./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 66e52001defd7e771c0df8c73cdf4ec6b3d90072c8faf9f52fce6d45ff1a83e7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:16:39,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:16:39,380 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:16:39,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:16:39,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:16:39,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:16:39,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:16:39,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:16:39,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:16:39,446 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:16:39,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:16:39,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:16:39,447 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:16:39,448 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:16:39,448 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:16:39,448 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:16:39,449 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:16:39,453 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:16:39,453 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:16:39,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:16:39,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:16:39,454 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:16:39,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:16:39,454 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:16:39,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:16:39,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:16:39,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:16:39,455 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:16:39,456 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:16:39,456 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:16:39,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:16:39,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:16:39,457 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:16:39,470 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:16:39,470 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:16:39,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:16:39,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:16:39,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:16:39,471 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:16:39,472 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66e52001defd7e771c0df8c73cdf4ec6b3d90072c8faf9f52fce6d45ff1a83e7 [2024-10-31 22:16:39,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:16:39,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:16:39,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:16:39,812 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:16:39,817 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:16:39,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.UNBOUNDED.pals.c Unable to find full path for "g++" [2024-10-31 22:16:41,813 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:16:42,037 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:16:42,038 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/sv-benchmarks/c/seq-mthreaded/pals_lcr.3.1.ufo.UNBOUNDED.pals.c [2024-10-31 22:16:42,048 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/data/bf7d20ed0/04eaf7cdbc3b4bf482f6df3c843be9bd/FLAGb63b5ea73 [2024-10-31 22:16:42,414 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/data/bf7d20ed0/04eaf7cdbc3b4bf482f6df3c843be9bd [2024-10-31 22:16:42,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:16:42,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:16:42,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:42,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:16:42,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:16:42,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f3849a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42, skipping insertion in model container [2024-10-31 22:16:42,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,462 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:16:42,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:42,809 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:16:42,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:42,876 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:16:42,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42 WrapperNode [2024-10-31 22:16:42,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:42,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:42,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:16:42,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:16:42,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,925 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 213 [2024-10-31 22:16:42,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:42,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:16:42,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:16:42,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:16:42,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,944 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,969 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:16:42,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:42,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:16:42,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:16:42,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:16:42,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:16:42,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (1/1) ... [2024-10-31 22:16:43,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:43,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:43,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:43,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eade96c-8881-4db8-a297-b97af4c77d6c/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:16:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:16:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:16:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:16:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:16:43,173 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:16:43,175 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:16:43,544 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-10-31 22:16:43,544 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:16:43,571 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:16:43,571 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:16:43,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:43 BoogieIcfgContainer [2024-10-31 22:16:43,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:16:43,573 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:16:43,573 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:16:43,577 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:16:43,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:43,580 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:16:42" (1/3) ... [2024-10-31 22:16:43,581 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b063d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:16:43, skipping insertion in model container [2024-10-31 22:16:43,582 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:43,582 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:42" (2/3) ... [2024-10-31 22:16:43,582 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b063d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:16:43, skipping insertion in model container [2024-10-31 22:16:43,582 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:43,583 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:43" (3/3) ... [2024-10-31 22:16:43,585 INFO L332 chiAutomizerObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals.c [2024-10-31 22:16:43,646 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:16:43,647 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:16:43,647 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:16:43,647 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:16:43,647 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:16:43,647 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:16:43,648 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:16:43,648 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:16:43,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 58 states, 57 states have (on average 1.6666666666666667) internal successors, (95), 57 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:43,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2024-10-31 22:16:43,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:43,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:43,679 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:43,679 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:43,679 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:16:43,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 58 states, 57 states have (on average 1.6666666666666667) internal successors, (95), 57 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:43,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2024-10-31 22:16:43,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:43,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:43,685 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:43,685 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:43,693 INFO L745 eck$LassoCheckResult]: Stem: 26#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(34, 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;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0; 36#L-1true 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~ret17#1, main_#t~ret18#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;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;assume 0 == main_#t~nondet12#1 || 1 == main_#t~nondet12#1;~mode2~0 := (if 0 == main_#t~nondet12#1 % 256 then 0 else 1);havoc main_#t~nondet12#1;havoc main_#t~nondet13#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_#t~nondet14#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_#t~nondet15#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;assume 0 == main_#t~nondet16#1 || 1 == main_#t~nondet16#1;~mode3~0 := (if 0 == main_#t~nondet16#1 % 256 then 0 else 1);havoc main_#t~nondet16#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 53#L137true assume !(0 == (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296));init_~tmp~0#1 := 0; 7#L137-1true init_#res#1 := init_~tmp~0#1; 16#init_returnLabel#1true main_#t~ret17#1 := init_#res#1;havoc init_~tmp~0#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret17#1;havoc main_#t~ret17#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; 37#L22true assume !(0 == assume_abort_if_not_~cond#1); 22#L21true 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;main_~i2~0#1 := 0; 3#L262-2true [2024-10-31 22:16:43,694 INFO L747 eck$LassoCheckResult]: Loop: 3#L262-2true assume !false;assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 57#L57true assume !(0 != ~mode1~0 % 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; 46#L57-2true 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; 19#L88true assume !(0 != ~mode2~0 % 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; 9#L88-2true 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; 39#L113true assume !(0 != ~mode3~0 % 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; 42#L113-2true havoc node3_~m3~0#1;assume { :end_inline_node3 } 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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 6#L210true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; 23#L210-1true check_#res#1 := check_~tmp~1#1; 11#check_returnLabel#1true main_#t~ret18#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret18#1;havoc main_#t~ret18#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; 43#L285true assume !(0 == assert_~arg#1 % 256); 20#L280true havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true; 3#L262-2true [2024-10-31 22:16:43,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:43,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1892699938, now seen corresponding path program 1 times [2024-10-31 22:16:43,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:43,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953582404] [2024-10-31 22:16:43,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:43,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:44,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:44,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953582404] [2024-10-31 22:16:44,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953582404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:44,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:44,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:44,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303323577] [2024-10-31 22:16:44,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:44,140 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:16:44,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:44,141 INFO L85 PathProgramCache]: Analyzing trace with hash 920486573, now seen corresponding path program 1 times [2024-10-31 22:16:44,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:44,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978989517] [2024-10-31 22:16:44,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:44,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:44,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:44,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978989517] [2024-10-31 22:16:44,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978989517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:44,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:44,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:44,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975481379] [2024-10-31 22:16:44,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:44,627 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:16:44,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:44,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:16:44,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:16:44,676 INFO L87 Difference]: Start difference. First operand has 58 states, 57 states have (on average 1.6666666666666667) internal successors, (95), 57 states have internal predecessors, (95), 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) [2024-10-31 22:16:44,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:44,757 INFO L93 Difference]: Finished difference Result 56 states and 89 transitions. [2024-10-31 22:16:44,760 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 89 transitions. [2024-10-31 22:16:44,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2024-10-31 22:16:44,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 52 states and 70 transitions. [2024-10-31 22:16:44,773 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2024-10-31 22:16:44,774 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2024-10-31 22:16:44,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 70 transitions. [2024-10-31 22:16:44,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:16:44,775 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 70 transitions. [2024-10-31 22:16:44,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 70 transitions. [2024-10-31 22:16:44,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-10-31 22:16:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 51 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) [2024-10-31 22:16:44,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions. [2024-10-31 22:16:44,804 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 70 transitions. [2024-10-31 22:16:44,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:16:44,810 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 70 transitions. [2024-10-31 22:16:44,810 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:16:44,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 70 transitions. [2024-10-31 22:16:44,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2024-10-31 22:16:44,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:44,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:44,813 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] [2024-10-31 22:16:44,813 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:44,814 INFO L745 eck$LassoCheckResult]: Stem: 166#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(34, 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;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0; 167#L-1 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~ret17#1, main_#t~ret18#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;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;assume 0 == main_#t~nondet12#1 || 1 == main_#t~nondet12#1;~mode2~0 := (if 0 == main_#t~nondet12#1 % 256 then 0 else 1);havoc main_#t~nondet12#1;havoc main_#t~nondet13#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_#t~nondet14#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_#t~nondet15#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;assume 0 == main_#t~nondet16#1 || 1 == main_#t~nondet16#1;~mode3~0 := (if 0 == main_#t~nondet16#1 % 256 then 0 else 1);havoc main_#t~nondet16#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 175#L137 assume 0 == (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296); 179#L138 assume ~id1~0 >= 0; 163#L139 assume 0 == ~st1~0; 164#L140 assume ~send1~0 == ~id1~0; 176#L141 assume 0 == (if ~mode1~0 % 256 % 4294967296 <= 2147483647 then ~mode1~0 % 256 % 4294967296 else ~mode1~0 % 256 % 4294967296 - 4294967296); 170#L142 assume ~id2~0 >= 0; 169#L143 assume 0 == ~st2~0; 133#L144 assume ~send2~0 == ~id2~0; 134#L145 assume 0 == (if ~mode2~0 % 256 % 4294967296 <= 2147483647 then ~mode2~0 % 256 % 4294967296 else ~mode2~0 % 256 % 4294967296 - 4294967296); 148#L146 assume ~id3~0 >= 0; 149#L147 assume 0 == ~st3~0; 165#L148 assume ~send3~0 == ~id3~0; 157#L149 assume 0 == (if ~mode3~0 % 256 % 4294967296 <= 2147483647 then ~mode3~0 % 256 % 4294967296 else ~mode3~0 % 256 % 4294967296 - 4294967296); 158#L150 assume ~id1~0 != ~id2~0; 144#L151 assume ~id1~0 != ~id3~0; 145#L152 assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; 138#L137-1 init_#res#1 := init_~tmp~0#1; 139#init_returnLabel#1 main_#t~ret17#1 := init_#res#1;havoc init_~tmp~0#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret17#1;havoc main_#t~ret17#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; 154#L22 assume !(0 == assume_abort_if_not_~cond#1); 162#L21 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;main_~i2~0#1 := 0; 128#L262-2 [2024-10-31 22:16:44,814 INFO L747 eck$LassoCheckResult]: Loop: 128#L262-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 129#L57 assume !(0 != ~mode1~0 % 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; 177#L57-2 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; 159#L88 assume !(0 != ~mode2~0 % 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; 142#L88-2 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; 143#L113 assume !(0 != ~mode3~0 % 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; 168#L113-2 havoc node3_~m3~0#1;assume { :end_inline_node3 } 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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 135#L210 assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; 136#L210-1 check_#res#1 := check_~tmp~1#1; 146#check_returnLabel#1 main_#t~ret18#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret18#1;havoc main_#t~ret18#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; 147#L285 assume !(0 == assert_~arg#1 % 256); 160#L280 havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true; 128#L262-2 [2024-10-31 22:16:44,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:44,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1473464705, now seen corresponding path program 1 times [2024-10-31 22:16:44,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:44,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285907558] [2024-10-31 22:16:44,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:44,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:44,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:44,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:44,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:44,905 INFO L85 PathProgramCache]: Analyzing trace with hash 920486573, now seen corresponding path program 2 times [2024-10-31 22:16:44,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:44,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809251366] [2024-10-31 22:16:44,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:44,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:45,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:45,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809251366] [2024-10-31 22:16:45,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809251366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:45,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:45,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:45,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454260384] [2024-10-31 22:16:45,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:45,113 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:16:45,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:45,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:16:45,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:16:45,114 INFO L87 Difference]: Start difference. First operand 52 states and 70 transitions. cyclomatic complexity: 19 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2024-10-31 22:16:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:45,158 INFO L93 Difference]: Finished difference Result 55 states and 72 transitions. [2024-10-31 22:16:45,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 72 transitions. [2024-10-31 22:16:45,159 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2024-10-31 22:16:45,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 52 states and 67 transitions. [2024-10-31 22:16:45,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2024-10-31 22:16:45,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2024-10-31 22:16:45,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 67 transitions. [2024-10-31 22:16:45,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:16:45,162 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-10-31 22:16:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 67 transitions. [2024-10-31 22:16:45,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-10-31 22:16:45,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 51 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) [2024-10-31 22:16:45,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2024-10-31 22:16:45,166 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-10-31 22:16:45,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:16:45,167 INFO L425 stractBuchiCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-10-31 22:16:45,167 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:16:45,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 67 transitions. [2024-10-31 22:16:45,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2024-10-31 22:16:45,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:45,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:45,169 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] [2024-10-31 22:16:45,170 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:45,170 INFO L745 eck$LassoCheckResult]: Stem: 281#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(34, 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;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0; 282#L-1 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~ret17#1, main_#t~ret18#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;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;assume 0 == main_#t~nondet12#1 || 1 == main_#t~nondet12#1;~mode2~0 := (if 0 == main_#t~nondet12#1 % 256 then 0 else 1);havoc main_#t~nondet12#1;havoc main_#t~nondet13#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_#t~nondet14#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_#t~nondet15#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;assume 0 == main_#t~nondet16#1 || 1 == main_#t~nondet16#1;~mode3~0 := (if 0 == main_#t~nondet16#1 % 256 then 0 else 1);havoc main_#t~nondet16#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 290#L137 assume 0 == (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296); 294#L138 assume ~id1~0 >= 0; 278#L139 assume 0 == ~st1~0; 279#L140 assume ~send1~0 == ~id1~0; 291#L141 assume 0 == (if ~mode1~0 % 256 % 4294967296 <= 2147483647 then ~mode1~0 % 256 % 4294967296 else ~mode1~0 % 256 % 4294967296 - 4294967296); 285#L142 assume ~id2~0 >= 0; 284#L143 assume 0 == ~st2~0; 248#L144 assume ~send2~0 == ~id2~0; 249#L145 assume 0 == (if ~mode2~0 % 256 % 4294967296 <= 2147483647 then ~mode2~0 % 256 % 4294967296 else ~mode2~0 % 256 % 4294967296 - 4294967296); 262#L146 assume ~id3~0 >= 0; 263#L147 assume 0 == ~st3~0; 280#L148 assume ~send3~0 == ~id3~0; 271#L149 assume 0 == (if ~mode3~0 % 256 % 4294967296 <= 2147483647 then ~mode3~0 % 256 % 4294967296 else ~mode3~0 % 256 % 4294967296 - 4294967296); 272#L150 assume ~id1~0 != ~id2~0; 258#L151 assume ~id1~0 != ~id3~0; 259#L152 assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; 252#L137-1 init_#res#1 := init_~tmp~0#1; 253#init_returnLabel#1 main_#t~ret17#1 := init_#res#1;havoc init_~tmp~0#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret17#1;havoc main_#t~ret17#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; 268#L22 assume !(0 == assume_abort_if_not_~cond#1); 276#L21 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;main_~i2~0#1 := 0; 243#L262-2 [2024-10-31 22:16:45,170 INFO L747 eck$LassoCheckResult]: Loop: 243#L262-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 244#L57 assume !(0 != ~mode1~0 % 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; 292#L57-2 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; 273#L88 assume !(0 != ~mode2~0 % 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; 256#L88-2 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; 257#L113 assume !(0 != ~mode3~0 % 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; 283#L113-2 havoc node3_~m3~0#1;assume { :end_inline_node3 } 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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 250#L210 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 251#L211 assume (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296) >= 3; 286#$Ultimate##103 assume (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296) < 3;check_~tmp~1#1 := 1; 277#L210-1 check_#res#1 := check_~tmp~1#1; 260#check_returnLabel#1 main_#t~ret18#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret18#1;havoc main_#t~ret18#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; 261#L285 assume !(0 == assert_~arg#1 % 256); 274#L280 havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true; 243#L262-2 [2024-10-31 22:16:45,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:45,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1473464705, now seen corresponding path program 2 times [2024-10-31 22:16:45,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:45,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676514145] [2024-10-31 22:16:45,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:45,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:45,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:45,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:45,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:45,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1591551843, now seen corresponding path program 1 times [2024-10-31 22:16:45,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:45,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606469685] [2024-10-31 22:16:45,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:45,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:45,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:45,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:45,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606469685] [2024-10-31 22:16:45,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606469685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:45,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:45,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:16:45,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086877247] [2024-10-31 22:16:45,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:45,283 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:16:45,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:45,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:45,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:45,284 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:45,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:45,323 INFO L93 Difference]: Finished difference Result 76 states and 101 transitions. [2024-10-31 22:16:45,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 101 transitions. [2024-10-31 22:16:45,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 54 [2024-10-31 22:16:45,325 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 76 states and 101 transitions. [2024-10-31 22:16:45,326 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2024-10-31 22:16:45,326 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2024-10-31 22:16:45,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 101 transitions. [2024-10-31 22:16:45,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:16:45,327 INFO L218 hiAutomatonCegarLoop]: Abstraction has 76 states and 101 transitions. [2024-10-31 22:16:45,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 101 transitions. [2024-10-31 22:16:45,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2024-10-31 22:16:45,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 73 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 98 transitions. [2024-10-31 22:16:45,332 INFO L240 hiAutomatonCegarLoop]: Abstraction has 74 states and 98 transitions. [2024-10-31 22:16:45,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:45,333 INFO L425 stractBuchiCegarLoop]: Abstraction has 74 states and 98 transitions. [2024-10-31 22:16:45,334 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:16:45,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 98 transitions. [2024-10-31 22:16:45,335 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2024-10-31 22:16:45,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:45,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:45,336 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] [2024-10-31 22:16:45,336 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:45,336 INFO L745 eck$LassoCheckResult]: Stem: 415#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(34, 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;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0; 416#L-1 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~ret17#1, main_#t~ret18#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;~id2~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;~st2~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;~send2~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;assume 0 == main_#t~nondet12#1 || 1 == main_#t~nondet12#1;~mode2~0 := (if 0 == main_#t~nondet12#1 % 256 then 0 else 1);havoc main_#t~nondet12#1;havoc main_#t~nondet13#1;~id3~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_#t~nondet14#1;~st3~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_#t~nondet15#1;~send3~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;assume 0 == main_#t~nondet16#1 || 1 == main_#t~nondet16#1;~mode3~0 := (if 0 == main_#t~nondet16#1 % 256 then 0 else 1);havoc main_#t~nondet16#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~tmp~0#1;havoc init_~tmp~0#1; 423#L137 assume 0 == (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296); 430#L138 assume ~id1~0 >= 0; 412#L139 assume 0 == ~st1~0; 413#L140 assume ~send1~0 == ~id1~0; 424#L141 assume 0 == (if ~mode1~0 % 256 % 4294967296 <= 2147483647 then ~mode1~0 % 256 % 4294967296 else ~mode1~0 % 256 % 4294967296 - 4294967296); 419#L142 assume ~id2~0 >= 0; 418#L143 assume 0 == ~st2~0; 382#L144 assume ~send2~0 == ~id2~0; 383#L145 assume 0 == (if ~mode2~0 % 256 % 4294967296 <= 2147483647 then ~mode2~0 % 256 % 4294967296 else ~mode2~0 % 256 % 4294967296 - 4294967296); 396#L146 assume ~id3~0 >= 0; 397#L147 assume 0 == ~st3~0; 414#L148 assume ~send3~0 == ~id3~0; 405#L149 assume 0 == (if ~mode3~0 % 256 % 4294967296 <= 2147483647 then ~mode3~0 % 256 % 4294967296 else ~mode3~0 % 256 % 4294967296 - 4294967296); 406#L150 assume ~id1~0 != ~id2~0; 392#L151 assume ~id1~0 != ~id3~0; 393#L152 assume ~id2~0 != ~id3~0;init_~tmp~0#1 := 1; 386#L137-1 init_#res#1 := init_~tmp~0#1; 387#init_returnLabel#1 main_#t~ret17#1 := init_#res#1;havoc init_~tmp~0#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret17#1;havoc main_#t~ret17#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; 402#L22 assume !(0 == assume_abort_if_not_~cond#1); 410#L21 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;main_~i2~0#1 := 0; 377#L262-2 [2024-10-31 22:16:45,337 INFO L747 eck$LassoCheckResult]: Loop: 377#L262-2 assume !false;assume { :begin_inline_node1 } true;havoc node1_~m1~0#1;havoc node1_~m1~0#1;node1_~m1~0#1 := ~nomsg~0; 378#L57 assume !(0 != ~mode1~0 % 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; 426#L57-2 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; 407#L88 assume !(0 != ~mode2~0 % 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; 390#L88-2 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; 391#L113 assume !(0 != ~mode3~0 % 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; 417#L113-2 havoc node3_~m3~0#1;assume { :end_inline_node3 } 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;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 433#L210 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 432#L211 assume !((if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296) >= 3); 428#L214 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 429#$Ultimate##103 assume (if ~r1~0 % 256 % 4294967296 <= 2147483647 then ~r1~0 % 256 % 4294967296 else ~r1~0 % 256 % 4294967296 - 4294967296) < 3;check_~tmp~1#1 := 1; 411#L210-1 check_#res#1 := check_~tmp~1#1; 394#check_returnLabel#1 main_#t~ret18#1 := check_#res#1;havoc check_~tmp~1#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret18#1;havoc main_#t~ret18#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; 395#L285 assume !(0 == assert_~arg#1 % 256); 408#L280 havoc assert_~arg#1;havoc assert_#in~arg#1;assume { :end_inline_assert } true; 377#L262-2 [2024-10-31 22:16:45,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:45,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1473464705, now seen corresponding path program 3 times [2024-10-31 22:16:45,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:45,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360124201] [2024-10-31 22:16:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:45,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:45,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:45,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:45,371 INFO L85 PathProgramCache]: Analyzing trace with hash -446896982, now seen corresponding path program 1 times [2024-10-31 22:16:45,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:45,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011748616] [2024-10-31 22:16:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:45,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:45,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:45,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:45,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:45,408 INFO L85 PathProgramCache]: Analyzing trace with hash 423141996, now seen corresponding path program 1 times [2024-10-31 22:16:45,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:45,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340965451] [2024-10-31 22:16:45,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:45,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:45,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:45,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:47,267 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:16:47,268 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:16:47,268 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:16:47,268 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:16:47,268 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:16:47,269 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:47,269 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:16:47,269 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:16:47,269 INFO L132 ssoRankerPreferences]: Filename of dumped script: pals_lcr.3.1.ufo.UNBOUNDED.pals.c_Iteration4_Loop [2024-10-31 22:16:47,269 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:16:47,270 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:16:47,302 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,317 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,341 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:47,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:48,558 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:16:49,571 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 17