./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b 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_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro --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 682a48acff360d61f631a6f73c43d35eb5554cb5c1e29a6f88508c15be8e86ce --- 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-8393723 [2022-11-18 20:21:03,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:21:04,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:21:04,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:21:04,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:21:04,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:21:04,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:21:04,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:21:04,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:21:04,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:21:04,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:21:04,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:21:04,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:21:04,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:21:04,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:21:04,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:21:04,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:21:04,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:21:04,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:21:04,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:21:04,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:21:04,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:21:04,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:21:04,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:21:04,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:21:04,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:21:04,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:21:04,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:21:04,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:21:04,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:21:04,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:21:04,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:21:04,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:21:04,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:21:04,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:21:04,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:21:04,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:21:04,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:21:04,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:21:04,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:21:04,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:21:04,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 20:21:04,144 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:21:04,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:21:04,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:21:04,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:21:04,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:21:04,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:21:04,147 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:21:04,147 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:21:04,148 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:21:04,148 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:21:04,149 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:21:04,149 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:21:04,150 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:21:04,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:21:04,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:21:04,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:21:04,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:21:04,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:21:04,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:21:04,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:21:04,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:21:04,152 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:21:04,152 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:21:04,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:21:04,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:21:04,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:21:04,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:21:04,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:21:04,155 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:21:04,155 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_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 682a48acff360d61f631a6f73c43d35eb5554cb5c1e29a6f88508c15be8e86ce [2022-11-18 20:21:04,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:21:04,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:21:04,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:21:04,543 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:21:04,544 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:21:04,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i [2022-11-18 20:21:04,634 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/data/97766d08c/660a9a99ca114fb2aa9375cbcbb3166e/FLAGad18771c2 [2022-11-18 20:21:05,133 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:21:05,133 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i [2022-11-18 20:21:05,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/data/97766d08c/660a9a99ca114fb2aa9375cbcbb3166e/FLAGad18771c2 [2022-11-18 20:21:05,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/data/97766d08c/660a9a99ca114fb2aa9375cbcbb3166e [2022-11-18 20:21:05,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:21:05,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:21:05,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:21:05,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:21:05,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:21:05,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc9cb99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05, skipping insertion in model container [2022-11-18 20:21:05,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:21:05,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:21:05,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:21:05,831 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:21:05,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:21:05,861 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:21:05,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05 WrapperNode [2022-11-18 20:21:05,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:21:05,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:21:05,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:21:05,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:21:05,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,910 INFO L138 Inliner]: procedures = 11, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-11-18 20:21:05,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:21:05,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:21:05,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:21:05,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:21:05,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,954 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:21:05,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:21:05,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:21:05,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:21:05,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (1/1) ... [2022-11-18 20:21:05,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:05,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:05,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:06,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:21:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:21:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2022-11-18 20:21:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2022-11-18 20:21:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:21:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:21:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:21:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:21:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:21:06,162 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:21:06,164 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:21:06,347 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:21:06,353 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:21:06,354 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:21:06,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:21:06 BoogieIcfgContainer [2022-11-18 20:21:06,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:21:06,371 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:21:06,371 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:21:06,382 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:21:06,383 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:21:06,384 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:21:05" (1/3) ... [2022-11-18 20:21:06,385 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b16a428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:21:06, skipping insertion in model container [2022-11-18 20:21:06,385 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:21:06,386 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:21:05" (2/3) ... [2022-11-18 20:21:06,386 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b16a428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:21:06, skipping insertion in model container [2022-11-18 20:21:06,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:21:06,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:21:06" (3/3) ... [2022-11-18 20:21:06,388 INFO L332 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex9.i [2022-11-18 20:21:06,451 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:21:06,452 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:21:06,452 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:21:06,452 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:21:06,453 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:21:06,453 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:21:06,453 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:21:06,466 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:21:06,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:21:06,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-11-18 20:21:06,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:21:06,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:21:06,536 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:21:06,536 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:06,537 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:21:06,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:21:06,542 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-11-18 20:21:06,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:21:06,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:21:06,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:21:06,558 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:06,567 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; 9#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~nondet4#1, main_#t~nondet5#1, main_#t~mem7#1, main_#t~post8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~mem6#1, main_~pp~0#1.base, main_~pp~0#1.offset, main_~qq~0#1.base, main_~qq~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4);main_~pp~0#1.base, main_~pp~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(4);main_~qq~0#1.base, main_~qq~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~nondet5#1; 10#L29-3true [2022-11-18 20:21:06,568 INFO L750 eck$LassoCheckResult]: Loop: 10#L29-3true call main_#t~mem6#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4); 7#L29-1true assume !!(main_#t~mem6#1 > 1);havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);main_#t~post8#1 := main_#t~mem7#1;call write~int(main_#t~post8#1 - 1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem7#1;havoc main_#t~post8#1;call main_#t~mem9#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(0, main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem10#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4); 8#L33true call rec(main_~pp~0#1.base, main_~pp~0#1.offset, main_#t~mem10#1);< 13#recENTRYtrue ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 11#L9true assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 15#recFINALtrue assume true; 14#recEXITtrue >#33#return; 5#L33-1true havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem12#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4);call write~int(main_#t~mem11#1 + main_#t~mem12#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem11#1;havoc main_#t~mem12#1; 10#L29-3true [2022-11-18 20:21:06,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:06,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2022-11-18 20:21:06,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:06,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049028767] [2022-11-18 20:21:06,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:06,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:06,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:21:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:06,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:21:06,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:06,835 INFO L85 PathProgramCache]: Analyzing trace with hash 51331199, now seen corresponding path program 1 times [2022-11-18 20:21:06,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:06,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540698374] [2022-11-18 20:21:06,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:06,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:07,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:21:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:07,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:07,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:07,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540698374] [2022-11-18 20:21:07,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540698374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:07,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:07,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:21:07,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736854909] [2022-11-18 20:21:07,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:07,801 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:21:07,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:07,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:21:07,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:21:07,859 INFO L87 Difference]: Start difference. First operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:21:08,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:08,065 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-11-18 20:21:08,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2022-11-18 20:21:08,072 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-11-18 20:21:08,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 16 transitions. [2022-11-18 20:21:08,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-18 20:21:08,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-18 20:21:08,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2022-11-18 20:21:08,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:21:08,084 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-18 20:21:08,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2022-11-18 20:21:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-18 20:21:08,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 20:21:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-18 20:21:08,119 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-18 20:21:08,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:21:08,126 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-18 20:21:08,128 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:21:08,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 16 transitions. [2022-11-18 20:21:08,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-11-18 20:21:08,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:21:08,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:21:08,132 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:21:08,132 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:08,133 INFO L748 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 56#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem7#1, main_#t~post8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~mem6#1, main_~pp~0#1.base, main_~pp~0#1.offset, main_~qq~0#1.base, main_~qq~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4);main_~pp~0#1.base, main_~pp~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(4);main_~qq~0#1.base, main_~qq~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~nondet5#1; 57#L29-3 [2022-11-18 20:21:08,134 INFO L750 eck$LassoCheckResult]: Loop: 57#L29-3 call main_#t~mem6#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4); 58#L29-1 assume !!(main_#t~mem6#1 > 1);havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);main_#t~post8#1 := main_#t~mem7#1;call write~int(main_#t~post8#1 - 1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem7#1;havoc main_#t~post8#1;call main_#t~mem9#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(0, main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem10#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4); 61#L33 call rec(main_~pp~0#1.base, main_~pp~0#1.offset, main_#t~mem10#1);< 66#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 59#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 60#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 66#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 59#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 62#recFINAL assume true; 67#recEXIT >#31#return; 63#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 64#recFINAL assume true; 68#recEXIT >#33#return; 65#L33-1 havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem12#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4);call write~int(main_#t~mem11#1 + main_#t~mem12#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem11#1;havoc main_#t~mem12#1; 57#L29-3 [2022-11-18 20:21:08,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:08,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 2 times [2022-11-18 20:21:08,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:08,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960413764] [2022-11-18 20:21:08,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:08,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:08,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:21:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:08,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:21:08,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:08,182 INFO L85 PathProgramCache]: Analyzing trace with hash 198344305, now seen corresponding path program 1 times [2022-11-18 20:21:08,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:08,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137798688] [2022-11-18 20:21:08,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:08,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:08,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:21:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:08,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:21:08,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:08,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1849555021, now seen corresponding path program 1 times [2022-11-18 20:21:08,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:08,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522883625] [2022-11-18 20:21:08,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:08,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:08,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:21:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:21:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:21:08,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:08,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522883625] [2022-11-18 20:21:08,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522883625] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:21:08,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142170655] [2022-11-18 20:21:08,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:08,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:21:08,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:08,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:21:08,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:21:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:08,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:21:08,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:09,014 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 [2022-11-18 20:21:09,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:09,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 20 treesize of output 12 [2022-11-18 20:21:09,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:21:09,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:09,507 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 35 treesize of output 27 [2022-11-18 20:21:09,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:21:09,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142170655] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:09,520 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:21:09,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 15 [2022-11-18 20:21:09,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166483390] [2022-11-18 20:21:09,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:10,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:10,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:21:10,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:21:10,787 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 20:21:10,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:10,928 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-11-18 20:21:10,928 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2022-11-18 20:21:10,929 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-11-18 20:21:10,930 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 19 transitions. [2022-11-18 20:21:10,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-11-18 20:21:10,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-18 20:21:10,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2022-11-18 20:21:10,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:21:10,932 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-18 20:21:10,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2022-11-18 20:21:10,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-18 20:21:10,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-18 20:21:10,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-18 20:21:10,935 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-18 20:21:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:21:10,936 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-18 20:21:10,937 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:21:10,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 19 transitions. [2022-11-18 20:21:10,938 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-11-18 20:21:10,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:21:10,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:21:10,939 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:21:10,939 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:10,940 INFO L748 eck$LassoCheckResult]: Stem: 216#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem7#1, main_#t~post8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~mem6#1, main_~pp~0#1.base, main_~pp~0#1.offset, main_~qq~0#1.base, main_~qq~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4);main_~pp~0#1.base, main_~pp~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(4);main_~qq~0#1.base, main_~qq~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~nondet5#1; 218#L29-3 [2022-11-18 20:21:10,940 INFO L750 eck$LassoCheckResult]: Loop: 218#L29-3 call main_#t~mem6#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4); 219#L29-1 assume !!(main_#t~mem6#1 > 1);havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);main_#t~post8#1 := main_#t~mem7#1;call write~int(main_#t~post8#1 - 1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem7#1;havoc main_#t~post8#1;call main_#t~mem9#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(0, main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem10#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4); 221#L33 call rec(main_~pp~0#1.base, main_~pp~0#1.offset, main_#t~mem10#1);< 227#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 220#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 222#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 227#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 220#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 222#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 227#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 220#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 223#recFINAL assume true; 228#recEXIT >#31#return; 224#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 225#recFINAL assume true; 232#recEXIT >#31#return; 230#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 231#recFINAL assume true; 229#recEXIT >#33#return; 226#L33-1 havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem12#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4);call write~int(main_#t~mem11#1 + main_#t~mem12#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem11#1;havoc main_#t~mem12#1; 218#L29-3 [2022-11-18 20:21:10,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:10,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 3 times [2022-11-18 20:21:10,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:10,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756183777] [2022-11-18 20:21:10,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:10,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:10,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:21:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:10,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:21:10,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:10,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1148543297, now seen corresponding path program 2 times [2022-11-18 20:21:10,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:10,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617717861] [2022-11-18 20:21:10,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:10,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:10,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:21:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:11,005 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:21:11,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:11,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1421169023, now seen corresponding path program 2 times [2022-11-18 20:21:11,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:11,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097082702] [2022-11-18 20:21:11,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:11,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:11,037 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:21:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:21:11,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:21:13,474 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:21:13,475 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:21:13,475 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:21:13,475 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:21:13,475 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:21:13,476 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:13,476 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:21:13,477 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:21:13,477 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex9.i_Iteration3_Lasso [2022-11-18 20:21:13,477 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:21:13,478 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:21:13,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,507 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,510 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,513 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,515 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,518 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,520 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,524 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,526 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,530 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,798 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,801 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,803 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,806 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,808 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,811 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:13,813 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:21:14,203 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:21:14,207 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:21:14,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,215 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,237 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 [2022-11-18 20:21:14,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:21:14,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:21:14,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:21:14,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:21:14,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-11-18 20:21:14,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,266 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:21:14,275 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 [2022-11-18 20:21:14,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:21:14,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:21:14,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:21:14,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:14,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,331 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,340 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 [2022-11-18 20:21:14,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:21:14,360 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:21:14,360 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:21:14,364 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-18 20:21:14,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,368 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 20:21:14,375 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 [2022-11-18 20:21:14,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:21:14,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,386 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:21:14,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:21:14,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:14,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,420 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 20:21:14,424 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 [2022-11-18 20:21:14,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:21:14,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:21:14,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:21:14,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:14,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,445 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 20:21:14,448 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 [2022-11-18 20:21:14,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:21:14,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:21:14,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:21:14,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:14,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,466 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 20:21:14,468 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 [2022-11-18 20:21:14,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:21:14,483 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:21:14,508 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-18 20:21:14,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,512 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 20:21:14,517 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 [2022-11-18 20:21:14,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:21:14,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,528 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:21:14,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:21:14,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:14,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,555 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 20:21:14,557 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 [2022-11-18 20:21:14,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:21:14,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:21:14,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:21:14,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:14,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,580 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 20:21:14,583 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 [2022-11-18 20:21:14,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:21:14,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:21:14,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:14,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,616 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 20:21:14,619 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 [2022-11-18 20:21:14,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:21:14,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:21:14,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-11-18 20:21:14,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,644 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 20:21:14,647 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 [2022-11-18 20:21:14,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:21:14,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:21:14,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,686 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Exception during sending of exit command (exit): Broken pipe [2022-11-18 20:21:14,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-18 20:21:14,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,693 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 20:21:14,699 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 [2022-11-18 20:21:14,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:21:14,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:21:14,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:14,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,756 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,768 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 [2022-11-18 20:21:14,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:21:14,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:21:14,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:21:14,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 20:21:14,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:21:14,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:14,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,813 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,828 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 [2022-11-18 20:21:14,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:21:14,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:21:14,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:21:14,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:21:14,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 20:21:14,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:21:14,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:21:14,864 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:21:14,901 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-11-18 20:21:14,901 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-11-18 20:21:14,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:21:14,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:21:14,905 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:21:14,913 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:21:14,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 20:21:14,963 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:21:14,963 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:21:14,963 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0#1.base) ULTIMATE.start_main_~qq~0#1.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0#1.base) ULTIMATE.start_main_~qq~0#1.offset)_1 Supporting invariants [] [2022-11-18 20:21:14,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-11-18 20:21:14,996 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2022-11-18 20:21:15,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:15,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:21:15,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:15,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-18 20:21:15,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:15,311 INFO L321 Elim1Store]: treesize reduction 52, result has 52.3 percent of original size [2022-11-18 20:21:15,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 130 treesize of output 316 [2022-11-18 20:21:15,333 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 17 treesize of output 15 [2022-11-18 20:21:15,354 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 25 treesize of output 24 [2022-11-18 20:21:15,378 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 25 treesize of output 19 [2022-11-18 20:21:15,405 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 20 treesize of output 14 [2022-11-18 20:21:15,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:15,908 INFO L321 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2022-11-18 20:21:15,909 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 414 treesize of output 409 [2022-11-18 20:21:16,311 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:21:16,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 58 treesize of output 58 [2022-11-18 20:21:16,394 INFO L321 Elim1Store]: treesize reduction 24, result has 25.0 percent of original size [2022-11-18 20:21:16,395 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 3 case distinctions, treesize of input 602 treesize of output 530 [2022-11-18 20:21:16,842 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 9 treesize of output 7 [2022-11-18 20:21:16,853 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 7 treesize of output 5 [2022-11-18 20:21:17,411 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 6 treesize of output 5 [2022-11-18 20:21:17,560 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:21:17,561 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 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-18 20:21:17,916 INFO L321 Elim1Store]: treesize reduction 64, result has 53.3 percent of original size [2022-11-18 20:21:17,916 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 5 case distinctions, treesize of input 139 treesize of output 202 [2022-11-18 20:21:17,989 INFO L321 Elim1Store]: treesize reduction 8, result has 83.7 percent of original size [2022-11-18 20:21:17,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 81 [2022-11-18 20:21:18,021 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:21:18,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 69 treesize of output 70 [2022-11-18 20:21:18,034 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 61 treesize of output 57 [2022-11-18 20:21:19,181 INFO L321 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-11-18 20:21:19,182 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 3 case distinctions, treesize of input 32 treesize of output 35 [2022-11-18 20:21:19,204 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 [2022-11-18 20:21:19,216 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:21:19,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 20 treesize of output 24 [2022-11-18 20:21:19,350 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-18 20:21:19,351 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 1 case distinctions, treesize of input 21 treesize of output 5 [2022-11-18 20:21:19,355 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 [2022-11-18 20:21:19,392 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-18 20:21:19,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:19,427 INFO L321 Elim1Store]: treesize reduction 25, result has 26.5 percent of original size [2022-11-18 20:21:19,427 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 2 case distinctions, treesize of input 33 treesize of output 27 [2022-11-18 20:21:19,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:19,551 INFO L321 Elim1Store]: treesize reduction 28, result has 30.0 percent of original size [2022-11-18 20:21:19,551 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 1 case distinctions, treesize of input 25 treesize of output 22 [2022-11-18 20:21:19,563 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 9 treesize of output 7 [2022-11-18 20:21:19,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:19,651 INFO L321 Elim1Store]: treesize reduction 51, result has 37.0 percent of original size [2022-11-18 20:21:19,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 48 [2022-11-18 20:21:19,700 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 9 treesize of output 7 [2022-11-18 20:21:19,745 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 9 treesize of output 7 [2022-11-18 20:21:19,765 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:21:19,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 19 treesize of output 23 [2022-11-18 20:21:20,085 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:21:20,088 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 15 loop predicates [2022-11-18 20:21:20,090 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:21:20,241 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4. Second operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Result 33 states and 45 transitions. Complement of second has 17 states. [2022-11-18 20:21:20,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2022-11-18 20:21:20,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:21:20,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2022-11-18 20:21:20,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. Stem has 2 letters. Loop has 20 letters. [2022-11-18 20:21:20,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:21:20,246 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:21:20,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:20,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:21:20,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:20,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-18 20:21:20,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:20,476 INFO L321 Elim1Store]: treesize reduction 52, result has 52.3 percent of original size [2022-11-18 20:21:20,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 130 treesize of output 316 [2022-11-18 20:21:20,497 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 17 treesize of output 15 [2022-11-18 20:21:20,519 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 25 treesize of output 24 [2022-11-18 20:21:20,537 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 25 treesize of output 19 [2022-11-18 20:21:20,573 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 20 treesize of output 14 [2022-11-18 20:21:20,807 INFO L321 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2022-11-18 20:21:20,808 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 251 treesize of output 251 [2022-11-18 20:21:20,964 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:21:20,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 58 treesize of output 58 [2022-11-18 20:21:21,263 INFO L321 Elim1Store]: treesize reduction 24, result has 25.0 percent of original size [2022-11-18 20:21:21,264 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 3 case distinctions, treesize of input 465 treesize of output 420 [2022-11-18 20:21:21,365 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 9 treesize of output 7 [2022-11-18 20:21:21,398 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 9 treesize of output 7 [2022-11-18 20:21:21,490 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 17 treesize of output 13 [2022-11-18 20:21:21,505 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 15 treesize of output 11 [2022-11-18 20:21:21,513 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 7 treesize of output 5 [2022-11-18 20:21:22,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:22,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:22,032 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:21:22,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 50 [2022-11-18 20:21:22,056 INFO L321 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2022-11-18 20:21:22,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 25 treesize of output 33 [2022-11-18 20:21:22,100 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:21:22,101 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 13 loop predicates [2022-11-18 20:21:22,101 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:21:22,240 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4. Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Result 34 states and 46 transitions. Complement of second has 19 states. [2022-11-18 20:21:22,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-18 20:21:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:21:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2022-11-18 20:21:22,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 8 transitions. Stem has 2 letters. Loop has 20 letters. [2022-11-18 20:21:22,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:21:22,245 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:21:22,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:22,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:21:22,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:22,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-18 20:21:22,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:22,475 INFO L321 Elim1Store]: treesize reduction 52, result has 52.3 percent of original size [2022-11-18 20:21:22,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 130 treesize of output 316 [2022-11-18 20:21:22,493 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 17 treesize of output 15 [2022-11-18 20:21:22,528 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 25 treesize of output 19 [2022-11-18 20:21:22,543 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 25 treesize of output 24 [2022-11-18 20:21:22,577 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 20 treesize of output 14 [2022-11-18 20:21:22,830 INFO L321 Elim1Store]: treesize reduction 24, result has 25.0 percent of original size [2022-11-18 20:21:22,831 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 3 case distinctions, treesize of input 237 treesize of output 188 [2022-11-18 20:21:22,881 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 7 treesize of output 5 [2022-11-18 20:21:22,921 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 15 treesize of output 11 [2022-11-18 20:21:22,937 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 71 treesize of output 65 [2022-11-18 20:21:22,953 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:21:22,953 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 70 [2022-11-18 20:21:23,000 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 20:21:23,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 20 treesize of output 16 [2022-11-18 20:21:23,011 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 7 treesize of output 5 [2022-11-18 20:21:23,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:23,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:23,514 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:21:23,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 50 [2022-11-18 20:21:23,556 INFO L321 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2022-11-18 20:21:23,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 25 treesize of output 33 [2022-11-18 20:21:23,587 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:21:23,588 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 13 loop predicates [2022-11-18 20:21:23,588 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:21:23,694 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4. Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Result 33 states and 45 transitions. Complement of second has 17 states. [2022-11-18 20:21:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2022-11-18 20:21:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:21:23,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2022-11-18 20:21:23,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 20 letters. [2022-11-18 20:21:23,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:21:23,698 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:21:23,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:23,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:21:23,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:23,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-18 20:21:23,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:23,906 INFO L321 Elim1Store]: treesize reduction 52, result has 52.3 percent of original size [2022-11-18 20:21:23,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 130 treesize of output 316 [2022-11-18 20:21:23,921 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 17 treesize of output 15 [2022-11-18 20:21:23,939 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 25 treesize of output 19 [2022-11-18 20:21:23,953 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 25 treesize of output 24 [2022-11-18 20:21:23,991 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 20 treesize of output 14 [2022-11-18 20:21:24,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:21:24,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:21:24,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 64 treesize of output 54 [2022-11-18 20:21:24,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:21:24,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:21:24,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 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 64 treesize of output 54 [2022-11-18 20:21:24,233 INFO L321 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2022-11-18 20:21:24,234 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 229 treesize of output 229 [2022-11-18 20:21:24,352 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:21:24,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 58 treesize of output 58 [2022-11-18 20:21:24,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 7 treesize of output 5 [2022-11-18 20:21:24,496 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 7 treesize of output 5 [2022-11-18 20:21:25,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:25,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:25,185 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:21:25,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 175 [2022-11-18 20:21:25,208 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 15 treesize of output 11 [2022-11-18 20:21:25,242 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 57 treesize of output 53 [2022-11-18 20:21:25,256 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 9 treesize of output 7 [2022-11-18 20:21:25,309 INFO L321 Elim1Store]: treesize reduction 29, result has 40.8 percent of original size [2022-11-18 20:21:25,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 45 [2022-11-18 20:21:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 1 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:21:25,363 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 13 loop predicates [2022-11-18 20:21:25,363 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:21:25,520 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4. Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Result 34 states and 46 transitions. Complement of second has 19 states. [2022-11-18 20:21:25,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-18 20:21:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:21:25,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2022-11-18 20:21:25,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 2 letters. Loop has 20 letters. [2022-11-18 20:21:25,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:21:25,527 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:21:25,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:25,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:21:25,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:25,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-18 20:21:25,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:25,753 INFO L321 Elim1Store]: treesize reduction 52, result has 52.3 percent of original size [2022-11-18 20:21:25,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 130 treesize of output 316 [2022-11-18 20:21:25,768 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 25 treesize of output 24 [2022-11-18 20:21:25,787 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 17 treesize of output 15 [2022-11-18 20:21:25,807 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 25 treesize of output 19 [2022-11-18 20:21:25,831 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 20 treesize of output 14 [2022-11-18 20:21:25,883 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:21:25,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:21:25,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 172 [2022-11-18 20:21:25,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:21:25,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:21:25,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:21:25,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:21:25,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 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 110 treesize of output 164 [2022-11-18 20:21:26,037 INFO L321 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2022-11-18 20:21:26,037 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 56 [2022-11-18 20:21:26,156 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:21:26,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 75 treesize of output 75 [2022-11-18 20:21:26,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:21:26,293 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 191 treesize of output 141 [2022-11-18 20:21:26,322 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 15 treesize of output 11 [2022-11-18 20:21:26,350 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 7 treesize of output 5 [2022-11-18 20:21:26,359 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 7 treesize of output 5 [2022-11-18 20:21:27,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:27,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:21:27,273 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:21:27,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 272 treesize of output 249 [2022-11-18 20:21:27,291 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-18 20:21:27,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-11-18 20:21:27,324 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 15 treesize of output 11 [2022-11-18 20:21:27,330 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 57 treesize of output 53 [2022-11-18 20:21:27,361 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 15 treesize of output 11 [2022-11-18 20:21:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 1 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:21:27,398 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 13 loop predicates [2022-11-18 20:21:27,399 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:21:27,569 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,571 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,583 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,584 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,588 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,639 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,640 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,643 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,646 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,648 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,649 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,650 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,651 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,657 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,659 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,672 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,674 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,676 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,681 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,683 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,686 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,686 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,687 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,688 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,691 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,692 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,694 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,695 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,695 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,697 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,706 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,707 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,710 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,713 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,715 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,716 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,716 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,717 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,750 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,753 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,754 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,756 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,756 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,757 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,757 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,762 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,765 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,767 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,769 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,770 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,770 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,771 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,772 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,774 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,774 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,775 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,775 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,777 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,791 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,793 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,793 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,794 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,798 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,799 WARN L278 uchiComplementFKVNwa]: big16 [2022-11-18 20:21:27,800 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,801 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,803 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,804 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,806 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,807 WARN L278 uchiComplementFKVNwa]: big8 [2022-11-18 20:21:27,854 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Result 1106 states and 3582 transitions. Complement of second has 1077 states 13 powerset states1064 rank states. The highest rank that occured is 9 [2022-11-18 20:21:27,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-18 20:21:27,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:21:27,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 44 transitions. [2022-11-18 20:21:27,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 44 transitions. Stem has 2 letters. Loop has 20 letters. [2022-11-18 20:21:27,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:21:27,864 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:21:27,864 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: no settings was sufficient at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.refineBuchiInternal(AbstractBuchiCegarLoop.java:663) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:404) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.runCegarLoops(BuchiAutomizerObserver.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:157) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:341) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-18 20:21:27,867 INFO L158 Benchmark]: Toolchain (without parser) took 22345.24ms. Allocated memory was 123.7MB in the beginning and 272.6MB in the end (delta: 148.9MB). Free memory was 87.7MB in the beginning and 152.9MB in the end (delta: -65.2MB). Peak memory consumption was 123.4MB. Max. memory is 16.1GB. [2022-11-18 20:21:27,868 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:21:27,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.53ms. Allocated memory is still 123.7MB. Free memory was 87.5MB in the beginning and 98.3MB in the end (delta: -10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:21:27,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.76ms. Allocated memory is still 123.7MB. Free memory was 98.3MB in the beginning and 96.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:21:27,869 INFO L158 Benchmark]: Boogie Preprocessor took 44.30ms. Allocated memory is still 123.7MB. Free memory was 96.9MB in the beginning and 95.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:21:27,869 INFO L158 Benchmark]: RCFGBuilder took 399.22ms. Allocated memory is still 123.7MB. Free memory was 95.6MB in the beginning and 83.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:21:27,870 INFO L158 Benchmark]: BuchiAutomizer took 21495.81ms. Allocated memory was 123.7MB in the beginning and 272.6MB in the end (delta: 148.9MB). Free memory was 83.7MB in the beginning and 152.9MB in the end (delta: -69.2MB). Peak memory consumption was 121.8MB. Max. memory is 16.1GB. [2022-11-18 20:21:27,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.53ms. Allocated memory is still 123.7MB. Free memory was 87.5MB in the beginning and 98.3MB in the end (delta: -10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.76ms. Allocated memory is still 123.7MB. Free memory was 98.3MB in the beginning and 96.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.30ms. Allocated memory is still 123.7MB. Free memory was 96.9MB in the beginning and 95.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 399.22ms. Allocated memory is still 123.7MB. Free memory was 95.6MB in the beginning and 83.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 21495.81ms. Allocated memory was 123.7MB in the beginning and 272.6MB in the end (delta: 148.9MB). Free memory was 83.7MB in the beginning and 152.9MB in the end (delta: -69.2MB). Peak memory consumption was 121.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: no settings was sufficient de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: no settings was sufficient: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.refineBuchiInternal(AbstractBuchiCegarLoop.java:663) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-18 20:21:27,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:28,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47b69737-99dc-49f3-8d02-d8005f3a9091/bin/uautomizer-TMbwUNV5ro/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: no settings was sufficient