./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f 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_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8 --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 cf92f342b2da275c63d151f2d4ed52683d7003506826ae2897efde5e3c66195f --- 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-e04fb08 [2022-11-16 12:10:43,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:10:43,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:10:43,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:10:43,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:10:43,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:10:43,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:10:43,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:10:43,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:10:43,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:10:43,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:10:43,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:10:43,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:10:43,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:10:43,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:10:43,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:10:43,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:10:43,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:10:43,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:10:43,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:10:43,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:10:43,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:10:43,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:10:43,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:10:43,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:10:43,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:10:43,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:10:43,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:10:43,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:10:43,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:10:43,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:10:43,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:10:43,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:10:43,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:10:43,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:10:43,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:10:43,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:10:43,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:10:43,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:10:43,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:10:43,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:10:43,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 12:10:43,657 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:10:43,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:10:43,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:10:43,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:10:43,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:10:43,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:10:43,660 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:10:43,660 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:10:43,661 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:10:43,661 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:10:43,662 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:10:43,662 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:10:43,662 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:10:43,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:10:43,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:10:43,663 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:10:43,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:10:43,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:10:43,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:10:43,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:10:43,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:10:43,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:10:43,665 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:10:43,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:10:43,665 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:10:43,666 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:10:43,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:10:43,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:10:43,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:10:43,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:10:43,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:10:43,668 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:10:43,668 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_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf92f342b2da275c63d151f2d4ed52683d7003506826ae2897efde5e3c66195f [2022-11-16 12:10:43,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:10:44,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:10:44,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:10:44,004 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:10:44,005 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:10:44,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2022-11-16 12:10:44,075 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/data/5a635bf49/1c2a4d589a7642ad91c3e460d304df41/FLAG9b6c72942 [2022-11-16 12:10:44,639 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:10:44,640 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2022-11-16 12:10:44,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/data/5a635bf49/1c2a4d589a7642ad91c3e460d304df41/FLAG9b6c72942 [2022-11-16 12:10:44,910 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/data/5a635bf49/1c2a4d589a7642ad91c3e460d304df41 [2022-11-16 12:10:44,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:10:44,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:10:44,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:10:44,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:10:44,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:10:44,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:44,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fad7f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44, skipping insertion in model container [2022-11-16 12:10:44,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:44,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:10:44,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:10:45,373 WARN L229 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_c89eda54-3de5-400a-8812-66549a764f75/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c[14373,14386] [2022-11-16 12:10:45,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:10:45,388 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:10:45,484 WARN L229 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_c89eda54-3de5-400a-8812-66549a764f75/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c[14373,14386] [2022-11-16 12:10:45,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:10:45,499 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:10:45,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45 WrapperNode [2022-11-16 12:10:45,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:10:45,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:10:45,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:10:45,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:10:45,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (1/1) ... [2022-11-16 12:10:45,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (1/1) ... [2022-11-16 12:10:45,565 INFO L138 Inliner]: procedures = 22, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 435 [2022-11-16 12:10:45,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:10:45,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:10:45,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:10:45,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:10:45,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (1/1) ... [2022-11-16 12:10:45,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (1/1) ... [2022-11-16 12:10:45,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (1/1) ... [2022-11-16 12:10:45,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (1/1) ... [2022-11-16 12:10:45,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (1/1) ... [2022-11-16 12:10:45,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (1/1) ... [2022-11-16 12:10:45,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (1/1) ... [2022-11-16 12:10:45,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (1/1) ... [2022-11-16 12:10:45,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:10:45,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:10:45,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:10:45,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:10:45,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (1/1) ... [2022-11-16 12:10:45,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:45,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:45,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:45,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:10:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:10:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:10:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:10:45,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:10:45,907 