 15:32:31,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:31,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:32,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 15:32:32,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822021249] [2024-12-02 15:32:32,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822021249] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:32:32,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944134664] [2024-12-02 15:32:32,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:32,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:32:32,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:32,042 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:32:32,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 15:32:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:32,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:32:32,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:32,101 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:32:32,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944134664] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:32:32,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:32:32,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-12-02 15:32:32,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191486705] [2024-12-02 15:32:32,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:32:32,116 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 15:32:32,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:32,116 INFO L85 PathProgramCache]: Analyzing trace with hash 8025, now seen corresponding path program 1 times [2024-12-02 15:32:32,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:32,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798074514] [2024-12-02 15:32:32,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:32,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:32,124 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:32:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:32,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 15:32:32,168 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:32,168 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:32,168 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:32,168 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:32,168 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 15:32:32,168 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:32,168 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:32,168 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:32,168 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2024-12-02 15:32:32,168 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:32,168 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:32,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:32,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:32,293 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:32,293 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 15:32:32,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:32,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:32,295 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:32,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-12-02 15:32:32,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 15:32:32,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:32,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-12-02 15:32:32,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:32,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:32,319 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:32,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-12-02 15:32:32,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 15:32:32,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:32,348 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 15:32:32,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-12-02 15:32:32,352 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:32,352 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:32,352 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:32,352 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:32,352 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 15:32:32,352 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:32,352 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:32,352 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:32,352 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2024-12-02 15:32:32,353 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:32,353 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:32,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:32,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:32,454 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:32,454 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 15:32:32,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:32,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:32,456 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:32,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-12-02 15:32:32,458 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 [2024-12-02 15:32:32,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 15:32:32,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 15:32:32,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 15:32:32,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 15:32:32,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 15:32:32,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 15:32:32,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 15:32:32,475 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 15:32:32,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-12-02 15:32:32,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:32,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:32,483 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:32,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-12-02 15:32:32,485 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 [2024-12-02 15:32:32,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 15:32:32,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 15:32:32,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 15:32:32,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 15:32:32,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 15:32:32,497 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 15:32:32,497 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 15:32:32,500 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 15:32:32,502 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 15:32:32,502 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 15:32:32,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:32,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:32,504 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:32,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-12-02 15:32:32,506 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 15:32:32,506 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 15:32:32,506 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 15:32:32,507 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-12-02 15:32:32,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-12-02 15:32:32,515 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 15:32:32,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:32,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 15:32:32,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:32,574 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:32:32,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:32:32,593 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 [2024-12-02 15:32:32,593 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 66 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2024-12-02 15:32:32,618 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 66 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 72 states and 98 transitions. Complement of second has 5 states. [2024-12-02 15:32:32,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 15:32:32,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2024-12-02 15:32:32,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-12-02 15:32:32,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 13 letters. Loop has 2 letters. [2024-12-02 15:32:32,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:32,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 15 letters. Loop has 2 letters. [2024-12-02 15:32:32,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:32,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 66 transitions. Stem has 13 letters. Loop has 4 letters. [2024-12-02 15:32:32,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:32,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 98 transitions. [2024-12-02 15:32:32,622 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2024-12-02 15:32:32,622 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 89 transitions. [2024-12-02 15:32:32,622 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2024-12-02 15:32:32,623 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2024-12-02 15:32:32,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 89 transitions. [2024-12-02 15:32:32,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 15:32:32,623 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 89 transitions. [2024-12-02 15:32:32,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 89 transitions. [2024-12-02 15:32:32,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 49. [2024-12-02 15:32:32,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 48 states have internal predecessors, (69), 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) [2024-12-02 15:32:32,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2024-12-02 15:32:32,626 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-12-02 15:32:32,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 15:32:32,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:32:32,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:32:32,627 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2024-12-02 15:32:32,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:32:32,670 INFO L93 Difference]: Finished difference Result 59 states and 82 transitions. [2024-12-02 15:32:32,670 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 82 transitions. [2024-12-02 15:32:32,670 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-12-02 15:32:32,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 58 states and 81 transitions. [2024-12-02 15:32:32,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2024-12-02 15:32:32,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2024-12-02 15:32:32,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 81 transitions. [2024-12-02 15:32:32,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 15:32:32,672 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 81 transitions. [2024-12-02 15:32:32,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 81 transitions. [2024-12-02 15:32:32,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2024-12-02 15:32:32,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.4) internal successors, (70), 49 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:32:32,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2024-12-02 15:32:32,674 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 70 transitions. [2024-12-02 15:32:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:32:32,676 INFO L425 stractBuchiCegarLoop]: Abstraction has 50 states and 70 transitions. [2024-12-02 15:32:32,676 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 15:32:32,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 70 transitions. [2024-12-02 15:32:32,676 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-12-02 15:32:32,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 15:32:32,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 15:32:32,677 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:32:32,677 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 15:32:32,677 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(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-12-02 15:32:32,677 INFO L749 eck$LassoCheckResult]: Loop: "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" [2024-12-02 15:32:32,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:32,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1782459436, now seen corresponding path program 1 times [2024-12-02 15:32:32,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:32,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16146287] [2024-12-02 15:32:32,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:32,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:32,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 15:32:32,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16146287] [2024-12-02 15:32:32,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16146287] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:32:32,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471097439] [2024-12-02 15:32:32,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:32,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:32:32,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:32,773 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:32:32,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-12-02 15:32:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:32,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 15:32:32,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:32,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:32:32,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471097439] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:32:32,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:32:32,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-02 15:32:32,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741767762] [2024-12-02 15:32:32,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:32:32,899 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 15:32:32,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:32,899 INFO L85 PathProgramCache]: Analyzing trace with hash 9764, now seen corresponding path program 1 times [2024-12-02 15:32:32,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:32,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163546511] [2024-12-02 15:32:32,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:32,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:32,904 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:32:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:32,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 15:32:32,936 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:32,936 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:32,936 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:32,936 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:32,936 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 15:32:32,936 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:32,936 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:32,936 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:32,936 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2024-12-02 15:32:32,936 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:32,936 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:32,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:32,942 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:33,022 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:33,022 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 15:32:33,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:33,024 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:33,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-12-02 15:32:33,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 15:32:33,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:33,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-12-02 15:32:33,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:33,044 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:33,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-12-02 15:32:33,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 15:32:33,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:33,070 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 15:32:33,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-12-02 15:32:33,074 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:33,074 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:33,074 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:33,074 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:33,074 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 15:32:33,074 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,074 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:33,074 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:33,074 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2024-12-02 15:32:33,074 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:33,074 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:33,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:33,080 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:33,170 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:33,171 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 15:32:33,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:33,173 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:33,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-12-02 15:32:33,175 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 [2024-12-02 15:32:33,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 15:32:33,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 15:32:33,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 15:32:33,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 15:32:33,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 15:32:33,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 15:32:33,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 15:32:33,193 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 15:32:33,195 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 15:32:33,195 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 15:32:33,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:33,197 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:33,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-12-02 15:32:33,200 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 15:32:33,200 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 15:32:33,200 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 15:32:33,200 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2024-12-02 15:32:33,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-12-02 15:32:33,209 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 15:32:33,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:33,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 15:32:33,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:33,278 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:32:33,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:33,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:32:33,293 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 [2024-12-02 15:32:33,293 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 70 transitions. cyclomatic complexity: 25 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-12-02 15:32:33,297 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 70 transitions. cyclomatic complexity: 25. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 52 states and 72 transitions. Complement of second has 4 states. [2024-12-02 15:32:33,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 15:32:33,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-12-02 15:32:33,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-12-02 15:32:33,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 19 letters. Loop has 2 letters. [2024-12-02 15:32:33,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:33,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 21 letters. Loop has 2 letters. [2024-12-02 15:32:33,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:33,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 58 transitions. Stem has 19 letters. Loop has 4 letters. [2024-12-02 15:32:33,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:33,300 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 72 transitions. [2024-12-02 15:32:33,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 15:32:33,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 48 states and 67 transitions. [2024-12-02 15:32:33,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2024-12-02 15:32:33,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2024-12-02 15:32:33,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 67 transitions. [2024-12-02 15:32:33,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 15:32:33,301 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2024-12-02 15:32:33,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 67 transitions. [2024-12-02 15:32:33,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-12-02 15:32:33,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 47 states have internal predecessors, (67), 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) [2024-12-02 15:32:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2024-12-02 15:32:33,304 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2024-12-02 15:32:33,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 15:32:33,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:32:33,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=47, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:32:33,304 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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) [2024-12-02 15:32:33,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:32:33,410 INFO L93 Difference]: Finished difference Result 96 states and 133 transitions. [2024-12-02 15:32:33,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 133 transitions. [2024-12-02 15:32:33,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 15:32:33,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 92 states and 129 transitions. [2024-12-02 15:32:33,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2024-12-02 15:32:33,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2024-12-02 15:32:33,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 129 transitions. [2024-12-02 15:32:33,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 15:32:33,413 INFO L218 hiAutomatonCegarLoop]: Abstraction has 92 states and 129 transitions. [2024-12-02 15:32:33,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 129 transitions. [2024-12-02 15:32:33,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 62. [2024-12-02 15:32:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.403225806451613) internal successors, (87), 61 states have internal predecessors, (87), 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) [2024-12-02 15:32:33,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 87 transitions. [2024-12-02 15:32:33,416 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 87 transitions. [2024-12-02 15:32:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:32:33,417 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 87 transitions. [2024-12-02 15:32:33,417 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-12-02 15:32:33,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 87 transitions. [2024-12-02 15:32:33,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 15:32:33,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 15:32:33,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 15:32:33,418 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:32:33,418 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 15:32:33,418 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(22, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret19#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume base2flt_~m#1 % 4294967296 < 16777216;" "assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume 4278190079 == base2flt_~m#1 % 4294967296;base2flt_#t~bitwise4#1 := base2flt_~m#1;" "base2flt_~m#1 := base2flt_#t~bitwise4#1;havoc base2flt_#t~bitwise4#1;" "assume 0 == base2flt_~m#1 % 4294967296 || base2flt_~m#1 % 4294967296 == 16777216 * ((128 + base2flt_~e#1) % 4294967296) % 4294967296;base2flt_#t~bitwise5#1 := 16777216 * ((128 + base2flt_~e#1) % 4294967296);" "base2flt_~res~0#1 := base2flt_#t~bitwise5#1;havoc base2flt_#t~bitwise5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret20#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0;" "base2flt_#res#1 := base2flt_~__retres4~0#1;" "main_#t~ret21#1 := base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~bitwise4#1, base2flt_#t~bitwise5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1;" "assume !(0 == base2flt_~m#1 % 4294967296);" "assume !(base2flt_~m#1 % 4294967296 < 16777216);" [2024-12-02 15:32:33,418 INFO L749 eck$LassoCheckResult]: Loop: "assume base2flt_~m#1 % 4294967296 >= 33554432;" "assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2;" [2024-12-02 15:32:33,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:33,419 INFO L85 PathProgramCache]: Analyzing trace with hash -367429708, now seen corresponding path program 1 times [2024-12-02 15:32:33,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:33,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254339322] [2024-12-02 15:32:33,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:33,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:33,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-12-02 15:32:33,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-12-02 15:32:33,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 15:32:33,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254339322] [2024-12-02 15:32:33,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254339322] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:32:33,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774794855] [2024-12-02 15:32:33,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:33,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:32:33,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:33,515 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:32:33,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-12-02 15:32:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:33,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:32:33,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:33,628 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:32:33,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774794855] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:32:33,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:32:33,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 6 [2024-12-02 15:32:33,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599088504] [2024-12-02 15:32:33,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:32:33,644 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 15:32:33,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:33,644 INFO L85 PathProgramCache]: Analyzing trace with hash 10473, now seen corresponding path program 1 times [2024-12-02 15:32:33,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 15:32:33,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008620029] [2024-12-02 15:32:33,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:32:33,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:32:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:33,649 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:32:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:32:33,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 15:32:33,677 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:33,678 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:33,678 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:33,678 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:33,678 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 15:32:33,678 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,678 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:33,678 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:33,678 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2024-12-02 15:32:33,678 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:33,678 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:33,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:33,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:33,762 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:33,762 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 15:32:33,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:33,764 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:33,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-12-02 15:32:33,768 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 15:32:33,768 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:33,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-12-02 15:32:33,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:33,790 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:33,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-12-02 15:32:33,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 15:32:33,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 15:32:33,818 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 15:32:33,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-12-02 15:32:33,822 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 15:32:33,822 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 15:32:33,822 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 15:32:33,822 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 15:32:33,822 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 15:32:33,822 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,822 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 15:32:33,822 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 15:32:33,822 INFO L132 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2024-12-02 15:32:33,822 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 15:32:33,822 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 15:32:33,823 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:33,831 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 15:32:33,908 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 15:32:33,908 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 15:32:33,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:33,910 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:33,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-12-02 15:32:33,912 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 [2024-12-02 15:32:33,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 15:32:33,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 15:32:33,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 15:32:33,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 15:32:33,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 15:32:33,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 15:32:33,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 15:32:33,929 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 15:32:33,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-12-02 15:32:33,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:33,936 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:33,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-12-02 15:32:33,938 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 [2024-12-02 15:32:33,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 15:32:33,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 15:32:33,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 15:32:33,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 15:32:33,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 15:32:33,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 15:32:33,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 15:32:33,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 15:32:33,954 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 15:32:33,954 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 15:32:33,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 15:32:33,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:32:33,956 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 15:32:33,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-12-02 15:32:33,958 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 15:32:33,958 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 15:32:33,958 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 15:32:33,959 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2024-12-02 15:32:33,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-12-02 15:32:33,965 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 15:32:33,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:32:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:34,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 15:32:34,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:32:34,033 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:32:34,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:32:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:32:34,035 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-12-02 15:32:34,036 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 29 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-12-02 15:32:34,043 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 29. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 64 states and 90 transitions. Complement of second has 4 states. [2024-12-02 15:32:34,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 15:32:34,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-12-02 15:32:34,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-12-02 15:32:34,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 21 letters. Loop has 2 letters. [2024-12-02 15:32:34,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:34,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 23 letters. Loop has 2 letters. [2024-12-02 15:32:34,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:34,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 21 letters. Loop has 4 letters. [2024-12-02 15:32:34,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 15:32:34,045 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 90 transitions. [2024-12-02 15:32:34,046 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 15:32:34,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 0 states and 0 transitions. [2024-12-02 15:32:34,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 15:32:34,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 15:32:34,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 15:32:34,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 15:32:34,046 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 15:32:34,046 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 15:32:34,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 15:32:34,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:32:34,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:32:34,047 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:32:34,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:32:34,048 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-12-02 15:32:34,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-12-02 15:32:34,048 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 15:32:34,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 15:32:34,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 15:32:34,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 15:32:34,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 15:32:34,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 15:32:34,048 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 15:32:34,048 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 15:32:34,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:32:34,049 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 15:32:34,049 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-12-02 15:32:34,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-02 15:32:34,049 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 15:32:34,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-02 15:32:34,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 03:32:34 BoogieIcfgContainer [2024-12-02 15:32:34,058 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 15:32:34,059 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:32:34,059 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:32:34,059 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:32:34,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:32:29" (3/4) ... [2024-12-02 15:32:34,062 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 15:32:34,063 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:32:34,064 INFO L158 Benchmark]: Toolchain (without parser) took 5566.61ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 92.0MB in the beginning and 123.5MB in the end (delta: -31.4MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2024-12-02 15:32:34,064 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:32:34,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.94ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 78.6MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:32:34,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.23ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:32:34,065 INFO L158 Benchmark]: Boogie Preprocessor took 50.53ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 73.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:32:34,065 INFO L158 Benchmark]: RCFGBuilder took 562.49ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 45.7MB in the end (delta: 28.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 15:32:34,066 INFO L158 Benchmark]: BuchiAutomizer took 4658.79ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 45.5MB in the beginning and 123.5MB in the end (delta: -78.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2024-12-02 15:32:34,066 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 201.3MB. Free memory was 123.5MB in the beginning and 123.5MB in the end (delta: 39.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:32:34,068 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.94ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 78.6MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.23ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.53ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 73.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 562.49ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 45.7MB in the end (delta: 28.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 4658.79ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 45.5MB in the beginning and 123.5MB in the end (delta: -78.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 201.3MB. Free memory was 123.5MB in the beginning and 123.5MB in the end (delta: 39.1kB). 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 11 terminating modules (5 trivial, 6 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 4 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function (((long long) 2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * e) + 253) and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 3.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 127 StatesRemovedByMinimization, 8 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 [6, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 556 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 550 mSDsluCounter, 946 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 306 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 426 IncrementalHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 640 mSDtfsCounter, 426 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT5 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp60 ukn100 mio100 lsp100 div660 bol100 ite100 ukn100 eq134 hnf96 smp41 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-12-02 15:32:34,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-12-02 15:32:34,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-12-02 15:32:34,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-12-02 15:32:34,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-02 15:32:34,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 15:32:35,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:32:35,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6644bd2-be7a-4b78-bd24-d622e4303017/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE