./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/java_Continue1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/java_Continue1-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 337340cdf38da99928295b0c576766fb8f09c8634f9763511165b0f7240edd89 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 09:04:37,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:04:37,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:04:37,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:04:37,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:04:37,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:04:37,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:04:37,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:04:37,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:04:37,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:04:37,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:04:37,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:04:37,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:04:37,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:04:37,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:04:37,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:04:37,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:04:37,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:04:37,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:04:37,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:04:37,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:04:37,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:04:37,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:04:37,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:04:37,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:04:37,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:04:37,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:04:37,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:04:37,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:04:37,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:04:37,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:04:37,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:04:37,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:04:37,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:04:37,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:04:37,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:04:37,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:04:37,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:04:37,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:04:37,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:04:37,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:04:37,220 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 09:04:37,269 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:04:37,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:04:37,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:04:37,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:04:37,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:04:37,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:04:37,273 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:04:37,274 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 09:04:37,274 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 09:04:37,275 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 09:04:37,276 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 09:04:37,276 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 09:04:37,277 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 09:04:37,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:04:37,277 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:04:37,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:04:37,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:04:37,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 09:04:37,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 09:04:37,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 09:04:37,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:04:37,280 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 09:04:37,280 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:04:37,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 09:04:37,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:04:37,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:04:37,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:04:37,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:04:37,284 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 09:04:37,285 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_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 337340cdf38da99928295b0c576766fb8f09c8634f9763511165b0f7240edd89 [2022-11-21 09:04:37,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:04:37,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:04:37,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:04:37,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:04:37,664 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:04:37,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-memory-alloca/java_Continue1-alloca.i [2022-11-21 09:04:41,041 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:04:41,518 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:04:41,519 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/sv-benchmarks/c/termination-memory-alloca/java_Continue1-alloca.i [2022-11-21 09:04:41,532 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/data/ade0a80d4/d9dc33b5344648629248780800873cfb/FLAGae8d973b5 [2022-11-21 09:04:41,550 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/data/ade0a80d4/d9dc33b5344648629248780800873cfb [2022-11-21 09:04:41,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:04:41,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:04:41,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:04:41,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:04:41,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:04:41,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:41" (1/1) ... [2022-11-21 09:04:41,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67245e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:41, skipping insertion in model container [2022-11-21 09:04:41,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:41" (1/1) ... [2022-11-21 09:04:41,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:04:41,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:04:41,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:04:41,957 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:04:42,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:04:42,092 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:04:42,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42 WrapperNode [2022-11-21 09:04:42,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:04:42,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:04:42,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:04:42,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:04:42,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (1/1) ... [2022-11-21 09:04:42,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (1/1) ... [2022-11-21 09:04:42,141 INFO L138 Inliner]: procedures = 109, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2022-11-21 09:04:42,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:04:42,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:04:42,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:04:42,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:04:42,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (1/1) ... [2022-11-21 09:04:42,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (1/1) ... [2022-11-21 09:04:42,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (1/1) ... [2022-11-21 09:04:42,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (1/1) ... [2022-11-21 09:04:42,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (1/1) ... [2022-11-21 09:04:42,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (1/1) ... [2022-11-21 09:04:42,164 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (1/1) ... [2022-11-21 09:04:42,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (1/1) ... [2022-11-21 09:04:42,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:04:42,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:04:42,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:04:42,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:04:42,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (1/1) ... [2022-11-21 09:04:42,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:42,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:42,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:42,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 09:04:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:04:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:04:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:04:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:04:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:04:42,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:04:42,420 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:04:42,428 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:04:42,641 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:04:42,651 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:04:42,651 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 09:04:42,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:42 BoogieIcfgContainer [2022-11-21 09:04:42,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:04:42,655 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 09:04:42,656 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 09:04:42,661 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 09:04:42,662 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:04:42,662 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 09:04:41" (1/3) ... [2022-11-21 09:04:42,664 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35d3db62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:04:42, skipping insertion in model container [2022-11-21 09:04:42,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:04:42,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:42" (2/3) ... [2022-11-21 09:04:42,665 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35d3db62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:04:42, skipping insertion in model container [2022-11-21 09:04:42,665 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:04:42,665 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:42" (3/3) ... [2022-11-21 09:04:42,667 INFO L332 chiAutomizerObserver]: Analyzing ICFG java_Continue1-alloca.i [2022-11-21 09:04:42,728 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 09:04:42,728 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 09:04:42,729 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 09:04:42,729 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 09:04:42,729 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 09:04:42,729 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 09:04:42,729 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 09:04:42,729 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 09:04:42,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:42,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 09:04:42,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:04:42,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:04:42,757 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 09:04:42,758 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 09:04:42,758 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 09:04:42,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:42,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 09:04:42,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:04:42,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:04:42,760 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 09:04:42,761 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 09:04:42,768 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4); 4#L552-3true [2022-11-21 09:04:42,769 INFO L750 eck$LassoCheckResult]: Loop: 4#L552-3true goto; 7#L554-1true call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 9#L552-1true assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 10#L554true assume !(main_#t~mem7#1 <= 10);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int(1 + main_#t~post9#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 4#L552-3true [2022-11-21 09:04:42,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:42,775 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-21 09:04:42,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:42,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533383915] [2022-11-21 09:04:42,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:42,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:42,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:42,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:42,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:42,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1109383, now seen corresponding path program 1 times [2022-11-21 09:04:42,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:42,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603450597] [2022-11-21 09:04:42,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:42,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:43,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:43,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:43,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:43,024 INFO L85 PathProgramCache]: Analyzing trace with hash 889536585, now seen corresponding path program 1 times [2022-11-21 09:04:43,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:43,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132904036] [2022-11-21 09:04:43,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:43,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:43,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:43,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:43,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132904036] [2022-11-21 09:04:43,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132904036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:43,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:43,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:04:43,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210394127] [2022-11-21 09:04:43,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:44,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:44,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:04:44,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:04:44,192 INFO L87 Difference]: Start difference. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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) [2022-11-21 09:04:44,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:04:44,231 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-11-21 09:04:44,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2022-11-21 09:04:44,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 09:04:44,238 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 11 transitions. [2022-11-21 09:04:44,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-21 09:04:44,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-21 09:04:44,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 11 transitions. [2022-11-21 09:04:44,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:44,242 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-11-21 09:04:44,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 11 transitions. [2022-11-21 09:04:44,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-21 09:04:44,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:44,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-11-21 09:04:44,273 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-11-21 09:04:44,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:04:44,279 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-11-21 09:04:44,279 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 09:04:44,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2022-11-21 09:04:44,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 09:04:44,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:04:44,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:04:44,281 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-21 09:04:44,281 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 09:04:44,282 INFO L748 eck$LassoCheckResult]: Stem: 39#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 40#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4); 37#L552-3 goto; 38#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 41#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 42#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 43#L554-1 [2022-11-21 09:04:44,282 INFO L750 eck$LassoCheckResult]: Loop: 43#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 46#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 44#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 43#L554-1 [2022-11-21 09:04:44,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:44,283 INFO L85 PathProgramCache]: Analyzing trace with hash 889536583, now seen corresponding path program 1 times [2022-11-21 09:04:44,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:44,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321590199] [2022-11-21 09:04:44,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:44,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:44,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:44,315 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:44,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:44,316 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2022-11-21 09:04:44,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:44,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160224292] [2022-11-21 09:04:44,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:44,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:44,325 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:44,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:44,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:44,333 INFO L85 PathProgramCache]: Analyzing trace with hash 236134947, now seen corresponding path program 2 times [2022-11-21 09:04:44,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:44,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072566881] [2022-11-21 09:04:44,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:44,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:44,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:44,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:45,081 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 09:04:45,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 09:04:45,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 09:04:45,082 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 09:04:45,083 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 09:04:45,083 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:45,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 09:04:45,083 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 09:04:45,083 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Continue1-alloca.i_Iteration2_Lasso [2022-11-21 09:04:45,084 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 09:04:45,085 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 09:04:45,111 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,124 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,128 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,497 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,502 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,507 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,511 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,516 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,521 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,525 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,530 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,534 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,538 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,543 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,547 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,551 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:04:45,987 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 09:04:45,992 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 09:04:45,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:45,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:45,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:46,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:04:46,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 09:04:46,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:04:46,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:04:46,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:04:46,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:04:46,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:04:46,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:04:46,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:04:46,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:04:46,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-21 09:04:46,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:46,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:46,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:46,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:04:46,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 09:04:46,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:04:46,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:04:46,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:04:46,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:04:46,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:04:46,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:04:46,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:04:46,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:04:46,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 09:04:46,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:46,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:46,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:46,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:04:46,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 09:04:46,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:04:46,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:04:46,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:04:46,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:04:46,156 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:04:46,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:04:46,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:04:46,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 09:04:46,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:46,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:46,181 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:46,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:04:46,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:04:46,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:04:46,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:04:46,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:04:46,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-21 09:04:46,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:04:46,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:04:46,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:04:46,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-21 09:04:46,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:46,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:46,242 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:46,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-21 09:04:46,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:04:46,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:04:46,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:04:46,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:04:46,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:04:46,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:04:46,281 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:04:46,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:04:46,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-21 09:04:46,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:46,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:46,321 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:46,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-21 09:04:46,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:04:46,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:04:46,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:04:46,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:04:46,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:04:46,344 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:04:46,344 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:04:46,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:04:46,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-11-21 09:04:46,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:46,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:46,372 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:46,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:04:46,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-21 09:04:46,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:04:46,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:04:46,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:04:46,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:04:46,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:04:46,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:04:46,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:04:46,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-21 09:04:46,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:46,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:46,436 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:46,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-21 09:04:46,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:04:46,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:04:46,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:04:46,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:04:46,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:04:46,463 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:04:46,464 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:04:46,476 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 09:04:46,493 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-21 09:04:46,494 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-11-21 09:04:46,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:46,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:46,547 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:46,599 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 09:04:46,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-21 09:04:46,633 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-21 09:04:46,633 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 09:04:46,634 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1 + 19 Supporting invariants [] [2022-11-21 09:04:46,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-21 09:04:46,708 INFO L156 tatePredicateManager]: 10 out of 10 supporting invariants were superfluous and have been removed [2022-11-21 09:04:46,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:46,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:04:46,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:04:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:46,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 09:04:46,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:04:46,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-11-21 09:04:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:46,913 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-21 09:04:46,915 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:46,976 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 17 states and 20 transitions. Complement of second has 6 states. [2022-11-21 09:04:46,977 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 [2022-11-21 09:04:46,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-11-21 09:04:46,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2022-11-21 09:04:46,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:04:46,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2022-11-21 09:04:46,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:04:46,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2022-11-21 09:04:46,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:04:46,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2022-11-21 09:04:46,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 09:04:46,986 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 20 transitions. [2022-11-21 09:04:46,986 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-21 09:04:46,986 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-21 09:04:46,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 20 transitions. [2022-11-21 09:04:46,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 09:04:46,987 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-11-21 09:04:46,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 20 transitions. [2022-11-21 09:04:46,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-11-21 09:04:46,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:46,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-21 09:04:46,990 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-21 09:04:46,990 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-21 09:04:46,991 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 09:04:46,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2022-11-21 09:04:46,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 09:04:46,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:04:46,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:04:46,993 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-11-21 09:04:46,993 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 09:04:46,993 INFO L748 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 158#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4); 161#L552-3 goto; 168#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 167#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 166#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 165#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 159#L552-1 [2022-11-21 09:04:46,994 INFO L750 eck$LassoCheckResult]: Loop: 159#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 162#L554 assume !