./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 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_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --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 7669776db00f6295c4028d825bdd51b22a88fb95e78feea7b33da1a0ac83f7c3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:56:14,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:56:14,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:56:14,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:56:14,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:56:14,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:56:14,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:56:14,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:56:14,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:56:14,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:56:14,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:56:14,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:56:14,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:56:14,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:56:14,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:56:14,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:56:14,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:56:14,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:56:14,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:56:14,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:56:14,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:56:14,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:56:14,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:56:14,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:56:14,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:56:14,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:56:14,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:56:14,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:56:14,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:56:14,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:56:14,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:56:14,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:56:14,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:56:14,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:56:14,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:56:14,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:56:14,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:56:14,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:56:14,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:56:14,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:56:14,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:56:14,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-21 16:56:14,581 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:56:14,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:56:14,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:56:14,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:56:14,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:56:14,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:56:14,583 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:56:14,584 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 16:56:14,584 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 16:56:14,584 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 16:56:14,584 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 16:56:14,584 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 16:56:14,585 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 16:56:14,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:56:14,585 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:56:14,585 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:56:14,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:56:14,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:56:14,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:56:14,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 16:56:14,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 16:56:14,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 16:56:14,587 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:56:14,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:56:14,587 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 16:56:14,587 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:56:14,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 16:56:14,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:56:14,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:56:14,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:56:14,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:56:14,590 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 16:56:14,591 INFO L138 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_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7669776db00f6295c4028d825bdd51b22a88fb95e78feea7b33da1a0ac83f7c3 [2022-11-21 16:56:14,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:56:14,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:56:14,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:56:14,896 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:56:14,897 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:56:14,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c [2022-11-21 16:56:18,087 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:56:18,417 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:56:18,418 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c [2022-11-21 16:56:18,436 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/data/7656bc4c9/84f40047d58d440f997690c7f75f7c3c/FLAG8c583514e [2022-11-21 16:56:18,451 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/data/7656bc4c9/84f40047d58d440f997690c7f75f7c3c [2022-11-21 16:56:18,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:56:18,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:56:18,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:56:18,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:56:18,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:56:18,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:18,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37130ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18, skipping insertion in model container [2022-11-21 16:56:18,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:18,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:56:18,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:56:18,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c[28368,28381] [2022-11-21 16:56:18,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:56:18,824 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:56:18,951 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c[28368,28381] [2022-11-21 16:56:18,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:56:18,970 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:56:18,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18 WrapperNode [2022-11-21 16:56:18,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:56:18,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:56:18,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:56:18,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:56:18,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:18,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:19,042 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 882 [2022-11-21 16:56:19,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:56:19,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:56:19,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:56:19,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:56:19,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:19,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:19,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:19,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:19,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:19,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:19,128 