./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/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_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/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_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/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 708f088db085ec098a8544d76f8abbece9dbe61a183e0bc1703749c9af891b6b --- 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 11:40:46,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:40:46,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:40:46,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:40:46,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:40:46,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:40:46,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:40:46,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:40:46,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:40:46,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:40:46,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:40:46,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:40:46,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:40:46,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:40:46,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:40:46,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:40:46,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:40:46,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:40:46,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:40:46,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:40:46,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:40:46,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:40:46,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:40:46,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:40:46,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:40:46,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:40:46,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:40:46,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:40:46,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:40:46,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:40:46,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:40:46,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:40:46,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:40:46,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:40:46,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:40:46,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:40:46,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:40:46,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:40:46,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:40:46,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:40:46,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:40:46,865 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 11:40:46,904 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:40:46,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:40:46,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:40:46,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:40:46,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:40:46,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:40:46,907 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:40:46,907 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:40:46,908 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:40:46,908 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:40:46,909 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:40:46,909 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:40:46,910 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:40:46,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:40:46,911 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:40:46,911 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:40:46,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:40:46,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:40:46,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:40:46,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:40:46,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:40:46,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:40:46,913 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:40:46,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:40:46,915 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:40:46,915 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:40:46,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:40:46,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:40:46,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:40:46,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:40:46,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:40:46,918 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:40:46,926 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_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 708f088db085ec098a8544d76f8abbece9dbe61a183e0bc1703749c9af891b6b [2022-11-16 11:40:47,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:40:47,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:40:47,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:40:47,211 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:40:47,212 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:40:47,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2022-11-16 11:40:47,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/data/f824ee048/e7e392f5f04145368c4374b7db3a72af/FLAG4810edbbf [2022-11-16 11:40:47,726 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:40:47,726 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2022-11-16 11:40:47,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/data/f824ee048/e7e392f5f04145368c4374b7db3a72af/FLAG4810edbbf [2022-11-16 11:40:47,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/data/f824ee048/e7e392f5f04145368c4374b7db3a72af [2022-11-16 11:40:47,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:40:47,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:40:47,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:40:47,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:40:47,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:40:47,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:47" (1/1) ... [2022-11-16 11:40:47,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9f495b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:47, skipping insertion in model container [2022-11-16 11:40:47,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:47" (1/1) ... [2022-11-16 11:40:47,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:40:47,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:40:48,177 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_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c[12764,12777] [2022-11-16 11:40:48,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:40:48,186 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:40:48,241 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_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c[12764,12777] [2022-11-16 11:40:48,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:40:48,255 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:40:48,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48 WrapperNode [2022-11-16 11:40:48,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:40:48,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:40:48,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:40:48,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:40:48,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (1/1) ... [2022-11-16 11:40:48,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (1/1) ... [2022-11-16 11:40:48,326 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 397 [2022-11-16 11:40:48,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:40:48,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:40:48,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:40:48,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:40:48,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (1/1) ... [2022-11-16 11:40:48,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (1/1) ... [2022-11-16 11:40:48,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (1/1) ... [2022-11-16 11:40:48,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (1/1) ... [2022-11-16 11:40:48,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (1/1) ... [2022-11-16 11:40:48,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (1/1) ... [2022-11-16 11:40:48,356 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (1/1) ... [2022-11-16 11:40:48,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (1/1) ... [2022-11-16 11:40:48,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:40:48,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:40:48,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:40:48,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:40:48,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (1/1) ... [2022-11-16 11:40:48,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:48,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:48,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:48,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:40:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:40:48,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:40:48,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:40:48,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:40:48,560 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:40:48,562 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:40:49,099 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:40:49,112 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:40:49,112 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:40:49,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:40:49 BoogieIcfgContainer [2022-11-16 11:40:49,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:40:49,119 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:40:49,119 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:40:49,126 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:40:49,127 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:40:49,127 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:40:47" (1/3) ... [2022-11-16 11:40:49,128 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b978cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:40:49, skipping insertion in model container [2022-11-16 11:40:49,128 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:40:49,129 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:48" (2/3) ... [2022-11-16 11:40:49,129 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b978cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:40:49, skipping insertion in model container [2022-11-16 11:40:49,129 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:40:49,129 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:40:49" (3/3) ... [2022-11-16 11:40:49,131 INFO L332 chiAutomizerObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.BOUNDED-6.pals.c [2022-11-16 11:40:49,189 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:40:49,189 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:40:49,189 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:40:49,189 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:40:49,189 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:40:49,189 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:40:49,189 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:40:49,190 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:40:49,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 118 states, 117 states have (on average 1.7777777777777777) internal successors, (208), 117 states have internal predecessors, (208), 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 11:40:49,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 57 [2022-11-16 11:40:49,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:40:49,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:40:49,225 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 11:40:49,225 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 11:40:49,226 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:40:49,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 118 states, 117 states have (on average 1.7777777777777777) internal successors, (208), 117 states have internal predecessors, (208), 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 11:40:49,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 57 [2022-11-16 11:40:49,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:40:49,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:40:49,236 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 11:40:49,236 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 11:40:49,244 INFO L748 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~r2~0 := 0;~r3~0 := 0;~ep23~0 := 0;~mode3~0 := 0;~ep21~0 := 0;~p32~0 := 0;~p31~0 := 0;~p31_new~0 := 0;~p12~0 := 0;~p13~0 := 0;~p23_new~0 := 0;~p31_old~0 := 0;~p32_old~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~p23_old~0 := 0;~p32_new~0 := 0;~p13_new~0 := 0;~nomsg~0 := -1;~ep13~0 := 0;~ep12~0 := 0;~m1~0 := 0;~ep32~0 := 0;~m2~0 := 0;~ep31~0 := 0;~m3~0 := 0;~p13_old~0 := 0;~p21~0 := 0;~p23~0 := 0;~st2~0 := 0;~st1~0 := 0;~nl1~0 := 0;~st3~0 := 0;~nl3~0 := 0;~nl2~0 := 0;~p12_new~0 := 0;~id2~0 := 0;~id1~0 := 0;~id3~0 := 0;~p21_new~0 := 0;~p21_old~0 := 0;~max3~0 := 0;~p12_old~0 := 0;~max2~0 := 0;~max1~0 := 0;~r1~0 := 0; 40#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~ret31#1, main_#t~ret32#1, main_#t~post33#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;~id2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~r2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~st2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~nl2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~m2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~max2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id3~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~r3~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~nl3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~m3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~max3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~mode3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#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; 82#L228true assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 43#L231-1true init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 30#L241true assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 26#L244-1true init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 51#L254true assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 54#L257-1true init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 23#L267true assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 13#L270-1true init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 89#L280true assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 70#L283-1true init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 106#L293true assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 68#L296-1true init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 116#L306true assume !(~id1~0 != ~id2~0);init_~tmp___5~0#1 := 0; 103#L306-1true init_#res#1 := init_~tmp___5~0#1; 98#L415true main_#t~ret31#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 44#L509true assume !(0 == main_~i2~0#1); 77#L509-2true ~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#L523-2true [2022-11-16 11:40:49,245 INFO L750 eck$LassoCheckResult]: Loop: 31#L523-2true assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true; 59#L75true assume !(0 != ~mode1~0 % 256); 56#L100true assume !(~r1~0 < 2); 72#L100-1true ~mode1~0 := 1; 104#L75-2true assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true; 88#L118true assume !(0 != ~mode2~0 % 256); 92#L143true assume !(~r2~0 < 2); 83#L143-1true ~mode2~0 := 1; 57#L118-2true assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true; 12#L161true assume !(0 != ~mode3~0 % 256); 63#L186true assume !(~r3~0 < 2); 25#L186-1true ~mode3~0 := 1; 5#L161-2true 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; 17#L423true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1#1 := 0; 60#L423-1true check_#res#1 := check_~tmp~1#1; 24#L471true main_#t~ret32#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret32#1;havoc main_#t~ret32#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; 75#L553true assume !(0 == assert_~arg#1 % 256); 61#L548true assume { :end_inline_assert } true;main_#t~post33#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post33#1;havoc main_#t~post33#1; 31#L523-2true [2022-11-16 11:40:49,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:49,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 1 times [2022-11-16 11:40:49,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:49,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429933250] [2022-11-16 11:40:49,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:49,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:49,647 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 11:40:49,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:49,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429933250] [2022-11-16 11:40:49,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429933250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:49,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:49,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:40:49,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230400182] [2022-11-16 11:40:49,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:49,659 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:40:49,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:49,663 INFO L85 PathProgramCache]: Analyzing trace with hash -310748369, now seen corresponding path program 1 times [2022-11-16 11:40:49,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:49,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077626406] [2022-11-16 11:40:49,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:49,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:49,914 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 11:40:49,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:49,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077626406] [2022-11-16 11:40:49,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077626406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:49,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:49,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:40:49,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371218306] [2022-11-16 11:40:49,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:49,918 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:40:49,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:49,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:40:49,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:40:49,960 INFO L87 Difference]: Start difference. First operand has 118 states, 117 states have (on average 1.7777777777777777) internal successors, (208), 117 states have internal predecessors, (208), 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 11:40:50,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:40:50,074 INFO L93 Difference]: Finished difference Result 122 states and 208 transitions. [2022-11-16 11:40:50,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 122 states and 208 transitions. [2022-11-16 11:40:50,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2022-11-16 11:40:50,084 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 122 states to 113 states and 192 transitions. [2022-11-16 11:40:50,085 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 113 [2022-11-16 11:40:50,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 113 [2022-11-16 11:40:50,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 113 states and 192 transitions. [2022-11-16 11:40:50,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:50,088 INFO L218 hiAutomatonCegarLoop]: Abstraction has 113 states and 192 transitions. [2022-11-16 11:40:50,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states and 192 transitions. [2022-11-16 11:40:50,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2022-11-16 11:40:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 113 states have (on average 1.6991150442477876) internal successors, (192), 112 states have internal predecessors, (192), 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 11:40:50,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 192 transitions. [2022-11-16 11:40:50,132 INFO L240 hiAutomatonCegarLoop]: Abstraction has 113 states and 192 transitions. [2022-11-16 11:40:50,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:40:50,139 INFO L428 stractBuchiCegarLoop]: Abstraction has 113 states and 192 transitions. [2022-11-16 11:40:50,140 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:40:50,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states and 192 transitions. [2022-11-16 11:40:50,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2022-11-16 11:40:50,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:40:50,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:40:50,155 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 11:40:50,156 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 11:40:50,156 INFO L748 eck$LassoCheckResult]: Stem: 369#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~r2~0 := 0;~r3~0 := 0;~ep23~0 := 0;~mode3~0 := 0;~ep21~0 := 0;~p32~0 := 0;~p31~0 := 0;~p31_new~0 := 0;~p12~0 := 0;~p13~0 := 0;~p23_new~0 := 0;~p31_old~0 := 0;~p32_old~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~p23_old~0 := 0;~p32_new~0 := 0;~p13_new~0 := 0;~nomsg~0 := -1;~ep13~0 := 0;~ep12~0 := 0;~m1~0 := 0;~ep32~0 := 0;~m2~0 := 0;~ep31~0 := 0;~m3~0 := 0;~p13_old~0 := 0;~p21~0 := 0;~p23~0 := 0;~st2~0 := 0;~st1~0 := 0;~nl1~0 := 0;~st3~0 := 0;~nl3~0 := 0;~nl2~0 := 0;~p12_new~0 := 0;~id2~0 := 0;~id1~0 := 0;~id3~0 := 0;~p21_new~0 := 0;~p21_old~0 := 0;~max3~0 := 0;~p12_old~0 := 0;~max2~0 := 0;~max1~0 := 0;~r1~0 := 0; 320#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~ret31#1, main_#t~ret32#1, main_#t~post33#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;~id2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~r2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~st2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~nl2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~m2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~max2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id3~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~r3~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~nl3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~m3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~max3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~mode3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#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; 321#L228 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 324#L231-1 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 307#L241 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 268#L244-1 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 305#L254 assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 313#L257-1 init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 301#L267 assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 272#L270-1 init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 282#L280 assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 344#L283-1 init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 350#L293 assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 315#L296-1 init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 348#L306 assume !(~id1~0 != ~id2~0);init_~tmp___5~0#1 := 0; 260#L306-1 init_#res#1 := init_~tmp___5~0#1; 367#L415 main_#t~ret31#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 325#L509 assume !(0 == main_~i2~0#1); 326#L509-2 ~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; 308#L523-2 [2022-11-16 11:40:50,157 INFO L750 eck$LassoCheckResult]: Loop: 308#L523-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true; 309#L75 assume !(0 != ~mode1~0 % 256); 337#L100 assume !(~r1~0 < 2); 339#L100-1 ~mode1~0 := 1; 298#L75-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true; 359#L118 assume !(0 != ~mode2~0 % 256); 360#L143 assume !(~r2~0 < 2); 349#L143-1 ~mode2~0 := 1; 340#L118-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true; 279#L161 assume !(0 != ~mode3~0 % 256); 281#L186 assume !(~r3~0 < 2); 304#L186-1 ~mode3~0 := 1; 263#L161-2 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; 264#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 289#L424 assume ~st1~0 + ~nl1~0 <= 1; 365#L425 assume ~st2~0 + ~nl2~0 <= 1; 366#L426 assume ~st3~0 + ~nl3~0 <= 1; 358#L427 assume ~r1~0 >= 2; 285#L431 assume ~r1~0 < 2; 318#L436 assume ~r1~0 >= 2; 292#L441 assume ~r1~0 < 2;check_~tmp~1#1 := 1; 293#L423-1 check_#res#1 := check_~tmp~1#1; 302#L471 main_#t~ret32#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret32#1;havoc main_#t~ret32#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; 303#L553 assume !(0 == assert_~arg#1 % 256); 342#L548 assume { :end_inline_assert } true;main_#t~post33#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post33#1;havoc main_#t~post33#1; 308#L523-2 [2022-11-16 11:40:50,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:50,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1727567734, now seen corresponding path program 2 times [2022-11-16 11:40:50,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:50,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521645421] [2022-11-16 11:40:50,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:50,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:50,283 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 11:40:50,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:50,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521645421] [2022-11-16 11:40:50,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521645421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:50,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:50,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:40:50,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216905267] [2022-11-16 11:40:50,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:50,290 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:40:50,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:50,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1234927130, now seen corresponding path program 1 times [2022-11-16 11:40:50,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:50,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291245098] [2022-11-16 11:40:50,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:50,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:50,358 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 11:40:50,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:50,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291245098] [2022-11-16 11:40:50,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291245098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:50,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:50,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:40:50,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170230147] [2022-11-16 11:40:50,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:50,359 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:40:50,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:50,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:40:50,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:40:50,361 INFO L87 Difference]: Start difference. First operand 113 states and 192 transitions. cyclomatic complexity: 80 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 11:40:50,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:40:50,454 INFO L93 Difference]: Finished difference Result 172 states and 284 transitions. [2022-11-16 11:40:50,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 172 states and 284 transitions. [2022-11-16 11:40:50,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2022-11-16 11:40:50,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 172 states to 169 states and 255 transitions. [2022-11-16 11:40:50,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2022-11-16 11:40:50,466 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 169 [2022-11-16 11:40:50,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 255 transitions. [2022-11-16 11:40:50,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:50,472 INFO L218 hiAutomatonCegarLoop]: Abstraction has 169 states and 255 transitions. [2022-11-16 11:40:50,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 255 transitions. [2022-11-16 11:40:50,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 113. [2022-11-16 11:40:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 113 states have (on average 1.4601769911504425) internal successors, (165), 112 states have internal predecessors, (165), 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 11:40:50,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2022-11-16 11:40:50,483 INFO L240 hiAutomatonCegarLoop]: Abstraction has 113 states and 165 transitions. [2022-11-16 11:40:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:40:50,485 INFO L428 stractBuchiCegarLoop]: Abstraction has 113 states and 165 transitions. [2022-11-16 11:40:50,485 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 11:40:50,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states and 165 transitions. [2022-11-16 11:40:50,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2022-11-16 11:40:50,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:40:50,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:40:50,491 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] [2022-11-16 11:40:50,491 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 11:40:50,497 INFO L748 eck$LassoCheckResult]: Stem: 667#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~r2~0 := 0;~r3~0 := 0;~ep23~0 := 0;~mode3~0 := 0;~ep21~0 := 0;~p32~0 := 0;~p31~0 := 0;~p31_new~0 := 0;~p12~0 := 0;~p13~0 := 0;~p23_new~0 := 0;~p31_old~0 := 0;~p32_old~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~p23_old~0 := 0;~p32_new~0 := 0;~p13_new~0 := 0;~nomsg~0 := -1;~ep13~0 := 0;~ep12~0 := 0;~m1~0 := 0;~ep32~0 := 0;~m2~0 := 0;~ep31~0 := 0;~m3~0 := 0;~p13_old~0 := 0;~p21~0 := 0;~p23~0 := 0;~st2~0 := 0;~st1~0 := 0;~nl1~0 := 0;~st3~0 := 0;~nl3~0 := 0;~nl2~0 := 0;~p12_new~0 := 0;~id2~0 := 0;~id1~0 := 0;~id3~0 := 0;~p21_new~0 := 0;~p21_old~0 := 0;~max3~0 := 0;~p12_old~0 := 0;~max2~0 := 0;~max1~0 := 0;~r1~0 := 0; 618#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~ret31#1, main_#t~ret32#1, main_#t~post33#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;~id2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~r2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~st2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~nl2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~m2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~max2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id3~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~r3~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~nl3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~m3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~max3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~mode3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#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; 619#L228 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 622#L231-1 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 605#L241 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 565#L244-1 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 602#L254 assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 611#L257-1 init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 598#L267 assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 569#L270-1 init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 579#L280 assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 642#L283-1 init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 648#L293 assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 613#L296-1 init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 647#L306 assume ~id1~0 != ~id2~0; 650#L307 assume ~id1~0 != ~id3~0; 574#L308 assume ~id2~0 != ~id3~0; 575#L309 assume ~id1~0 >= 0; 649#L310 assume ~id2~0 >= 0; 628#L311 assume ~id3~0 >= 0; 629#L312 assume 0 == ~r1~0; 596#L313 assume 0 == ~r2~0; 597#L314 assume 0 == ~r3~0; 620#L315 assume 0 != init_~r122~0#1 % 256; 621#L316 assume 0 != init_~r132~0#1 % 256; 558#L317 assume 0 != init_~r212~0#1 % 256; 559#L318 assume 0 != init_~r232~0#1 % 256; 668#L319 assume 0 != init_~r312~0#1 % 256; 653#L320 assume 0 != init_~r322~0#1 % 256; 644#L321 assume ~max1~0 == ~id1~0; 645#L322 assume ~max2~0 == ~id2~0; 556#L323 assume ~max3~0 == ~id3~0; 557#L324 assume 0 == ~st1~0; 582#L325 assume 0 == ~st2~0; 604#L326 assume 0 == ~st3~0; 587#L327 assume 0 == ~nl1~0; 588#L328 assume 0 == ~nl2~0; 614#L329 assume 0 == ~nl3~0; 615#L330 assume 0 == ~mode1~0 % 256; 572#L331 assume 0 == ~mode2~0 % 256; 573#L332 assume 0 == ~mode3~0 % 256;init_~tmp___5~0#1 := 1; 603#L306-1 init_#res#1 := init_~tmp___5~0#1; 665#L415 main_#t~ret31#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 626#L509 assume !(0 == main_~i2~0#1); 627#L509-2 ~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; 608#L523-2 [2022-11-16 11:40:50,498 INFO L750 eck$LassoCheckResult]: Loop: 608#L523-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true; 609#L75 assume !(0 != ~mode1~0 % 256); 636#L100 assume !(~r1~0 < 2); 638#L100-1 ~mode1~0 := 1; 595#L75-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true; 657#L118 assume !(0 != ~mode2~0 % 256); 658#L143 assume !(~r2~0 < 2); 646#L143-1 ~mode2~0 := 1; 635#L118-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true; 576#L161 assume !(0 != ~mode3~0 % 256); 578#L186 assume !(~r3~0 < 2); 601#L186-1 ~mode3~0 := 1; 560#L161-2 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; 561#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 586#L424 assume ~st1~0 + ~nl1~0 <= 1; 663#L425 assume ~st2~0 + ~nl2~0 <= 1; 664#L426 assume ~st3~0 + ~nl3~0 <= 1; 656#L427 assume ~r1~0 >= 2; 581#L431 assume ~r1~0 < 2; 616#L436 assume ~r1~0 >= 2; 589#L441 assume ~r1~0 < 2;check_~tmp~1#1 := 1; 590#L423-1 check_#res#1 := check_~tmp~1#1; 599#L471 main_#t~ret32#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret32#1;havoc main_#t~ret32#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; 600#L553 assume !(0 == assert_~arg#1 % 256); 640#L548 assume { :end_inline_assert } true;main_#t~post33#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post33#1;havoc main_#t~post33#1; 608#L523-2 [2022-11-16 11:40:50,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:50,503 INFO L85 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 1 times [2022-11-16 11:40:50,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:50,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76672710] [2022-11-16 11:40:50,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:50,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:40:50,546 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:40:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:40:50,635 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:40:50,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:50,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1234927130, now seen corresponding path program 2 times [2022-11-16 11:40:50,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:50,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471080174] [2022-11-16 11:40:50,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:50,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:50,673 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 11:40:50,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:50,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471080174] [2022-11-16 11:40:50,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471080174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:50,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:50,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:40:50,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779431412] [2022-11-16 11:40:50,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:50,678 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:40:50,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:50,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:40:50,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:40:50,680 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. cyclomatic complexity: 53 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 11:40:50,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:40:50,723 INFO L93 Difference]: Finished difference Result 156 states and 229 transitions. [2022-11-16 11:40:50,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 156 states and 229 transitions. [2022-11-16 11:40:50,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 99 [2022-11-16 11:40:50,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 156 states to 156 states and 229 transitions. [2022-11-16 11:40:50,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 156 [2022-11-16 11:40:50,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 156 [2022-11-16 11:40:50,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 229 transitions. [2022-11-16 11:40:50,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:50,730 INFO L218 hiAutomatonCegarLoop]: Abstraction has 156 states and 229 transitions. [2022-11-16 11:40:50,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 229 transitions. [2022-11-16 11:40:50,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-11-16 11:40:50,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 156 states have (on average 1.4679487179487178) internal successors, (229), 155 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 11:40:50,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 229 transitions. [2022-11-16 11:40:50,751 INFO L240 hiAutomatonCegarLoop]: Abstraction has 156 states and 229 transitions. [2022-11-16 11:40:50,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:40:50,752 INFO L428 stractBuchiCegarLoop]: Abstraction has 156 states and 229 transitions. [2022-11-16 11:40:50,753 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 11:40:50,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 156 states and 229 transitions. [2022-11-16 11:40:50,754 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 99 [2022-11-16 11:40:50,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:40:50,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:40:50,757 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] [2022-11-16 11:40:50,759 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 11:40:50,759 INFO L748 eck$LassoCheckResult]: Stem: 946#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(39, 2);call #Ultimate.allocInit(12, 3);~r2~0 := 0;~r3~0 := 0;~ep23~0 := 0;~mode3~0 := 0;~ep21~0 := 0;~p32~0 := 0;~p31~0 := 0;~p31_new~0 := 0;~p12~0 := 0;~p13~0 := 0;~p23_new~0 := 0;~p31_old~0 := 0;~p32_old~0 := 0;~mode2~0 := 0;~mode1~0 := 0;~p23_old~0 := 0;~p32_new~0 := 0;~p13_new~0 := 0;~nomsg~0 := -1;~ep13~0 := 0;~ep12~0 := 0;~m1~0 := 0;~ep32~0 := 0;~m2~0 := 0;~ep31~0 := 0;~m3~0 := 0;~p13_old~0 := 0;~p21~0 := 0;~p23~0 := 0;~st2~0 := 0;~st1~0 := 0;~nl1~0 := 0;~st3~0 := 0;~nl3~0 := 0;~nl2~0 := 0;~p12_new~0 := 0;~id2~0 := 0;~id1~0 := 0;~id3~0 := 0;~p21_new~0 := 0;~p21_old~0 := 0;~max3~0 := 0;~p12_old~0 := 0;~max2~0 := 0;~max1~0 := 0;~r1~0 := 0; 892#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~ret31#1, main_#t~ret32#1, main_#t~post33#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;~id2~0 := main_#t~nondet17#1;havoc main_#t~nondet17#1;~r2~0 := main_#t~nondet18#1;havoc main_#t~nondet18#1;~st2~0 := main_#t~nondet19#1;havoc main_#t~nondet19#1;~nl2~0 := main_#t~nondet20#1;havoc main_#t~nondet20#1;~m2~0 := main_#t~nondet21#1;havoc main_#t~nondet21#1;~max2~0 := main_#t~nondet22#1;havoc main_#t~nondet22#1;~mode2~0 := main_#t~nondet23#1;havoc main_#t~nondet23#1;~id3~0 := main_#t~nondet24#1;havoc main_#t~nondet24#1;~r3~0 := main_#t~nondet25#1;havoc main_#t~nondet25#1;~st3~0 := main_#t~nondet26#1;havoc main_#t~nondet26#1;~nl3~0 := main_#t~nondet27#1;havoc main_#t~nondet27#1;~m3~0 := main_#t~nondet28#1;havoc main_#t~nondet28#1;~max3~0 := main_#t~nondet29#1;havoc main_#t~nondet29#1;~mode3~0 := main_#t~nondet30#1;havoc main_#t~nondet30#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; 893#L228 assume 0 != init_~r121~0#1 % 256;init_~tmp~0#1 := 1; 896#L231-1 init_~r122~0#1 := (if 0 == init_~tmp~0#1 then 0 else 1); 879#L241 assume 0 != init_~r131~0#1 % 256;init_~tmp___0~0#1 := 1; 840#L244-1 init_~r132~0#1 := (if 0 == init_~tmp___0~0#1 then 0 else 1); 876#L254 assume 0 != init_~r211~0#1 % 256;init_~tmp___1~0#1 := 1; 885#L257-1 init_~r212~0#1 := (if 0 == init_~tmp___1~0#1 then 0 else 1); 872#L267 assume 0 != init_~r231~0#1 % 256;init_~tmp___2~0#1 := 1; 844#L270-1 init_~r232~0#1 := (if 0 == init_~tmp___2~0#1 then 0 else 1); 854#L280 assume 0 != init_~r311~0#1 % 256;init_~tmp___3~0#1 := 1; 915#L283-1 init_~r312~0#1 := (if 0 == init_~tmp___3~0#1 then 0 else 1); 921#L293 assume 0 != init_~r321~0#1 % 256;init_~tmp___4~0#1 := 1; 887#L296-1 init_~r322~0#1 := (if 0 == init_~tmp___4~0#1 then 0 else 1); 920#L306 assume ~id1~0 != ~id2~0; 924#L307 assume ~id1~0 != ~id3~0; 849#L308 assume ~id2~0 != ~id3~0; 850#L309 assume ~id1~0 >= 0; 922#L310 assume ~id2~0 >= 0; 902#L311 assume ~id3~0 >= 0; 903#L312 assume 0 == ~r1~0; 870#L313 assume 0 == ~r2~0; 871#L314 assume 0 == ~r3~0; 894#L315 assume 0 != init_~r122~0#1 % 256; 895#L316 assume 0 != init_~r132~0#1 % 256; 833#L317 assume 0 != init_~r212~0#1 % 256; 834#L318 assume 0 != init_~r232~0#1 % 256; 948#L319 assume 0 != init_~r312~0#1 % 256; 928#L320 assume 0 != init_~r322~0#1 % 256; 917#L321 assume ~max1~0 == ~id1~0; 918#L322 assume ~max2~0 == ~id2~0; 831#L323 assume ~max3~0 == ~id3~0; 832#L324 assume 0 == ~st1~0; 857#L325 assume 0 == ~st2~0; 878#L326 assume 0 == ~st3~0; 862#L327 assume 0 == ~nl1~0; 863#L328 assume 0 == ~nl2~0; 888#L329 assume 0 == ~nl3~0; 889#L330 assume 0 == ~mode1~0 % 256; 847#L331 assume 0 == ~mode2~0 % 256; 848#L332 assume 0 == ~mode3~0 % 256;init_~tmp___5~0#1 := 1; 877#L306-1 init_#res#1 := init_~tmp___5~0#1; 944#L415 main_#t~ret31#1 := init_#res#1;assume { :end_inline_init } true;main_~i2~0#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 897#L509 assume !(0 == main_~i2~0#1); 898#L509-2 ~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; 927#L523-2 [2022-11-16 11:40:50,759 INFO L750 eck$LassoCheckResult]: Loop: 927#L523-2 assume !!(main_~i2~0#1 < 6);assume { :begin_inline_node1 } true; 950#L75 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256); 912#L77 assume !(0 != ~ep21~0 % 256); 846#L77-1 assume !(0 != ~ep31~0 % 256); 908#L84 assume !(1 == ~r1~0); 868#L91 ~mode1~0 := 0; 869#L75-2 assume { :end_inline_node1 } true;assume { :begin_inline_node2 } true; 984#L118 assume !(0 != ~mode2~0 % 256); 980#L143 assume !(~r2~0 < 2); 975#L143-1 ~mode2~0 := 1; 974#L118-2 assume { :end_inline_node2 } true;assume { :begin_inline_node3 } true; 971#L161 assume !(0 != ~mode3~0 % 256); 967#L186 assume !(~r3~0 < 2); 962#L186-1 ~mode3~0 := 1; 961#L161-2 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; 960#L423 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 959#L424 assume ~st1~0 + ~nl1~0 <= 1; 958#L425 assume ~st2~0 + ~nl2~0 <= 1; 957#L426 assume ~st3~0 + ~nl3~0 <= 1; 956#L427 assume !(~r1~0 >= 2); 855#L430 assume 0 == ~st1~0 + ~st2~0 + ~st3~0; 856#L431 assume ~r1~0 < 2; 955#L436 assume !(~r1~0 >= 2); 938#L440 assume 0 == ~nl1~0 + ~nl2~0 + ~nl3~0; 939#L441 assume ~r1~0 < 2;check_~tmp~1#1 := 1; 954#L423-1 check_#res#1 := check_~tmp~1#1; 953#L471 main_#t~ret32#1 := check_#res#1;assume { :end_inline_check } true;main_~c1~0#1 := main_#t~ret32#1;havoc main_#t~ret32#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; 952#L553 assume !(0 == assert_~arg#1 % 256); 951#L548 assume { :end_inline_assert } true;main_#t~post33#1 := main_~i2~0#1;main_~i2~0#1 := 1 + main_#t~post33#1;havoc main_#t~post33#1; 927#L523-2 [2022-11-16 11:40:50,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:50,761 INFO L85 PathProgramCache]: Analyzing trace with hash -97176065, now seen corresponding path program 2 times [2022-11-16 11:40:50,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:50,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351303048] [2022-11-16 11:40:50,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:50,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:40:50,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:40:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:40:50,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:40:50,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:50,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1448004459, now seen corresponding path program 1 times [2022-11-16 11:40:50,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:50,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817096863] [2022-11-16 11:40:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:50,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:40:50,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:40:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:40:50,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:40:50,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:50,878 INFO L85 PathProgramCache]: Analyzing trace with hash -495556777, now seen corresponding path program 1 times [2022-11-16 11:40:50,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:50,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435418844] [2022-11-16 11:40:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:50,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:50,968 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 11:40:50,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:50,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435418844] [2022-11-16 11:40:50,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435418844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:50,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:50,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:40:50,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890396853] [2022-11-16 11:40:50,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:51,797 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:40:51,798 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:40:51,798 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:40:51,798 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:40:51,798 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:40:51,799 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:51,799 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:40:51,799 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:40:51,799 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2022-11-16 11:40:51,799 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:40:51,799 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:40:51,822 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 11:40:51,834 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 11:40:51,840 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 11:40:51,842 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 11:40:51,845 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 11:40:51,859 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 11:40:51,862 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 11:40:51,868 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 11:40:51,891 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 11:40:51,895 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 11:40:51,900 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 11:40:51,908 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 11:40:51,911 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:40:51,936 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 11:40:51,938 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 11:40:52,507 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:40:52,507 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:40:52,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:52,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:52,518 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:52,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:40:52,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:40:52,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:40:52,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:52,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:52,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:52,568 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:52,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:40:52,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:40:52,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:40:52,711 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:40:52,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:52,715 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:40:52,716 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:40:52,716 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:40:52,716 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:40:52,716 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:40:52,716 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:52,716 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:40:52,716 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:40:52,716 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_floodmax.3.2.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2022-11-16 11:40:52,716 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:40:52,717 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:40:52,720 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 11:40:52,731 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 11:40:52,734 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 11:40:52,741 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 11:40:52,744 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 11:40:52,755 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 11:40:52,759 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 11:40:52,789 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 11:40:52,795 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 11:40:52,811 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 11:40:52,814 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 11:40:52,820 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 11:40:52,827 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 11:40:52,836 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 11:40:52,839 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 11:40:53,386 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:40:53,391 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:40:53,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:53,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:53,395 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:53,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:40:53,403 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 11:40:53,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:40:53,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:40:53,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:40:53,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:40:53,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:40:53,416 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:40:53,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:40:53,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:40:53,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:53,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:53,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:53,424 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:53,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:40:53,435 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 11:40:53,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:40:53,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:40:53,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:40:53,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:40:53,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:40:53,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:40:53,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:40:53,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:40:53,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-16 11:40:53,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:53,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:53,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:53,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:40:53,455 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 11:40:53,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:40:53,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:40:53,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:40:53,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:40:53,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:40:53,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:40:53,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:40:53,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:40:53,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:53,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:53,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:53,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:53,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:40:53,488 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 11:40:53,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:40:53,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:40:53,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:40:53,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:40:53,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:40:53,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:40:53,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:40:53,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:40:53,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:53,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:53,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:53,508 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:53,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:40:53,511 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 11:40:53,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:40:53,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:40:53,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:40:53,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:40:53,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:40:53,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:40:53,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:40:53,531 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:40:53,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-16 11:40:53,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:53,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:53,536 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:53,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:40:53,539 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 11:40:53,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:40:53,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:40:53,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:40:53,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:40:53,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:40:53,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:40:53,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:40:53,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:40:53,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-16 11:40:53,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:53,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:53,556 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:53,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:40:53,559 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 11:40:53,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:40:53,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:40:53,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:40:53,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:40:53,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:40:53,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:40:53,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:40:53,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:40:53,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:53,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:53,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:53,612 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:53,624 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 11:40:53,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:40:53,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:40:53,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:40:53,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:40:53,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:40:53,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:40:53,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:40:53,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 11:40:53,658 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:40:53,663 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:40:53,663 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:40:53,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:40:53,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:53,666 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:40:53,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 11:40:53,684 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:40:53,684 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:40:53,684 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:40:53,685 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 11:40:53,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:53,712 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:40:53,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:53,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:53,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:40:53,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:40:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:53,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:40:53,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:40:54,140 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 11:40:54,145 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 11:40:54,146 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 156 states and 229 transitions. cyclomatic complexity: 74 Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 11:40:54,205 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 156 states and 229 transitions. cyclomatic complexity: 74. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 254 states and 383 transitions. Complement of second has 4 states. [2022-11-16 11:40:54,206 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 11:40:54,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 11:40:54,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2022-11-16 11:40:54,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 165 transitions. Stem has 45 letters. Loop has 29 letters. [2022-11-16 11:40:54,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:40:54,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 165 transitions. Stem has 74 letters. Loop has 29 letters. [2022-11-16 11:40:54,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:40:54,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 165 transitions. Stem has 45 letters. Loop has 58 letters. [2022-11-16 11:40:54,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:40:54,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 254 states and 383 transitions. [2022-11-16 11:40:54,219 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:40:54,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 254 states to 0 states and 0 transitions. [2022-11-16 11:40:54,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:40:54,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:40:54,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:40:54,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:54,220 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:40:54,220 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:40:54,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:54,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:40:54,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:40:54,221 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 11:40:54,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:40:54,222 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-16 11:40:54,222 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-16 11:40:54,222 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:40:54,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:40:54,222 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:40:54,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:40:54,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:40:54,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:54,223 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:40:54,223 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:40:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:40:54,226 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:40:54,226 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-16 11:40:54,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:40:54,226 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:40:54,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 11:40:54,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:40:54 BoogieIcfgContainer [2022-11-16 11:40:54,237 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:40:54,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:40:54,238 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:40:54,238 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:40:54,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:40:49" (3/4) ... [2022-11-16 11:40:54,242 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:40:54,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:40:54,243 INFO L158 Benchmark]: Toolchain (without parser) took 6482.59ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 87.9MB in the beginning and 108.4MB in the end (delta: -20.5MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-11-16 11:40:54,243 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory was 105.1MB in the beginning and 105.1MB in the end (delta: 72.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:40:54,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.67ms. Allocated memory is still 136.3MB. Free memory was 87.7MB in the beginning and 103.5MB in the end (delta: -15.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:40:54,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.27ms. Allocated memory is still 136.3MB. Free memory was 103.5MB in the beginning and 100.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:40:54,252 INFO L158 Benchmark]: Boogie Preprocessor took 34.92ms. Allocated memory is still 136.3MB. Free memory was 100.3MB in the beginning and 98.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:40:54,255 INFO L158 Benchmark]: RCFGBuilder took 755.34ms. Allocated memory is still 136.3MB. Free memory was 98.3MB in the beginning and 70.1MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-16 11:40:54,255 INFO L158 Benchmark]: BuchiAutomizer took 5118.83ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 70.1MB in the beginning and 108.4MB in the end (delta: -38.3MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2022-11-16 11:40:54,255 INFO L158 Benchmark]: Witness Printer took 3.79ms. Allocated memory is still 174.1MB. Free memory is still 108.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:40:54,257 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 136.3MB. Free memory was 105.1MB in the beginning and 105.1MB in the end (delta: 72.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.67ms. Allocated memory is still 136.3MB. Free memory was 87.7MB in the beginning and 103.5MB in the end (delta: -15.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.27ms. Allocated memory is still 136.3MB. Free memory was 103.5MB in the beginning and 100.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.92ms. Allocated memory is still 136.3MB. Free memory was 100.3MB in the beginning and 98.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 755.34ms. Allocated memory is still 136.3MB. Free memory was 98.3MB in the beginning and 70.1MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5118.83ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 70.1MB in the beginning and 108.4MB in the end (delta: -38.3MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 3.79ms. Allocated memory is still 174.1MB. Free memory is still 108.4MB. 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 5.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.0s. 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, 56 StatesRemovedByMinimization, 1 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, 310 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 309 mSDsluCounter, 2079 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1363 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 716 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital164 mio100 ax100 hnf100 lsp25 ukn100 mio100 lsp100 div164 bol100 ite100 ukn100 eq155 hnf98 smp70 dnf108 smp92 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 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 11:40:54,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38db5b06-a9b5-43a0-af36-e5b9cdf9bd6b/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