(main_#t~mem7#1 <= 10);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int(1 + main_#t~post9#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 153#L552-3 goto; 154#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 159#L552-1 [2022-11-21 09:04:46,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:46,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1805830304, now seen corresponding path program 3 times [2022-11-21 09:04:46,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:46,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961843779] [2022-11-21 09:04:46,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:46,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:47,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:47,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:47,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:47,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1297543, now seen corresponding path program 2 times [2022-11-21 09:04:47,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:47,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130468649] [2022-11-21 09:04:47,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:47,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:47,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:47,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:47,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:47,082 INFO L85 PathProgramCache]: Analyzing trace with hash -707580506, now seen corresponding path program 1 times [2022-11-21 09:04:47,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:47,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104933656] [2022-11-21 09:04:47,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:47,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:47,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-11-21 09:04:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:47,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:47,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104933656] [2022-11-21 09:04:47,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104933656] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:04:47,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600865980] [2022-11-21 09:04:47,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:47,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:04:47,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:47,573 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:04:47,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 09:04:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:47,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-21 09:04:47,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:04:47,751 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-21 09:04:47,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-21 09:04:47,795 INFO L321 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2022-11-21 09:04:47,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 67 [2022-11-21 09:04:47,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 09:04:47,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 09:04:47,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-21 09:04:47,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 09:04:47,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 1 [2022-11-21 09:04:47,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2022-11-21 09:04:47,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-21 09:04:48,066 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 09:04:48,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2022-11-21 09:04:48,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-21 09:04:48,141 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:48,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:04:48,219 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:48,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600865980] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:04:48,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:04:48,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2022-11-21 09:04:48,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515551782] [2022-11-21 09:04:48,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:04:48,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:48,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 09:04:48,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:04:48,364 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:48,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:04:48,510 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-11-21 09:04:48,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 32 transitions. [2022-11-21 09:04:48,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 09:04:48,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 24 states and 26 transitions. [2022-11-21 09:04:48,512 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-21 09:04:48,512 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-21 09:04:48,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 26 transitions. [2022-11-21 09:04:48,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 09:04:48,513 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-21 09:04:48,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 26 transitions. [2022-11-21 09:04:48,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-21 09:04:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:48,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-21 09:04:48,516 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-21 09:04:48,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 09:04:48,518 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-21 09:04:48,518 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-21 09:04:48,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 26 transitions. [2022-11-21 09:04:48,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 09:04:48,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:04:48,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:04:48,521 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 4, 1, 1, 1] [2022-11-21 09:04:48,521 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 09:04:48,521 INFO L748 eck$LassoCheckResult]: Stem: 284#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 285#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4); 294#L552-3 goto; 303#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 302#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 298#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 290#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 291#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 297#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 292#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 293#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 307#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 306#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 305#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 304#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 300#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 295#L552-1 [2022-11-21 09:04:48,522 INFO L750 eck$LassoCheckResult]: Loop: 295#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 296#L554 assume !(main_#t~mem7#1 <= 10);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int(1 + main_#t~post9#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 286#L552-3 goto; 287#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 295#L552-1 [2022-11-21 09:04:48,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:48,522 INFO L85 PathProgramCache]: Analyzing trace with hash 703087812, now seen corresponding path program 4 times [2022-11-21 09:04:48,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:48,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459140532] [2022-11-21 09:04:48,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:48,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:48,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:48,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:48,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:48,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1297543, now seen corresponding path program 3 times [2022-11-21 09:04:48,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:48,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018220103] [2022-11-21 09:04:48,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:48,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:48,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:48,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:48,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:48,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1091176502, now seen corresponding path program 2 times [2022-11-21 09:04:48,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:48,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127120741] [2022-11-21 09:04:48,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:48,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:49,537 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:49,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:49,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127120741] [2022-11-21 09:04:49,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127120741] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:04:49,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423754469] [2022-11-21 09:04:49,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 09:04:49,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:04:49,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:49,541 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:04:49,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 09:04:49,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 09:04:49,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:04:49,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-21 09:04:49,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:04:49,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-21 09:04:49,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 09:04:49,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-21 09:04:49,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-21 09:04:49,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:04:49,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:04:49,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:04:49,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:04:49,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-21 09:04:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:49,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:04:50,022 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:50,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423754469] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:04:50,022 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 09:04:50,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 20 [2022-11-21 09:04:50,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636839512] [2022-11-21 09:04:50,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 09:04:50,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:50,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-21 09:04:50,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=232, Unknown=0, NotChecked=0, Total=380 [2022-11-21 09:04:50,151 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. cyclomatic complexity: 4 Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:50,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:04:50,376 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2022-11-21 09:04:50,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 56 transitions. [2022-11-21 09:04:50,377 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 09:04:50,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 42 states and 44 transitions. [2022-11-21 09:04:50,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-21 09:04:50,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-21 09:04:50,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 44 transitions. [2022-11-21 09:04:50,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 09:04:50,379 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-11-21 09:04:50,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 44 transitions. [2022-11-21 09:04:50,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-21 09:04:50,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:50,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-11-21 09:04:50,382 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-11-21 09:04:50,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-21 09:04:50,384 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-11-21 09:04:50,384 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-21 09:04:50,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 44 transitions. [2022-11-21 09:04:50,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 09:04:50,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:04:50,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:04:50,386 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [11, 10, 10, 1, 1, 1] [2022-11-21 09:04:50,386 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 09:04:50,386 INFO L748 eck$LassoCheckResult]: Stem: 515#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 516#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem4#1, main_#t~mem10#1, main_~i~0#1.base, main_~i~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4);call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4); 521#L552-3 goto; 531#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 530#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 525#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 517#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 518#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 552#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 519#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 520#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 524#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 526#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 551#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 550#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 549#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 548#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 547#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 546#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 545#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 544#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 543#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 542#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 541#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 540#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 539#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 538#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 537#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 536#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 535#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 534#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 533#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 532#L554 assume main_#t~mem7#1 <= 10;havoc main_#t~mem7#1; 528#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 522#L552-1 [2022-11-21 09:04:50,386 INFO L750 eck$LassoCheckResult]: Loop: 522#L552-1 assume !!(main_#t~mem4#1 < 20);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1;call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 523#L554 assume !(main_#t~mem7#1 <= 10);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int(1 + main_#t~post9#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 511#L552-3 goto; 512#L554-1 call main_#t~mem4#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 522#L552-1 [2022-11-21 09:04:50,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:50,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1598657468, now seen corresponding path program 5 times [2022-11-21 09:04:50,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:50,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813435025] [2022-11-21 09:04:50,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:50,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:50,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:50,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:50,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:50,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1297543, now seen corresponding path program 4 times [2022-11-21 09:04:50,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:50,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238569854] [2022-11-21 09:04:50,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:50,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:50,513 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:50,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:50,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:50,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1264869194, now seen corresponding path program 3 times [2022-11-21 09:04:50,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:50,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894471761] [2022-11-21 09:04:50,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:50,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:50,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:50,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:05:04,186 WARN L233 SmtUtils]: Spent 13.42s on a formula simplification. DAG size of input: 203 DAG size of output: 165 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-21 09:05:04,435 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 09:05:04,435 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 09:05:04,435 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 09:05:04,435 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 09:05:04,435 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 09:05:04,435 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:05:04,435 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 09:05:04,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 09:05:04,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Continue1-alloca.i_Iteration5_Lasso [2022-11-21 09:05:04,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 09:05:04,436 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 09:05:04,440 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,445 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,452 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,873 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,877 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,880 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,886 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,890 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,894 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:04,897 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:05:05,254 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 09:05:05,255 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 09:05:05,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:05:05,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:05:05,266 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:05:05,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-21 09:05:05,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:05:05,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:05:05,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:05:05,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:05:05,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:05:05,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:05:05,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:05:05,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:05:05,302 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:05:05,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-21 09:05:05,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:05:05,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:05:05,308 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:05:05,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-21 09:05:05,312 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:05:05,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:05:05,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:05:05,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:05:05,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:05:05,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:05:05,325 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:05:05,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:05:05,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:05:05,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-21 09:05:05,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:05:05,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:05:05,333 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:05:05,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-21 09:05:05,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:05:05,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:05:05,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:05:05,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:05:05,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:05:05,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:05:05,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:05:05,364 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:05:05,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-11-21 09:05:05,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:05:05,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:05:05,379 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:05:05,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:05:05,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-21 09:05:05,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:05:05,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:05:05,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:05:05,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:05:05,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:05:05,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:05:05,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:05:05,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:05:05,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-21 09:05:05,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:05:05,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:05:05,430 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:05:05,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:05:05,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-21 09:05:05,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:05:05,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:05:05,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:05:05,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:05:05,467 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:05:05,467 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:05:05,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:05:05,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-21 09:05:05,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:05:05,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:05:05,499 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:05:05,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-21 09:05:05,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:05:05,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:05:05,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:05:05,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:05:05,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:05:05,524 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:05:05,524 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:05:05,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:05:05,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-21 09:05:05,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:05:05,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:05:05,547 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:05:05,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-21 09:05:05,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:05:05,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:05:05,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:05:05,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:05:05,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:05:05,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:05:05,580 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:05:05,599 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 09:05:05,626 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2022-11-21 09:05:05,627 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. [2022-11-21 09:05:05,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:05:05,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:05:05,630 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:05:05,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-21 09:05:05,642 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 09:05:05,656 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-21 09:05:05,656 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 09:05:05,656 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_2) = -11*v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_2 + 224 Supporting invariants [-22*v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_2 + 23*ULTIMATE.start_main_#t~mem4#1 >= 0] [2022-11-21 09:05:05,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-21 09:05:05,717 INFO L156 tatePredicateManager]: 11 out of 12 supporting invariants were superfluous and have been removed [2022-11-21 09:05:05,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:05:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:05:05,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-21 09:05:05,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:05:05,852 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-21 09:05:05,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-21 09:05:05,889 INFO L321 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2022-11-21 09:05:05,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 67 [2022-11-21 09:05:05,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 09:05:05,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-21 09:05:05,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2022-11-21 09:05:05,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-21 09:05:06,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 09:05:06,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 1 [2022-11-21 09:05:06,100 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 09:05:06,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2022-11-21 09:05:06,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:06,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:06,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-21 09:05:06,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:06,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:06,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:06,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:06,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:06,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:06,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:05:06,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-21 09:05:06,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:05:06,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-11-21 09:05:06,781 INFO L321 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-11-21 09:05:06,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 50 [2022-11-21 09:05:06,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:05:06,880 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.12 stem predicates 3 loop predicates [2022-11-21 09:05:06,880 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4 Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:06,944 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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 42 states and 44 transitions. Complement of second has 5 states. [2022-11-21 09:05:06,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2022-11-21 09:05:06,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:06,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2022-11-21 09:05:06,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 34 letters. Loop has 4 letters. [2022-11-21 09:05:06,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:05:06,949 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 09:05:06,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:05:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:05:07,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-21 09:05:07,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:05:07,090 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-21 09:05:07,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-21 09:05:07,127 INFO L321 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2022-11-21 09:05:07,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 67 [2022-11-21 09:05:07,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 09:05:07,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 09:05:07,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-21 09:05:07,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2022-11-21 09:05:07,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-21 09:05:07,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:07,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:07,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:07,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:07,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:07,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:07,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:07,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:07,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:07,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:05:07,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-21 09:05:07,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:05:07,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-11-21 09:05:08,027 INFO L321 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-11-21 09:05:08,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 50 [2022-11-21 09:05:08,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:05:08,121 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.12 stem predicates 3 loop predicates [2022-11-21 09:05:08,121 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4 Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:08,183 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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 43 states and 45 transitions. Complement of second has 6 states. [2022-11-21 09:05:08,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-21 09:05:08,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2022-11-21 09:05:08,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 34 letters. Loop has 4 letters. [2022-11-21 09:05:08,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:05:08,186 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 09:05:08,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:05:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:05:08,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-21 09:05:08,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:05:08,339 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-21 09:05:08,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-21 09:05:08,370 INFO L321 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2022-11-21 09:05:08,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 71 [2022-11-21 09:05:08,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 09:05:08,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 09:05:08,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 79 [2022-11-21 09:05:08,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2022-11-21 09:05:08,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 09:05:08,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2022-11-21 09:05:20,687 WARN L233 SmtUtils]: Spent 12.05s on a formula simplification. DAG size of input: 40 DAG size of output: 10 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 09:05:20,725 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 09:05:20,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2022-11-21 09:05:20,797 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 09:05:20,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2022-11-21 