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:19,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:19,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:56:19,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:56:19,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:56:19,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:56:19,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (1/1) ... [2022-11-21 16:56:19,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:56:19,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:56:19,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:56:19,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 16:56:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:56:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:56:19,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:56:19,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:56:19,453 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:56:19,455 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:56:20,419 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:56:20,437 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:56:20,437 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:56:20,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:56:20 BoogieIcfgContainer [2022-11-21 16:56:20,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:56:20,453 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 16:56:20,453 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 16:56:20,456 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 16:56:20,457 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:56:20,457 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 04:56:18" (1/3) ... [2022-11-21 16:56:20,458 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67c81b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:56:20, skipping insertion in model container [2022-11-21 16:56:20,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:56:20,459 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:18" (2/3) ... [2022-11-21 16:56:20,459 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67c81b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:56:20, skipping insertion in model container [2022-11-21 16:56:20,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:56:20,459 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:56:20" (3/3) ... [2022-11-21 16:56:20,461 INFO L332 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.UNBOUNDED.pals.c [2022-11-21 16:56:20,571 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 16:56:20,571 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 16:56:20,571 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 16:56:20,572 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 16:56:20,572 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 16:56:20,572 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 16:56:20,572 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 16:56:20,572 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 16:56:20,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 287 states, 286 states have (on average 1.8216783216783217) internal successors, (521), 286 states have internal predecessors, (521), 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) [2022-11-21 16:56:20,627 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 91 [2022-11-21 16:56:20,628 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:56:20,628 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:56:20,641 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:20,641 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] [2022-11-21 16:56:20,642 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 16:56:20,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 287 states, 286 states have (on average 1.8216783216783217) internal successors, (521), 286 states have internal predecessors, (521), 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) [2022-11-21 16:56:20,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 91 [2022-11-21 16:56:20,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:56:20,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:56:20,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:20,660 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] [2022-11-21 16:56:20,682 INFO L748 eck$LassoCheckResult]: Stem: 275#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 167#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~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~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~ret44#1, main_#t~ret45#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~ep12~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~ep13~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~ep14~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep21~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep23~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep24~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~ep31~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~ep32~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~ep34~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~ep41~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~ep42~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~ep43~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~r1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st1~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~nl1~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~m1~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~max1~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~mode1~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~id2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~r2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~nl2~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~m2~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~max2~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~mode2~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~id3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~r3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~st3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~nl3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~m3~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~max3~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~mode3~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id4~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~r4~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~st4~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~nl4~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~m4~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~max4~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~mode4~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r141~0#1, init_~r211~0#1, init_~r231~0#1, init_~r241~0#1, init_~r311~0#1, init_~r321~0#1, init_~r341~0#1, init_~r411~0#1, init_~r421~0#1, init_~r431~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r142~0#1, init_~tmp___1~0#1, init_~r212~0#1, init_~tmp___2~0#1, init_~r232~0#1, init_~tmp___3~0#1, init_~r242~0#1, init_~tmp___4~0#1, init_~r312~0#1, init_~tmp___5~0#1, init_~r322~0#1, init_~tmp___6~0#1, init_~r342~0#1, init_~tmp___7~0#1, init_~r412~0#1, init_~tmp___8~0#1, init_~r422~0#1, init_~tmp___9~0#1, init_~r432~0#1, init_~tmp___10~0#1, init_~r123~0#1, init_~tmp___11~0#1, init_~r133~0#1, init_~tmp___12~0#1, init_~r143~0#1, init_~tmp___13~0#1, init_~r213~0#1, init_~tmp___14~0#1, init_~r233~0#1, init_~tmp___15~0#1, init_~r243~0#1, init_~tmp___16~0#1, init_~r313~0#1, init_~tmp___17~0#1, init_~r323~0#1, init_~tmp___18~0#1, init_~r343~0#1, init_~tmp___19~0#1, init_~r413~0#1, init_~tmp___20~0#1, init_~r423~0#1, init_~tmp___21~0#1, init_~r433~0#1, init_~tmp___22~0#1, init_~tmp___23~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r141~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r241~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r341~0#1;havoc init_~r411~0#1;havoc init_~r421~0#1;havoc init_~r431~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r142~0#1;havoc init_~tmp___1~0#1;havoc init_~r212~0#1;havoc init_~tmp___2~0#1;havoc init_~r232~0#1;havoc init_~tmp___3~0#1;havoc init_~r242~0#1;havoc init_~tmp___4~0#1;havoc init_~r312~0#1;havoc init_~tmp___5~0#1;havoc init_~r322~0#1;havoc init_~tmp___6~0#1;havoc init_~r342~0#1;havoc init_~tmp___7~0#1;havoc init_~r412~0#1;havoc init_~tmp___8~0#1;havoc init_~r422~0#1;havoc init_~tmp___9~0#1;havoc init_~r432~0#1;havoc init_~tmp___10~0#1;havoc init_~r123~0#1;havoc init_~tmp___11~0#1;havoc init_~r133~0#1;havoc init_~tmp___12~0#1;havoc init_~r143~0#1;havoc init_~tmp___13~0#1;havoc init_~r213~0#1;havoc init_~tmp___14~0#1;havoc init_~r233~0#1;havoc init_~tmp___15~0#1;havoc init_~r243~0#1;havoc init_~tmp___16~0#1;havoc init_~r313~0#1;havoc init_~tmp___17~0#1;havoc init_~r323~0#1;havoc init_~tmp___18~0#1;havoc init_~r343~0#1;havoc init_~tmp___19~0#1;havoc init_~r413~0#1;havoc init_~tmp___20~0#1;havoc init_~r423~0#1;havoc init_~tmp___21~0#1;havoc init_~r433~0#1;havoc init_~tmp___22~0#1;havoc init_~tmp___23~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r141~0#1 := ~ep14~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r241~0#1 := ~ep24~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0;init_~r341~0#1 := ~ep34~0;init_~r411~0#1 := ~ep41~0;init_~r421~0#1 := ~ep42~0;init_~r431~0#1 := ~ep43~0; 166#L406true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 39#L417true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 240#L427true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 242#L438true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 123#L448true assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 7#L459true init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 14#L469true assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 46#L480true init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 149#L490true assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 177#L501true init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 208#L511true assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 252#L522true init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 54#L532true assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 45#L543true init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 221#L553true assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 16#L564true init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 47#L574true assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 219#L585true init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 288#L595true assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 148#L606true init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 257#L616true assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 49#L627true init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 104#L637true assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 287#L648true init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 157#L658true assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 110#L669true init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 253#L679true assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 186#L690true init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 60#L700true assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 170#L711true init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 82#L721true assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 159#L732true init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 38#L742true assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 128#L753true init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 209#L763true assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 235#L774true init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 272#L784true assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 139#L795true init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 81#L805true assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 210#L816true init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 48#L826true assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 113#L837true init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 261#L847true assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 218#L858true init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 27#L868true assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 88#L879true init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 10#L889true assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 236#L900true init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 19#L910true assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 17#L910-1true init_#res#1 := init_~tmp___23~0#1; 11#L1079true main_#t~ret44#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret44#1;havoc main_#t~ret44#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; 44#L22true assume !(0 == assume_abort_if_not_~cond#1); 97#L21true assume { :end_inline_assume_abort_if_not } true;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 2#L1216-2true [2022-11-21 16:56:20,686 INFO L750 eck$LassoCheckResult]: Loop: 2#L1216-2true assume !false;assume { :begin_inline_node1 } true; 68#L110true assume !(0 != ~mode1~0 % 256); 58#L145true assume !(~r1~0 % 256 < 3); 66#L145-1true ~mode1~0 := 1; 42#L110-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true; 90#L166true assume !(0 != ~mode2~0 % 256); 198#L201true assume !(~r2~0 % 256 < 3); 244#L201-1true ~mode2~0 := 1; 238#L166-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true; 83#L222true assume !(0 != ~mode3~0 % 256); 122#L257true assume !(~r3~0 % 256 < 3); 53#L257-1true ~mode3~0 := 1; 13#L222-2true assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true; 133#L278true assume !(0 != ~mode4~0 % 256); 25#L313true assume !(~r4~0 % 256 < 3); 117#L313-1true ~mode4~0 := 1; 136#L278-2true assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 131#L1087true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1#1 := 0; 126#L1087-1true check_#res#1 := check_~tmp~1#1; 171#L1139true main_#t~ret45#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret45#1;havoc main_#t~ret45#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; 154#L1258true assume !(0 == assert_~arg#1 % 256); 59#L1253true assume { :end_inline_assert } true; 2#L1216-2true [2022-11-21 16:56:20,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:20,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 1 times [2022-11-21 16:56:20,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:20,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622626800] [2022-11-21 16:56:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:20,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:56:21,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:56:21,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622626800] [2022-11-21 16:56:21,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622626800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:56:21,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:56:21,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:56:21,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110977784] [2022-11-21 16:56:21,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:56:21,325 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 16:56:21,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:21,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1386693619, now seen corresponding path program 1 times [2022-11-21 16:56:21,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:21,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45036400] [2022-11-21 16:56:21,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:21,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:56:21,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:56:21,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45036400] [2022-11-21 16:56:21,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45036400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:56:21,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:56:21,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:56:21,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187987586] [2022-11-21 16:56:21,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:56:21,551 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-21 16:56:21,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:56:21,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:56:21,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:56:21,588 INFO L87 Difference]: Start difference. First operand has 287 states, 286 states have (on average 1.8216783216783217) internal successors, (521), 286 states have internal predecessors, (521), 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 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-11-21 16:56:21,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:56:21,700 INFO L93 Difference]: Finished difference Result 287 states and 517 transitions. [2022-11-21 16:56:21,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 287 states and 517 transitions. [2022-11-21 16:56:21,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 90 [2022-11-21 16:56:21,711 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 287 states to 282 states and 504 transitions. [2022-11-21 16:56:21,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 282 [2022-11-21 16:56:21,714 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 282 [2022-11-21 16:56:21,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 282 states and 504 transitions. [2022-11-21 16:56:21,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:56:21,716 INFO L218 hiAutomatonCegarLoop]: Abstraction has 282 states and 504 transitions. [2022-11-21 16:56:21,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states and 504 transitions. [2022-11-21 16:56:21,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-11-21 16:56:21,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 282 states have (on average 1.7872340425531914) internal successors, (504), 281 states have internal predecessors, (504), 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) [2022-11-21 16:56:21,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 504 transitions. [2022-11-21 16:56:21,757 INFO L240 hiAutomatonCegarLoop]: Abstraction has 282 states and 504 transitions. [2022-11-21 16:56:21,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:56:21,762 INFO L428 stractBuchiCegarLoop]: Abstraction has 282 states and 504 transitions. [2022-11-21 16:56:21,762 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 16:56:21,763 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 282 states and 504 transitions. [2022-11-21 16:56:21,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 90 [2022-11-21 16:56:21,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:56:21,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:56:21,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:21,767 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:21,768 INFO L748 eck$LassoCheckResult]: Stem: 872#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 834#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~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~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~ret44#1, main_#t~ret45#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~ep12~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~ep13~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~ep14~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep21~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep23~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep24~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~ep31~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~ep32~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~ep34~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~ep41~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~ep42~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~ep43~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~r1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st1~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~nl1~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~m1~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~max1~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~mode1~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~id2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~r2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~nl2~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~m2~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~max2~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~mode2~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~id3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~r3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~st3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~nl3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~m3~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~max3~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~mode3~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id4~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~r4~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~st4~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~nl4~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~m4~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~max4~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~mode4~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r141~0#1, init_~r211~0#1, init_~r231~0#1, init_~r241~0#1, init_~r311~0#1, init_~r321~0#1, init_~r341~0#1, init_~r411~0#1, init_~r421~0#1, init_~r431~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r142~0#1, init_~tmp___1~0#1, init_~r212~0#1, init_~tmp___2~0#1, init_~r232~0#1, init_~tmp___3~0#1, init_~r242~0#1, init_~tmp___4~0#1, init_~r312~0#1, init_~tmp___5~0#1, init_~r322~0#1, init_~tmp___6~0#1, init_~r342~0#1, init_~tmp___7~0#1, init_~r412~0#1, init_~tmp___8~0#1, init_~r422~0#1, init_~tmp___9~0#1, init_~r432~0#1, init_~tmp___10~0#1, init_~r123~0#1, init_~tmp___11~0#1, init_~r133~0#1, init_~tmp___12~0#1, init_~r143~0#1, init_~tmp___13~0#1, init_~r213~0#1, init_~tmp___14~0#1, init_~r233~0#1, init_~tmp___15~0#1, init_~r243~0#1, init_~tmp___16~0#1, init_~r313~0#1, init_~tmp___17~0#1, init_~r323~0#1, init_~tmp___18~0#1, init_~r343~0#1, init_~tmp___19~0#1, init_~r413~0#1, init_~tmp___20~0#1, init_~r423~0#1, init_~tmp___21~0#1, init_~r433~0#1, init_~tmp___22~0#1, init_~tmp___23~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r141~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r241~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r341~0#1;havoc init_~r411~0#1;havoc init_~r421~0#1;havoc init_~r431~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r142~0#1;havoc init_~tmp___1~0#1;havoc init_~r212~0#1;havoc init_~tmp___2~0#1;havoc init_~r232~0#1;havoc init_~tmp___3~0#1;havoc init_~r242~0#1;havoc init_~tmp___4~0#1;havoc init_~r312~0#1;havoc init_~tmp___5~0#1;havoc init_~r322~0#1;havoc init_~tmp___6~0#1;havoc init_~r342~0#1;havoc init_~tmp___7~0#1;havoc init_~r412~0#1;havoc init_~tmp___8~0#1;havoc init_~r422~0#1;havoc init_~tmp___9~0#1;havoc init_~r432~0#1;havoc init_~tmp___10~0#1;havoc init_~r123~0#1;havoc init_~tmp___11~0#1;havoc init_~r133~0#1;havoc init_~tmp___12~0#1;havoc init_~r143~0#1;havoc init_~tmp___13~0#1;havoc init_~r213~0#1;havoc init_~tmp___14~0#1;havoc init_~r233~0#1;havoc init_~tmp___15~0#1;havoc init_~r243~0#1;havoc init_~tmp___16~0#1;havoc init_~r313~0#1;havoc init_~tmp___17~0#1;havoc init_~r323~0#1;havoc init_~tmp___18~0#1;havoc init_~r343~0#1;havoc init_~tmp___19~0#1;havoc init_~r413~0#1;havoc init_~tmp___20~0#1;havoc init_~r423~0#1;havoc init_~tmp___21~0#1;havoc init_~r433~0#1;havoc init_~tmp___22~0#1;havoc init_~tmp___23~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r141~0#1 := ~ep14~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r241~0#1 := ~ep24~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0;init_~r341~0#1 := ~ep34~0;init_~r411~0#1 := ~ep41~0;init_~r421~0#1 := ~ep42~0;init_~r431~0#1 := ~ep43~0; 833#L406 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 629#L417 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 670#L427 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 808#L438 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 790#L448 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 604#L459 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 605#L469 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 622#L480 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 682#L490 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 672#L501 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 839#L511 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 674#L522 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 693#L532 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 680#L543 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 681#L553 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 626#L564 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 627#L574 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 683#L585 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 858#L595 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 664#L606 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 821#L616 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 687#L627 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 688#L637 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 762#L648 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 828#L658 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 658#L669 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 771#L679 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 666#L690 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 705#L700 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 706#L711 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 737#L721 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 610#L732 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 667#L742 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 668#L753 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 798#L763 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 824#L774 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 864#L784 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 742#L795 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 735#L805 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 701#L816 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 685#L826 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 624#L837 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 776#L847 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 778#L858 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 648#L868 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 649#L879 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 611#L889 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 612#L900 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 630#L910 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 596#L910-1 init_#res#1 := init_~tmp___23~0#1; 614#L1079 main_#t~ret44#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret44#1;havoc main_#t~ret44#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; 615#L22 assume !(0 == assume_abort_if_not_~cond#1); 679#L21 assume { :end_inline_assume_abort_if_not } true;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 592#L1216-2 [2022-11-21 16:56:21,769 INFO L750 eck$LassoCheckResult]: Loop: 592#L1216-2 assume !false;assume { :begin_inline_node1 } true; 593#L110 assume !(0 != ~mode1~0 % 256); 702#L145 assume !(~r1~0 % 256 < 3); 704#L145-1 ~mode1~0 := 1; 633#L110-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true; 676#L166 assume !(0 != ~mode2~0 % 256); 745#L201 assume !(~r2~0 % 256 < 3); 844#L201-1 ~mode2~0 := 1; 865#L166-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true; 739#L222 assume !(0 != ~mode3~0 % 256); 740#L257 assume !(~r3~0 % 256 < 3); 692#L257-1 ~mode3~0 := 1; 619#L222-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true; 620#L278 assume !(0 != ~mode4~0 % 256); 641#L313 assume !(~r4~0 % 256 < 3); 642#L313-1 ~mode4~0 := 1; 780#L278-2 assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 801#L1087 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 802#L1088 assume ~st1~0 + ~nl1~0 <= 1; 868#L1089 assume ~st2~0 + ~nl2~0 <= 1; 646#L1090 assume ~st3~0 + ~nl3~0 <= 1; 647#L1091 assume ~st4~0 + ~nl4~0 <= 1; 711#L1092 assume ~r1~0 % 256 >= 3; 796#L1096 assume ~r1~0 % 256 < 3; 726#L1101 assume ~r1~0 % 256 >= 3; 721#L1106 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 794#L1087-1 check_#res#1 := check_~tmp~1#1; 795#L1139 main_#t~ret45#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret45#1;havoc main_#t~ret45#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; 825#L1258 assume !(0 == assert_~arg#1 % 256); 698#L1253 assume { :end_inline_assert } true; 592#L1216-2 [2022-11-21 16:56:21,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:21,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 2 times [2022-11-21 16:56:21,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:21,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604334344] [2022-11-21 16:56:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:21,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:56:21,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:56:21,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604334344] [2022-11-21 16:56:21,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604334344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:56:21,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:56:21,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:56:21,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929307162] [2022-11-21 16:56:21,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:56:21,988 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 16:56:21,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:21,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1274057180, now seen corresponding path program 1 times [2022-11-21 16:56:21,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:21,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031962307] [2022-11-21 16:56:21,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:21,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:22,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:56:22,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:56:22,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031962307] [2022-11-21 16:56:22,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031962307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:56:22,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:56:22,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:56:22,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673848426] [2022-11-21 16:56:22,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:56:22,047 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-21 16:56:22,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:56:22,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:56:22,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:56:22,049 INFO L87 Difference]: Start difference. First operand 282 states and 504 transitions. cyclomatic complexity: 223 Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:56:22,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:56:22,117 INFO L93 Difference]: Finished difference Result 357 states and 623 transitions. [2022-11-21 16:56:22,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 357 states and 623 transitions. [2022-11-21 16:56:22,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 165 [2022-11-21 16:56:22,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 357 states to 357 states and 623 transitions. [2022-11-21 16:56:22,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2022-11-21 16:56:22,131 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2022-11-21 16:56:22,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 623 transitions. [2022-11-21 16:56:22,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:56:22,139 INFO L218 hiAutomatonCegarLoop]: Abstraction has 357 states and 623 transitions. [2022-11-21 16:56:22,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 623 transitions. [2022-11-21 16:56:22,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 355. [2022-11-21 16:56:22,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 355 states have (on average 1.7464788732394365) internal successors, (620), 354 states have internal predecessors, (620), 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) [2022-11-21 16:56:22,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 620 transitions. [2022-11-21 16:56:22,162 INFO L240 hiAutomatonCegarLoop]: Abstraction has 355 states and 620 transitions. [2022-11-21 16:56:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:56:22,164 INFO L428 stractBuchiCegarLoop]: Abstraction has 355 states and 620 transitions. [2022-11-21 16:56:22,164 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 16:56:22,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 355 states and 620 transitions. [2022-11-21 16:56:22,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 163 [2022-11-21 16:56:22,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:56:22,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:56:22,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:22,175 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:22,175 INFO L748 eck$LassoCheckResult]: Stem: 1527#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~nomsg~0 := -1;~p12~0 := 0;~p12_old~0 := 0;~p12_new~0 := 0;~ep12~0 := 0;~p13~0 := 0;~p13_old~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~p14~0 := 0;~p14_old~0 := 0;~p14_new~0 := 0;~ep14~0 := 0;~p21~0 := 0;~p21_old~0 := 0;~p21_new~0 := 0;~ep21~0 := 0;~p23~0 := 0;~p23_old~0 := 0;~p23_new~0 := 0;~ep23~0 := 0;~p24~0 := 0;~p24_old~0 := 0;~p24_new~0 := 0;~ep24~0 := 0;~p31~0 := 0;~p31_old~0 := 0;~p31_new~0 := 0;~ep31~0 := 0;~p32~0 := 0;~p32_old~0 := 0;~p32_new~0 := 0;~ep32~0 := 0;~p34~0 := 0;~p34_old~0 := 0;~p34_new~0 := 0;~ep34~0 := 0;~p41~0 := 0;~p41_old~0 := 0;~p41_new~0 := 0;~ep41~0 := 0;~p42~0 := 0;~p42_old~0 := 0;~p42_new~0 := 0;~ep42~0 := 0;~p43~0 := 0;~p43_old~0 := 0;~p43_new~0 := 0;~ep43~0 := 0;~id1~0 := 0;~r1~0 := 0;~st1~0 := 0;~nl1~0 := 0;~m1~0 := 0;~max1~0 := 0;~mode1~0 := 0;~id2~0 := 0;~r2~0 := 0;~st2~0 := 0;~nl2~0 := 0;~m2~0 := 0;~max2~0 := 0;~mode2~0 := 0;~id3~0 := 0;~r3~0 := 0;~st3~0 := 0;~nl3~0 := 0;~m3~0 := 0;~max3~0 := 0;~mode3~0 := 0;~id4~0 := 0;~r4~0 := 0;~st4~0 := 0;~nl4~0 := 0;~m4~0 := 0;~max4~0 := 0;~mode4~0 := 0; 1485#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~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~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~ret44#1, main_#t~ret45#1, main_~c1~0#1, main_~i2~0#1;havoc main_~c1~0#1;havoc main_~i2~0#1;main_~c1~0#1 := 0;~ep12~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~ep13~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1;~ep14~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep21~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep23~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep24~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~ep31~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~ep32~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~ep34~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~ep41~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~ep42~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~ep43~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~id1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~r1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~st1~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~nl1~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~m1~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~max1~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~mode1~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~id2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~r2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~st2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~nl2~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~m2~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~max2~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~mode2~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~id3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~r3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~st3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~nl3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;~m3~0 := main_#t~nondet34#1;havoc main_#t~nondet34#1;~max3~0 := main_#t~nondet35#1;havoc main_#t~nondet35#1;~mode3~0 := main_#t~nondet36#1;havoc main_#t~nondet36#1;~id4~0 := main_#t~nondet37#1;havoc main_#t~nondet37#1;~r4~0 := main_#t~nondet38#1;havoc main_#t~nondet38#1;~st4~0 := main_#t~nondet39#1;havoc main_#t~nondet39#1;~nl4~0 := main_#t~nondet40#1;havoc main_#t~nondet40#1;~m4~0 := main_#t~nondet41#1;havoc main_#t~nondet41#1;~max4~0 := main_#t~nondet42#1;havoc main_#t~nondet42#1;~mode4~0 := main_#t~nondet43#1;havoc main_#t~nondet43#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r141~0#1, init_~r211~0#1, init_~r231~0#1, init_~r241~0#1, init_~r311~0#1, init_~r321~0#1, init_~r341~0#1, init_~r411~0#1, init_~r421~0#1, init_~r431~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r142~0#1, init_~tmp___1~0#1, init_~r212~0#1, init_~tmp___2~0#1, init_~r232~0#1, init_~tmp___3~0#1, init_~r242~0#1, init_~tmp___4~0#1, init_~r312~0#1, init_~tmp___5~0#1, init_~r322~0#1, init_~tmp___6~0#1, init_~r342~0#1, init_~tmp___7~0#1, init_~r412~0#1, init_~tmp___8~0#1, init_~r422~0#1, init_~tmp___9~0#1, init_~r432~0#1, init_~tmp___10~0#1, init_~r123~0#1, init_~tmp___11~0#1, init_~r133~0#1, init_~tmp___12~0#1, init_~r143~0#1, init_~tmp___13~0#1, init_~r213~0#1, init_~tmp___14~0#1, init_~r233~0#1, init_~tmp___15~0#1, init_~r243~0#1, init_~tmp___16~0#1, init_~r313~0#1, init_~tmp___17~0#1, init_~r323~0#1, init_~tmp___18~0#1, init_~r343~0#1, init_~tmp___19~0#1, init_~r413~0#1, init_~tmp___20~0#1, init_~r423~0#1, init_~tmp___21~0#1, init_~r433~0#1, init_~tmp___22~0#1, init_~tmp___23~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r141~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r241~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r341~0#1;havoc init_~r411~0#1;havoc init_~r421~0#1;havoc init_~r431~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r142~0#1;havoc init_~tmp___1~0#1;havoc init_~r212~0#1;havoc init_~tmp___2~0#1;havoc init_~r232~0#1;havoc init_~tmp___3~0#1;havoc init_~r242~0#1;havoc init_~tmp___4~0#1;havoc init_~r312~0#1;havoc init_~tmp___5~0#1;havoc init_~r322~0#1;havoc init_~tmp___6~0#1;havoc init_~r342~0#1;havoc init_~tmp___7~0#1;havoc init_~r412~0#1;havoc init_~tmp___8~0#1;havoc init_~r422~0#1;havoc init_~tmp___9~0#1;havoc init_~r432~0#1;havoc init_~tmp___10~0#1;havoc init_~r123~0#1;havoc init_~tmp___11~0#1;havoc init_~r133~0#1;havoc init_~tmp___12~0#1;havoc init_~r143~0#1;havoc init_~tmp___13~0#1;havoc init_~r213~0#1;havoc init_~tmp___14~0#1;havoc init_~r233~0#1;havoc init_~tmp___15~0#1;havoc init_~r243~0#1;havoc init_~tmp___16~0#1;havoc init_~r313~0#1;havoc init_~tmp___17~0#1;havoc init_~r323~0#1;havoc init_~tmp___18~0#1;havoc init_~r343~0#1;havoc init_~tmp___19~0#1;havoc init_~r413~0#1;havoc init_~tmp___20~0#1;havoc init_~r423~0#1;havoc init_~tmp___21~0#1;havoc init_~r433~0#1;havoc init_~tmp___22~0#1;havoc init_~tmp___23~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r141~0#1 := ~ep14~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r241~0#1 := ~ep24~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0;init_~r341~0#1 := ~ep34~0;init_~r411~0#1 := ~ep41~0;init_~r421~0#1 := ~ep42~0;init_~r431~0#1 := ~ep43~0; 1484#L406 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 1279#L417 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 1318#L427 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 1459#L438 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 1440#L448 assume 0 != init_~r141~0#1 % 256;init_~tmp___1~0#1 := 1; 1252#L459 init_~r142~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 1253#L469 assume 0 != init_~r211~0#1 % 256;init_~tmp___2~0#1 := 1; 1270#L480 init_~r212~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 1330#L490 assume 0 != init_~r231~0#1 % 256;init_~tmp___3~0#1 := 1; 1320#L501 init_~r232~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 1490#L511 assume 0 != init_~r241~0#1 % 256;init_~tmp___4~0#1 := 1; 1322#L522 init_~r242~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 1341#L532 assume 0 != init_~r311~0#1 % 256;init_~tmp___5~0#1 := 1; 1328#L543 init_~r312~0#1 := (if 0 == init_~tmp___5~0#1 then 0 else 1); 1329#L553 assume 0 != init_~r321~0#1 % 256;init_~tmp___6~0#1 := 1; 1274#L564 init_~r322~0#1 := (if 0 == init_~tmp___6~0#1 then 0 else 1); 1275#L574 assume 0 != init_~r341~0#1 % 256;init_~tmp___7~0#1 := 1; 1331#L585 init_~r342~0#1 := (if 0 == init_~tmp___7~0#1 then 0 else 1); 1512#L595 assume 0 != init_~r411~0#1 % 256;init_~tmp___8~0#1 := 1; 1312#L606 init_~r412~0#1 := (if 0 == init_~tmp___8~0#1 then 0 else 1); 1472#L616 assume 0 != init_~r421~0#1 % 256;init_~tmp___9~0#1 := 1; 1335#L627 init_~r422~0#1 := (if 0 == init_~tmp___9~0#1 then 0 else 1); 1336#L637 assume 0 != init_~r431~0#1 % 256;init_~tmp___10~0#1 := 1; 1412#L648 init_~r432~0#1 := (if 0 == init_~tmp___10~0#1 then 0 else 1); 1479#L658 assume 0 != init_~r122~0#1 % 256;init_~tmp___11~0#1 := 1; 1306#L669 init_~r123~0#1 := (if 0 == init_~tmp___11~0#1 then 0 else 1); 1425#L679 assume 0 != init_~r132~0#1 % 256;init_~tmp___12~0#1 := 1; 1314#L690 init_~r133~0#1 := (if 0 == init_~tmp___12~0#1 then 0 else 1); 1354#L700 assume 0 != init_~r142~0#1 % 256;init_~tmp___13~0#1 := 1; 1355#L711 init_~r143~0#1 := (if 0 == init_~tmp___13~0#1 then 0 else 1); 1385#L721 assume 0 != init_~r212~0#1 % 256;init_~tmp___14~0#1 := 1; 1258#L732 init_~r213~0#1 := (if 0 == init_~tmp___14~0#1 then 0 else 1); 1315#L742 assume 0 != init_~r232~0#1 % 256;init_~tmp___15~0#1 := 1; 1316#L753 init_~r233~0#1 := (if 0 == init_~tmp___15~0#1 then 0 else 1); 1449#L763 assume 0 != init_~r242~0#1 % 256;init_~tmp___16~0#1 := 1; 1475#L774 init_~r243~0#1 := (if 0 == init_~tmp___16~0#1 then 0 else 1); 1519#L784 assume 0 != init_~r312~0#1 % 256;init_~tmp___17~0#1 := 1; 1390#L795 init_~r313~0#1 := (if 0 == init_~tmp___17~0#1 then 0 else 1); 1383#L805 assume 0 != init_~r322~0#1 % 256;init_~tmp___18~0#1 := 1; 1351#L816 init_~r323~0#1 := (if 0 == init_~tmp___18~0#1 then 0 else 1); 1333#L826 assume 0 != init_~r342~0#1 % 256;init_~tmp___19~0#1 := 1; 1272#L837 init_~r343~0#1 := (if 0 == init_~tmp___19~0#1 then 0 else 1); 1426#L847 assume 0 != init_~r412~0#1 % 256;init_~tmp___20~0#1 := 1; 1428#L858 init_~r413~0#1 := (if 0 == init_~tmp___20~0#1 then 0 else 1); 1296#L868 assume 0 != init_~r422~0#1 % 256;init_~tmp___21~0#1 := 1; 1297#L879 init_~r423~0#1 := (if 0 == init_~tmp___21~0#1 then 0 else 1); 1259#L889 assume 0 != init_~r432~0#1 % 256;init_~tmp___22~0#1 := 1; 1260#L900 init_~r433~0#1 := (if 0 == init_~tmp___22~0#1 then 0 else 1); 1276#L910 assume !(~id1~0 != ~id2~0);init_~tmp___23~0#1 := 0; 1244#L910-1 init_#res#1 := init_~tmp___23~0#1; 1262#L1079 main_#t~ret44#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret44#1;havoc main_#t~ret44#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; 1263#L22 assume !(0 == assume_abort_if_not_~cond#1); 1327#L21 assume { :end_inline_assume_abort_if_not } true;~p12_old~0 := ~nomsg~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~nomsg~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~nomsg~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~nomsg~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~nomsg~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~nomsg~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~nomsg~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~nomsg~0;~p43_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 1402#L1216-2 [2022-11-21 16:56:22,176 INFO L750 eck$LassoCheckResult]: Loop: 1402#L1216-2 assume !false;assume { :begin_inline_node1 } true; 1531#L110 assume !(0 != ~mode1~0 % 256); 1530#L145 assume ~r1~0 % 256 < 3; 1391#L146 assume 0 != ~ep12~0 % 256;~p12_new~0 := (if (if ~max1~0 != ~nomsg~0 && ~p12_new~0 == ~nomsg~0 then ~max1~0 else ~p12_new~0) % 256 <= 127 then (if ~max1~0 != ~nomsg~0 && ~p12_new~0 == ~nomsg~0 then ~max1~0 else ~p12_new~0) % 256 else (if ~max1~0 != ~nomsg~0 && ~p12_new~0 == ~nomsg~0 then ~max1~0 else ~p12_new~0) % 256 - 256); 1392#L146-2 assume 0 != ~ep13~0 % 256;~p13_new~0 := (if (if ~max1~0 != ~nomsg~0 && ~p13_new~0 == ~nomsg~0 then ~max1~0 else ~p13_new~0) % 256 <= 127 then (if ~max1~0 != ~nomsg~0 && ~p13_new~0 == ~nomsg~0 then ~max1~0 else ~p13_new~0) % 256 else (if ~max1~0 != ~nomsg~0 && ~p13_new~0 == ~nomsg~0 then ~max1~0 else ~p13_new~0) % 256 - 256); 1442#L149-1 assume 0 != ~ep14~0 % 256;~p14_new~0 := (if (if ~max1~0 != ~nomsg~0 && ~p14_new~0 == ~nomsg~0 then ~max1~0 else ~p14_new~0) % 256 <= 127 then (if ~max1~0 != ~nomsg~0 && ~p14_new~0 == ~nomsg~0 then ~max1~0 else ~p14_new~0) % 256 else (if ~max1~0 != ~nomsg~0 && ~p14_new~0 == ~nomsg~0 then ~max1~0 else ~p14_new~0) % 256 - 256); 1443#L145-1 ~mode1~0 := 1; 1590#L110-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true; 1588#L166 assume !(0 != ~mode2~0 % 256); 1589#L201 assume !(~r2~0 % 256 < 3); 1571#L201-1 ~mode2~0 := 1; 1570#L166-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true; 1568#L222 assume !(0 != ~mode3~0 % 256); 1564#L257 assume !(~r3~0 % 256 < 3); 1559#L257-1 ~mode3~0 := 1; 1558#L222-2 assume { :end_inline_node3 } true;assume { :begin_inline_node4 } true; 1548#L278 assume !(0 != ~mode4~0 % 256); 1543#L313 assume !(~r4~0 % 256 < 3); 1541#L313-1 ~mode4~0 := 1; 1540#L278-2 assume { :end_inline_node4 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_new~0 := ~nomsg~0;~p14_old~0 := ~p14_new~0;~p14_new~0 := ~nomsg~0;~p21_old~0 := ~p21_new~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~p23_new~0;~p23_new~0 := ~nomsg~0;~p24_old~0 := ~p24_new~0;~p24_new~0 := ~nomsg~0;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;~p34_old~0 := ~p34_new~0;~p34_new~0 := ~nomsg~0;~p41_old~0 := ~p41_new~0;~p41_new~0 := ~nomsg~0;~p42_old~0 := ~p42_new~0;~p42_new~0 := ~nomsg~0;~p43_old~0 := ~p43_new~0;~p43_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 1539#L1087 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 1538#L1088 assume ~st1~0 + ~nl1~0 <= 1; 1537#L1089 assume ~st2~0 + ~nl2~0 <= 1; 1536#L1090 assume ~st3~0 + ~nl3~0 <= 1; 1535#L1091 assume ~st4~0 + ~nl4~0 <= 1; 1534#L1092 assume !(~r1~0 % 256 >= 3); 1496#L1095 assume 0 == ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0; 1497#L1096 assume ~r1~0 % 256 < 3; 1529#L1101 assume !(~r1~0 % 256 >= 3); 1367#L1105 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0 + ~nl4~0; 1368#L1106 assume ~r1~0 % 256 < 3;check_~tmp~1#1 := 1; 1445#L1087-1 check_#res#1 := check_~tmp~1#1; 1446#L1139 main_#t~ret45#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret45#1;havoc main_#t~ret45#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; 1476#L1258 assume !(0 == assert_~arg#1 % 256); 1477#L1253 assume { :end_inline_assert } true; 1402#L1216-2 [2022-11-21 16:56:22,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:22,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2041231622, now seen corresponding path program 3 times [2022-11-21 16:56:22,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:22,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276589204] [2022-11-21 16:56:22,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:22,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:56:22,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:56:22,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276589204] [2022-11-21 16:56:22,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276589204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:56:22,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:56:22,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:56:22,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190430127] [2022-11-21 16:56:22,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:56:22,364 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 16:56:22,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:22,365 INFO L85 PathProgramCache]: Analyzing trace with hash 287650636, now seen corresponding path program 1 times [2022-11-21 16:56:22,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:22,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345427603] [2022-11-21 16:56:22,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:22,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:56:22,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:56:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:56:22,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:56:26,876 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:56:26,877 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:56:26,877 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:56:26,878 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:56:26,878 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 16:56:26,878 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:56:26,878 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:56:26,878 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:56:26,878 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.3.ufo.UNBOUNDED.pals.c_Iteration3_Loop [2022-11-21 16:56:26,879 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:56:26,879 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:56:26,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:26,965 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:26,971 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:26,977 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:26,980 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:26,985 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:26,989 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:27,004 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:27,007 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:28,052 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:28,056 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:28,062 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:28,070 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:28,074 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:28,080 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:28,086 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:56:29,470 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2022-11-21 16:56:33,137 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 66996 conjuctions. This might take some time... [2022-11-21 16:58:59,553 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 4336 conjuctions. [2022-11-21 17:08:15,091 WARN L233 SmtUtils]: Spent 9.25m on a formula simplification. DAG size of input: 2432 DAG size of output: 350 (called from [L 68] de.uni_freiburg.informatik.ultimate.icfgtransformer.transformulatransformers.SimplifyPreprocessor.process) [2022-11-21 17:08:15,373 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 17:08:15,374 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 17:08:15,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:08:15,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:15,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:08:15,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:08:15,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:08:15,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 17:08:15,412 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 17:08:15,413 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret45#1=0} Honda state: {ULTIMATE.start_main_#t~ret45#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 17:08:15,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:15,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:08:15,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:15,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:08:15,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 17:08:15,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:08:15,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 17:08:15,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:15,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:08:15,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:15,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:08:15,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 17:08:15,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 17:08:15,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 17:08:15,625 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 17:08:15,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e77566-00fe-4ad5-b05d-81a54fea3efb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:15,634 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 17:08:15,635 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 17:08:15,635 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 17:08:15,635 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 17:08:15,635 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 17:08:15,635 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:08:15,635 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 17:08:15,635 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 17:08:15,635 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.4.3.ufo.UNBOUNDED.pals.c_Iteration3_Loop [2022-11-21 17:08:15,635 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 17:08:15,635 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 17:08:15,651 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:15,671 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:15,674 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:15,680 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:15,683 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:16,881 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:16,885 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:16,889 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:16,907 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:16,911 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:16,916 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:16,923 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:16,933 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:16,937 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:16,945 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:16,953 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 17:08:18,641 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 14 [2022-11-21 17:08:20,495 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 90540 conjuctions. This might take some time...