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:10:45,916 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:10:46,592 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:10:46,605 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:10:46,605 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:10:46,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:10:46 BoogieIcfgContainer [2022-11-16 12:10:46,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:10:46,609 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:10:46,609 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:10:46,614 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:10:46,615 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:10:46,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:10:44" (1/3) ... [2022-11-16 12:10:46,617 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38724b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:10:46, skipping insertion in model container [2022-11-16 12:10:46,617 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:10:46,617 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:45" (2/3) ... [2022-11-16 12:10:46,618 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38724b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:10:46, skipping insertion in model container [2022-11-16 12:10:46,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:10:46,618 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:10:46" (3/3) ... [2022-11-16 12:10:46,620 INFO L332 chiAutomizerObserver]: Analyzing ICFG pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2022-11-16 12:10:46,707 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:10:46,707 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:10:46,708 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:10:46,708 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:10:46,708 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:10:46,708 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:10:46,709 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:10:46,709 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:10:46,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.7751937984496124) internal successors, (229), 129 states have internal predecessors, (229), 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) [2022-11-16 12:10:46,745 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2022-11-16 12:10:46,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:10:46,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:10:46,755 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] [2022-11-16 12:10:46,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:10:46,756 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:10:46,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.7751937984496124) internal successors, (229), 129 states have internal predecessors, (229), 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) [2022-11-16 12:10:46,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 66 [2022-11-16 12:10:46,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:10:46,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:10:46,768 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] [2022-11-16 12:10:46,768 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:10:46,778 INFO L748 eck$LassoCheckResult]: Stem: 110#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(43, 2);call #Ultimate.allocInit(12, 3);~r2~0 := 0;~r3~0 := 0;~ep23~0 := 0;~ep21~0 := 0;~p31_new~0 := 0;~p12~0 := 0;~p13~0 := 0;~p23_new~0 := 0;~p31_old~0 := 0;~p32_old~0 := 0;~p23_old~0 := 0;~p32_new~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~ep12~0 := 0;~p13_old~0 := 0;~p21~0 := 0;~p23~0 := 0;~nl1~0 := 0;~nl3~0 := 0;~nl2~0 := 0;~p12_new~0 := 0;~p12_old~0 := 0;~mode3~0 := 0;~p32~0 := 0;~p31~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~m1~0 := 0;~ep32~0 := 0;~m2~0 := 0;~ep31~0 := 0;~m3~0 := 0;~newmax2~0 := 0;~newmax3~0 := 0;~newmax1~0 := 0;~st2~0 := 0;~st1~0 := 0;~st3~0 := 0;~id2~0 := 0;~id1~0 := 0;~id3~0 := 0;~p21_new~0 := 0;~p21_old~0 := 0;~max3~0 := 0;~max2~0 := 0;~max1~0 := 0;~r1~0 := 0; 38#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~ret34#1, main_#t~ret35#1, main_#t~post36#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;~ep21~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep23~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep31~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep32~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~id1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~st1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~nl1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~m1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~max1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~newmax1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~id2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~r2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~st2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~nl2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~m2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~max2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~newmax2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~id3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~r3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~nl3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~m3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~max3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~newmax3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r211~0#1, init_~r231~0#1, init_~r311~0#1, init_~r321~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r212~0#1, init_~tmp___1~0#1, init_~r232~0#1, init_~tmp___2~0#1, init_~r312~0#1, init_~tmp___3~0#1, init_~r322~0#1, init_~tmp___4~0#1, init_~tmp___5~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r212~0#1;havoc init_~tmp___1~0#1;havoc init_~r232~0#1;havoc init_~tmp___2~0#1;havoc init_~r312~0#1;havoc init_~tmp___3~0#1;havoc init_~r322~0#1;havoc init_~tmp___4~0#1;havoc init_~tmp___5~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0; 30#L258true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 68#L261-1true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 32#L271true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 70#L274-1true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 52#L284true assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 122#L287-1true init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 33#L297true assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 41#L300-1true init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 61#L310true assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 113#L313-1true init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 3#L323true assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 20#L326-1true init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 69#L336true assume !(~id1~0 != ~id2~0);init_~tmp___5~0#1 := 0; 5#L336-1true init_#res#1 := init_~tmp___5~0#1; 14#L457true main_#t~ret34#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret34#1;havoc main_#t~ret34#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; 87#L21true assume !(0 == assume_abort_if_not_~cond#1); 13#L20true 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;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 31#L568-2true [2022-11-16 12:10:46,787 INFO L750 eck$LassoCheckResult]: Loop: 31#L568-2true assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_~newmax~0#1;havoc node1_~newmax~0#1;node1_~newmax~0#1 := 0; 82#L82true assume !(0 != ~mode1~0 % 256); 58#L110true assume !(~r1~0 < 2); 16#L110-1true ~mode1~0 := 1; 121#L82-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~newmax~1#1;havoc node2_~newmax~1#1;node2_~newmax~1#1 := 0; 101#L133true assume !(0 != ~mode2~0 % 256); 8#L161true assume !(~r2~0 < 2); 60#L161-1true ~mode2~0 := 1; 22#L133-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 73#L184true assume !(0 != ~mode3~0 % 256); 62#L212true assume !(~r3~0 < 2); 90#L212-1true ~mode3~0 := 1; 72#L184-2true assume { :end_inline_node3 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_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;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 125#L465true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; 120#L465-1true check_#res#1 := check_~tmp~1#1; 88#L513true main_#t~ret35#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret35#1;havoc main_#t~ret35#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; 107#L598true assume !(0 == assert_~arg#1 % 256); 67#L593true assume { :end_inline_assert } true;main_#t~post36#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post36#1;havoc main_#t~post36#1; 31#L568-2true [2022-11-16 12:10:46,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:46,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1744745224, now seen corresponding path program 1 times [2022-11-16 12:10:46,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:46,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824856179] [2022-11-16 12:10:46,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:46,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:47,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:47,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824856179] [2022-11-16 12:10:47,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824856179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:47,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:47,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:10:47,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946392826] [2022-11-16 12:10:47,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:47,403 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 12:10:47,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:47,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1547057202, now seen corresponding path program 1 times [2022-11-16 12:10:47,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:47,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640954091] [2022-11-16 12:10:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:47,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:47,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:47,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:47,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640954091] [2022-11-16 12:10:47,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640954091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:47,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:47,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:10:47,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553883707] [2022-11-16 12:10:47,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:47,741 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 12:10:47,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:47,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:10:47,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:10:47,779 INFO L87 Difference]: Start difference. First operand has 130 states, 129 states have (on average 1.7751937984496124) internal successors, (229), 129 states have internal predecessors, (229), 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 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-16 12:10:47,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:47,943 INFO L93 Difference]: Finished difference Result 134 states and 229 transitions. [2022-11-16 12:10:47,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 134 states and 229 transitions. [2022-11-16 12:10:47,959 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2022-11-16 12:10:47,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 134 states to 125 states and 213 transitions. [2022-11-16 12:10:47,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2022-11-16 12:10:47,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2022-11-16 12:10:47,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 213 transitions. [2022-11-16 12:10:47,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:10:47,969 INFO L218 hiAutomatonCegarLoop]: Abstraction has 125 states and 213 transitions. [2022-11-16 12:10:47,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 213 transitions. [2022-11-16 12:10:48,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-11-16 12:10:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.704) internal successors, (213), 124 states have internal predecessors, (213), 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) [2022-11-16 12:10:48,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 213 transitions. [2022-11-16 12:10:48,028 INFO L240 hiAutomatonCegarLoop]: Abstraction has 125 states and 213 transitions. [2022-11-16 12:10:48,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:10:48,037 INFO L428 stractBuchiCegarLoop]: Abstraction has 125 states and 213 transitions. [2022-11-16 12:10:48,037 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 12:10:48,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 213 transitions. [2022-11-16 12:10:48,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2022-11-16 12:10:48,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:10:48,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:10:48,047 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] [2022-11-16 12:10:48,047 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] [2022-11-16 12:10:48,048 INFO L748 eck$LassoCheckResult]: Stem: 400#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(43, 2);call #Ultimate.allocInit(12, 3);~r2~0 := 0;~r3~0 := 0;~ep23~0 := 0;~ep21~0 := 0;~p31_new~0 := 0;~p12~0 := 0;~p13~0 := 0;~p23_new~0 := 0;~p31_old~0 := 0;~p32_old~0 := 0;~p23_old~0 := 0;~p32_new~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~ep12~0 := 0;~p13_old~0 := 0;~p21~0 := 0;~p23~0 := 0;~nl1~0 := 0;~nl3~0 := 0;~nl2~0 := 0;~p12_new~0 := 0;~p12_old~0 := 0;~mode3~0 := 0;~p32~0 := 0;~p31~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~m1~0 := 0;~ep32~0 := 0;~m2~0 := 0;~ep31~0 := 0;~m3~0 := 0;~newmax2~0 := 0;~newmax3~0 := 0;~newmax1~0 := 0;~st2~0 := 0;~st1~0 := 0;~st3~0 := 0;~id2~0 := 0;~id1~0 := 0;~id3~0 := 0;~p21_new~0 := 0;~p21_old~0 := 0;~max3~0 := 0;~max2~0 := 0;~max1~0 := 0;~r1~0 := 0; 351#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~ret34#1, main_#t~ret35#1, main_#t~post36#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;~ep21~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep23~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep31~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep32~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~id1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~st1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~nl1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~m1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~max1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~newmax1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~id2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~r2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~st2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~nl2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~m2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~max2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~newmax2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~id3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~r3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~nl3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~m3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~max3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~newmax3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r211~0#1, init_~r231~0#1, init_~r311~0#1, init_~r321~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r212~0#1, init_~tmp___1~0#1, init_~r232~0#1, init_~tmp___2~0#1, init_~r312~0#1, init_~tmp___3~0#1, init_~r322~0#1, init_~tmp___4~0#1, init_~tmp___5~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r212~0#1;havoc init_~tmp___1~0#1;havoc init_~r232~0#1;havoc init_~tmp___2~0#1;havoc init_~r312~0#1;havoc init_~tmp___3~0#1;havoc init_~r322~0#1;havoc init_~tmp___4~0#1;havoc init_~tmp___5~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0; 335#L258 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 336#L261-1 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 339#L271 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 340#L274-1 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 366#L284 assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 326#L287-1 init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 342#L297 assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 343#L300-1 init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 355#L310 assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 319#L313-1 init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 282#L323 assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 284#L326-1 init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 316#L336 assume !(~id1~0 != ~id2~0);init_~tmp___5~0#1 := 0; 287#L336-1 init_#res#1 := init_~tmp___5~0#1; 288#L457 main_#t~ret34#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret34#1;havoc main_#t~ret34#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; 309#L21 assume !(0 == assume_abort_if_not_~cond#1); 305#L20 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;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 306#L568-2 [2022-11-16 12:10:48,050 INFO L750 eck$LassoCheckResult]: Loop: 306#L568-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_~newmax~0#1;havoc node1_~newmax~0#1;node1_~newmax~0#1 := 0; 338#L82 assume !(0 != ~mode1~0 % 256); 372#L110 assume !(~r1~0 < 2); 290#L110-1 ~mode1~0 := 1; 310#L82-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~newmax~1#1;havoc node2_~newmax~1#1;node2_~newmax~1#1 := 0; 395#L133 assume !(0 != ~mode2~0 % 256); 293#L161 assume !(~r2~0 < 2); 286#L161-1 ~mode2~0 := 1; 320#L133-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 321#L184 assume !(0 != ~mode3~0 % 256); 375#L212 assume !(~r3~0 < 2); 376#L212-1 ~mode3~0 := 1; 381#L184-2 assume { :end_inline_node3 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_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;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 382#L465 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 405#L466 assume ~st1~0 + ~nl1~0 <= 1; 406#L467 assume ~st2~0 + ~nl2~0 <= 1; 401#L468 assume ~st3~0 + ~nl3~0 <= 1; 295#L469 assume ~r1~0 >= 2; 296#L473 assume ~r1~0 < 2; 331#L478 assume ~r1~0 >= 2; 365#L483 assume ~r1~0 < 2;check_~tmp~1#1 := 1; 304#L465-1 check_#res#1 := check_~tmp~1#1; 391#L513 main_#t~ret35#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret35#1;havoc main_#t~ret35#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; 392#L598 assume !