09:05:20,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:20,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:20,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:21,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:21,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:21,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:21,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:21,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:05:21,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-21 09:05:21,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:05:21,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-11-21 09:05:21,525 INFO L321 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-11-21 09:05:21,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 50 [2022-11-21 09:05:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:05:21,646 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.12 stem predicates 3 loop predicates [2022-11-21 09:05:21,646 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4 Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:22,140 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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 42 states and 44 transitions. Complement of second has 33 states. [2022-11-21 09:05:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 12 stem states 0 non-accepting loop states 2 accepting loop states [2022-11-21 09:05:22,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:22,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 49 transitions. [2022-11-21 09:05:22,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 49 transitions. Stem has 34 letters. Loop has 4 letters. [2022-11-21 09:05:22,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:05:22,144 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 09:05:22,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:05:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:05:22,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-21 09:05:22,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:05:22,297 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-21 09:05:22,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-21 09:05:22,333 INFO L321 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2022-11-21 09:05:22,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 67 [2022-11-21 09:05:22,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 09:05:22,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-21 09:05:22,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-21 09:05:22,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 50 [2022-11-21 09:05:22,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 09:05:22,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-11-21 09:05:22,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-21 09:05:22,525 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 09:05:22,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2022-11-21 09:05:22,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:22,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:22,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:22,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:22,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:22,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:22,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:23,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:23,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-21 09:05:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:05:23,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-21 09:05:23,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:05:23,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-11-21 09:05:23,278 INFO L321 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-11-21 09:05:23,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 50 [2022-11-21 09:05:23,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:05:23,359 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.12 stem predicates 3 loop predicates [2022-11-21 09:05:23,359 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4 Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:23,778 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 44 transitions. cyclomatic complexity: 4. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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 59 states and 62 transitions. Complement of second has 45 states. [2022-11-21 09:05:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 15 states 12 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-21 09:05:23,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:05:23,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 52 transitions. [2022-11-21 09:05:23,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 52 transitions. Stem has 34 letters. Loop has 4 letters. [2022-11-21 09:05:23,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:05:23,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 52 transitions. Stem has 38 letters. Loop has 4 letters. [2022-11-21 09:05:23,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:05:23,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 52 transitions. Stem has 34 letters. Loop has 8 letters. [2022-11-21 09:05:23,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:05:23,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 62 transitions. [2022-11-21 09:05:23,785 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 09:05:23,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 0 states and 0 transitions. [2022-11-21 09:05:23,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-21 09:05:23,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-21 09:05:23,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-21 09:05:23,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:05:23,786 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:05:23,786 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:05:23,786 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:05:23,787 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-21 09:05:23,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-21 09:05:23,787 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 09:05:23,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-21 09:05:23,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 09:05:23 BoogieIcfgContainer [2022-11-21 09:05:23,794 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 09:05:23,794 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:05:23,794 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:05:23,795 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:05:23,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:42" (3/4) ... [2022-11-21 09:05:23,798 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 09:05:23,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:05:23,798 INFO L158 Benchmark]: Toolchain (without parser) took 42243.71ms. Allocated memory was 140.5MB in the beginning and 205.5MB in the end (delta: 65.0MB). Free memory was 109.7MB in the beginning and 96.3MB in the end (delta: 13.5MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. [2022-11-21 09:05:23,799 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory was 67.5MB in the beginning and 67.3MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:05:23,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.49ms. Allocated memory is still 140.5MB. Free memory was 109.3MB in the beginning and 94.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 09:05:23,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.33ms. Allocated memory is still 140.5MB. Free memory was 94.3MB in the beginning and 92.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:05:23,800 INFO L158 Benchmark]: Boogie Preprocessor took 25.49ms. Allocated memory is still 140.5MB. Free memory was 92.6MB in the beginning and 91.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:05:23,800 INFO L158 Benchmark]: RCFGBuilder took 486.22ms. Allocated memory is still 140.5MB. Free memory was 91.3MB in the beginning and 80.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 09:05:23,800 INFO L158 Benchmark]: BuchiAutomizer took 41138.39ms. Allocated memory was 140.5MB in the beginning and 205.5MB in the end (delta: 65.0MB). Free memory was 80.4MB in the beginning and 96.3MB in the end (delta: -15.9MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2022-11-21 09:05:23,801 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 205.5MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:05:23,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory was 67.5MB in the beginning and 67.3MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.49ms. Allocated memory is still 140.5MB. Free memory was 109.3MB in the beginning and 94.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.33ms. Allocated memory is still 140.5MB. Free memory was 94.3MB in the beginning and 92.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.49ms. Allocated memory is still 140.5MB. Free memory was 92.6MB in the beginning and 91.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 486.22ms. Allocated memory is still 140.5MB. Free memory was 91.3MB in the beginning and 80.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 41138.39ms. Allocated memory was 140.5MB in the beginning and 205.5MB in the end (delta: 65.0MB). Free memory was 80.4MB in the beginning and 96.3MB in the end (delta: -15.9MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 205.5MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (3 trivial, 1 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 19 + -2 * unknown-#memory_int-unknown[i][i] and consists of 4 locations. One nondeterministic module has affine ranking function -11 * unknown-#memory_int-unknown[i][i] + 224 and consists of 15 locations. 3 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.0s and 6 iterations. TraceHistogramMax:11. Analysis of lassos took 22.1s. Construction of modules took 0.4s. Büchi inclusion checks took 18.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 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 [1, 0, 0, 1, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 190 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 331 IncrementalHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 60 mSDtfsCounter, 331 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital243 mio100 ax107 hnf100 lsp89 ukn49 mio100 lsp39 div100 bol100 ite100 ukn100 eq183 hnf88 smp95 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 57ms VariablesStem: 5 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-21 09:05:23,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 09:05:24,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 09:05:24,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4a6e63d-9cb1-405b-b658-a3613560d8a3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE