./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC --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 cea4cc3548129351800c62333a8b3afa818cc0cede5b8fec1c7e8b8079e480c6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:09:55,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:09:55,956 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-24 01:09:55,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:09:55,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:09:56,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:09:56,002 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:09:56,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:09:56,003 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:09:56,003 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:09:56,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:09:56,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:09:56,003 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:09:56,003 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-24 01:09:56,003 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-24 01:09:56,004 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-24 01:09:56,004 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-24 01:09:56,004 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-24 01:09:56,004 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-24 01:09:56,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:09:56,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-24 01:09:56,004 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:09:56,004 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:09:56,004 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:09:56,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:09:56,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-24 01:09:56,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-24 01:09:56,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-24 01:09:56,005 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:09:56,005 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:09:56,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:09:56,005 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-24 01:09:56,005 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:09:56,005 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:09:56,008 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:09:56,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:09:56,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:09:56,009 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-24 01:09:56,009 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-24 01:09:56,010 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_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC 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 -> cea4cc3548129351800c62333a8b3afa818cc0cede5b8fec1c7e8b8079e480c6 [2024-11-24 01:09:56,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:09:56,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:09:56,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:09:56,357 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:09:56,357 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:09:56,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2024-11-24 01:09:59,363 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/data/307a764e1/6feb443269a940daa9faa963a2cc744b/FLAGac621f2cb [2024-11-24 01:09:59,673 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:09:59,673 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2024-11-24 01:09:59,693 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/data/307a764e1/6feb443269a940daa9faa963a2cc744b/FLAGac621f2cb [2024-11-24 01:09:59,714 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/data/307a764e1/6feb443269a940daa9faa963a2cc744b [2024-11-24 01:09:59,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:09:59,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:09:59,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:09:59,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:09:59,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:09:59,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:09:59" (1/1) ... [2024-11-24 01:09:59,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7328d333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:59, skipping insertion in model container [2024-11-24 01:09:59,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:09:59" (1/1) ... [2024-11-24 01:09:59,769 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:10:00,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:10:00,121 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:10:00,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:10:00,231 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:10:00,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00 WrapperNode [2024-11-24 01:10:00,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:10:00,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:10:00,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:10:00,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:10:00,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,290 INFO L138 Inliner]: procedures = 24, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 365 [2024-11-24 01:10:00,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:10:00,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:10:00,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:10:00,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:10:00,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,324 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:10:00,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,332 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,334 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:10:00,348 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:10:00,348 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:10:00,348 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:10:00,349 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (1/1) ... [2024-11-24 01:10:00,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:10:00,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:10:00,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:10:00,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-24 01:10:00,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:10:00,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:10:00,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:10:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:10:00,559 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:10:00,561 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:10:01,165 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-24 01:10:01,165 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:10:01,177 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:10:01,177 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:10:01,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:10:01 BoogieIcfgContainer [2024-11-24 01:10:01,177 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:10:01,179 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-24 01:10:01,179 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-24 01:10:01,185 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-24 01:10:01,186 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 01:10:01,186 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 24.11 01:09:59" (1/3) ... [2024-11-24 01:10:01,187 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d184a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 01:10:01, skipping insertion in model container [2024-11-24 01:10:01,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 01:10:01,188 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:00" (2/3) ... [2024-11-24 01:10:01,188 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d184a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 01:10:01, skipping insertion in model container [2024-11-24 01:10:01,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 01:10:01,188 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:10:01" (3/3) ... [2024-11-24 01:10:01,189 INFO L363 chiAutomizerObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2024-11-24 01:10:01,262 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-24 01:10:01,262 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-24 01:10:01,262 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-24 01:10:01,262 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-24 01:10:01,263 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-24 01:10:01,263 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-24 01:10:01,263 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-24 01:10:01,263 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-24 01:10:01,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.7227722772277227) internal successors, (174), 101 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:10:01,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 60 [2024-11-24 01:10:01,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 01:10:01,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 01:10:01,302 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:10:01,303 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:10:01,303 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-24 01:10:01,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.7227722772277227) internal successors, (174), 101 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:10:01,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 60 [2024-11-24 01:10:01,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 01:10:01,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 01:10:01,313 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:10:01,313 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:10:01,321 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(50, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~alive5~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~ret30#1, main_#t~ret31#1, main_#t~post32#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;havoc main_#t~nondet4#1;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;assume 0 == main_#t~nondet8#1 || 1 == main_#t~nondet8#1;~mode1~0 := (if 0 == main_#t~nondet8#1 % 256 then 0 else 1);havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;assume 0 == main_#t~nondet9#1 || 1 == main_#t~nondet9#1;~alive1~0 := (if 0 == main_#t~nondet9#1 % 256 then 0 else 1);havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;~id2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;~st2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;~send2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_#t~nondet13#1;assume 0 == main_#t~nondet13#1 || 1 == main_#t~nondet13#1;~mode2~0 := (if 0 == main_#t~nondet13#1 % 256 then 0 else 1);havoc main_#t~nondet13#1;havoc main_#t~nondet14#1;assume 0 == main_#t~nondet14#1 || 1 == main_#t~nondet14#1;~alive2~0 := (if 0 == main_#t~nondet14#1 % 256 then 0 else 1);havoc main_#t~nondet14#1;havoc main_#t~nondet15#1;~id3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;~st3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;~send3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;assume 0 == main_#t~nondet18#1 || 1 == main_#t~nondet18#1;~mode3~0 := (if 0 == main_#t~nondet18#1 % 256 then 0 else 1);havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume 0 == main_#t~nondet19#1 || 1 == main_#t~nondet19#1;~alive3~0 := (if 0 == main_#t~nondet19#1 % 256 then 0 else 1);havoc main_#t~nondet19#1;havoc main_#t~nondet20#1;~id4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;havoc main_#t~nondet21#1;~st4~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_#t~nondet22#1;~send4~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;havoc main_#t~nondet23#1;assume 0 == main_#t~nondet23#1 || 1 == main_#t~nondet23#1;~mode4~0 := (if 0 == main_#t~nondet23#1 % 256 then 0 else 1);havoc main_#t~nondet23#1;havoc main_#t~nondet24#1;assume 0 == main_#t~nondet24#1 || 1 == main_#t~nondet24#1;~alive4~0 := (if 0 == main_#t~nondet24#1 % 256 then 0 else 1);havoc main_#t~nondet24#1;havoc main_#t~nondet25#1;~id5~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;havoc main_#t~nondet26#1;~st5~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;havoc main_#t~nondet27#1;~send5~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;havoc main_#t~nondet28#1;assume 0 == main_#t~nondet28#1 || 1 == main_#t~nondet28#1;~mode5~0 := (if 0 == main_#t~nondet28#1 % 256 then 0 else 1);havoc main_#t~nondet28#1;havoc main_#t~nondet29#1;assume 0 == main_#t~nondet29#1 || 1 == main_#t~nondet29#1;~alive5~0 := (if 0 == main_#t~nondet29#1 % 256 then 0 else 1);havoc main_#t~nondet29#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1;" "assume !(0 == ~r1~0);init_~tmp~0#1 := 0;" "init_#res#1 := init_~tmp~0#1;" "main_#t~ret30#1 := init_#res#1;havoc init_~tmp~0#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret30#1;havoc main_#t~ret30#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1;" "assume !(0 == assume_abort_if_not_~cond#1);" "havoc assume_abort_if_not_~cond#1;havoc assume_abort_if_not_#in~cond#1;assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;main_~i2~0#1 := 0;" [2024-11-24 01:10:01,321 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i2~0#1 < 10;" "assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0;" "assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0;" "assume !(node1_~m1~0#1 != ~nomsg~0);" "~mode1~0 := 0;" "havoc node1_~m1~0#1;assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0;" "assume 0 != ~mode2~0 % 256;node2_~m2~0#1 := ~p1_old~0;~p1_old~0 := ~nomsg~0;" "assume !(node2_~m2~0#1 != ~nomsg~0);" "~mode2~0 := 0;" "havoc node2_~m2~0#1;assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0;" "assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0;" "assume !(node3_~m3~0#1 != ~nomsg~0);" "~mode3~0 := 0;" "havoc node3_~m3~0#1;assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0;" "assume 0 != ~mode4~0 % 256;node4_~m4~0#1 := ~p3_old~0;~p3_old~0 := ~nomsg~0;" "assume !(node4_~m4~0#1 != ~nomsg~0);" "~mode4~0 := 0;" "havoc node4_~m4~0#1;assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0;" "assume !(0 != ~mode5~0 % 256);" "assume 0 != ~alive5~0 % 256;~p5_new~0 := (if (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 <= 127 then (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 else (if ~send5~0 != ~nomsg~0 && ~p5_new~0 == ~nomsg~0 then ~send5~0 else ~p5_new~0) % 256 - 256);" "~mode5~0 := 1;" "havoc node5_~m5~0#1;assume { :end_inline_node5 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1;" "assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1);check_~tmp~1#1 := 0;" "check_#res#1 := check_~tmp~1#1;" "main_#t~ret31#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret31#1;havoc main_#t~ret31#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1;" "assume !(0 == assert_~arg#1 % 256);" "havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true;main_#t~post32#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post32#1;havoc main_#t~post32#1;" [2024-11-24 01:10:01,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:01,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1984313218, now seen corresponding path program 1 times [2024-11-24 01:10:01,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:10:01,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999020338] [2024-11-24 01:10:01,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:01,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:01,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 01:10:01,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999020338] [2024-11-24 01:10:01,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999020338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:10:01,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744047361] [2024-11-24 01:10:01,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:01,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:10:01,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:10:01,783 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:10:01,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:10:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:01,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:10:01,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:10:01,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:10:01,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744047361] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:10:01,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:10:01,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-24 01:10:01,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488723576] [2024-11-24 01:10:01,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:10:01,994 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-24 01:10:01,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:01,995 INFO L85 PathProgramCache]: Analyzing trace with hash 2070398591, now seen corresponding path program 1 times [2024-11-24 01:10:01,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:10:01,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932488823] [2024-11-24 01:10:01,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:01,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:02,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 01:10:02,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932488823] [2024-11-24 01:10:02,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932488823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:10:02,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003160943] [2024-11-24 01:10:02,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:02,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:10:02,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:10:02,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:10:02,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:10:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:02,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:10:02,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:10:02,555 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:10:02,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003160943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:10:02,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:10:02,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-24 01:10:02,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502350644] [2024-11-24 01:10:02,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:10:02,657 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-24 01:10:02,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-24 01:10:02,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:10:02,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:10:02,690 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.7227722772277227) internal successors, (174), 101 states have internal predecessors, (174), 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2024-11-24 01:10:02,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:02,824 INFO L93 Difference]: Finished difference Result 104 states and 172 transitions. [2024-11-24 01:10:02,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 172 transitions. [2024-11-24 01:10:02,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2024-11-24 01:10:02,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 96 states and 133 transitions. [2024-11-24 01:10:02,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2024-11-24 01:10:02,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2024-11-24 01:10:02,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 133 transitions. [2024-11-24 01:10:02,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-24 01:10:02,848 INFO L218 hiAutomatonCegarLoop]: Abstraction has 96 states and 133 transitions. [2024-11-24 01:10:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states and 133 transitions. [2024-11-24 01:10:02,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-24 01:10:02,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.3854166666666667) internal successors, (133), 95 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:10:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 133 transitions. [2024-11-24 01:10:02,883 INFO L240 hiAutomatonCegarLoop]: Abstraction has 96 states and 133 transitions. [2024-11-24 01:10:02,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:10:02,889 INFO L425 stractBuchiCegarLoop]: Abstraction has 96 states and 133 transitions. [2024-11-24 01:10:02,890 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-24 01:10:02,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 133 transitions. [2024-11-24 01:10:02,894 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2024-11-24 01:10:02,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 01:10:02,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 01:10:02,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:10:02,898 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:10:02,898 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(50, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~alive5~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~ret30#1, main_#t~ret31#1, main_#t~post32#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;havoc main_#t~nondet4#1;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;assume 0 == main_#t~nondet8#1 || 1 == main_#t~nondet8#1;~mode1~0 := (if 0 == main_#t~nondet8#1 % 256 then 0 else 1);havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;assume 0 == main_#t~nondet9#1 || 1 == main_#t~nondet9#1;~alive1~0 := (if 0 == main_#t~nondet9#1 % 256 then 0 else 1);havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;~id2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;~st2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;~send2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_#t~nondet13#1;assume 0 == main_#t~nondet13#1 || 1 == main_#t~nondet13#1;~mode2~0 := (if 0 == main_#t~nondet13#1 % 256 then 0 else 1);havoc main_#t~nondet13#1;havoc main_#t~nondet14#1;assume 0 == main_#t~nondet14#1 || 1 == main_#t~nondet14#1;~alive2~0 := (if 0 == main_#t~nondet14#1 % 256 then 0 else 1);havoc main_#t~nondet14#1;havoc main_#t~nondet15#1;~id3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;~st3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;~send3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;assume 0 == main_#t~nondet18#1 || 1 == main_#t~nondet18#1;~mode3~0 := (if 0 == main_#t~nondet18#1 % 256 then 0 else 1);havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume 0 == main_#t~nondet19#1 || 1 == main_#t~nondet19#1;~alive3~0 := (if 0 == main_#t~nondet19#1 % 256 then 0 else 1);havoc main_#t~nondet19#1;havoc main_#t~nondet20#1;~id4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;havoc main_#t~nondet21#1;~st4~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_#t~nondet22#1;~send4~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;havoc main_#t~nondet23#1;assume 0 == main_#t~nondet23#1 || 1 == main_#t~nondet23#1;~mode4~0 := (if 0 == main_#t~nondet23#1 % 256 then 0 else 1);havoc main_#t~nondet23#1;havoc main_#t~nondet24#1;assume 0 == main_#t~nondet24#1 || 1 == main_#t~nondet24#1;~alive4~0 := (if 0 == main_#t~nondet24#1 % 256 then 0 else 1);havoc main_#t~nondet24#1;havoc main_#t~nondet25#1;~id5~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;havoc main_#t~nondet26#1;~st5~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;havoc main_#t~nondet27#1;~send5~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;havoc main_#t~nondet28#1;assume 0 == main_#t~nondet28#1 || 1 == main_#t~nondet28#1;~mode5~0 := (if 0 == main_#t~nondet28#1 % 256 then 0 else 1);havoc main_#t~nondet28#1;havoc main_#t~nondet29#1;assume 0 == main_#t~nondet29#1 || 1 == main_#t~nondet29#1;~alive5~0 := (if 0 == main_#t~nondet29#1 % 256 then 0 else 1);havoc main_#t~nondet29#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1;" "assume 0 == ~r1~0;" "assume (if ~alive1~0 % 256 % 4294967296 <= 2147483647 then ~alive1~0 % 256 % 4294967296 else ~alive1~0 % 256 % 4294967296 - 4294967296) + (if ~alive2~0 % 256 % 4294967296 <= 2147483647 then ~alive2~0 % 256 % 4294967296 else ~alive2~0 % 256 % 4294967296 - 4294967296) + (if ~alive3~0 % 256 % 4294967296 <= 2147483647 then ~alive3~0 % 256 % 4294967296 else ~alive3~0 % 256 % 4294967296 - 4294967296) + (if ~alive4~0 % 256 % 4294967296 <= 2147483647 then ~alive4~0 % 256 % 4294967296 else ~alive4~0 % 256 % 4294967296 - 4294967296) + (if ~alive5~0 % 256 % 4294967296 <= 2147483647 then ~alive5~0 % 256 % 4294967296 else ~alive5~0 % 256 % 4294967296 - 4294967296) >= 1;" "assume ~id1~0 >= 0;" "assume 0 == ~st1~0;" "assume ~send1~0 == ~id1~0;" "assume 0 == (if ~mode1~0 % 256 % 4294967296 <= 2147483647 then ~mode1~0 % 256 % 4294967296 else ~mode1~0 % 256 % 4294967296 - 4294967296);" "assume ~id2~0 >= 0;" "assume 0 == ~st2~0;" "assume ~send2~0 == ~id2~0;" "assume 0 == (if ~mode2~0 % 256 % 4294967296 <= 2147483647 then ~mode2~0 % 256 % 4294967296 else ~mode2~0 % 256 % 4294967296 - 4294967296);" "assume ~id3~0 >= 0;" "assume 0 == ~st3~0;" "assume ~send3~0 == ~id3~0;" "assume 0 == (if ~mode3~0 % 256 % 4294967296 <= 2147483647 then ~mode3~0 % 256 % 4294967296 else ~mode3~0 % 256 % 4294967296 - 4294967296);" "assume ~id4~0 >= 0;" "assume 0 == ~st4~0;" "assume ~send4~0 == ~id4~0;" "assume 0 == (if ~mode4~0 % 256 % 4294967296 <= 2147483647 then ~mode4~0 % 256 % 4294967296 else ~mode4~0 % 256 % 4294967296 - 4294967296);" "assume ~id5~0 >= 0;" "assume 0 == ~st5~0;" "assume ~send5~0 == ~id5~0;" "assume 0 == (if ~mode5~0 % 256 % 4294967296 <= 2147483647 then ~mode5~0 % 256 % 4294967296 else ~mode5~0 % 256 % 4294967296 - 4294967296);" "assume ~id1~0 != ~id2~0;" "assume ~id1~0 != ~id3~0;" "assume ~id1~0 != ~id4~0;" "assume ~id1~0 != ~id5~0;" "assume ~id2~0 != ~id3~0;" "assume ~id2~0 != ~id4~0;" "assume ~id2~0 != ~id5~0;" "assume ~id3~0 != ~id4~0;" "assume ~id3~0 != ~id5~0;" "assume ~id4~0 != ~id5~0;init_~tmp~0#1 := 1;" "init_#res#1 := init_~tmp~0#1;" "main_#t~ret30#1 := init_#res#1;havoc init_~tmp~0#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret30#1;havoc main_#t~ret30#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1;" "assume !(0 == assume_abort_if_not_~cond#1);" "havoc assume_abort_if_not_~cond#1;havoc assume_abort_if_not_#in~cond#1;assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;main_~i2~0#1 := 0;" [2024-11-24 01:10:02,899 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i2~0#1 < 10;" "assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0;" "assume !(0 != ~mode1~0 % 256);" "assume 0 != ~alive1~0 % 256;~p1_new~0 := (if (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 <= 127 then (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 else (if ~send1~0 != ~nomsg~0 && ~p1_new~0 == ~nomsg~0 then ~send1~0 else ~p1_new~0) % 256 - 256);" "~mode1~0 := 1;" "havoc node1_~m1~0#1;assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0;" "assume !(0 != ~mode2~0 % 256);" "assume 0 != ~alive2~0 % 256;~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);" "~mode2~0 := 1;" "havoc node2_~m2~0#1;assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0;" "assume 0 != ~mode3~0 % 256;node3_~m3~0#1 := ~p2_old~0;~p2_old~0 := ~nomsg~0;" "assume !(node3_~m3~0#1 != ~nomsg~0);" "~mode3~0 := 0;" "havoc node3_~m3~0#1;assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0;" "assume !(0 != ~mode4~0 % 256);" "assume 0 != ~alive4~0 % 256;~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);" "~mode4~0 := 1;" "havoc node4_~m4~0#1;assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0;" "assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0;" "assume !(node5_~m5~0#1 != ~nomsg~0);" "~mode5~0 := 0;" "havoc node5_~m5~0#1;assume { :end_inline_node5 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1;" "assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1);check_~tmp~1#1 := 0;" "check_#res#1 := check_~tmp~1#1;" "main_#t~ret31#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret31#1;havoc main_#t~ret31#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1;" "assume !(0 == assert_~arg#1 % 256);" "havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true;main_#t~post32#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post32#1;havoc main_#t~post32#1;" [2024-11-24 01:10:02,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:02,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1707437673, now seen corresponding path program 1 times [2024-11-24 01:10:02,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:10:02,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281149501] [2024-11-24 01:10:02,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:02,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:10:02,995 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:10:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:10:03,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:10:03,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:03,105 INFO L85 PathProgramCache]: Analyzing trace with hash 223952828, now seen corresponding path program 1 times [2024-11-24 01:10:03,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:10:03,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685421754] [2024-11-24 01:10:03,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:03,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:03,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 01:10:03,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685421754] [2024-11-24 01:10:03,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685421754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:10:03,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032642650] [2024-11-24 01:10:03,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:03,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:10:03,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:10:03,389 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:10:03,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:10:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:03,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 01:10:03,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:10:03,516 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:10:03,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032642650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:10:03,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:10:03,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-24 01:10:03,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182604645] [2024-11-24 01:10:03,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:10:03,587 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-24 01:10:03,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-24 01:10:03,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:10:03,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:10:03,588 INFO L87 Difference]: Start difference. First operand 96 states and 133 transitions. cyclomatic complexity: 38 Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:10:03,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:03,627 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2024-11-24 01:10:03,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 135 transitions. [2024-11-24 01:10:03,629 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2024-11-24 01:10:03,630 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 96 states and 131 transitions. [2024-11-24 01:10:03,630 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2024-11-24 01:10:03,630 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2024-11-24 01:10:03,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 131 transitions. [2024-11-24 01:10:03,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-24 01:10:03,635 INFO L218 hiAutomatonCegarLoop]: Abstraction has 96 states and 131 transitions. [2024-11-24 01:10:03,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states and 131 transitions. [2024-11-24 01:10:03,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-24 01:10:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.3645833333333333) internal successors, (131), 95 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:10:03,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 131 transitions. [2024-11-24 01:10:03,643 INFO L240 hiAutomatonCegarLoop]: Abstraction has 96 states and 131 transitions. [2024-11-24 01:10:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:10:03,645 INFO L425 stractBuchiCegarLoop]: Abstraction has 96 states and 131 transitions. [2024-11-24 01:10:03,645 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-24 01:10:03,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 131 transitions. [2024-11-24 01:10:03,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 58 [2024-11-24 01:10:03,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 01:10:03,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 01:10:03,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:10:03,648 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:10:03,648 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(50, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~p5~0 := 0;~p5_old~0 := 0;~p5_new~0 := 0;~id5~0 := 0;~st5~0 := 0;~send5~0 := 0;~mode5~0 := 0;~alive5~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~ret30#1, main_#t~ret31#1, main_#t~post32#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;havoc main_#t~nondet4#1;~r1~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;~id1~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;~st1~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;~send1~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;assume 0 == main_#t~nondet8#1 || 1 == main_#t~nondet8#1;~mode1~0 := (if 0 == main_#t~nondet8#1 % 256 then 0 else 1);havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;assume 0 == main_#t~nondet9#1 || 1 == main_#t~nondet9#1;~alive1~0 := (if 0 == main_#t~nondet9#1 % 256 then 0 else 1);havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;~id2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;~st2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;~send2~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_#t~nondet13#1;assume 0 == main_#t~nondet13#1 || 1 == main_#t~nondet13#1;~mode2~0 := (if 0 == main_#t~nondet13#1 % 256 then 0 else 1);havoc main_#t~nondet13#1;havoc main_#t~nondet14#1;assume 0 == main_#t~nondet14#1 || 1 == main_#t~nondet14#1;~alive2~0 := (if 0 == main_#t~nondet14#1 % 256 then 0 else 1);havoc main_#t~nondet14#1;havoc main_#t~nondet15#1;~id3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;~st3~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_#t~nondet17#1;~send3~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;assume 0 == main_#t~nondet18#1 || 1 == main_#t~nondet18#1;~mode3~0 := (if 0 == main_#t~nondet18#1 % 256 then 0 else 1);havoc main_#t~nondet18#1;havoc main_#t~nondet19#1;assume 0 == main_#t~nondet19#1 || 1 == main_#t~nondet19#1;~alive3~0 := (if 0 == main_#t~nondet19#1 % 256 then 0 else 1);havoc main_#t~nondet19#1;havoc main_#t~nondet20#1;~id4~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;havoc main_#t~nondet21#1;~st4~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_#t~nondet22#1;~send4~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;havoc main_#t~nondet23#1;assume 0 == main_#t~nondet23#1 || 1 == main_#t~nondet23#1;~mode4~0 := (if 0 == main_#t~nondet23#1 % 256 then 0 else 1);havoc main_#t~nondet23#1;havoc main_#t~nondet24#1;assume 0 == main_#t~nondet24#1 || 1 == main_#t~nondet24#1;~alive4~0 := (if 0 == main_#t~nondet24#1 % 256 then 0 else 1);havoc main_#t~nondet24#1;havoc main_#t~nondet25#1;~id5~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;havoc main_#t~nondet26#1;~st5~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;havoc main_#t~nondet27#1;~send5~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;havoc main_#t~nondet28#1;assume 0 == main_#t~nondet28#1 || 1 == main_#t~nondet28#1;~mode5~0 := (if 0 == main_#t~nondet28#1 % 256 then 0 else 1);havoc main_#t~nondet28#1;havoc main_#t~nondet29#1;assume 0 == main_#t~nondet29#1 || 1 == main_#t~nondet29#1;~alive5~0 := (if 0 == main_#t~nondet29#1 % 256 then 0 else 1);havoc main_#t~nondet29#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1;" "assume 0 == ~r1~0;" "assume (if ~alive1~0 % 256 % 4294967296 <= 2147483647 then ~alive1~0 % 256 % 4294967296 else ~alive1~0 % 256 % 4294967296 - 4294967296) + (if ~alive2~0 % 256 % 4294967296 <= 2147483647 then ~alive2~0 % 256 % 4294967296 else ~alive2~0 % 256 % 4294967296 - 4294967296) + (if ~alive3~0 % 256 % 4294967296 <= 2147483647 then ~alive3~0 % 256 % 4294967296 else ~alive3~0 % 256 % 4294967296 - 4294967296) + (if ~alive4~0 % 256 % 4294967296 <= 2147483647 then ~alive4~0 % 256 % 4294967296 else ~alive4~0 % 256 % 4294967296 - 4294967296) + (if ~alive5~0 % 256 % 4294967296 <= 2147483647 then ~alive5~0 % 256 % 4294967296 else ~alive5~0 % 256 % 4294967296 - 4294967296) >= 1;" "assume ~id1~0 >= 0;" "assume 0 == ~st1~0;" "assume ~send1~0 == ~id1~0;" "assume 0 == (if ~mode1~0 % 256 % 4294967296 <= 2147483647 then ~mode1~0 % 256 % 4294967296 else ~mode1~0 % 256 % 4294967296 - 4294967296);" "assume ~id2~0 >= 0;" "assume 0 == ~st2~0;" "assume ~send2~0 == ~id2~0;" "assume 0 == (if ~mode2~0 % 256 % 4294967296 <= 2147483647 then ~mode2~0 % 256 % 4294967296 else ~mode2~0 % 256 % 4294967296 - 4294967296);" "assume ~id3~0 >= 0;" "assume 0 == ~st3~0;" "assume ~send3~0 == ~id3~0;" "assume 0 == (if ~mode3~0 % 256 % 4294967296 <= 2147483647 then ~mode3~0 % 256 % 4294967296 else ~mode3~0 % 256 % 4294967296 - 4294967296);" "assume ~id4~0 >= 0;" "assume 0 == ~st4~0;" "assume ~send4~0 == ~id4~0;" "assume 0 == (if ~mode4~0 % 256 % 4294967296 <= 2147483647 then ~mode4~0 % 256 % 4294967296 else ~mode4~0 % 256 % 4294967296 - 4294967296);" "assume ~id5~0 >= 0;" "assume 0 == ~st5~0;" "assume ~send5~0 == ~id5~0;" "assume 0 == (if ~mode5~0 % 256 % 4294967296 <= 2147483647 then ~mode5~0 % 256 % 4294967296 else ~mode5~0 % 256 % 4294967296 - 4294967296);" "assume ~id1~0 != ~id2~0;" "assume ~id1~0 != ~id3~0;" "assume ~id1~0 != ~id4~0;" "assume ~id1~0 != ~id5~0;" "assume ~id2~0 != ~id3~0;" "assume ~id2~0 != ~id4~0;" "assume ~id2~0 != ~id5~0;" "assume ~id3~0 != ~id4~0;" "assume ~id3~0 != ~id5~0;" "assume ~id4~0 != ~id5~0;init_~tmp~0#1 := 1;" "init_#res#1 := init_~tmp~0#1;" "main_#t~ret30#1 := init_#res#1;havoc init_~tmp~0#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret30#1;havoc main_#t~ret30#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := main_~i2~0#1;havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1;" "assume !(0 == assume_abort_if_not_~cond#1);" "havoc assume_abort_if_not_~cond#1;havoc assume_abort_if_not_#in~cond#1;assume { :end_inline_assume_abort_if_not } true;~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~nomsg~0;~p5_new~0 := ~nomsg~0;main_~i2~0#1 := 0;" [2024-11-24 01:10:03,651 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i2~0#1 < 10;" "assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0;" "assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0#1 := ~p5_old~0;~p5_old~0 := ~nomsg~0;" "assume !(node1_~m1~0#1 != ~nomsg~0);" "~mode1~0 := 0;" "havoc node1_~m1~0#1;assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~m2~0#1;havoc node2_~m2~0#1;node2_~m2~0#1 := ~nomsg~0;" "assume !(0 != ~mode2~0 % 256);" "assume 0 != ~alive2~0 % 256;~p2_new~0 := (if (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 <= 127 then (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 else (if ~send2~0 != ~nomsg~0 && ~p2_new~0 == ~nomsg~0 then ~send2~0 else ~p2_new~0) % 256 - 256);" "~mode2~0 := 1;" "havoc node2_~m2~0#1;assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~m3~0#1;havoc node3_~m3~0#1;node3_~m3~0#1 := ~nomsg~0;" "assume !(0 != ~mode3~0 % 256);" "assume 0 != ~alive3~0 % 256;~p3_new~0 := (if (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 <= 127 then (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 else (if ~send3~0 != ~nomsg~0 && ~p3_new~0 == ~nomsg~0 then ~send3~0 else ~p3_new~0) % 256 - 256);" "~mode3~0 := 1;" "havoc node3_~m3~0#1;assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true;havoc node4_~m4~0#1;havoc node4_~m4~0#1;node4_~m4~0#1 := ~nomsg~0;" "assume !(0 != ~mode4~0 % 256);" "assume 0 != ~alive4~0 % 256;~p4_new~0 := (if (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 <= 127 then (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 else (if ~send4~0 != ~nomsg~0 && ~p4_new~0 == ~nomsg~0 then ~send4~0 else ~p4_new~0) % 256 - 256);" "~mode4~0 := 1;" "havoc node4_~m4~0#1;assume { :end_inline_node4 } true;assume { :begin_inline_node5 } true;havoc node5_~m5~0#1;havoc node5_~m5~0#1;node5_~m5~0#1 := ~nomsg~0;" "assume 0 != ~mode5~0 % 256;node5_~m5~0#1 := ~p4_old~0;~p4_old~0 := ~nomsg~0;" "assume !(node5_~m5~0#1 != ~nomsg~0);" "~mode5~0 := 0;" "havoc node5_~m5~0#1;assume { :end_inline_node5 } true;~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;~p5_old~0 := ~p5_new~0;~p5_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1;" "assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 + ~st5~0 <= 1;" "assume ~r1~0 < 5;check_~tmp~1#1 := 1;" "check_#res#1 := check_~tmp~1#1;" "main_#t~ret31#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret31#1;havoc main_#t~ret31#1;assume { :begin_inline_assert } true;assert_#in~arg#1 := (if 0 == main_~c1~0#1 then 0 else 1);havoc assert_~arg#1;assert_~arg#1 := assert_#in~arg#1;" "assume !(0 == assert_~arg#1 % 256);" "havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true;main_#t~post32#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post32#1;havoc main_#t~post32#1;" [2024-11-24 01:10:03,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:03,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1707437673, now seen corresponding path program 2 times [2024-11-24 01:10:03,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:10:03,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854778633] [2024-11-24 01:10:03,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:03,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:10:03,721 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:10:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:10:03,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:10:03,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:03,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1592995335, now seen corresponding path program 1 times [2024-11-24 01:10:03,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:10:03,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376814724] [2024-11-24 01:10:03,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:03,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:10:03,828 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:10:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:10:03,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:10:03,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:03,865 INFO L85 PathProgramCache]: Analyzing trace with hash 862593693, now seen corresponding path program 1 times [2024-11-24 01:10:03,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:10:03,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060628291] [2024-11-24 01:10:03,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:03,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:04,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 01:10:04,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060628291] [2024-11-24 01:10:04,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060628291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:10:04,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122088810] [2024-11-24 01:10:04,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:04,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:10:04,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:10:04,010 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:10:04,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_528920da-c6ac-42f6-8b4d-45510dec8a45/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:10:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:04,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:10:04,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:10:04,268 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:10:04,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122088810] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:10:04,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:10:04,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-24 01:10:04,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032019115] [2024-11-24 01:10:04,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:10:07,587 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 01:10:07,588 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 01:10:07,588 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 01:10:07,588 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 01:10:07,588 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-24 01:10:07,589 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:10:07,589 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 01:10:07,589 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 01:10:07,589 INFO L132 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_Iteration3_Loop [2024-11-24 01:10:07,589 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 01:10:07,589 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 01:10:07,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,671 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,688 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,711 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:07,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:08,728 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:08,741 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:08,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:08,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:10:10,215 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 20