(0 == assert_~arg#1 % 256); 380#L593 assume { :end_inline_assert } true;main_#t~post36#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post36#1;havoc main_#t~post36#1; 306#L568-2 [2022-11-16 12:10:48,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:48,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1744745224, now seen corresponding path program 2 times [2022-11-16 12:10:48,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:48,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031950297] [2022-11-16 12:10:48,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:48,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:48,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:48,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031950297] [2022-11-16 12:10:48,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031950297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:48,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:48,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:10:48,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771645564] [2022-11-16 12:10:48,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:48,231 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 12:10:48,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:48,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1448741232, now seen corresponding path program 1 times [2022-11-16 12:10:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:48,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282424320] [2022-11-16 12:10:48,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:48,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:48,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:48,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:48,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282424320] [2022-11-16 12:10:48,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282424320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:48,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:48,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:10:48,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831773553] [2022-11-16 12:10:48,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:48,288 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 12:10:48,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:48,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:10:48,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:10:48,291 INFO L87 Difference]: Start difference. First operand 125 states and 213 transitions. cyclomatic complexity: 89 Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:48,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:48,405 INFO L93 Difference]: Finished difference Result 128 states and 215 transitions. [2022-11-16 12:10:48,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 215 transitions. [2022-11-16 12:10:48,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2022-11-16 12:10:48,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 125 states and 183 transitions. [2022-11-16 12:10:48,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2022-11-16 12:10:48,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2022-11-16 12:10:48,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 183 transitions. [2022-11-16 12:10:48,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:10:48,417 INFO L218 hiAutomatonCegarLoop]: Abstraction has 125 states and 183 transitions. [2022-11-16 12:10:48,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 183 transitions. [2022-11-16 12:10:48,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-11-16 12:10:48,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.464) internal successors, (183), 124 states have internal predecessors, (183), 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) [2022-11-16 12:10:48,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2022-11-16 12:10:48,431 INFO L240 hiAutomatonCegarLoop]: Abstraction has 125 states and 183 transitions. [2022-11-16 12:10:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:10:48,434 INFO L428 stractBuchiCegarLoop]: Abstraction has 125 states and 183 transitions. [2022-11-16 12:10:48,435 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 12:10:48,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 183 transitions. [2022-11-16 12:10:48,439 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 65 [2022-11-16 12:10:48,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:10:48,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:10:48,442 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] [2022-11-16 12:10:48,443 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] [2022-11-16 12:10:48,444 INFO L748 eck$LassoCheckResult]: Stem: 666#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(43, 2);call #Ultimate.allocInit(12, 3);~r2~0 := 0;~r3~0 := 0;~ep23~0 := 0;~ep21~0 := 0;~p31_new~0 := 0;~p12~0 := 0;~p13~0 := 0;~p23_new~0 := 0;~p31_old~0 := 0;~p32_old~0 := 0;~p23_old~0 := 0;~p32_new~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~ep12~0 := 0;~p13_old~0 := 0;~p21~0 := 0;~p23~0 := 0;~nl1~0 := 0;~nl3~0 := 0;~nl2~0 := 0;~p12_new~0 := 0;~p12_old~0 := 0;~mode3~0 := 0;~p32~0 := 0;~p31~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~m1~0 := 0;~ep32~0 := 0;~m2~0 := 0;~ep31~0 := 0;~m3~0 := 0;~newmax2~0 := 0;~newmax3~0 := 0;~newmax1~0 := 0;~st2~0 := 0;~st1~0 := 0;~st3~0 := 0;~id2~0 := 0;~id1~0 := 0;~id3~0 := 0;~p21_new~0 := 0;~p21_old~0 := 0;~max3~0 := 0;~max2~0 := 0;~max1~0 := 0;~r1~0 := 0; 617#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~ret34#1, main_#t~ret35#1, main_#t~post36#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;~ep21~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep23~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep31~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep32~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~id1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~st1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~nl1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~m1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~max1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~newmax1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~id2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~r2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~st2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~nl2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~m2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~max2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~newmax2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~id3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~r3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~nl3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~m3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~max3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~newmax3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r211~0#1, init_~r231~0#1, init_~r311~0#1, init_~r321~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r212~0#1, init_~tmp___1~0#1, init_~r232~0#1, init_~tmp___2~0#1, init_~r312~0#1, init_~tmp___3~0#1, init_~r322~0#1, init_~tmp___4~0#1, init_~tmp___5~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r212~0#1;havoc init_~tmp___1~0#1;havoc init_~r232~0#1;havoc init_~tmp___2~0#1;havoc init_~r312~0#1;havoc init_~tmp___3~0#1;havoc init_~r322~0#1;havoc init_~tmp___4~0#1;havoc init_~tmp___5~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0; 601#L258 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 602#L261-1 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 605#L271 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 606#L274-1 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 632#L284 assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 595#L287-1 init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 608#L297 assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 609#L300-1 init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 621#L310 assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 585#L313-1 init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 548#L323 assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 550#L326-1 init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 582#L336 assume ~id1~0 != ~id2~0; 645#L337 assume ~id1~0 != ~id3~0; 622#L338 assume ~id2~0 != ~id3~0; 623#L339 assume ~id1~0 >= 0; 659#L340 assume ~id2~0 >= 0; 654#L341 assume ~id3~0 >= 0; 613#L342 assume 0 == ~r1~0; 614#L343 assume 0 == ~r2~0; 598#L344 assume 0 == ~r3~0; 599#L345 assume 0 != init_~r122~0#1 % 256; 618#L346 assume 0 != init_~r132~0#1 % 256; 619#L347 assume 0 != init_~r212~0#1 % 256; 663#L348 assume 0 != init_~r232~0#1 % 256; 649#L349 assume 0 != init_~r312~0#1 % 256; 650#L350 assume 0 != init_~r322~0#1 % 256; 638#L351 assume ~max1~0 == ~id1~0; 639#L352 assume ~max2~0 == ~id2~0; 656#L353 assume ~max3~0 == ~id3~0; 628#L354 assume 0 == ~st1~0; 615#L355 assume 0 == ~st2~0; 616#L356 assume 0 == ~st3~0; 627#L357 assume 0 == ~nl1~0; 564#L358 assume 0 == ~nl2~0; 565#L359 assume 0 == ~nl3~0; 573#L360 assume 0 == ~mode1~0 % 256; 574#L361 assume 0 == ~mode2~0 % 256; 644#L362 assume 0 == ~mode3~0 % 256; 669#L363 assume 0 != ~newmax1~0 % 256; 670#L364 assume 0 != ~newmax2~0 % 256; 624#L365 assume 0 != ~newmax3~0 % 256;init_~tmp___5~0#1 := 1; 553#L336-1 init_#res#1 := init_~tmp___5~0#1; 554#L457 main_#t~ret34#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret34#1;havoc main_#t~ret34#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; 575#L21 assume !(0 == assume_abort_if_not_~cond#1); 571#L20 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;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 572#L568-2 [2022-11-16 12:10:48,444 INFO L750 eck$LassoCheckResult]: Loop: 572#L568-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_~newmax~0#1;havoc node1_~newmax~0#1;node1_~newmax~0#1 := 0; 604#L82 assume !(0 != ~mode1~0 % 256); 640#L110 assume !(~r1~0 < 2); 556#L110-1 ~mode1~0 := 1; 576#L82-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~newmax~1#1;havoc node2_~newmax~1#1;node2_~newmax~1#1 := 0; 661#L133 assume !(0 != ~mode2~0 % 256); 559#L161 assume !(~r2~0 < 2); 552#L161-1 ~mode2~0 := 1; 586#L133-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 587#L184 assume !(0 != ~mode3~0 % 256); 641#L212 assume !(~r3~0 < 2); 642#L212-1 ~mode3~0 := 1; 647#L184-2 assume { :end_inline_node3 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_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;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 648#L465 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 671#L466 assume ~st1~0 + ~nl1~0 <= 1; 672#L467 assume ~st2~0 + ~nl2~0 <= 1; 667#L468 assume ~st3~0 + ~nl3~0 <= 1; 561#L469 assume ~r1~0 >= 2; 562#L473 assume ~r1~0 < 2; 597#L478 assume ~r1~0 >= 2; 631#L483 assume ~r1~0 < 2;check_~tmp~1#1 := 1; 570#L465-1 check_#res#1 := check_~tmp~1#1; 657#L513 main_#t~ret35#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret35#1;havoc main_#t~ret35#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; 658#L598 assume !(0 == assert_~arg#1 % 256); 646#L593 assume { :end_inline_assert } true;main_#t~post36#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post36#1;havoc main_#t~post36#1; 572#L568-2 [2022-11-16 12:10:48,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash 431062094, now seen corresponding path program 1 times [2022-11-16 12:10:48,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:48,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051945759] [2022-11-16 12:10:48,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:48,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:10:48,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:10:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:10:48,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:10:48,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:48,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1448741232, now seen corresponding path program 2 times [2022-11-16 12:10:48,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:48,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494892860] [2022-11-16 12:10:48,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:48,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:48,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:48,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494892860] [2022-11-16 12:10:48,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494892860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:48,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:48,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:10:48,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458680111] [2022-11-16 12:10:48,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:48,653 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 12:10:48,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:48,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:10:48,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:10:48,654 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. cyclomatic complexity: 59 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-11-16 12:10:48,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:48,702 INFO L93 Difference]: Finished difference Result 174 states and 257 transitions. [2022-11-16 12:10:48,702 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 174 states and 257 transitions. [2022-11-16 12:10:48,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 114 [2022-11-16 12:10:48,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 174 states to 174 states and 257 transitions. [2022-11-16 12:10:48,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2022-11-16 12:10:48,707 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2022-11-16 12:10:48,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 257 transitions. [2022-11-16 12:10:48,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:10:48,713 INFO L218 hiAutomatonCegarLoop]: Abstraction has 174 states and 257 transitions. [2022-11-16 12:10:48,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 257 transitions. [2022-11-16 12:10:48,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-11-16 12:10:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.4770114942528736) internal successors, (257), 173 states have internal predecessors, (257), 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) [2022-11-16 12:10:48,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 257 transitions. [2022-11-16 12:10:48,725 INFO L240 hiAutomatonCegarLoop]: Abstraction has 174 states and 257 transitions. [2022-11-16 12:10:48,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:10:48,730 INFO L428 stractBuchiCegarLoop]: Abstraction has 174 states and 257 transitions. [2022-11-16 12:10:48,730 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 12:10:48,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 257 transitions. [2022-11-16 12:10:48,731 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 114 [2022-11-16 12:10:48,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:10:48,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:10:48,736 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] [2022-11-16 12:10:48,736 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] [2022-11-16 12:10:48,736 INFO L748 eck$LassoCheckResult]: Stem: 976#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(43, 2);call #Ultimate.allocInit(12, 3);~r2~0 := 0;~r3~0 := 0;~ep23~0 := 0;~ep21~0 := 0;~p31_new~0 := 0;~p12~0 := 0;~p13~0 := 0;~p23_new~0 := 0;~p31_old~0 := 0;~p32_old~0 := 0;~p23_old~0 := 0;~p32_new~0 := 0;~p13_new~0 := 0;~ep13~0 := 0;~ep12~0 := 0;~p13_old~0 := 0;~p21~0 := 0;~p23~0 := 0;~nl1~0 := 0;~nl3~0 := 0;~nl2~0 := 0;~p12_new~0 := 0;~p12_old~0 := 0;~mode3~0 := 0;~p32~0 := 0;~p31~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~nomsg~0 := -1;~m1~0 := 0;~ep32~0 := 0;~m2~0 := 0;~ep31~0 := 0;~m3~0 := 0;~newmax2~0 := 0;~newmax3~0 := 0;~newmax1~0 := 0;~st2~0 := 0;~st1~0 := 0;~st3~0 := 0;~id2~0 := 0;~id1~0 := 0;~id3~0 := 0;~p21_new~0 := 0;~p21_old~0 := 0;~max3~0 := 0;~max2~0 := 0;~max1~0 := 0;~r1~0 := 0; 923#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~ret34#1, main_#t~ret35#1, main_#t~post36#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;~ep21~0 := main_#t~nondet6#1;havoc main_#t~nondet6#1;~ep23~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1;~ep31~0 := main_#t~nondet8#1;havoc main_#t~nondet8#1;~ep32~0 := main_#t~nondet9#1;havoc main_#t~nondet9#1;~id1~0 := main_#t~nondet10#1;havoc main_#t~nondet10#1;~r1~0 := main_#t~nondet11#1;havoc main_#t~nondet11#1;~st1~0 := main_#t~nondet12#1;havoc main_#t~nondet12#1;~nl1~0 := main_#t~nondet13#1;havoc main_#t~nondet13#1;~m1~0 := main_#t~nondet14#1;havoc main_#t~nondet14#1;~max1~0 := main_#t~nondet15#1;havoc main_#t~nondet15#1;~mode1~0 := main_#t~nondet16#1;havoc main_#t~nondet16#1;~newmax1~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~id2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~r2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~st2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~nl2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~m2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~max2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~mode2~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~newmax2~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~id3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~r3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~st3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~nl3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~m3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#1;~max3~0 := main_#t~nondet31#1;havoc main_#t~nondet31#1;~mode3~0 := main_#t~nondet32#1;havoc main_#t~nondet32#1;~newmax3~0 := main_#t~nondet33#1;havoc main_#t~nondet33#1;assume { :begin_inline_init } true;havoc init_#res#1;havoc init_~r121~0#1, init_~r131~0#1, init_~r211~0#1, init_~r231~0#1, init_~r311~0#1, init_~r321~0#1, init_~r122~0#1, init_~tmp~0#1, init_~r132~0#1, init_~tmp___0~0#1, init_~r212~0#1, init_~tmp___1~0#1, init_~r232~0#1, init_~tmp___2~0#1, init_~r312~0#1, init_~tmp___3~0#1, init_~r322~0#1, init_~tmp___4~0#1, init_~tmp___5~0#1;havoc init_~r121~0#1;havoc init_~r131~0#1;havoc init_~r211~0#1;havoc init_~r231~0#1;havoc init_~r311~0#1;havoc init_~r321~0#1;havoc init_~r122~0#1;havoc init_~tmp~0#1;havoc init_~r132~0#1;havoc init_~tmp___0~0#1;havoc init_~r212~0#1;havoc init_~tmp___1~0#1;havoc init_~r232~0#1;havoc init_~tmp___2~0#1;havoc init_~r312~0#1;havoc init_~tmp___3~0#1;havoc init_~r322~0#1;havoc init_~tmp___4~0#1;havoc init_~tmp___5~0#1;init_~r121~0#1 := ~ep12~0;init_~r131~0#1 := ~ep13~0;init_~r211~0#1 := ~ep21~0;init_~r231~0#1 := ~ep23~0;init_~r311~0#1 := ~ep31~0;init_~r321~0#1 := ~ep32~0; 905#L258 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 906#L261-1 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 909#L271 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 910#L274-1 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 938#L284 assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 899#L287-1 init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 912#L297 assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 913#L300-1 init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 927#L310 assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 889#L313-1 init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 853#L323 assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 855#L326-1 init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 886#L336 assume ~id1~0 != ~id2~0; 952#L337 assume ~id1~0 != ~id3~0; 928#L338 assume ~id2~0 != ~id3~0; 929#L339 assume ~id1~0 >= 0; 969#L340 assume ~id2~0 >= 0; 961#L341 assume ~id3~0 >= 0; 919#L342 assume 0 == ~r1~0; 920#L343 assume 0 == ~r2~0; 902#L344 assume 0 == ~r3~0; 903#L345 assume 0 != init_~r122~0#1 % 256; 924#L346 assume 0 != init_~r132~0#1 % 256; 925#L347 assume 0 != init_~r212~0#1 % 256; 973#L348 assume 0 != init_~r232~0#1 % 256; 956#L349 assume 0 != init_~r312~0#1 % 256; 957#L350 assume 0 != init_~r322~0#1 % 256; 946#L351 assume ~max1~0 == ~id1~0; 947#L352 assume ~max2~0 == ~id2~0; 964#L353 assume ~max3~0 == ~id3~0; 934#L354 assume 0 == ~st1~0; 921#L355 assume 0 == ~st2~0; 922#L356 assume 0 == ~st3~0; 933#L357 assume 0 == ~nl1~0; 871#L358 assume 0 == ~nl2~0; 872#L359 assume 0 == ~nl3~0; 877#L360 assume 0 == ~mode1~0 % 256; 878#L361 assume 0 == ~mode2~0 % 256; 951#L362 assume 0 == ~mode3~0 % 256; 979#L363 assume 0 != ~newmax1~0 % 256; 981#L364 assume 0 != ~newmax2~0 % 256; 930#L365 assume 0 != ~newmax3~0 % 256;init_~tmp___5~0#1 := 1; 858#L336-1 init_#res#1 := init_~tmp___5~0#1; 859#L457 main_#t~ret34#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret34#1;havoc main_#t~ret34#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; 879#L21 assume !(0 == assume_abort_if_not_~cond#1); 875#L20 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;~p21_old~0 := ~nomsg~0;~p21_new~0 := ~nomsg~0;~p23_old~0 := ~nomsg~0;~p23_new~0 := ~nomsg~0;~p31_old~0 := ~nomsg~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~nomsg~0;~p32_new~0 := ~nomsg~0;main_~i2~0#1 := 0; 876#L568-2 [2022-11-16 12:10:48,737 INFO L750 eck$LassoCheckResult]: Loop: 876#L568-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true;havoc node1_~newmax~0#1;havoc node1_~newmax~0#1;node1_~newmax~0#1 := 0; 908#L82 assume !(0 != ~mode1~0 % 256); 962#L110 assume ~r1~0 < 2; 882#L111 assume !(0 != ~ep12~0 % 256); 884#L111-1 assume !(0 != ~ep13~0 % 256); 861#L110-1 ~mode1~0 := 1; 880#L82-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true;havoc node2_~newmax~1#1;havoc node2_~newmax~1#1;node2_~newmax~1#1 := 0; 971#L133 assume !(0 != ~mode2~0 % 256); 864#L161 assume !(~r2~0 < 2); 857#L161-1 ~mode2~0 := 1; 890#L133-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true;havoc node3_~newmax~2#1;havoc node3_~newmax~2#1;node3_~newmax~2#1 := 0; 891#L184 assume !(0 != ~mode3~0 % 256); 948#L212 assume !(~r3~0 < 2); 949#L212-1 ~mode3~0 := 1; 967#L184-2 assume { :end_inline_node3 } true;~p12_old~0 := ~p12_new~0;~p12_new~0 := ~nomsg~0;~p13_old~0 := ~p13_new~0;~p13_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;~p31_old~0 := ~p31_new~0;~p31_new~0 := ~nomsg~0;~p32_old~0 := ~p32_new~0;~p32_new~0 := ~nomsg~0;assume { :begin_inline_check } true;havoc check_#res#1;havoc check_~tmp~1#1;havoc check_~tmp~1#1; 988#L465 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 987#L466 assume ~st1~0 + ~nl1~0 <= 1; 986#L467 assume ~st2~0 + ~nl2~0 <= 1; 985#L468 assume ~st3~0 + ~nl3~0 <= 1; 984#L469 assume !(~r1~0 >= 2); 917#L472 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 918#L473 assume ~r1~0 < 2; 1002#L478 assume !(~r1~0 >= 2); 936#L482 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 937#L483 assume ~r1~0 < 2;check_~tmp~1#1 := 1; 980#L465-1 check_#res#1 := check_~tmp~1#1; 965#L513 main_#t~ret35#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret35#1;havoc main_#t~ret35#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; 966#L598 assume !(0 == assert_~arg#1 % 256); 953#L593 assume { :end_inline_assert } true;main_#t~post36#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post36#1;havoc main_#t~post36#1; 876#L568-2 [2022-11-16 12:10:48,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:48,738 INFO L85 PathProgramCache]: Analyzing trace with hash 431062094, now seen corresponding path program 2 times [2022-11-16 12:10:48,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:48,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996268165] [2022-11-16 12:10:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:48,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:10:48,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:10:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:10:48,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:10:48,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:48,865 INFO L85 PathProgramCache]: Analyzing trace with hash 18424674, now seen corresponding path program 1 times [2022-11-16 12:10:48,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:48,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065059381] [2022-11-16 12:10:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:48,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:10:48,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:10:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:10:48,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:10:48,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:48,900 INFO L85 PathProgramCache]: Analyzing trace with hash 135841333, now seen corresponding path program 1 times [2022-11-16 12:10:48,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:48,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276853715] [2022-11-16 12:10:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:48,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:49,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:49,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276853715] [2022-11-16 12:10:49,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276853715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:49,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:49,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:10:49,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003281873] [2022-11-16 12:10:49,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:49,830 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:10:49,831 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:10:49,831 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:10:49,831 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:10:49,831 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:10:49,832 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:49,832 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:10:49,832 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:10:49,832 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2022-11-16 12:10:49,832 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:10:49,832 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:10:49,855 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,865 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,871 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,874 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,880 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,894 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,897 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,901 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,907 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,910 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,915 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,927 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,930 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,933 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,956 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,959 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,961 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:49,967 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,468 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:10:50,468 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:10:50,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:50,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:50,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:50,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:10:50,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:10:50,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 12:10:50,508 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 12:10:50,508 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~ep12~0=0} Honda state: {~ep12~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 12:10:50,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:50,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:50,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:50,520 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:50,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 12:10:50,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:10:50,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:10:50,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:50,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:50,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:50,564 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:50,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 12:10:50,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:10:50,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:10:50,686 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:10:50,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:50,689 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:10:50,689 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:10:50,689 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:10:50,689 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:10:50,689 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:10:50,689 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:50,690 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:10:50,690 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:10:50,690 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2022-11-16 12:10:50,690 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:10:50,690 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:10:50,693 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,703 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,706 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,714 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,721 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,724 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,738 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,742 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,746 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,753 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,783 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,787 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,790 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,798 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,807 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,811 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,815 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:50,821 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:10:51,275 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:10:51,279 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:10:51,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:51,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:51,282 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:51,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:10:51,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 12:10:51,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:10:51,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:10:51,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:10:51,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:10:51,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:10:51,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:10:51,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:10:51,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:10:51,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:51,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:51,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:51,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:51,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:10:51,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:10:51,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:10:51,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:10:51,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:10:51,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:10:51,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:10:51,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:10:51,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 12:10:51,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:10:51,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:51,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:51,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:51,381 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:51,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:10:51,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:10:51,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:10:51,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:10:51,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:10:51,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:10:51,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 12:10:51,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:10:51,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:10:51,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:10:51,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:51,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:51,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:51,437 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:51,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:10:51,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:10:51,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:10:51,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:10:51,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:10:51,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:10:51,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:10:51,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:10:51,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 12:10:51,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:10:51,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:51,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:51,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:51,485 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:51,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:10:51,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 12:10:51,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:10:51,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:10:51,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:10:51,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:10:51,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:10:51,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:10:51,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:10:51,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:10:51,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:51,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:51,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:51,527 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:51,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:10:51,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:10:51,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:10:51,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:10:51,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:10:51,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:10:51,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:10:51,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:10:51,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 12:10:51,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:10:51,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:51,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:51,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:51,570 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:51,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 12:10:51,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:10:51,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:10:51,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:10:51,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:10:51,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:10:51,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:10:51,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:10:51,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:10:51,601 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:10:51,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:51,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:51,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:51,605 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:51,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 12:10:51,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:10:51,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:10:51,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:10:51,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:10:51,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:10:51,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:10:51,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:10:51,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:10:51,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 12:10:51,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:51,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:51,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:51,646 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:51,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 12:10:51,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:10:51,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:10:51,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:10:51,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:10:51,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:10:51,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:10:51,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:10:51,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:10:51,678 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:10:51,682 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 12:10:51,682 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 12:10:51,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:10:51,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:51,687 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:51,714 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:10:51,715 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:10:51,715 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:10:51,715 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0#1) = -2*ULTIMATE.start_main_~i2~0#1 + 11 Supporting invariants [] [2022-11-16 12:10:51,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 12:10:51,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:51,725 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:10:51,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:51,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:10:51,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:10:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:51,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:10:51,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:10:52,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-16 12:10:52,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:52,133 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-16 12:10:52,134 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 174 states and 257 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-11-16 12:10:52,211 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 174 states and 257 transitions. cyclomatic complexity: 84. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 287 states and 436 transitions. Complement of second has 4 states. [2022-11-16 12:10:52,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-16 12:10:52,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-11-16 12:10:52,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2022-11-16 12:10:52,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 48 letters. Loop has 29 letters. [2022-11-16 12:10:52,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:10:52,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 77 letters. Loop has 29 letters. [2022-11-16 12:10:52,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:10:52,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 183 transitions. Stem has 48 letters. Loop has 58 letters. [2022-11-16 12:10:52,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:10:52,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 287 states and 436 transitions. [2022-11-16 12:10:52,227 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:10:52,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 287 states to 0 states and 0 transitions. [2022-11-16 12:10:52,227 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 12:10:52,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 12:10:52,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 12:10:52,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:10:52,232 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:10:52,232 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:10:52,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:52,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:10:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:10:52,234 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-11-16 12:10:52,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:52,235 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-16 12:10:52,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-16 12:10:52,235 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:10:52,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:10:52,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 12:10:52,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 12:10:52,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 12:10:52,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:10:52,236 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:10:52,236 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:10:52,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:10:52,239 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:10:52,239 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-16 12:10:52,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:10:52,239 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:10:52,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 12:10:52,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:10:52 BoogieIcfgContainer [2022-11-16 12:10:52,247 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:10:52,248 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:10:52,248 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:10:52,248 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:10:52,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:10:46" (3/4) ... [2022-11-16 12:10:52,252 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:10:52,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:10:52,253 INFO L158 Benchmark]: Toolchain (without parser) took 7338.55ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 91.2MB in the beginning and 130.1MB in the end (delta: -38.8MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2022-11-16 12:10:52,253 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 108.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:10:52,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.00ms. Allocated memory is still 134.2MB. Free memory was 91.0MB in the beginning and 101.9MB in the end (delta: -10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:10:52,263 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.58ms. Allocated memory is still 134.2MB. Free memory was 101.9MB in the beginning and 98.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:10:52,265 INFO L158 Benchmark]: Boogie Preprocessor took 74.66ms. Allocated memory is still 134.2MB. Free memory was 98.8MB in the beginning and 96.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:10:52,266 INFO L158 Benchmark]: RCFGBuilder took 965.46ms. Allocated memory is still 134.2MB. Free memory was 96.4MB in the beginning and 66.6MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-16 12:10:52,266 INFO L158 Benchmark]: BuchiAutomizer took 5637.60ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 66.2MB in the beginning and 131.1MB in the end (delta: -64.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:10:52,267 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 178.3MB. Free memory was 131.1MB in the beginning and 130.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:10:52,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 108.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.00ms. Allocated memory is still 134.2MB. Free memory was 91.0MB in the beginning and 101.9MB in the end (delta: -10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.58ms. Allocated memory is still 134.2MB. Free memory was 101.9MB in the beginning and 98.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.66ms. Allocated memory is still 134.2MB. Free memory was 98.8MB in the beginning and 96.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 965.46ms. Allocated memory is still 134.2MB. Free memory was 96.4MB in the beginning and 66.6MB in the end (delta: 29.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5637.60ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 66.2MB in the beginning and 131.1MB in the end (delta: -64.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 178.3MB. Free memory was 131.1MB in the beginning and 130.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 11 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 353 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 352 mSDsluCounter, 2323 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1527 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 796 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital142 mio100 ax100 hnf100 lsp26 ukn100 mio100 lsp100 div123 bol100 ite100 ukn100 eq182 hnf86 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 12:10:52,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c89eda54-3de5-400a-8812-66549a764f75/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE