./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum04-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum04-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8 --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 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 --- 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-2329fc7 [2022-12-13 21:53:45,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:53:45,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:53:45,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:53:45,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:53:45,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:53:45,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:53:45,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:53:45,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:53:45,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:53:45,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:53:45,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:53:45,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:53:45,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:53:45,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:53:45,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:53:45,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:53:45,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:53:45,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:53:45,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:53:45,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:53:45,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:53:45,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:53:45,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:53:45,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:53:45,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:53:45,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:53:45,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:53:45,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:53:45,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:53:45,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:53:45,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:53:45,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:53:45,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:53:45,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:53:45,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:53:45,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:53:45,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:53:45,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:53:45,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:53:45,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:53:45,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 21:53:45,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:53:45,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:53:45,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:53:45,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:53:45,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:53:45,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:53:45,190 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:53:45,190 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 21:53:45,190 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 21:53:45,190 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 21:53:45,190 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 21:53:45,191 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 21:53:45,191 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 21:53:45,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:53:45,191 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:53:45,191 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:53:45,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:53:45,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:53:45,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:53:45,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 21:53:45,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 21:53:45,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 21:53:45,193 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:53:45,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:53:45,193 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 21:53:45,193 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:53:45,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 21:53:45,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:53:45,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:53:45,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:53:45,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:53:45,195 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 21:53:45,195 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_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 [2022-12-13 21:53:45,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:53:45,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:53:45,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:53:45,406 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:53:45,407 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:53:45,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loops/sum04-1.i [2022-12-13 21:53:47,977 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:53:48,119 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:53:48,120 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/sv-benchmarks/c/loops/sum04-1.i [2022-12-13 21:53:48,124 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/data/5454a0533/4c189d96c84148e88f6d6945edee451c/FLAGc877d5058 [2022-12-13 21:53:48,135 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/data/5454a0533/4c189d96c84148e88f6d6945edee451c [2022-12-13 21:53:48,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:53:48,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:53:48,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:53:48,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:53:48,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:53:48,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f064bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48, skipping insertion in model container [2022-12-13 21:53:48,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:53:48,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:53:48,277 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/sv-benchmarks/c/loops/sum04-1.i[808,821] [2022-12-13 21:53:48,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:53:48,291 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:53:48,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/sv-benchmarks/c/loops/sum04-1.i[808,821] [2022-12-13 21:53:48,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:53:48,312 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:53:48,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48 WrapperNode [2022-12-13 21:53:48,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:53:48,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:53:48,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:53:48,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:53:48,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,341 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2022-12-13 21:53:48,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:53:48,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:53:48,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:53:48,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:53:48,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,358 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:53:48,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:53:48,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:53:48,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:53:48,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (1/1) ... [2022-12-13 21:53:48,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:48,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:48,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:48,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 21:53:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:53:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:53:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:53:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:53:48,484 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:53:48,486 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:53:48,547 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:53:48,551 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:53:48,551 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:53:48,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:53:48 BoogieIcfgContainer [2022-12-13 21:53:48,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:53:48,554 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 21:53:48,554 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 21:53:48,557 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 21:53:48,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:53:48,558 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 09:53:48" (1/3) ... [2022-12-13 21:53:48,558 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a017c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:53:48, skipping insertion in model container [2022-12-13 21:53:48,559 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:53:48,559 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:53:48" (2/3) ... [2022-12-13 21:53:48,559 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a017c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:53:48, skipping insertion in model container [2022-12-13 21:53:48,559 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:53:48,559 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:53:48" (3/3) ... [2022-12-13 21:53:48,560 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum04-1.i [2022-12-13 21:53:48,602 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 21:53:48,602 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 21:53:48,603 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 21:53:48,603 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 21:53:48,603 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 21:53:48,603 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 21:53:48,603 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 21:53:48,603 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 21:53:48,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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) [2022-12-13 21:53:48,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 21:53:48,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:53:48,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:53:48,623 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 21:53:48,624 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 21:53:48,624 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 21:53:48,624 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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) [2022-12-13 21:53:48,625 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 21:53:48,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:53:48,625 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:53:48,626 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 21:53:48,626 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 21:53:48,631 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~i~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 10#L24-3true [2022-12-13 21:53:48,632 INFO L750 eck$LassoCheckResult]: Loop: 10#L24-3true assume !!(main_~i~0#1 <= 8); 6#L25true assume main_~i~0#1 < 4;main_~sn~0#1 := 2 + main_~sn~0#1; 5#L24-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 10#L24-3true [2022-12-13 21:53:48,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:48,637 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 21:53:48,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:48,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493383064] [2022-12-13 21:53:48,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:48,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:53:48,707 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:53:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:53:48,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:53:48,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:48,727 INFO L85 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2022-12-13 21:53:48,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:48,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739824506] [2022-12-13 21:53:48,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:48,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:53:48,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:53:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:53:48,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:53:48,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:48,741 INFO L85 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2022-12-13 21:53:48,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:48,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685002106] [2022-12-13 21:53:48,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:48,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:53:48,751 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:53:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:53:48,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:53:48,824 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:53:48,825 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:53:48,825 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:53:48,825 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:53:48,825 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:53:48,825 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:48,826 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:53:48,826 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:53:48,826 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2022-12-13 21:53:48,826 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:53:48,826 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:53:48,839 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:53:48,850 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:53:48,852 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:53:48,898 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:53:48,899 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:53:48,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:48,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:48,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:48,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 21:53:48,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:53:48,904 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:53:48,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:53:48,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:48,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:48,922 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:48,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 21:53:48,925 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:53:48,925 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:53:48,959 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:53:48,959 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0#1=0} Honda state: {ULTIMATE.start_main_~sn~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0#1=-1}, {ULTIMATE.start_main_~sn~0#1=4}, {ULTIMATE.start_main_~sn~0#1=-1}] Lambdas: [1, 1, 1] Nus: [0, 0] [2022-12-13 21:53:48,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 21:53:48,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:48,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:48,964 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:48,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 21:53:48,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:53:48,967 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:53:48,979 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:53:48,979 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:53:48,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 21:53:48,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:48,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:48,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:48,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 21:53:48,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:53:48,986 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:53:49,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 21:53:49,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:49,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:49,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 21:53:49,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:53:49,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:53:49,025 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:53:49,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-12-13 21:53:49,029 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:53:49,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:53:49,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:53:49,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:53:49,029 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:53:49,029 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,029 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:53:49,029 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:53:49,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2022-12-13 21:53:49,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:53:49,030 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:53:49,032 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:53:49,036 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:53:49,039 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:53:49,067 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:53:49,071 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:53:49,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:49,074 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:49,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 21:53:49,076 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 [2022-12-13 21:53:49,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:53:49,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:53:49,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:53:49,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:53:49,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:53:49,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:53:49,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:53:49,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:53:49,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 21:53:49,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:49,097 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:49,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 21:53:49,099 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 [2022-12-13 21:53:49,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:53:49,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:53:49,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:53:49,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:53:49,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:53:49,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:53:49,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:53:49,113 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:53:49,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 21:53:49,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:49,118 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:49,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 21:53:49,120 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 [2022-12-13 21:53:49,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:53:49,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:53:49,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:53:49,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:53:49,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:53:49,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:53:49,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:53:49,135 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:53:49,139 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:53:49,139 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:53:49,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:49,166 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:49,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 21:53:49,168 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:53:49,168 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:53:49,168 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:53:49,168 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 7 Supporting invariants [] [2022-12-13 21:53:49,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 21:53:49,175 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:53:49,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:49,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:53:49,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:53:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:49,218 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:53:49,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:53:49,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:53:49,268 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 [2022-12-13 21:53:49,270 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-12-13 21:53:49,310 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 35 states and 47 transitions. Complement of second has 7 states. [2022-12-13 21:53:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 21:53:49,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-12-13 21:53:49,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2022-12-13 21:53:49,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 3 letters. [2022-12-13 21:53:49,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:53:49,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2022-12-13 21:53:49,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:53:49,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 6 letters. [2022-12-13 21:53:49,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:53:49,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 47 transitions. [2022-12-13 21:53:49,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 21:53:49,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 15 transitions. [2022-12-13 21:53:49,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-12-13 21:53:49,325 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-12-13 21:53:49,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2022-12-13 21:53:49,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:53:49,325 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-12-13 21:53:49,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2022-12-13 21:53:49,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2022-12-13 21:53:49,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:53:49,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-12-13 21:53:49,346 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-12-13 21:53:49,346 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-12-13 21:53:49,346 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 21:53:49,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2022-12-13 21:53:49,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 21:53:49,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:53:49,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:53:49,347 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 21:53:49,347 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 21:53:49,348 INFO L748 eck$LassoCheckResult]: Stem: 95#$Ultimate##0 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(10, 2); 96#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~i~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 98#L24-3 assume !!(main_~i~0#1 <= 8); 92#L25 [2022-12-13 21:53:49,348 INFO L750 eck$LassoCheckResult]: Loop: 92#L25 assume !(main_~i~0#1 < 4); 88#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 89#L24-3 assume !!(main_~i~0#1 <= 8); 92#L25 [2022-12-13 21:53:49,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:49,349 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2022-12-13 21:53:49,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:49,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097720047] [2022-12-13 21:53:49,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:49,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:53:49,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:53:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:53:49,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:53:49,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:49,362 INFO L85 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2022-12-13 21:53:49,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:49,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027504320] [2022-12-13 21:53:49,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:49,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:53:49,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:53:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:53:49,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:53:49,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:49,370 INFO L85 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2022-12-13 21:53:49,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:53:49,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303473088] [2022-12-13 21:53:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:53:49,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:53:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:49,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:53:49,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:53:49,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303473088] [2022-12-13 21:53:49,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303473088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:53:49,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:53:49,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:53:49,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122556354] [2022-12-13 21:53:49,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:53:49,437 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:53:49,437 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:53:49,437 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:53:49,437 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:53:49,437 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:53:49,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,438 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:53:49,438 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:53:49,438 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2022-12-13 21:53:49,438 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:53:49,438 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:53:49,439 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:53:49,441 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:53:49,461 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:53:49,461 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:53:49,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:49,463 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:49,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 21:53:49,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:53:49,465 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:53:49,476 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:53:49,477 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:53:49,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 21:53:49,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:49,487 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:49,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 21:53:49,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:53:49,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:53:49,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 21:53:49,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:49,505 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:49,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 21:53:49,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:53:49,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:53:49,535 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:53:49,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 21:53:49,538 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:53:49,538 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:53:49,538 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:53:49,538 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:53:49,538 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:53:49,538 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,539 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:53:49,539 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:53:49,539 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2022-12-13 21:53:49,539 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:53:49,539 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:53:49,540 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:53:49,542 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:53:49,561 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:53:49,561 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:53:49,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:49,563 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:49,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 21:53:49,565 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 [2022-12-13 21:53:49,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:53:49,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:53:49,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:53:49,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:53:49,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:53:49,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:53:49,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:53:49,578 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:53:49,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-12-13 21:53:49,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:49,582 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:49,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 21:53:49,584 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 [2022-12-13 21:53:49,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:53:49,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:53:49,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:53:49,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:53:49,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:53:49,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:53:49,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:53:49,598 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:53:49,600 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:53:49,600 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:53:49,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:53:49,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:53:49,602 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:53:49,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 21:53:49,604 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:53:49,604 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:53:49,604 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:53:49,604 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 15 Supporting invariants [] [2022-12-13 21:53:49,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-12-13 21:53:49,608 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:53:49,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:53:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:49,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:53:49,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:53:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:53:49,633 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:53:49,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:53:49,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:53:49,663 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 [2022-12-13 21:53:49,663 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-13 21:53:49,681 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 18 states and 22 transitions. Complement of second has 6 states. [2022-12-13 21:53:49,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 21:53:49,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-13 21:53:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-12-13 21:53:49,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2022-12-13 21:53:49,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:53:49,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2022-12-13 21:53:49,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:53:49,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2022-12-13 21:53:49,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:53:49,683 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2022-12-13 21:53:49,684 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 21:53:49,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2022-12-13 21:53:49,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 21:53:49,684 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 21:53:49,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 21:53:49,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:53:49,684 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:53:49,684 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:53:49,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:53:49,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:53:49,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:53:49,687 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-13 21:53:49,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:53:49,689 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-12-13 21:53:49,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-12-13 21:53:49,689 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 21:53:49,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 21:53:49,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 21:53:49,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 21:53:49,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 21:53:49,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:53:49,689 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:53:49,689 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:53:49,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:53:49,690 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:53:49,690 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 21:53:49,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 21:53:49,690 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 21:53:49,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 21:53:49,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 09:53:49 BoogieIcfgContainer [2022-12-13 21:53:49,696 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 21:53:49,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:53:49,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:53:49,697 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:53:49,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:53:48" (3/4) ... [2022-12-13 21:53:49,699 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:53:49,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:53:49,699 INFO L158 Benchmark]: Toolchain (without parser) took 1560.00ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 86.8MB in the beginning and 87.7MB in the end (delta: -915.7kB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2022-12-13 21:53:49,700 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:53:49,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.15ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 76.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:53:49,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.27ms. Allocated memory is still 125.8MB. Free memory was 76.3MB in the beginning and 75.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:53:49,701 INFO L158 Benchmark]: Boogie Preprocessor took 18.23ms. Allocated memory is still 125.8MB. Free memory was 75.2MB in the beginning and 74.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:53:49,701 INFO L158 Benchmark]: RCFGBuilder took 192.01ms. Allocated memory is still 125.8MB. Free memory was 74.2MB in the beginning and 65.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 21:53:49,702 INFO L158 Benchmark]: BuchiAutomizer took 1142.15ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 64.8MB in the beginning and 87.7MB in the end (delta: -22.9MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-12-13 21:53:49,702 INFO L158 Benchmark]: Witness Printer took 2.49ms. Allocated memory is still 172.0MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:53:49,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.15ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 76.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.27ms. Allocated memory is still 125.8MB. Free memory was 76.3MB in the beginning and 75.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.23ms. Allocated memory is still 125.8MB. Free memory was 75.2MB in the beginning and 74.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 192.01ms. Allocated memory is still 125.8MB. Free memory was 74.2MB in the beginning and 65.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1142.15ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 64.8MB in the beginning and 87.7MB in the end (delta: -22.9MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Witness Printer took 2.49ms. Allocated memory is still 172.0MB. Free memory is still 87.7MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 7 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 15 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 11 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp83 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf94 smp100 dnf100 smp100 tf111 neg97 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 21:53:49,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 21:53:49,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 21:53:50,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43d5db0-3769-41cd-8d6a-b6bd687a4c35/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE